Re: [CentOS] 2 servers cluster
Hi, the servers will be on the same subnet. httpd services...You stated that you wrote your own solution. I am curious if it is possible to be implemented using CentOS clustering tools... thnx, On Sat, Jun 27, 2009 at 8:09 AM, Neil Aggarwal wrote: > Do you want the servers on the same subnet or different > subnets? > Do you want them geographically separated? > What services will the servers run? > Httpd, database, etc.? > > There is a project called Linux Virtual Server: > http://www.linuxvirtualserver.org/ > that might be interesting for you to take a look at. > > Also, we needed something that would allow us to > have an e-commerce site that used servers in two > separate geographic data rooms. We wanted both > databases to be live allow the system to run > even if one datacenter was unavailable. The > solutions from Oracle, etc. were too expensive > so we wrote our own. We could adapt that to your > project if you need. > >Neil > > -- > Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com > Eliminate junk email and reclaim your inbox. > Visit http://www.spammilter.com for details. > > > > > > From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On > Behalf > Of fmb fmb > Sent: Friday, June 26, 2009 10:58 PM > To: centos@centos.org > Subject: [CentOS] 2 servers cluster > > > Hi, > > I am thinking of setting up two servers in load balance mode. I would > really > appreciate your suggestions and hints... > > > thnx, > > > ___ > 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] 2 servers cluster
There might be a way to do it, but I have not explored that yet. You may call me to discuss it. My number is in my signature below. Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Your e-commerce site can be geographically redundant and available even if failure occurs. Ask me about the GRed database system. _ From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of fmb fmb Sent: Saturday, June 27, 2009 3:36 AM To: CentOS mailing list Subject: Re: [CentOS] 2 servers cluster Hi, the servers will be on the same subnet. httpd services...You stated that you wrote your own solution. I am curious if it is possible to be implemented using CentOS clustering tools... thnx, On Sat, Jun 27, 2009 at 8:09 AM, Neil Aggarwal wrote: Do you want the servers on the same subnet or different subnets? Do you want them geographically separated? What services will the servers run? Httpd, database, etc.? There is a project called Linux Virtual Server: http://www.linuxvirtualserver.org/ that might be interesting for you to take a look at. Also, we needed something that would allow us to have an e-commerce site that used servers in two separate geographic data rooms. We wanted both databases to be live allow the system to run even if one datacenter was unavailable. The solutions from Oracle, etc. were too expensive so we wrote our own. We could adapt that to your project if you need. Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Eliminate junk email and reclaim your inbox. Visit http://www.spammilter.com for details. From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of fmb fmb Sent: Friday, June 26, 2009 10:58 PM To: centos@centos.org Subject: [CentOS] 2 servers cluster Hi, I am thinking of setting up two servers in load balance mode. I would really appreciate your suggestions and hints... thnx, ___ 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] 2 servers cluster
CentOS has the redhat piranha packages available for install. Piranha is a repackaging of the linux virtual server software, along with a web-based front-end. You can find information about that in the CentOS docs and also by googling for "redhat piranha". On Fri, Jun 26, 2009 at 11:57 PM, fmb fmb wrote: > Hi, > > I am thinking of setting up two servers in load balance mode. I would really > appreciate your suggestions and hints... > > > thnx, > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 servers cluster
Thnx Brian. This is the first thing that I will do... On Sat, Jun 27, 2009 at 5:29 PM, Brian Mathis wrote: > CentOS has the redhat piranha packages available for install. Piranha > is a repackaging of the linux virtual server software, along with a > web-based front-end. You can find information about that in the > CentOS docs and also by googling for "redhat piranha". > > > On Fri, Jun 26, 2009 at 11:57 PM, fmb fmb wrote: > > Hi, > > > > I am thinking of setting up two servers in load balance mode. I would > really > > appreciate your suggestions and hints... > > > > > > thnx, > > > ___ > 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
[CentOS] server is always getting hacked
WE have a centos 5.3 install, and our server is keep getting hacked. We see load averages of 500+ and see people from all over the world logging into our server (used last). Is there a good place to start to avoid these kinds of things? For example, here is what I already did. Open up sshd port only setup iptables to only accept port 80 and 22 No FTP No other ports are allowed according to IP Tables. I am not sure what else measures I can take. Can someone please assist? TIA ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] server is always getting hacked
Mag Gam wrote: > WE have a centos 5.3 install, and our server is keep getting hacked. > We see load averages of 500+ and see people from all over the world > logging into our server (used last). > > what protocols are they logging on via? what accounts? have you changed all the passwords and so forth, run a rootkit hunter like rkhunter to check for common rootkits and other incursions, and so forth? > Is there a good place to start to avoid these kinds of things? > > For example, here is what I already did. > > Open up sshd port only > setup iptables to only accept port 80 and 22 > No FTP > No other ports are allowed according to IP Tables. > what sort of website is running on port 80? if its hosting any common PHP or other applications check for known exploits in those... almost every major and minor PHP package, common perl CGI, etc, has had exploits... things like phpbb get new exploits every week and need frequent updating. at this point, if your system has been hacked this badly, I would take it offline, clean install it with the minimum packages to support your applications, fully patch it, and this time making sure you leave selinux fully enabled, and then reconfigure and redeploy your web applications. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 5.3 and NTFS
Aa, I'm pulling out my hair over here! I have an external USB drive which I had at work, connected just fine to my CentOS 5.3 box. I recall there was some jiggery-pokery involved, but do not recall just what. So now I'm on my wife's freshly installed CentOS 5.3 laptop trying to get it going, and I keep getting errors about FATAL: Module fuse not found. I saw this message from the May archives : http://lists.rpmforge.net/pipermail/users/2009-May/002345.html and this as well http://www.johnson.homelinux.net/mywiki/NTFS but no luck! [r...@localhost ~]# rpm -qa | grep fuse dkms-fuse-2.7.4-1.nodist.rf fuse-ntfs-3g-2009.4.4-2.el5.rf fuse-2.7.4-1.el5.rf [r...@localhost ~]# rpm -qa | grep ntfs ntfsprogs-1.13.1-6.el5 ntfsprogs-gnomevfs-1.13.1-6.el5 fuse-ntfs-3g-2009.4.4-2.el5.rf [r...@localhost ~]# rpm -qa | grep dkms dkms-2.0.20.4-1.el5.rf dkms-fuse-2.7.4-1.nodist.rf Can someone answer me this? This "fuse module" ... the one that I'm supposed to be able to add with "modprobe fuse". What RPM provides it? And what file should I be looking for to confirm that it is there? Oh, and just to show that the drive does show up at least : [r...@localhost ~]# fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 13 104391 83 Linux /dev/sda2 14 19457 156183930 8e Linux LVM Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 121601 9767600017 HPFS/NTFS thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
On Sat, Jun 27, 2009 at 5:40 PM, Alan McKay wrote: > Aa, I'm pulling out my hair over here! > > I have an external USB drive which I had at work, connected just fine > to my CentOS 5.3 box. I recall there was some jiggery-pokery > involved, but do not recall just what. > > So now I'm on my wife's freshly installed CentOS 5.3 laptop trying to > get it going, and I keep getting errors about > > FATAL: Module fuse not found. The fuse module is built by dkms. Make sure you have the kernel devel package that *matches* your running kernel. What is the output of: uname -mr and rpm -qa kernel\* | sort Akemi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
> The fuse module is built by dkms. Make sure you have the kernel devel > package that *matches* your running kernel. What is the output of: > > uname -mr > > and > > rpm -qa kernel\* | sort [r...@localhost ~]# uname -mr 2.6.18-128.el5 i686 [r...@localhost ~]# rpm -qa kernel\* | sort kernel-2.6.18-128.el5 kernel-devel-2.6.18-128.1.14.el5 kernel-headers-2.6.18-128.1.14.el5 OK, what next? -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
On Sat, Jun 27, 2009 at 6:05 PM, Alan McKay wrote: >> The fuse module is built by dkms. Make sure you have the kernel devel >> package that *matches* your running kernel. What is the output of: >> >> uname -mr >> >> and >> >> rpm -qa kernel\* | sort > > [r...@localhost ~]# uname -mr > 2.6.18-128.el5 i686 > > [r...@localhost ~]# rpm -qa kernel\* | sort > kernel-2.6.18-128.el5 > kernel-devel-2.6.18-128.1.14.el5 > kernel-headers-2.6.18-128.1.14.el5 > > OK, what next? Can you see that your kernel-devel (2.6.18-128.1.14) is newer than your running kernel (2.6.18-128) ? I strongly suggest that you run 'yum update' and get the latest kernel and reboot. If, for some reason, you must stay with that (obsolete) kernel, you'd have to install the matching (obsolete) kernel-devel. Also, the NTFS reference for CentOS users can be found at: http://wiki.centos.org/TipsAndTricks/NTFS Hope this helps, Akemi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
> Can you see that your kernel-devel (2.6.18-128.1.14) is newer than > your running kernel (2.6.18-128) ? No, that was not obvious to me > I strongly suggest that you run 'yum update' and get the latest kernel > and reboot. OK, will do. thanks -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
On Sat, 27 Jun 2009, Alan McKay wrote: The fuse module is built by dkms. Make sure you have the kernel devel package that *matches* your running kernel. What is the output of: uname -mr and rpm -qa kernel\* | sort [r...@localhost ~]# uname -mr 2.6.18-128.el5 i686 [r...@localhost ~]# rpm -qa kernel\* | sort kernel-2.6.18-128.el5 kernel-devel-2.6.18-128.1.14.el5 kernel-headers-2.6.18-128.1.14.el5 OK, what next? Make sure your kernel and your kernel-devel versions match: 2.6.18-128.el5 and 2.6.18-128.1.14.el4 are not the same version. You can have more than one kernel and more than one kernel-devel package installed at the same time. But what is far the easiest solution is to head over to the elrepo repository at: http://elrepo.org/linux/elrepo/el5/i386/RPMS/ and then download the package for your kernel: http://elrepo.org/linux/elrepo/el5/i386/RPMS/kmod-fuse-2.7.4-1.el5.elrepo.i686.rpm Install that by doing, eg. rpm -Uhv http://elrepo.org/linux/elrepo/el5/i386/RPMS/kmod-fuse-2.7.4-1.el5.elrepo.i686.rpm and all should be fine. No need for dkms, dkms-fuse, kernel-devel, kernel-headers or a compiler. I recommend it nowadays over any dkms packages. Good luck and please report back ! -- -- dag wieers, d...@centos.org, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors]___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
> But what is far the easiest solution is to head over to the elrepo > repository at: > Good luck and please report back ! Thanks again. Already started the yum update so if that does not take care of it then I will try that other stuff. Will let you know how it goes cheers, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 5.3 and NTFS
On Sun, 28 Jun 2009, Dag Wieers wrote: > No need for dkms, dkms-fuse, kernel-devel, kernel-headers or a > compiler. I recommend it nowadays over any dkms packages. > > Good luck and please report back ! I just noticed that my email client (alpine) was still configured to use the centos.org email-address for sending mail to centos mailing lists. This was by accident, I have now disabled that feature. Sorry for any confusion, -- -- dag wieers, d...@wieers.com, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] SOLVED: CentOS 5.3 and NTFS
Bingo! The yum update took care of it. Oddly enough, until I started my new job 2 months ago I'd always been in the habit of running 'yum -y update' first thing after installing Fedora or CentOS. But the product software we develop does not like that very much so I got out of the habit very quickly after blowing up a machine by doing that :-/ Fortunately it was not a production box. But I do recall actually that I'd done it on my desktop at one point shortly after starting. Thanks all! I'm going to probably re-install my own Vista box here at home with Centos 5.3 64 bit, so I'll try the other method on it. Um, maybe something for a whole new thread, but does CentOS support eSATA? My desktop at home here has a port for it, and the USB drive in question does eSATA as well. Makes it S much faster when connected to my box! -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
