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

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166 views

losing connectivity in Linux with Dell blades and such

So we have some dell blades and chassis (blades are M600's, chassis M1000's) and other systems (R710 with MD3000 array). The R710 exports a source tree via nfs for the blades to build and test with. ...
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4answers
322 views

Trying to scale my dedicated server for high traffic

I have a quad core xeon, 8GB ram, and only 2 x 1TB SATA drives right now. I am trying to figure out how to scale my application to handle as much load and traffic per day as possible. I have an ...
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2answers
59 views

Where should websites live on Centos servers?

I am re-organising some web servers, the majority of which are running the Centos linux distro. Each of these servers has multiple sites being served using virtual hosts. Is there a "correct" ...
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1answer
183 views

configure Cpanel Openvz container

I need to config a cpanel openvz container. I know how to configure standards containers but I would like to find more info a about cpanel containers, configurations tips and other info related with ...
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1answer
2k views

Centos+Apache+Phusion+REE=FAIL

I have been trying to get Phusion Passenger running on 5.6 for the last couple of days with no luck. Initially, I started with Ruby 1.9.2 under RVM since the default Ruby on RHEL-based distros is ...
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1answer
700 views

Plesk 10 port 8443 connection timeout

I've installed plesk 10 on centOS and after installing to access the cp you need to go https::8443 I'm not being able to, and would like to find out why i can ssh to the server and i can, from the ...
0
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1answer
48 views

Updating CentOS

I have a CentOS 5.5 installation with ruby, dovecot (and some other soft) installed from source, and soft like postfix, samba, bind etc. installed from yum repositories. This box is online for more ...
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1answer
365 views

Problem with sendmail combined with iptables

I have the following setup, for my iptables, I want my server secured as can be. However, I just have one problem... Sendmail does not work, when I have iptables enabled. Even though I opened port 25. ...
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2answers
2k views

PHP Woes - 500 Internal Server Error (brand new server)

Anyone ever seen these errors, or something like it? /usr/bin/php: error while loading shared libraries: libcom_err.so.2: failed to map segment from shared object: Cannot allocate memory [warn] UID ...
1
vote
1answer
2k views

haproxy forwardfor ignored while in tcp mode

I have a haproxy set for https and as such I had to enable mode:tcp for that but as it turns out becasue of that forwardfor is being ignored and I can't see original ip. is there any way to bypass it? ...
2
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2answers
5k views

How to mount Windows share on boot using mount.cifs and autofs/automount?

I'm having some trouble mounting a network share using autofs. I have added the following line to /etc/auto.master: /mnt/mountpoint /etc/auto.servername I then created the file ...
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2answers
1k views

NFS client can mount, fails to automount

I have /etc/auto.master: /cpy/users /etc/auto.users --timeout=90 I have /etc/auto.users: * -fstype=nfs4,rw,proto=tcp,port=2049 server:/users/& On an "ordinary" CentOS 5 machine, these ...
2
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1answer
525 views

Cloud Server Port says connection refused?

I'm playing around with using a Rackspace Cloud Server (running CentosOS 5.5) as a server for the Beanstalk Message Queue system. I'm starting Beanstalk with the command line of "Beanstalkd -d -l ip ...
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4answers
12k views

How to install network adapter in Linux (CentOS 5)

My company has a CentOS 5 Linux server. The network card died today and we replaced it with an Intel Pro 1000 GT network adapter. I'm not great with Linux. How can I get this new NIC working? Thanks ...
1
vote
1answer
2k views

Installing Integration Services for Hyper-V into CentOS-5.x

I am trying to install Linux Integration Services v2.1 into CentOS 5.5 running on Hyper-V. I have followed the dkms instructions from here: http://support.microsoft.com/kb/2387594 This works, in ...
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1answer
935 views

qlogic HBA tuning recommendations random iops

Trying to squeeze out the most performance from a 3PAR SAN with Qlogic HBA in our HP servers. We run on Centos 5.5 with latest updates/kernel. Can anyone give useful recommendation or tuning to get ...
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3answers
229 views

ruby 1.8.7 makes and installs on Centos 5.5 but won't run

I've downloaded ruby-1.8.7.p334 ruby-1.8.7.p334.tar.gz from ftp.ruby-lang.org, and decompressed it. When I did ./configure , it complained about no suitable c compiler, so I didyum install gcc. Then ...
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3answers
1k views

NTP time sync not working in a DOMU Centos 5.5 server

I have a Xen Centos 5.5 server with ntpd working in virtual server. NTP time sync seems not working. I have disabled any firewall. my grep -i ntpd /var/log/messages output: Apr 1 16:15:47 ...
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votes
1answer
1k views

Cannot login to cyradm to administrate Cyrus IMAP

I have a fresh installation of cyrus-imapd (2.3) on CentOS 5 with all these packages: cyrus-imapd cyrus-imapd-utils cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 I have changed the password of user ...
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vote
5answers
420 views

Simple 2 node virtualisation cluster

Could someone recommend an opensource virtualisation cluster suite?! I'm looking at setting up a 2-3 node cluster w/ 2 webservers 2 mysql and a virtualised loadbalancer for apache. We currently have ...
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3answers
1k views

Allow IP Address Range In hosts.allow

I would like to allow this Ip Range 94.1.1.1 to 94.15.255.255 I tried inputting this in the hosts.allow file after reading here that you need to use networks and netmasks? i don't know much about ...
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2answers
1k views

Enable zip on PHP 5.1.6 without recompile

I've got a CentOS / Red Hat 5.5 box running the current PHP 5.1.6 package. A user is getting the following error: Fatal error: Class 'ZipArchive' not found in /var/www/html/<filename.php> on ...
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1answer
149 views

CentOS accidental httpd upgrade

I recently tried to get trac and svn working with apache on centOS 5 through some googling I found I needed to install mod_dav_svn. I used yum to install it it listed a httpd 2.2.3 as a dependency ...
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2answers
482 views

kickstart from USB stick with RPMs not in ISO (CentOS5.x)

We have been looking to setup a USB disk (stick) for uniformly configuring our servers. (and when I say "we" I mean my colleague figured it out with my occasional help) We would like to explicitly ...
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3answers
709 views

What are the ups and downs of virtualmin and kloxo?

I'm looking at both virtualmin and kloxo for managing a CentOS 5 server that I'm setting up, and I'd like to know what the ups and downs of each are. It will mainly be a web server, and I don't have ...
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3answers
145 views

Network apache server for windows clients using CentOs 5.5

I just installed a new server for replacing a Windows XP in a small office, the clients are windows pcs and the new CentOs 5.5 is running a LAMPP setup. The clients are unable to connect to the ...
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3answers
360 views

Any user in the apache user group can view others home directorys and edit files

Okay, Just recently uncovered a very large exploit in my server. Any hosting account that was set up through the Kloxo controll panel is automatically part of the "Apache" user group. This means if ...
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1answer
512 views

CentOS Group Permissions

How do I give all users in the group ftp-users full read/write acces to /var/www recursively? Thanks
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1answer
160 views

Linode - Centos 5.5 -

I rather foolishly undertook to install a control panel on a Linode. I opted to use CentOs 5.5 (either ordinary or 64 bit) but I am like a monkey playing a reward game... I have some idea of what I ...
0
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1answer
1k views

Postfix allow local users and authenticated outside users to send mail

I currently have a Postfix setup on my VPS (CentOS 5.5) that allows for SMTP mail to be sent with the user being authenticated via a MySQL database. I am using Dovecot. However, any program or ...
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2answers
453 views

chmod a folder permanently

kind of a newbie to server stuff. I am running a centOS setup with whoosh search engine for my django app. Everytime I restart or rebuild my index i get a warning that states IOError: The path to ...
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1answer
60 views

harddisk free space not showing coreclty

I installed centos5.5 on my PC which has RAID1 and size of 2TB. But after installation it shows only 200 GB free space. How can I recover the volume ?
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4answers
1k views

Apache, PHP, MySQL Work faster in Linux than Windows?

I currently develop for Drupal CMS using The Uniform Server. I also tried Xampp and WampServer. Loading each page of drupal take long more than 50 second which is really painful. My Computer is: ...
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2answers
711 views

CentOS 5.5 with Xen Strange Connection Problem

I am having a strange problem with my CentOS 5.5 server. I use this server as a Xen host with 2 Xen guests. The problem is that I am unable to connect to the server using SSH or VNC. Both SSH and VNC ...
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0answers
526 views

How to configure Centos 5.3 using OpenLDAP to store and serve SSH public keys?

I want to be able to manage all my users logins via OpenLDAP. I am using Centos 5.3, OpenSSH 4.3p2-42 and OpenLDAP 2.3.43. I have installed GOsa2. Is there a GOsa plugin to manage the SSH keys in ...
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5answers
2k views

Server hang on CentOS 5.5

I'm running CentOS 5.5 on a server. It runs several VMware virtual machines and an NFS server. Occasionally, like today, it hangs. There's nothing in /var/log/messages that indicates any problem. ...
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vote
2answers
1k views

vsftpd: access SFTP on local user without shell access with specific directory

I'm trying to configure vsftpd on my vps in order to access SFTP from Transmit/FileZilla. I've opted for SFTP and the OpenSSL is configured, but I can't seem to manage to add a new user only for ...
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1answer
434 views

Installed pure-ftpd on CentOS 5, removed it, but still running

This is basically my first post on serverfault, although I do watch Stackoverflow multiple times. I've recently purchased a VPS and started to configure it. Since most of my working are design ...
0
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1answer
35 views

net card not installed

i have many times try to install nic drivers but it is showing one error check old drivers and unload it. build the module and install make:***/lib/modules/2.6.18.e15xen/build: no such file or ...
0
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1answer
332 views

CentOS 5.5 - Disk Filling Up With No Known Cause

I have a CentOS 5.5 box with a seperate partition for /home. df -h shows it at 100% usage. df -i shows tons of free inodes. du -sh /home /home* shows that there are about 100MB worth of files in ...
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0answers
143 views

SAS disk performance drops a while after reboot on cent 5.5 boxes

So we have some workstations with identical hardware. The Fedora14 box has a couple weeks uptime and still get good performance. hdparm -tT /dev/sda /dev/sda: Timing cached reads: 21766 MB in ...
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4answers
2k views

Other processes take over port 80 when restarting Apache - why, and how to solve?

I have a CentOS 5.5 server running Apache on port 80 as well as some other applications. All works fine until I for some reason need to restart the httpd process. Doing so returns: sudo ...
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1answer
693 views

RPM ERRORs on a cloud CentOS 5.5 server

I am attempting to add an rpm repo in order to Yum install a Munin node, however i keep getting the following error: rpm -Uvh ...
4
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2answers
404 views

static web server: 32 or 64 bits?

For a webserver serving just static files (lighttpd or nginx) which is better, 32 or 64 bits? Which OS is preferable? Centos 5 or Ubuntu 10.04?
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2answers
223 views

Apache slows randomly

I got a new dedicated server from singlehop with a 1Gps connection. For about a week the thing was a beast. Everything ran super fast. it is now dirt slow.... My $30/month godaddy vps is faster. I've ...
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1answer
374 views

Centos 5.5 install PearDB

Disclaimer: I use Linux for some jobs but I am not a Linux admin. I have a Centos 5.4 machine which performs some server duties and doubles as a web site development machine. PHP 5.3.3 was installed ...
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0answers
1k views

Lighttpd 403 Errors on HTML and PHP pages

I installed lighttpd on CentOS 5.5 64-bit. Everything seems fine and running except I cannot get past 403 errors on both HTML and PHP pages. I have used CHMOD and CHOWN, changed ownership in the ...
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3answers
2k views

Which filesystem for 16TB under CentOS 5.5?

We have a PowerVault NX3100 from Dell here. I have to install a Linux Server on this system and don't know which filesystem I should use and which partition layout would be useable for the RAID with ...
5
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3answers
11k views

where is my php installation path

I am using centos and I need to find out where is the php installation path is. Is there a command I can use to find that out. Thanks
1
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1answer
670 views

Can't contact LDAP server (-1)

When I do a ldap search using the command Ldapserach -x -b 'dc=domain,dc=com''(objectclass=*)' it gives an error stating ldap_bind: Can't contact LDAP server (-1). I am doing a ldap search on the ...