CentOS is a free (as in beer and speech) GNU/Linux distribution that is community driven and based on source code released from RHEL.

learn more… | top users | synonyms

1
vote
2answers
2k views

/var/log/messages showing lots of CE Err=0x2000 even on unused banks (slots)

I recently had to upgrade an old server (HP ML350G5) with used FBDIMM DDR2 RAM (could not get new ones where I live). After rebooting /var/log/messages has been plagued with CE Err=0x2000 errors but ...
0
votes
2answers
575 views

How to Update CPanel Via SSH [closed]

I am on a server running CentOS 5 with WHM WHM 11.36.2 (build 0). Is there a way to update Cpanel using SSH or should I use the package manager of WHM?
0
votes
1answer
4k views

GRE: read from PTY failed error when connecting multiple clients to PPTP

I have just installed a pptp server and now I can make it work. The problem is, it can only be connected to by one client. How do I set it up so that it will allow multiple users? Here is the error ...
-1
votes
1answer
481 views

How to block ports (in Linux) based on the IP used to connect?

I'd like to block specific ports based on the IP used to connect to my (Linux) dedicated server. For example, I have the following IP's assigned to my dedicated server: 192.168.0.1 192.168.0.2 192....
0
votes
1answer
373 views

PPTP connection gets terminated after I try to do a speedtest

my connection to pptp gets terminated when I try to do a speedtest on speedtest.net I have a vps account with centos 5 installed. It uses openvz for virtualization. on /var/logs/messages the error ...
0
votes
1answer
283 views

How do I add eth0 on centos 5 that is using openvz

I have a vps account with CentOS 5 installed. It uses OpenVZ for virtualization. Now I'm trying to install pptp service (using this guide) on it. I'm currently on Step 6 but I don't see any eth0 ...
1
vote
0answers
135 views

Connect two servers with OpenVPN

guys, I need a consulting. I need to connect two servers which are located at another places geographically. One of servers is at LeaseWeb, and another is at our office in Moscow. I'm using OpenVPN ...
5
votes
1answer
12k views

Too many TCP connections causes disconnections

I have a game server which runs with TCP connections. Server disconnects users randomly. I think its related with TCP settings of server. In local development environment written code can handle 8000+...
0
votes
3answers
5k views

Installing PHP 5.3 Pear on centos 5.8

I just created a VPS with 32 bit Centos 5.8 and installed php53 and a host of other php 5.3 packages. I would like to install memcached using yum but I get the following error Resolving Dependencies -...
0
votes
1answer
583 views

ESX Unix guest & AnywhereUSB [closed]

We got a Nagios (FAN) VM within an ESXi little cluster (4 servers). I have to configure SMS alerts with Nagios, so I have to plug a phone via usb. Problem : I want my usb to be seen even if my VM ...
0
votes
1answer
83 views

Upgrading CentOS Downtime?

I'd like to update CentOS from 5.8 to 5.9 since I've been advised that there are security issues in my current version. Since it's not a major release, should I expect any downtime? Also, are the ...
1
vote
0answers
55 views

Why my SSDs are in /dev/hdx instead of /dev/sdx on CentOS 5.9?

I have two SSDs Kingston SH103S3240G plugged on SATA ports of my Intel Server Board S3000AH. The SSDs apear like a PATA device (hdx instead of sdx) on my CentOS 5.9. I'm having problems related to ...
2
votes
2answers
185 views

CentOS 5 extremely slow when is running a download

When my server is downloading a file or executing other IO operations the other server functions become extremely slow (almost locked). Even other functions that do not use the network. When a ...
3
votes
1answer
1k views

ssh connection operation timed out using rsync

I use rsync to backup my remote server on my local device but when I combine it with a cron job my ssh times out. Just to be clear, the data is stored on a remote server and I want it stored on my ...
0
votes
3answers
4k views

ISO2USB vs Universal USB Installer vs LinuxLive USB Creator for a CentOS 5.9 install

Is there any functional difference among these three tools, if I want to create a CentOS 5.9 bootable USB installer using a Windows box? I realize ISO2USB was more CentOS-specific, but also that ...
0
votes
2answers
520 views

How to setup ssh SOCKS proxy on another host instead of localhost? [closed]

My MacBook (192.168.8.201) WIFI is off and the LAN assigned IP does not have internet access. A CentOS box (192.168.12.50) has internet access. So I setup an instant SSH SOCKS proxy to surf the web ...
-4
votes
3answers
148 views

Cannot login as root user in ssh [closed]

I create an user with root prevelages in my server. Now i cannot login into the server as root through ssh. Also I cannot access the vi editor through the new user login.
0
votes
3answers
97 views

/tmp flooded with “.myapp” files

On my new server (dedicated, CentOs5), 2 or 3 .myapp files (like "51b9dc4cc246f.myapp", ~500 Mo) is created every minute under /tmp, fulling my harddisk at an alarming speed. There is nothing in ...
0
votes
1answer
259 views

RVM Not Finding Library

I am running CentOS 5.9 and installed RVM on it. However, whenever I run rvm requirements or rvm install 1.9.3, I get: --> Processing Dependency: libyaml-0.so.1()(64bit) for package: libyaml-devel ...
1
vote
0answers
413 views

correct samba configuration for write access to group?

I'm trying to reconfigure Samba/CIFS on a CentOS client machine specifically because the current setup requires any users logged into the machine to sudo writes to the samba share. I want to take ...
2
votes
1answer
4k views

What does this kernel error mean and how should I respond?

The following except is taken from the logwatch of a production LAMP web server I'm about to inherit. It is a dedicated Dell server running CentOS 5 with RAID 1 across two 1TB drives. I have little ...
1
vote
1answer
7k views

What exactly is the sm-client service and when is it used?

When I restart Sendmail services, I see the following: [root@foo ~]# service sendmail restart Shutting down sm-client: [ OK ] Shutting down sendmail: ...
-1
votes
2answers
3k views

List sudo users in centos

How do I list all sudo users at CentOS server? There are many groups(root, wheel, adm etc) at server, and have users in it. I am looking an easy way/command to find users in all groups who have sudo ...
4
votes
2answers
9k views

How can I configure netcat (or some other stock linux utility) to listen on a specific port on a secondary IP address?

CentOS 5.9 For testing purposes, I want my CentOS server to listen on a secondary virtual IP (eth0:0). I'm familiar with nc -l -p <port> but it only listens on the primary. Is there a way I ...
1
vote
2answers
463 views

qemu-kvm fail to boot Centos 5.3 after Kernel update at the host (feodra)

After updating Fedora 18 to kernel 3.9.x (current 3.9.4), I can no longer boot my Centos 5 guest OS. When I try to boot, the process halt at start and the CPU core work at 100%. If I boot Fedroa (...
4
votes
2answers
10k views

Determine which guest is running on XEN: HVM or PV guest

I'm working with a Xen host which is installed XenServer from Citrix by someone. He already installed a lot of CentOS 5.2 guests on the host. I wonder how to check those guests to know they are PV ...
-5
votes
1answer
270 views

100% swap and high load [closed]

Why would my swap space be 100% full if I have over 2gb of free ram? I am concerned about the high load averages for having 2 virtual cpus (1 core each). Here are the server specs, it is a virtual ...
0
votes
1answer
596 views

RubyGem installation can't find header files

I'm running Ruby 1.9.3 on CentOS 5.3. I installed it by compiling Ruby 1.9.3 from source, along with libyaml. I'm also using rbenv to manage versions, so I placed the compiled installation in ~/.rbenv/...
0
votes
2answers
121 views

Limit if open files mistake on centos 5.5

On my centos 5.5 server,i set in limits.conf with bellow: * soft nofile 409600 * hard nofile 409600 but when i issue command:ulimit -n. It tell me : open files (-n) 1024 I ...
0
votes
1answer
1k views

CentOS 5.9 Apache mod_php issues

I'm currently using NGINX with FastCGI and PHP 5.4 on the production server. Lately we've been getting mass CPU usage spikes and I'd like to spend a few days using Apache and mod_php again to see if ...
1
vote
1answer
4k views

CentOS 5.7 Yum Segmentation fault (core dumped) error [duplicate]

My system Info: OS :CentOS release 5.7 (Final) Apache 2.2.3 Server Running DirectAdmin 1.40.1 Running Exim 4.76 Running MySQL 5.1.57 Running Named 9.3.6 Running ProFTPd 1.3....
-1
votes
2answers
430 views

/var/log/messages filled with FAIL: check_mk address from=

The /var/log/messages log file on our server is filled with endless lines of May 5 11:10:38 crm xinetd[24532]: FAIL: check_mk address from=1.2.3.4 It seems to log every 3 minutes or so, the number ...
0
votes
2answers
585 views

Cannot hit nginx from outside localhost

I am a newbie on nginx, what I am trying to do is setup nginx and be able to use it as my webserver. The issue I am facing now is that when I try to access the IP or domain name that nginx is ...
1
vote
1answer
130 views

Why do I sometimes (but not always) see “internet address” data for an MX record in output for nslookup queries?

CentOS 5.x I've noticed that sometimes I'll see "internet address" for an MX record in the output of nslookup. This doesn't happen all the time though. For example, let's say that foo.com uses ...
1
vote
4answers
130 views

Good pratices to update servers? [closed]

I have many servers running CentOS 5.* and CentOS 6.*, I would like to update them, but there's some applications running and I might crash these applications, which led me to write this post with ...
1
vote
1answer
84 views

Centos install in Xen problems

I'm running ubuntu 12.04.1, and I want to install CentOS 5 or 6 using network installation via http. Using xen images from http://mirror.centos.org/centos/5.7/os/x86_64/images/xen/ my config: ...
0
votes
1answer
1k views

Can't connect to remote CentOS server, possibly disk full

We have a remote server using CentOS 5 with Apache 2.2/PHP/MySQL that have crashed due to possible hard disk being full. Can't access WHM - giving "500 Internal Server Error" Can't access SSH - ...
1
vote
0answers
2k views

Nagios: check services being orphaned?

Recently I noticed that there are some warnings in the nagios.log: [1366060611] Warning: The check of service 'pt-deadlock-logger' on host 'xx' looks like it was orphaned (results never came back). ...
0
votes
1answer
6k views

Cannot start NFS daemon

I'm trying to set up a NFS share but I cant start NFS service: $ service nfs start Starting NFS services: [ OK ] Starting NFS daemon: ...
0
votes
1answer
173 views

How to build from source on CentOS 5.9?

I'm building iptraf-ng on CentOS 5.9 and running into the following errors: src/packet.c: In function ‘packet_process’: src/packet.c:322: error: ‘ETH_P_QINQ1’ undeclared (first use in this function) ...
1
vote
1answer
930 views

Adaptec RAID array was not detected after updating the kernel?

Continue from this topic, the newer kernel booted successfully but it doesn't see my sdc - which is a hardware RAID array (level 10). I'm sure the aacraid module is loaded: # grep aacraid /2.6.34....
-1
votes
1answer
93 views

dd test indicated that it took 51 second to transfer 1 kilobyte, VPS hosting provider claimed not responsible, how? [closed]

I did a dd test on my VPSs, for your information, I am purchasing a VPS with 5 node from tmdhosting. My result: Last login: Wed Apr 10 22:04:46 2013 from 115.85.128.54 -==============================...
0
votes
1answer
592 views

High Load Average, low CPU and Memory Usage and minimum wait time for IO Operation (5%)

I have a VPS with the OS centos 5.7, and it is behaving very weirdly. My VPS is located on a 2-core machine. For a 2-core machine, the load average I can see is very high, as evident when I use the ...
3
votes
1answer
5k views

OpenSSL handshake failure

We were recently forced to migrate our production cloud servers from GoDaddy to Azure because GoDaddy is ending thier cloud server service. One of our servers was a CentOS 5.7 running a JasperReports ...
-1
votes
2answers
135 views

Centos 5 - Configuring a crontab PHP job [duplicate]

I'm running a CentOS 5 server, and trying to schedule a job which runs a php file every day at the same time, I've added a new file to the directory /etc/cron.d/ called get_files The get_files ...
0
votes
1answer
2k views

How can I change path for xml2-config

I've already asked same question in stackoverflow.I need some more help. I’m trying to upgrade libxml2 from 2.6.26 to 2.7.7 on CentOS5.5 I installed libxml2-2.7.7 in /opt/libxml2-2.7.7/bin/ I'd ...
0
votes
2answers
1k views

Cannot install php-intl on CentOS

When I run: yum install php-intl I get this error: Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.as29550.net * epel: ftp.nluug.nl * extras: mirror....
4
votes
3answers
1k views

Compiling kernel version >= 2.6.34 on CentOS 5: RAID set “ddf1_foo” was not activated?

I want to mount a Ceph FS on some CentOS 5 servers. Since the ceph-fuse failed with below errors: # ceph-fuse --no-fuse-big-writes -m 192.168.2.15:6789 /mnt/ceph/ ceph-fuse[7528]: starting ceph ...
3
votes
3answers
844 views

CentOS VM, NTP synchronization problems

We have three CentOS 5.9 VMs on an ESX3.5 host. Because of the nature of the services we provide it is required that the NTP time is synchronized and the time is correct on all three of them. ...
0
votes
1answer
188 views

Many of joomla websites on my server have been hacked; no other kind of website [duplicate]

Today I got that many of Joomla websites on my server are hacked. Some of the hacked joomlas were updated (the last version from 2.5 series) with the last version. In many cases, the main index.php ...