Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Rajagopal Swaminathan
Thanks for the reply 2009/12/21 Juan Carlos Díaz Fernández : > Or maybe implementing dyndns if you can > This sounds very interesting and it seems GNUDIP is one such. but it seems too dated. it is possible for me to run a dyndns service on a static IP. but can you provide a bit more of gory deta

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Rajagopal Swaminathan
Greetings, On Mon, Dec 21, 2009 at 8:27 PM, Jake wrote: > > I think it really depends on the type of monitoring you'd like to do and the > type of tool you're trying to use now. For example, we use Nagios to monitor > our systems. With Nagios, you could use passive checks. This is where the > pro

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Rajagopal Swaminathan
Greetings, > > Perhaps ntop? > Gosh! answer for a person handling hundreds of servers and PB of data!!! I am blessed indeed. :) Yes I am right now trying to get my claws into it just few minutes back I yum-med it in to my system. saw some graphs... The key issue here is dynamic IP addresses In

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Sean Carolan
> I'm not sure what would cause that, but I'd use rsync over ssh instead of sftp > anyway - and use the -P option to permit restarting. If it were up to me, we'd take that route. The software the client is using is WinSCP which does have a restart feature, however it's not working for us. I'm wo

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Juan Carlos Díaz Fernández
Hello, 2009/12/22 Rajagopal Swaminathan > Thanks for the reply > > 2009/12/21 Juan Carlos Díaz Fernández >: > > Or maybe implementing dyndns if you can > > > > This sounds very interesting and it seems GNUDIP is one such. but it > seems too dated. > In the past I had a dyndns mounted using bi

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Kai Schaetzl
Sean Carolan wrote on Tue, 22 Dec 2009 03:08:53 -0600: > The software the client is > using is WinSCP which does have a restart feature, however it's not > working for us. Tell him to switch WinSCP to SCP mode. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: ht

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Rajagopal Swaminathan
Greetings, > 2009/12/22 Rajagopal Swaminathan again, >> Thanks for the reply >> > > In the past I had a dyndns mounted using bind + dhcpd. You can see an > example here: > > http://www.howtoforge.com/fedora_dynamic_dns The dhcp server is not under my control, far from it is from different ISP

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Sean Carolan
> Tell him to switch WinSCP to SCP mode. > > Kai Tried that, it still fails the same way. Here's the short list of what I've tried to troubleshoot this: Used SCP via the gui and command line Used SFTP via the gui and command line Ran yum update to bring all packages up to date Tried stock CentOS

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Juan Carlos Díaz Fernández
Hello, The dhcp server is not under my control, far from it is from different ISPs > Uh! Sorry, I was not thinking about it. > Also, you can use an external dyndns service like dyndns.org and ddclient to > update info. Is is possibile to run on'e own dyndns service? > Yes, I see the tool you m

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread JS
> -Original Message- > From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On > Behalf Of Sean Carolan > Sent: Tuesday, December 22, 2009 6:13 AM > To: CentOS mailing list > Subject: Re: [CentOS] SFTP - stalled - on large files > > > Tell him to switch WinSCP to SCP mode.

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Rajagopal Swaminathan
Greetings, On Mon, Dec 21, 2009 at 8:48 PM, Gabriel Rosca wrote: > I personal use zabbix ... On all the servers ( Windows, Linux ) with dynamic > IP I use dyndns ... > I just tried to configure, make install zabbix server and agent on a centos box But I seem to miss the front end URL mentioned

[CentOS] conga and "virsh nodeinfo"

2009-12-22 Thread Dirk H. Schulz
Hi folks, I have run into a confusing problem. My initial problem is: Conga does not offer "Add a virtual machine service". So I googled and found a RedHat advisory on that: http://rhn.redhat.com/errata/RHBA-2009-1623.html which points updates that should fix this. I checked on my cluster, but

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Kai Schaetzl
Sean Carolan wrote on Tue, 22 Dec 2009 05:12:52 -0600: > Here's the short list of > what I've tried to troubleshoot this: which means it doesn't only fail for your client from outside but also for you from within your network? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Inte

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread mark
Sean Carolan wrote: > At this point I don't know what else to try. I'm thinking that it's > either a problem with VMWare, or perhaps our load balancer that is > routing the packets back and forth. Hopefully one of the vendors will Load balancer... is that set up to maintain connections, or will

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Sean Carolan
> Just an idea or thought on it.  You never said what the file size was or did > you?  My idea is that is, there not a file size limitation on transfer to > and from the server?  I thought there was?  Check you vsftpd.conf out or > what ever ftp server your running for the size limitation.  Maybe s

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Sean Carolan
> Load balancer... is that set up to maintain connections, or will it, like > IBM's > WebSeal, go to whichever server is next/least used in the middle of a > connection? It's set to use "least connection" but there is only one server behind the virtual IP at the moment. I'm reasonably sure at t

Re: [CentOS] Monitoring Dynamic IPs using Some network monitoring tool

2009-12-22 Thread Les Mikesell
Rajagopal Swaminathan wrote: > > Alternatively, it there a possibility of installing some agent and > getting the MAC address of one of the server behind the router. First > a diagram > > central location (main monitoring -- Centos box0+monitoring server) > | > | > (Internet) > | > | > +--link1ad

[CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread ML
Hi All, Hi All, MySQL 5.0.77 on CentOS 5.4 MySQL is running, my Wordpress stuff is working, but I cannot connect to the server from my house. This server is in my house, however, but on a public IP, behind a firewall, etc. I checked my hardware firewall (a dedicated UnTangle system) and that

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread John Kienitz
UPDATE mysql.user SET Password=PASSWORD('mypassword') WHERE User='root'; GRANT ALL ON mysql.* to 'root'@'127.0.0.1'; GRANT ALL ON mysql.* TO 'root'@'localhost'; GRANT ALL ON mysql.* TO 'root'@'my home IP'; FLUSH PRIVILEGES; commit; and I still cannot connect. But the database starts and this cod

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Kwan Lowe
On Tue, Dec 22, 2009 at 9:34 AM, ML wrote: [snip] > > I checked my hardware firewall (a dedicated UnTangle system) and that is > successfully allowing the passage. I know this because the firewall shows: > > 2009-12-22 6:29:41 am passed :35606 :3306 > > I checked the firewall (system-config-secur

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Les Mikesell
ML wrote: > > MySQL 5.0.77 on CentOS 5.4 > > MySQL is running, my Wordpress stuff is working, but I cannot connect to the > server from my house. This server is in my house, however, but on a public > IP, behind a firewall, etc. > > I checked my hardware firewall (a dedicated UnTangle system) a

[CentOS] IPTABLES --hitcount maximum value

2009-12-22 Thread James B. Byrne
Is the maximum permitted value for --hitcount documented anywhere? I reliably get a iptables-restore error when I specify a hitcount value greater than 20 but I cannot find any mention of there being a maximum value. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread ML
Hi Les, >> MySQL is running, my Wordpress stuff is working, but I cannot connect to the >> server from my house. This server is in my house, however, but on a public >> IP, behind a firewall, etc. >> >> I checked my hardware firewall (a dedicated UnTangle system) and that is >> successfully al

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread ML
>> I checked the firewall (system-config-securitylevel-tui) on the server and >> that has 3306:tcp allowed. Sure: > netstat -tlnw [r...@indie ~]# netstat -tnlw Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State t

Re: [CentOS] IPTABLES --hitcount maximum value

2009-12-22 Thread Dirk H. Schulz
Hi, James B. Byrne schrieb: > Is the maximum permitted value for --hitcount documented anywhere? > I reliably get a iptables-restore error when I specify a hitcount > value greater than 20 That is a new "phenomenon" I also ran into. You now have to adjust memory values. I have added to my /etc

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread ML
Rick, > have you tried to telnet to port 3306 of the machine where the mysql > server is located, from your home machine? if so, what do you get? > If you're successful you'll get a connect bit that includes a string > that will show your mysql server version number. if you don't have > mysql acce

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Les Mikesell
ML wrote: > Hi Les, > >>> MySQL is running, my Wordpress stuff is working, but I cannot connect to >>> the server from my house. This server is in my house, however, but on a >>> public IP, behind a firewall, etc. >>> >>> I checked my hardware firewall (a dedicated UnTangle system) and that is

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Les Mikesell
ML wrote: > Rick, > >> have you tried to telnet to port 3306 of the machine where the mysql >> server is located, from your home machine? if so, what do you get? >> If you're successful you'll get a connect bit that includes a string >> that will show your mysql server version number. if you don't

Re: [CentOS] NMS Opinions

2009-12-22 Thread Brendan Minish
On Tue, 2009-12-22 at 02:36 +, Joseph L. Casale wrote: > Any opinions appreciated! > jlc Take a look at zenoss too, I am in the process of deploying it as a replacement for a rather elderly and under-resourced Nagios server Liking it a lot so far http://www.zenoss.com/ there's good help on

Re: [CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Kai Schaetzl
MySQL is *not* listening on TCP 3306 since *long* unless you tell it to in the my.cf. It uses a local Unix socket by default. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com ___ CentOS maili

Re: [CentOS] NMS Opinions

2009-12-22 Thread Les Mikesell
Brendan Minish wrote: > On Tue, 2009-12-22 at 02:36 +, Joseph L. Casale wrote: > >> Any opinions appreciated! >> jlc > > Take a look at zenoss too, I am in the process of deploying it as a > replacement for a rather elderly and under-resourced Nagios server > Liking it a lot so far > http:/

[CentOS] iptables ... *BSD pf ... pfSense

2009-12-22 Thread Götz Reinicke - IT Koordinator
Hi, I followed the "Optimizing CentOS for gigabit firewall" posting and as some posters wrote pf is soo sooo sso mutch faster, I was thinking to give it a try. But I'm not familier to BSD so I was looking for some tools and found "pfsense" http://www.pfsense.org/ "pfSense is a free, open

[CentOS] IPTABLES --hitcount maximum value

2009-12-22 Thread James B. Byrne
In-Reply-To: <4b30f618.6060...@kinzesberg.de> On: Tue, 22 Dec 2009 17:38:48 +0100, "Dirk H. Schulz" wrote: > That is a new "phenomenon" I also ran into. You now have to > adjust memory values. > > I have added to my /etc/modprobe.conf > "options ipt_recent ipt_pkt_list_tot=75" > Now I can use hi

[CentOS] About liveCd installation...

2009-12-22 Thread Tolun ARDAHANLI
Hi List; I didn't found the installation from Centos5.4 LiveCD. Does not have any installation script inside this distribution? or How can I start to install LiveCd to HDD? Thanks a lot... Sincerely, Tolun ARDAHANLI Computer Engineer web: www.ardahanli.net E-mail: to...@ardahanli.net Icq:326600

Re: [CentOS] iptables ... *BSD pf ... pfSense

2009-12-22 Thread Tim Nelson
- "Götz Reinicke - IT Koordinator" wrote: > Hi, > > I followed the "Optimizing CentOS for gigabit firewall" posting and as > > some posters wrote pf is soo sooo sso mutch faster, I was thinking > > to give it a try. But I'm not familier to BSD so I was looking for > some > tools and fo

Re: [CentOS] iptables ... *BSD pf ... pfSense

2009-12-22 Thread Timo Schoeler
On 12/22/2009 07:22 PM, Götz Reinicke - IT Koordinator wrote: > Hi, > > I followed the "Optimizing CentOS for gigabit firewall" posting and as > some posters wrote pf is soo sooo sso mutch faster, I was thinking > to give it a try. But I'm not familier to BSD so I was looking for some > too

Re: [CentOS] NMS Opinions

2009-12-22 Thread Guy Boisvert
Brendan Minish wrote: > On Tue, 2009-12-22 at 02:36 +, Joseph L. Casale wrote: > > Take a look at zenoss too, I am in the process of deploying it as a > replacement for a rather elderly and under-resourced Nagios server > Liking it a lot so far > http://www.zenoss.com/ > there's good help

[CentOS] SOLVED - Re: Frustrations with MySQL loss, tcpdump, netstat, etc

2009-12-22 Thread Slack-Moehrle
Hi Guys, OK, I figured out the problem, It would seem that Comcast spelling my DNS entry wrong would do it! I have done this a zillion times, I was totally stumped as to what I would be missing this time. Thanks everyone for their help. -Jason - Original Message - From: "Kai Schaet

[CentOS] partitioning order and IO performance

2009-12-22 Thread Carlos Santana
Hi, Does mount point specification while partitioning (order in which I specify /, /boot, swap etc..) affect performance? I am not sure about the syntax, but I guess one can also specify address/block range while partitioning. Does it affect IO performance? Probably a stupid question, but just cur

Re: [CentOS] partitioning order and IO performance

2009-12-22 Thread Robert Nichols
Carlos Santana wrote: > Hi, > > Does mount point specification while partitioning (order in which I > specify /, /boot, swap etc..) affect performance? I am not sure about > the syntax, but I guess one can also specify address/block range while > partitioning. Does it affect IO performance? Probab

Re: [CentOS] SFTP - stalled - on large files

2009-12-22 Thread Jay Leafey
We had a similar problem copying files between servers on two of our campuses via SCP. After a while the connection just stalled out and hung. The problem turned out to be SCP and SFTP interacting a bug in the SACK (Selective Acknowledgment) algorithm used in Linux. We turned it off on the t

[CentOS] iptables -m connlimit

2009-12-22 Thread Helmut Drodofsky
Hi, to the use of connlimit, I have found http://lists.centos.org/pipermail/centos/2008-June/059656.html Is there something new with centos 5.3 or 5.4? Helmut ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman

Re: [CentOS] partitioning order and IO performance

2009-12-22 Thread Ross Walker
On Dec 22, 2009, at 6:13 PM, Robert Nichols wrote: > Carlos Santana wrote: >> Hi, >> >> Does mount point specification while partitioning (order in which I >> specify /, /boot, swap etc..) affect performance? I am not sure about >> the syntax, but I guess one can also specify address/block rang

Re: [CentOS] partitioning order and IO performance

2009-12-22 Thread John R Pierce
Ross Walker wrote: > Also, for random IO the opposite is true, the rotational latency is > significantly smaller on the inner tracks than the outer tracks, so > random OPs perform better there. > um, most all hard disks are CAV, so the rotational latency measured in milliseconds is constan