[CentOS] apache httpd, webdav, ssl - something is wrong, but what?
Hi, happy new year! Today I set up a new web(dav) server for our .ical-System (phpIcalendar) and copied the config and data files from the old server. But somthing is wrong with the configuration and I'm blind to find the error. On the old server, I can still publish my calender from e.g. Apple iCal at the server URL with http http://oldserver.filmakademie.de/DAVdocs On the new server, I can publish only with https - so only ssl secured. https://newserver.filmakademie.de/DAVdocs The webpage for the calendars can be accessed unsecured with http. http://oldserver.filmakademie.de/ http://newserver.filmakademie.de/ Thanks for any hint or support or suggestion to find the error. -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reini...@filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia Hübner Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium Geschäftsführer: Prof. Thomas Schadt ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Problems with IPTABLES recent module.
James B. Byrne wrote: > > On Fri, January 8, 2010 15:32, James B. Byrne wrote: >> I went to reload (iptables-restore) my iptables configuration and >> obtained an error at the COMMIT statement. No further details were >> provided even when I ran restore with the -v option. >> > > > I ran lsmod and I do not find that ipt_recent is loaded. In fact, I > don not see any ipt modules other than itp_LOG. There was a recent > kernel update. Does anyone know if this had any adverse effects on > loading ipt_recent? > > . . . > ip_tables 17029 3 > iptable_nat,iptable_mangle,iptable_filter > ipt_LOG10049 6 > ipv6 267489 23 ip6t_REJECT > . . . > > And this does not look good either: > > # modprobe --first-time ipt_recent > FATAL: Error inserting ipt_recent > (/lib/modules/2.6.18-164.9.1.el5/kernel/net/ipv4/netfilter/ipt_recent.ko): > Unknown symbol in module, or unknown parameter (see dmesg) > > There is no entry in /var/log/dmesg relating to this problem. > fwiw, no problem here with the before-last kernel: [r...@tryo nthierry]# uname -a Linux tryo.imag.fr 2.6.18-164.9.1.el5 #1 SMP Tue Dec 15 20:57:57 EST 2009 x86_64 x86_64 x86_64 GNU/Linux [r...@tryo nthierry]# modprobe --first-time ipt_recent [r...@tryo nthierry]# lsmod | grep ipt_recent ipt_recent 42969 0 x_tables 50505 5 ipt_recent,ipt_REJECT,xt_state,xt_tcpudp,ip_tables And also no problem with the latest kernel: [after a reboot to 2.6.18-164.10.1.el5] [r...@tryo nthierry]# uname -a Linux tryo.imag.fr 2.6.18-164.10.1.el5 #1 SMP Thu Jan 7 19:54:26 EST 2010 x86_64 x86_64 x86_64 GNU/Linux [r...@tryo nthierry]# modprobe --first-time ipt_recent [r...@tryo nthierry]# lsmod ipt_recent Usage: lsmod [r...@tryo nthierry]# lsmod | grep ipt_recent ipt_recent 42969 0 x_tables 50505 5 ipt_recent,ipt_REJECT,xt_state,xt_tcpudp,ip_tables what's your kernel? did you reboot after upgrading? modprobe is trying to insert the 2.6.18-164.9.1.el5 module, but you mentioned the latest kernel upgrade (which is 164-10.1) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 CPU's problem(Centos5)
On Saturday 09 January 2010, Anas Alnaffar wrote: > I'll install cpufreq-utils and microcode-ctl, and I'll be right back to u > soon, if I need to install another packages or doing kernel update please > let me know, As I wrote in my first answer. The warning from microcode-ctl can be safely ignored. But, the kernel you are running is ancient which hints at a real problem => your system is vulnerable to a few years worth of CVEs. You should consider upgrading but if this is recently installed I'd simply suggest re-installing with latest CentOS-5(.4). /Peter > Thanks John > > Anas Al-Naffar signature.asc Description: This is a digitally signed message part. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] looking for kernel-xen- 2.6.18-164.el5
Hi all, does anyone know where I can download kernel-xen- 2.6.18-164.el5 for CentOS 5? I can't install it with yum, since yum has a much newer version already. I have searched google, but can't find a download link, only a lot of references to the kernel w.r.t problems. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
Rudi Ahlers schrieb: > Hi all, > > does anyone know where I can download kernel-xen- 2.6.18-164.el5 for > CentOS 5? I can't install it with yum, since yum has a much newer > version already. I have searched google, but can't find a download > link, only a lot of references to the kernel w.r.t problems. > ftp://zid-lux1.uibk.ac.at/pub/dist/centos/5/os/i386/CentOS/kernel-xen-2.6.18-164.el5.i686.rpm and ftp://zid-lux1.uibk.ac.at/pub/dist/centos/5/os/x86_64/CentOS/kernel-xen-2.6.18-164.el5.x86_64.rpm Works for me. Regards. /Götz -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reini...@filmakademie.de Filmakademie Baden-Württemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia Hübner Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium Geschäftsführer: Prof. Thomas Schadt ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
Rudi Ahlers wrote: > Hi all, > > does anyone know where I can download kernel-xen- 2.6.18-164.el5 for > CentOS 5? I can't install it with yum, since yum has a much newer > version already. I have searched google, but can't find a download > link, only a lot of references to the kernel w.r.t problems. > > isn't that the stock 5.4 kernel? http://mirror.centos.org/centos-5/5.4/os/x86_64/CentOS/ (replace x86_64 with i386 if needed) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] rsync optimization
Hi, We currently have upload servers in one data center(A), and users upload the images there. We have storage server in another data center(B). When users upload many images at the same time, we face sync difficulties. On B, we use rsync in server mode, with authentication. On A, we use `rsync -azpogtRv --safe-links 1/ rsync://u...@serverb/img/ --password-file=/var/www/r.passwd ` Both ends run centos 5.3 X86_64. Any suggestions to optimize rsync in this case? Thank you in advance. 2010-01-11 xufengnju ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] rsync optimization
Quoting xufengnju : > Hi, > > We currently have upload servers in one data center(A), and users > upload the images there. We have storage server in another data > center(B). When users upload many images at the same time, we face > sync difficulties. > > On B, we use rsync in server mode, with authentication. > On A, we use `rsync -azpogtRv --safe-links 1/ > rsync://u...@serverb/img/ --password-file=/var/www/r.passwd ` > > Both ends run centos 5.3 X86_64. > > Any suggestions to optimize rsync in this case? Well, at least remove v (verbose) and possibly also z (compression) -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On 01/08/2010 05:28 PM, R-Elists wrote: > what is wrong or what problems are you referring to with cciss please ? > problems mostly centered around management and performance issues. the world is littered with stores of cciss fail -- Karanbir Singh London, UK| http://www.karan.org/ | twitter.com/kbsingh ICQ: 2522219 | Yahoo IM: z00dax | Gtalk: z00dax GnuPG Key : http://www.karan.org/publickey.asc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On Fri, Jan 08, 2010 at 12:33:39PM +0100, Rainer Duffner wrote: > Karanbir Singh schrieb: > > On 01/08/2010 01:58 AM, Christopher Chan wrote: > > > >>> the thumpers make for decent backup or vtl type roles, not so much for > >>> online high density storage. > >>> > >> I wonder how much that would change with a bbu NVRAM card for an > >> external journal for ext4 and the disks on md. Unless one cannot add a > >> bbu NVRAM card... > >> > > > > Good question, they are after all ( the Sun 45xx's ) just opteron box's > > with a mostly standard build. Finding a CentOS compatible ( drivers > > pre-included, and not crap like cciss ) would not be too hard. > > > > > > > With ZFS, the whole machine is the RAID-controller (basically). > NVRAM in ZFS would be used for L2ARC. > Of course, this ask for a sane system-desgin (which the thumpers do > have, as mentioned - AFAIK, there are virtually no off-the-shelf > motherboads that can offer the thumper's distribution of SATA-channels > over HT-links. > > CentOS wouldn't run bad on such a motherboard, either (and RHEL is > supported). > ;-) > Last time I checked only RHEL4 was support.. RHEL5 lacks (properly working) SATA driver for the controller used in the thumper. Is RHEL5 supported/working nowadays? -- Pasi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] rsync optimization
On Mon, Jan 11, 2010 at 4:36 AM, xufengnju wrote: > Hi, > > We currently have upload servers in one data center(A), and users upload the > images there. We have storage server in another data center(B). When users > upload many images at the same time, we face sync difficulties. > > On B, we use rsync in server mode, with authentication. > On A, we use `rsync -azpogtRv --safe-links 1/ > rsync://u...@serverb/img/ --password-file=/var/www/r.passwd ` > > Both ends run centos 5.3 X86_64. > > Any suggestions to optimize rsync in this case? You can add the following options: --ignore-times --delay-updates The first will speed up the comparison. The second can prevent some errors related to synchronization on the receiving side. BTW, have you considered using a DRBD volume with GFS? This might work better than rsync, depending on your configuration. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On Monday 11 January 2010, Karanbir Singh wrote: > On 01/08/2010 05:28 PM, R-Elists wrote: > > what is wrong or what problems are you referring to with cciss please ? > > problems mostly centered around management and performance issues. the > world is littered with stores of cciss fail I would certainly not go as far as saying that I like cciss, but, they are imho not much worse than other products. We currently have ~500T on p800 and it behaves quite well. As for the specifics: - Management: hpacucli is certainly odd, but then again neither tw_cli (3ware) nor cli64 (areca) shines. - Performance: certainly not a strong point, but a p800 can sustain quite a bit more than the 1G ethernet link I need. /Peter signature.asc Description: This is a digitally signed message part. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Select pam module for select users
Dear CentOS people, Maybe I didn't read enough, but is there a way to use pam_ldap for some users (w/o trying pam_krb5 first, which is listed before pam_ldap) and pam_krb5 for others. Thank you, --Koji ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On Mon, Jan 11, 2010 at 03:00:41PM +0200, Pasi Kärkkäinen wrote: > On Fri, Jan 08, 2010 at 12:33:39PM +0100, Rainer Duffner wrote: > > Karanbir Singh schrieb: > > > On 01/08/2010 01:58 AM, Christopher Chan wrote: > > > > > >>> the thumpers make for decent backup or vtl type roles, not so much for > > >>> online high density storage. > > >>> > > >> I wonder how much that would change with a bbu NVRAM card for an > > >> external journal for ext4 and the disks on md. Unless one cannot add a > > >> bbu NVRAM card... > > >> > > > > > > Good question, they are after all ( the Sun 45xx's ) just opteron box's > > > with a mostly standard build. Finding a CentOS compatible ( drivers > > > pre-included, and not crap like cciss ) would not be too hard. > > > > > > > > > > > > With ZFS, the whole machine is the RAID-controller (basically). > > NVRAM in ZFS would be used for L2ARC. > > Of course, this ask for a sane system-desgin (which the thumpers do > > have, as mentioned - AFAIK, there are virtually no off-the-shelf > > motherboads that can offer the thumper's distribution of SATA-channels > > over HT-links. > > > > CentOS wouldn't run bad on such a motherboard, either (and RHEL is > > supported). > > ;-) > > > > Last time I checked only RHEL4 was support.. RHEL5 lacks (properly working) > SATA driver for the controller used in the thumper. > > Is RHEL5 supported/working nowadays? > It seems X4500 (not available anymore) had Marvell SATA controllers, that are not supported with RHEL5. X4540 uses LSI SATA controllers, that are supported. -- Pasi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
Am 11.01.2010 15:26, schrieb Pasi Kärkkäinen: > > It seems X4500 (not available anymore) had Marvell SATA controllers, that > are not supported with RHEL5. > > X4540 uses LSI SATA controllers, that are supported. > Indeed: http://www.sun.com/servers/x64/x4540/os.jsp 5.3+ is needed. Of course, for a true Solaris-admin, this would be a big waste. ;-) But if you have an application that runs on Linux (but not Solaris) or runs much more stable on Linux, this is a viable option. Regards, Rainer ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On Mon, Jan 11, 2010 at 11:21 AM, John R Pierce wrote: > Rudi Ahlers wrote: >> Hi all, >> >> does anyone know where I can download kernel-xen- 2.6.18-164.el5 for >> CentOS 5? I can't install it with yum, since yum has a much newer >> version already. I have searched google, but can't find a download >> link, only a lot of references to the kernel w.r.t problems. >> >> > > isn't that the stock 5.4 kernel? > http://mirror.centos.org/centos-5/5.4/os/x86_64/CentOS/ > > (replace x86_64 with i386 if needed) > > > ___ Nope, there's a newer kernel installed already. I need this particular older one for one of the XEN domU's on this server, and don't want to downgrade the running kernel and reboot the server -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] [OT ] Re: Laptop for CentOS-5
In case anyone is interested in the result of the advice and discussion that my query generated, I bought a Macintosh PowerBook on Saturday. My initial experience was very satisfactory. The strong points were the ease of set-up, an amazingly short start up time (even from a cold start), and a simply unbelievable battery life. The weak points including the magnetic coupled power supply--the d/c cable from the transformer to the laptop is simply too short. Even with the optional long a/c cable and plug the cable is just too short to avoid dislodging it frequently when adjusting ones sitting position. another 40 to 50 cm of cable length is required I think. Another weakness is a re-occurring problem with the AirPort wireless adapter. The Mac worked with my existing WPA2/TKIP shared secret mixed-mode wireless home lan out of the box (once the key was provided). When Internet connectivity was established I immediately updated the OS to 10.6.2. Once this completed I worked on the system for a few hours getting somewhat accustomed to the Apple way of doing things. Everything worked very well. The next day however, after again working with the system on the wireless network without problem for several hours, I performed an Apple software update. Immediately following this update the AirPort wireless network adapter began exhibiting poor performance with many dropped packets, resulting in poor response times, and frequent disconnections from the wireless network. I spent about seven hours tracking this problem down, resetting the PRAM and so-forth on the basis of instructions found on various blogs, FAQs and forums. Apparently this problem is fairly common although strangely absent from the official Apple FAQ, at least as far as I could see. Along the way I discovered that with OS-X 10.6 the PRAM no longer holds any network configuration setting so older how-to's which advise this are useless. In the end I followed a frequently encountered recommendation to purge: /Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist and immediately restarted the powerbook. This seemed to clear the problem, although by this time it was after midnight and I did not stay up to test it extensively. I also uncovered and issue with Firefox 3.5.7 and Mac Java. If one has a Java application active in any tab then switching tabs results in the java application window staying visible, although no longer responsive. The contents of the active tab are thereby obscured while those portions of the page that are not under the java window are displayed. Switching back to the tab containing the java app restores responsiveness to the application window. I could not find any thing on this from Google, although I am not sure how one describes this circumstance to a search engine. I am really not enthralled with the inability to cut and paste from a Safari web page, or any desktop application for that matter, directly into a terminal window. This is a particular PAI for me as I often have to connect via ssh to remote sites and perform maintenance in vi. The inability to cut and paste is excruciating and I am investigating alternatives to mac terminal. This lack and the poor colour support in Termian.app is, to me, surprising functional omissions for a GUI orientated OS. This is a feature that I could even manage between MS-IE and cygwin's rxvt on MS-WinXP. Anyway, these minor points aside (although if the AirPort connectivity issue is not resolved then that will be a show-stopper) I seem to have been captured by the light side. We will have to see if I escape or become assimilated. -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@harte-lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
Rudi Ahlers wrote: > On Mon, Jan 11, 2010 at 11:21 AM, John R Pierce wrote: >> Rudi Ahlers wrote: >>> Hi all, >>> >>> does anyone know where I can download kernel-xen- 2.6.18-164.el5 for >>> CentOS 5? I can't install it with yum, since yum has a much newer >>> version already. I have searched google, but can't find a download >>> link, only a lot of references to the kernel w.r.t problems. >>> >>> >> >> isn't that the stock 5.4 kernel? >> http://mirror.centos.org/centos-5/5.4/os/x86_64/CentOS/ >> >> (replace x86_64 with i386 if needed) >> >> >> ___ > > > Nope, there's a newer kernel installed already. I need this particular > older one for one of the XEN domU's on this server, and don't want to > downgrade the running kernel and reboot the server so what? you can download the old kernel from John's link and do whatever you want with it. It's there... Did you click on the link he provided?? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On Mon, Jan 11, 2010 at 11:20 AM, Götz Reinicke - IT-Koordinator wrote: > Rudi Ahlers schrieb: >> Hi all, >> >> does anyone know where I can download kernel-xen- 2.6.18-164.el5 for >> CentOS 5? I can't install it with yum, since yum has a much newer >> version already. I have searched google, but can't find a download >> link, only a lot of references to the kernel w.r.t problems. >> > > ftp://zid-lux1.uibk.ac.at/pub/dist/centos/5/os/i386/CentOS/kernel-xen-2.6.18-164.el5.i686.rpm > > and > > ftp://zid-lux1.uibk.ac.at/pub/dist/centos/5/os/x86_64/CentOS/kernel-xen-2.6.18-164.el5.x86_64.rpm > > > Works for me. Regards. > > /Götz > > -- > Götz Reinicke > IT-Koordinator > Thanx Gotz, this link, like all the others that I found isn't working. Do you by any chance have the RPM somewhere that I can download from FTP? I'm looking for a x64 version, for CentOS 5.4 -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On 01/11/2010 03:17 PM, Rudi Ahlers wrote: > Nope, there's a newer kernel installed already. I need this particular > older one for one of the XEN domU's on this server, and don't want to > downgrade the running kernel and reboot the server man yum, look at the --showduplicates option. you can then use the output to have yum with specific versions eg: yum install - -- Karanbir Singh London, UK| http://www.karan.org/ | twitter.com/kbsingh ICQ: 2522219 | Yahoo IM: z00dax | Gtalk: z00dax GnuPG Key : http://www.karan.org/publickey.asc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Securing http authentication from brute force attacks
We have several web applications deployed under Apache that require a user id / password authentication. Some of these use htdigest and others use the application itself. Recently we have experienced several brute force attacks against some of these services which have been dealt with for the nonce by changes to iptables. However, I am not convinced that these changes are the answer. Therefore I have been looking at http protection and have run across a few independently provided modules for Apache http security, mod_security being one of them. I would like the opinion of other CentOS sysadmins who already have faced this same problem, with respect to the solutions available and those that they choose for themselves. Sincerely, -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@harte-lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Securing http authentication from brute force attacks
From: James B. Byrne > We have several web applications deployed under Apache that require > a user id / password authentication. Some of these use htdigest and > others use the application itself. > > Recently we have experienced several brute force attacks against > some of these services which have been dealt with for the nonce by > changes to iptables. However, I am not convinced that these changes > are the answer. > > Therefore I have been looking at http protection and have run across > a few independently provided modules for Apache http security, > mod_security being one of them. > > I would like the opinion of other CentOS sysadmins who already have > faced this same problem, with respect to the solutions available and > those that they choose for themselves. I did not test it but maybe check: http://www.zdziarski.com/projects/mod_evasive/ JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Securing http authentication from brute force attacks
On Mon, Jan 11, 2010 at 10:59 AM, James B. Byrne wrote: > We have several web applications deployed under Apache that require > a user id / password authentication. Some of these use htdigest and > others use the application itself. > > Recently we have experienced several brute force attacks against > some of these services which have been dealt with for the nonce by > changes to iptables. However, I am not convinced that these changes > are the answer. > > Therefore I have been looking at http protection and have run across > a few independently provided modules for Apache http security, > mod_security being one of them. > > I would like the opinion of other CentOS sysadmins who already have > faced this same problem, with respect to the solutions available and > those that they choose for themselves. You can configure fail2ban to help deal with this, along with ssh protection. I'm also heavily in favor of mod_security when it comes to apache protection. -- During times of universal deceit, telling the truth becomes a revolutionary act. George Orwell ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
Rudi Ahlers wrote on Mon, 11 Jan 2010 17:17:14 +0200: > and don't want to > downgrade the running kernel and reboot the server you have to reboot the VM (I assume you mean this by "server"?), anyway, for a new kernel. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
At Mon, 11 Jan 2010 18:01:24 +0100 CentOS mailing list wrote: > > Rudi Ahlers wrote on Mon, 11 Jan 2010 17:17:14 +0200: > > > and don't want to > > downgrade the running kernel and reboot the server > > you have to reboot the VM (I assume you mean this by "server"?), anyway, > for a new kernel. I think the OP does not want to reboot xen itself and the dom0 VM or any of the virtual machines, *except* the one with the 'bad' kernel. > > Kai > -- Robert Heller -- 978-544-6933 Deepwoods Software-- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
Pasi Kärkkäinen wrote: > It seems X4500 (not available anymore) had Marvell SATA controllers, that > are not supported with RHEL5. > And those marvell controllers caused major grief for Sun, especially when Solaris added support for NCQ somewhere in there. under heavy IO workloads, the controllers would just hang. Some nasty bugs. Driver software workarounds caused a big performance hit. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On Mon, Jan 11, 2010 at 7:07 PM, Robert Heller wrote: > At Mon, 11 Jan 2010 18:01:24 +0100 CentOS mailing list > wrote: > >> >> Rudi Ahlers wrote on Mon, 11 Jan 2010 17:17:14 +0200: >> >> > and don't want to >> > downgrade the running kernel and reboot the server >> >> you have to reboot the VM (I assume you mean this by "server"?), anyway, >> for a new kernel. > > I think the OP does not want to reboot xen itself and the dom0 VM or > any of the virtual machines, *except* the one with the 'bad' kernel. > >> >> Kai >> > > -- Yup, that's exactly what I want todo :) But I can't find this kernel's RPM on the internet to install it on the dom0 host -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ntpd appears to not be able to query ntp servers automatically?
Hello all, After reboot, one of my servers running CentOS5 no longer keeps its clock synced automatically. ntpd is running and I don't see anything weird being logged. If I kick off ntpd with 'ntpd -q', it will sync the clock. However, if I just rely on ntpd started with 'service ntpd start', syncing does not happen. I previously had: # Undisciplined Local Clock. This is a fake driver intended for backup # and when no outside source of synchronized time is available. server 127.127.1.0 # local clock fudge 127.127.1.0 stratum 10 and noticed that ntpd would fail down to using the undisciplined local clock if I checked with ntpstat. I commented those out, and now ntpstat simply says: unsynchronised time server re-starting polling server every 64 Any idea as to why ntpd -q will sync, but otherwise the clock will not stay in sync even when the local clock drifts by several minutes? It worked fine prior to reboot. Thanks, Ryan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On Wed, Jan 6, 2010 at 10:35 PM, Boris Epstein wrote: > some storage servers to run under Linux - most likely CentOS. The storage > volume would be in the range specified: 8-15 TB. Any recommendations as far > as hardware? I'm kind of partial to Areca raid controllers, you can get up to 24 ports, so that can be as much as 20 TB (that's real world terabytes, not hardware manufacturer's) in a raid 6 with hot-spare using 1000 GB drives. BR Bent ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On 1/11/2010 11:38 AM, John R Pierce wrote: > Pasi Kärkkäinen wrote: >> It seems X4500 (not available anymore) had Marvell SATA controllers, that >> are not supported with RHEL5. >> > > And those marvell controllers caused major grief for Sun, especially > when Solaris added support for NCQ somewhere in there. under heavy IO > workloads, the controllers would just hang. Some nasty bugs. Driver > software workarounds caused a big performance hit. Is that a different chipset than http://www.newegg.com/Product/Product.aspx?Item=N82E16815121009 uses? I replaced a Paradise and Adaptec card with one of these (or maybe the PCI-E version) and Centos recognized it and worked better than with the two different cards. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Setup multiple bridges for use with KVM
> > I'm using the same setup for multiple bridges for Xen, no problem. But I > use static IP addresses. You *have* to use IP numbers from different > subnets. > > I've setup just the IPADDR= and NETMASK= to have different static IPs in different subnets and changed to the BOOTPROTO=static in each of the ifcfg-brX scripts. This hasn't fixed my issue. Perhaps it's because of the way I'm trying to use it (or I don't get it). Does each VM that is using a specific bridged device need to have the same IP subnet as that of the static brX address? What I am trying to accomplish here is this: Router (192.168.7.1) -> eth0/br0 (10.1.10.1) -> VM01 (with internal vr0 and vr1 attached to br0 and br1 and a bridged IP of 192.168.7.253, running Untangle in bridge mode) VM01 > eth1/br1 ---> local switch -> eth2/br2 --> other running VMs. Thinking that the internal bridging done by the Untangle VM might have caused an issue... I setup just a stock Win Server 2003 install with a single ethernet device attached to br0 and set a static IP in the 192.168.7.X range (in Win 2k3 VM). The untangle VM is shutdown. I still can't ping 192.168.7.1 from the Win2k3 VM. Thanks, Jacob ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5 [SOLVED]
On Mon, Jan 11, 2010 at 5:49 PM, Karanbir Singh wrote: > On 01/11/2010 03:17 PM, Rudi Ahlers wrote: >> Nope, there's a newer kernel installed already. I need this particular >> older one for one of the XEN domU's on this server, and don't want to >> downgrade the running kernel and reboot the server > > man yum, > > look at the --showduplicates option. you can then use the output to have > yum with specific versions eg: > > yum install - > > -- > Karanbir Singh Thanx, this is exactly what I needed :) And now I learned something new as well -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [OT ] Re: Laptop for CentOS-5
> In case anyone is interested in the result of the advice and > discussion that my query generated, I bought a Macintosh PowerBook > on Saturday. My understanding is that PowerBook are (were) based on PPC architecture and are not sold by Apple anymore. Since you talk about Mac OS 10.6 (aka. Snow Leopard) I assume that you bought an intel-based one, so I guess this is either a MacBook or a MacBook Pro. (I still have an old PowerBook 12'' running Fedora 11 PPC, that I don't really use anymore but we went through a lot of weird countries and experiences together, so I keep it and let my 1.5 year son play with it from time to time... Sorry for the sentimental OT) > Anyway, these minor points aside (although if the AirPort > connectivity issue is not resolved then that will be a show-stopper) > I seem to have been captured by the light side. We will have to see > if I escape or become assimilated. If I may give you an advice: before you have configured to much on the Mac OS side, please repartition it and leave a 20/50 GB space on it (at the end) This is very very manageable to use Linux on these computers, Fedora and even CentOS (see my previous posts, and our discussion off-list), but a sticky point is the repartioning. Very often the simplest way is to reinstall MacOS (there are other ways though). So even if you don't plan to use Linux on it on the short time, just leave some space for it now on the harddrive. As long as you have done that, Linux installation is painless (using rEFIT) and safe for your MacOS install. (and the terminal is quite good on Linux...) Feel free to contact me offlist or open a new thread if I can help you with that (as I told you before, this is on my TODO list to add documentation regarding Mactels on the CentOS wiki) My 20$ (at least) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On 1/11/2010 1:33 PM, Les Mikesell wrote: > On 1/11/2010 11:38 AM, John R Pierce wrote: > >> Pasi Kärkkäinen wrote: >> >>> It seems X4500 (not available anymore) had Marvell SATA controllers, that >>> are not supported with RHEL5. >>> >>> >> And those marvell controllers caused major grief for Sun, especially >> when Solaris added support for NCQ somewhere in there. under heavy IO >> workloads, the controllers would just hang. Some nasty bugs. Driver >> software workarounds caused a big performance hit. >> > Is that a different chipset than > http://www.newegg.com/Product/Product.aspx?Item=N82E16815121009 uses? I > replaced a Paradise and Adaptec card with one of these (or maybe the > PCI-E version) and Centos recognized it and worked better than with the > two different cards. > > http://linuxmafia.com/faq/Hardware/sata.html#marvell it's fakeraid. I don't know if it's a different one than what was in there previously though..:) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On Mon, Jan 11, 2010 at 08:12:33PM +0200, Rudi Ahlers wrote: > On Mon, Jan 11, 2010 at 7:07 PM, Robert Heller wrote: > > At Mon, 11 Jan 2010 18:01:24 +0100 CentOS mailing list > > wrote: > > > >> > >> Rudi Ahlers wrote on Mon, 11 Jan 2010 17:17:14 +0200: > >> > >> > and don't want to > >> > downgrade the running kernel and reboot the server > >> > >> you have to reboot the VM (I assume you mean this by "server"?), anyway, > >> for a new kernel. > > > > I think the OP does not want to reboot xen itself and the dom0 VM or > > any of the virtual machines, *except* the one with the 'bad' kernel. > > > >> > >> Kai > >> > > > > -- > > Yup, that's exactly what I want todo :) But I can't find this kernel's > RPM on the internet to install it on the dom0 host > You don't have to install the kernel rpm to dom0/host. You can install the kernel only to domU, and use Xen pygrub to load the domU grub.conf and kernel+initrd from the guests filesystem. Are you really saying you can't find that kernel rpm? It's available from every CentOS (FTP) mirror. -- Pasi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [OT ] Re: Laptop for CentOS-5
On 1/11/2010 9:35 AM, James B. Byrne wrote: > > I also uncovered and issue with Firefox 3.5.7 and Mac Java. If one > has a Java application active in any tab then switching tabs results > in the java application window staying visible, although no longer > responsive. The contents of the active tab are thereby obscured > while those portions of the page that are not under the java window > are displayed. Switching back to the tab containing the java app > restores responsiveness to the application window. I've never liked browser tabs much so I tend to open everything in new windows - but FF 3.x should have a feature of being able to drag a tab out and have it become a window. Does doing that to the tab with the java app fix it? > I am really not enthralled with the inability to cut and paste from > a Safari web page, or any desktop application for that matter, > directly into a terminal window. This is a particular PAI for me as > I often have to connect via ssh to remote sites and perform > maintenance in vi. The inability to cut and paste is excruciating > and I am investigating alternatives to mac terminal. This lack and > the poor colour support in Termian.app is, to me, surprising > functional omissions for a GUI orientated OS. This is a feature > that I could even manage between MS-IE and cygwin's rxvt on > MS-WinXP. I'm using 10.5 and haven't found much of anything that won't cut/paste, but I use a mouse with the right button enabled and use the pop-up menus to do it (mostly because that is much less confusing when you jump around among windows/mac/linux). This should even work between local apps and virtualbox, NX, remote windows desktop, vnc, etc. > Anyway, these minor points aside (although if the AirPort > connectivity issue is not resolved then that will be a show-stopper) > I seem to have been captured by the light side. We will have to see > if I escape or become assimilated. If you only want to be partly assimilated you can run virtualbox or VMware fusion with other OS guests, use the NX client from www.nomachine.com with freenx/Centos on another machine, or the remote windows desktop client with windows on another machine. But, Apple has a way of timing their OS and ilife updates on a different cycle than hardware releases so don't be surprised if you have to buy those over again if you really are assimilated. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] looking for kernel-xen- 2.6.18-164.el5
On Mon, Jan 11, 2010 at 9:42 PM, Pasi Kärkkäinen wrote: >> > > You don't have to install the kernel rpm to dom0/host. > > You can install the kernel only to domU, and use Xen pygrub to load the > domU grub.conf and kernel+initrd from the guests filesystem. > > Are you really saying you can't find that kernel rpm? It's available > from every CentOS (FTP) mirror. > > -- Pasi > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > The application, fluidVM, that I'm using relies on the kernel to be installed on the host dom0 in order for the domU to work - i.e. it doesn't use pygub. But I got it working with "yum search kernel-xen --showduplicates" -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Help finding the X man page.
I would like to tweak the way my gnome-terminals are coming up and the `man gnome-terminal` refers me to the "X" man page (specifically for --geometry). Although I have found what is probably an adequate version on line[1] (from the x.org folks no less), I would like to have the man page from CentOS ON my system. my yum foo is not doing so well... $ yum whatprovides \*/man7\*/X\*gz Loaded plugins: fastestmirror, security No Matches found and $ yum whatprovides \*/man\*/X\*gz ... is a bit overwhelming and did not seem to have what I was looking for. further gentle clue-by-four available? [1] http://www.x.org/archive/X11R6.8.1/doc/X.7.html -- Todd Denniston Crane Division, Naval Surface Warfare Center (NSWC Crane) Harnessing the Power of Technology for the Warfighter ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Help finding the X man page.
Todd Denniston wrote: > I would like to tweak the way my gnome-terminals are coming up and the `man > gnome-terminal` refers > me to the "X" man page (specifically for --geometry). > Although I have found what is probably an adequate version on line[1] (from > the x.org folks no > less), I would like to have the man page from CentOS ON my system. > > my yum foo is not doing so well... > $ yum whatprovides \*/man7\*/X\*gz > Loaded plugins: fastestmirror, security > No Matches found > > and > $ yum whatprovides \*/man\*/X\*gz > ... is a bit overwhelming and did not seem to have what I was looking for. > > > further gentle clue-by-four available? > > [1] http://www.x.org/archive/X11R6.8.1/doc/X.7.html > man Xorg ? a few others visible here: [nthie...@localhost ~]$ rpm -q xorg-x11-server-Xorg -l | grep man /usr/share/man/man1/Xorg.1x.gz /usr/share/man/man1/Xserver.1x.gz /usr/share/man/man1/cvt.1.gz /usr/share/man/man1/gtf.1x.gz /usr/share/man/man1/scanpci.1x.gz /usr/share/man/man4/fbdevhw.4.gz /usr/share/man/man5/xorg.conf.5x.gz ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Horde - epel vs. extras?
When updating a centos 5.x box with the horde package, should the extras or epel version win? -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On 01/11/2010 09:42 AM, Rainer Duffner wrote: > Am 11.01.2010 15:26, schrieb Pasi Kärkkäinen: >> X4540 uses LSI SATA controllers, that are supported. >> > > > Indeed: > > http://www.sun.com/servers/x64/x4540/os.jsp > > 5.3+ is needed. > > Of course, for a true Solaris-admin, this would be a big waste. > ;-) > But if you have an application that runs on Linux (but not Solaris) or > runs much more stable on Linux, this is a viable option. CentOS 5.4 x86_64 works fine on the x4540s, I've installed it myself and didn't have to do anything special to see and use all of the disks. In my testing, the IO was faster and the storage easier to administer with when using Solaris and ZFS rather than with CentOS and software raid. That kind of box is just made for ZFS. Tom ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Horde - epel vs. extras?
Les Mikesell wrote: When updating a centos 5.x box with the horde package, should the extras or epel version win? Les, I have extras in priority over epel and horde 4.3.4 seems to work fine HTH <>___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Vmware server 2.0.2 and Centos 5.4
On Sun, Jan 10, 2010 at 7:02 AM, Tom Bishop wrote: > I know of the issue using vmware server 2.0.2 and centos 5.4, but is their > any reason not to use the .rpm install of for centos? I have always used > the .tar file but this time used the rpm and it appeared to install and not > crash. I went ahead and did the glib correction but I was wondering if > using the rpm was not the rght thing to do, Thanks. I personally do not see anything wrong with using the rpm to install VMware Server. Akemi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
Karanbir Singh wrote: > On 01/08/2010 05:28 PM, R-Elists wrote: >> what is wrong or what problems are you referring to with cciss please ? >> > > problems mostly centered around management and performance issues. the > world is littered with stores of cciss fail > > Really? Man, I have been given this spanking new HP DL370 G6 and running Centos 5.4 on it... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
Bent Terp wrote: > On Wed, Jan 6, 2010 at 10:35 PM, Boris Epstein wrote: >> some storage servers to run under Linux - most likely CentOS. The storage >> volume would be in the range specified: 8-15 TB. Any recommendations as far >> as hardware? > > I'm kind of partial to Areca raid controllers, you can get up to 24 > ports, so that can be as much as 20 TB (that's real world terabytes, > not hardware manufacturer's) in a raid 6 with hot-spare using 1000 GB > drives. > I see that the Areca driver has finally made it into the mainline Linux kernel. But I wonder how things have improved from this particular case. http://notemagnet.blogspot.com/2008/08/linux-disk-failures-areca-is-not-so.html Any comments? With 3ware lately not looking so good from comments I have heard on the list over the past few years performance wise, I wonder how Adaptec and Areca look now? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] multipath
Hi. Somehow I do not see any out put using multipath -l or multipath -ll . But I can see using dry run ie multipath -d. Also I do not see /dev/dm-* It was there before. How do I re claim it. Thanks! Paras. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] multipath
Paras pradhan wrote: > Hi. > > Somehow I do not see any out put using multipath -l or multipath -ll . But I > can see using dry run ie multipath -d. > > Also I do not see /dev/dm-* > > It was there before. How do I re claim it. Are the modules loaded? [r...@dc1-mysql001a:~]# lsmod | grep dm dm_zero35265 0 dm_mirror 60617 0 dm_round_robin 36801 1 dm_multipath 52945 2 dm_round_robin dm_mod 99737 17 dm_zero,dm_mirror,dm_multipath [r...@dc1-mysql001a:~]# multipath -l 350002ac0006a0714dm-1 3PARdata,VV [size=1.0T][features=0][hwhandler=0] \_ round-robin 0 [prio=0][active] \_ 1:0:0:3 sdc 8:32 [active][undef] \_ 1:0:1:3 sde 8:64 [active][undef] \_ 2:0:0:3 sdg 8:96 [active][undef] \_ 2:0:1:3 sdi 8:128 [active][undef] 350002ac000790714dm-0 3PARdata,VV [size=2.0T][features=0][hwhandler=0] \_ round-robin 0 [prio=0][active] \_ 1:0:0:2 sdb 8:16 [active][undef] \_ 1:0:1:2 sdd 8:48 [active][undef] \_ 2:0:0:2 sdf 8:80 [active][undef] \_ 2:0:1:2 sdh 8:112 [active][undef] nate ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Vmware server 2.0.2 and Centos 5.4
Thanks, rpms have made me lazy ;) On 1/11/10, Akemi Yagi wrote: > On Sun, Jan 10, 2010 at 7:02 AM, Tom Bishop wrote: >> I know of the issue using vmware server 2.0.2 and centos 5.4, but is their >> any reason not to use the .rpm install of for centos? I have always used >> the .tar file but this time used the rpm and it appeared to install and >> not >> crash. I went ahead and did the glib correction but I was wondering if >> using the rpm was not the rght thing to do, Thanks. > > I personally do not see anything wrong with using the rpm to install > VMware Server. > > Akemi > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] multipath
Yes every thing's loaded. Here is the output: [r...@cvprd1 ~]# lsmod | grep dm dm_round_robin 36801 0 rdma_cm68565 1 ib_iser ib_cm 73449 1 rdma_cm iw_cm 43465 1 rdma_cm ib_sa 75209 2 rdma_cm,ib_cm ib_core 105157 6 ib_iser,rdma_cm,ib_cm,iw_cm,ib_sa,ib_mad ib_addr41929 1 rdma_cm dm_multipath 56153 1 dm_round_robin scsi_dh41665 1 dm_multipath dm_raid45 99401 0 dm_message 36289 1 dm_raid45 dm_region_hash 46273 1 dm_raid45 dm_mem_cache 39489 1 dm_raid45 dm_snapshot52105 0 dm_zero35265 0 dm_mirror 54737 0 dm_log 44993 3 dm_raid45,dm_region_hash,dm_mirror dm_mod101521 11 dm_multipath,dm_raid45,dm_snapshot,dm_zero,dm_mirror,dm_log Thanks Paras. On Mon, Jan 11, 2010 at 6:33 PM, nate wrote: > Paras pradhan wrote: > > Hi. > > > > Somehow I do not see any out put using multipath -l or multipath -ll . > But I > > can see using dry run ie multipath -d. > > > > Also I do not see /dev/dm-* > > > > It was there before. How do I re claim it. > > Are the modules loaded? > > [r...@dc1-mysql001a:~]# lsmod | grep dm > dm_zero35265 0 > dm_mirror 60617 0 > dm_round_robin 36801 1 > dm_multipath 52945 2 dm_round_robin > dm_mod 99737 17 dm_zero,dm_mirror,dm_multipath > [r...@dc1-mysql001a:~]# multipath -l > 350002ac0006a0714dm-1 3PARdata,VV > [size=1.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=0][active] > \_ 1:0:0:3 sdc 8:32 [active][undef] > \_ 1:0:1:3 sde 8:64 [active][undef] > \_ 2:0:0:3 sdg 8:96 [active][undef] > \_ 2:0:1:3 sdi 8:128 [active][undef] > 350002ac000790714dm-0 3PARdata,VV > [size=2.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=0][active] > \_ 1:0:0:2 sdb 8:16 [active][undef] > \_ 1:0:1:2 sdd 8:48 [active][undef] > \_ 2:0:0:2 sdf 8:80 [active][undef] > \_ 2:0:1:2 sdh 8:112 [active][undef] > > > > nate > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
On Tue, Jan 12, 2010 at 08:07:17AM +0800, Christopher Chan wrote: > > I see that the Areca driver has finally made it into the mainline Linux > kernel. But I wonder how things have improved from this particular case. > > http://notemagnet.blogspot.com/2008/08/linux-disk-failures-areca-is-not-so.html I can't speak to this, except to point out that it is almost 18 months old, which is quite a long time in kernel development space. With the right incantation, one can call smartctl directly on a drive connected to a 3ware controller, no matter what kind of array it is in. (I believe you can even call it on a drive assigned as a hot spare.) > Any comments? With 3ware lately not looking so good from comments I have > heard on the list over the past few years performance wise, I wonder how > Adaptec and Areca look now? I've run an exclusively 3ware shop since I ditched my last aacraid machines a few years back. But with all their issues, I am definitely considering trying Areca on my next server that's not planned to be immediately mission-critical. (I wouldn't switch back to Adaptec unless I knew their interface tools, and especially their cli, had improved dramatically; the aaccli/afacli interfaces were simply atrocious.) --keith -- kkel...@speakeasy.net pgpY0toMUNyqK.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 8-15 TB storage: any recommendations?
Keith Keller wrote: > On Tue, Jan 12, 2010 at 08:07:17AM +0800, Christopher Chan wrote: >> I see that the Areca driver has finally made it into the mainline Linux >> kernel. But I wonder how things have improved from this particular case. >> >> http://notemagnet.blogspot.com/2008/08/linux-disk-failures-areca-is-not-so.html > > I can't speak to this, except to point out that it is almost 18 months > old, which is quite a long time in kernel development space. Which is why I am asking. > > With the right incantation, one can call smartctl directly on a drive > connected to a 3ware controller, no matter what kind of array it is in. > (I believe you can even call it on a drive assigned as a hot spare.) Which is why I specifically said 'performance wise' as respects 3ware. I don't remember anything bad about 3ware stability wise or monitoring wise. > >> Any comments? With 3ware lately not looking so good from comments I have >> heard on the list over the past few years performance wise, I wonder how >> Adaptec and Areca look now? > > I've run an exclusively 3ware shop since I ditched my last aacraid > machines a few years back. But with all their issues, I am definitely > considering trying Areca on my next server that's not planned to be > immediately mission-critical. (I wouldn't switch back to Adaptec unless > I knew their interface tools, and especially their cli, had improved > dramatically; the aaccli/afacli interfaces were simply atrocious.) > What issues are you having with 3ware? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] rsync optimization
We are now doing on the work to reduce the amount of images that would be compared before rsync many of which maybe aready exist on the receiving end. After we do a successful rsync, we log the images transfered, and we use another script to delete them on the send end. And that turns out to be helpful in this case. 2010-01-12 xufengnju 发件人： Kwan Lowe 发送时间： 2010-01-11 21:14:58 收件人： CentOS mailing list 抄送： 主题： Re: [CentOS] rsync optimization On Mon, Jan 11, 2010 at 4:36 AM, xufengnju wrote: > Hi, > > We currently have upload servers in one data center(A), and users upload the > images there. We have storage server in another data center(B). When users > upload many images at the same time, we face sync difficulties. > > On B, we use rsync in server mode, with authentication. > On A, we use `rsync -azpogtRv --safe-links 1/ > rsync://u...@serverb/img/ --password-file=/var/www/r.passwd ` > > Both ends run centos 5.3 X86_64. > > Any suggestions to optimize rsync in this case? You can add the following options: --ignore-times --delay-updates The first will speed up the comparison. The second can prevent some errors related to synchronization on the receiving side. BTW, have you considered using a DRBD volume with GFS? This might work better than rsync, depending on your configuration. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Raising ftp priority?
On Mon, Jan 11, 2010 at 7:05 AM, John R Pierce wrote: > hadi motamedi wrote: > > Thank you for your reply . So the only way is cloning his hard disk . > > Am I right? > > I'd consider using dump to dump each ext3fs file system, then use > 'restore' to restore each of these dumps to appropriately sized file > systems for the new target system. the source system should be shut > down to single user mode, and all file systems umounted except / when > you do this. you can pipe the output of the dump to a ssh command > to write the dump to drive on a remote system. for instance... > ># dump -0uv /dev/sda2 | ssh r...@target -c "restore -rf - /mnt/var" > > where /dev/sda2 is the /var file system on the local system, and > /mnt/var is the temporary home of the new disk, freshly formatted, with > the new /usr mounted as /mnt/usr > > of course, you repeat this for each file system on the source system. > See the man pages for dump and restore. Don't forget to install the > grub boot loader on this new disk, then move it to the target hardware, > which presumably is near identical to the original system. > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > Thank you for your reply . Can you please help me on the real scenario , as the followings? My local(source) CentOS server @192.168.0.2 My remote CentOS client @192.168.0.70 On the local system : #df -m Filesystem Mounted on /dev/hda3 / /dev/hda1 /boot tmpfs /dev/shm On the local system , issue the followings to make client and server as identical : #dump -0uvf - /dev/hda3 | ssh r...@192.168.0.70 -c "restore -rf - /" #dump -0uvf - /dev/hda1 | ssh r...@192.168.0.70 -c "restore -rf - /boot" #dump -0uvf - /dev/shm | ssh r...@192.168.0.70 -c "restore -rf - /tmpfs" Can you please confirm if my understanding is right? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] digikam and mp3 sound on RHEL
Hi All; after years of running free Linux distros I've finally come to a place where I must have solid stability for my work laptop so I've purchased RHEL Workstation. I like it well enough - however I'd like to install digikam and get my system to play mp3's. I'm thinking I could get both of these from a centos repository. What do you'all think? If so, could someone point me to the correct repo(s) and the packages I'd need for playing mp3's? Thanks in advance ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] digikam and mp3 sound on RHEL
Quoting Kevin Kempter : > Hi All; > > after years of running free Linux distros I've finally come to a > place where I > must have solid stability for my work laptop so I've purchased RHEL > Workstation. > > I like it well enough - however I'd like to install digikam and get my system > to play mp3's. I'm thinking I could get both of these from a centos > repository. What do you'all think? > > If so, could someone point me to the correct repo(s) and the > packages I'd need > for playing mp3's? http://wiki.centos.org/FAQ/General#head-a3f995090c5d170e4738c162fc126524ef7a62c4 -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
