CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.

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Automatically acquire new IP address in new network

I'm running a Centos virtual machine on a laptop using a bridged network connection to avoid double-NAT issues, with the address assigned via DHCP. This works fine until I move the laptop to another ...
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0answers
594 views

Install CentOS in a VirtualBox to a Compact Flash and use it on a mini PC

I got into a very specific situation and want to get to know your opinions. I have got a mini PC with Intel Atom processor which should run CentOS with an upgraded kernel to 3.x and some ...
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2answers
614 views

Unable to install Mono 2.6 on CentOS

I have an application that breaks on mono 2.10, so I'm trying to install an older mono instead. I found an RPM and tried to install it, but it won't install (I believe) because the glibc and gcc ...
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vote
2answers
971 views

How to extend second CentOS 5 partition in VMware

I know this question has already been answered for a primary partition, but what about a secondary? I have extended the space to 30G in VMware. When I perform an fdisk -l, here's the output: Disk ...
3
votes
2answers
341 views

Is it better to partition one drive or use separate drives?

I am a system admin with limited Linux experience, and have been tasked with setting up Cent OS 5.8 64bit install, and creating a template once complete. My main client base will be developers, and I ...
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vote
3answers
2k views

Root permission - username ALL=(ALL) ALL does not work

I'm a beginner. I'm trying to give my user root permissions, so I edited the sudoers file like this: black ALL=(ALL) ALL "black" is my username. But I still don't have root permissions, and ...
1
vote
1answer
768 views

Centos 6.3 force password prompt on clicking nm-applet tray icon?

I'm using Network Manager to connect to a secure wireless network on a publicly accessible kiosk machine. The problem is, if the user manages to get to the desktop, the nm-applet is accessible by a ...
2
votes
2answers
4k views

Getting config error for yum in CentOS

I'm very new to linux, and I am using CentOS in a VM for program testing. Everything seems to be fine, except for every few minutes I get this error: Error Type: <class 'yum.Errors.ConfigError'> ...
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votes
2answers
4k views

CentOS: Install packages listed in a text file?

I have an existing CentOS installation which I'd like to install extra packages to. The packages to be installed were supplied to me in a list, one package per line, which looks like: .... ...
1
vote
1answer
928 views

httpd-devel requires outdated version of glibc-common on CentOS 6.3

httpd-devel requires an outdated version of glibc-common on CentOS 6.3 x86_64 and Apache/2.2.15. It wants 2.12-1.80.el6 and I have 2.12-1.80.el6_3.3.x86_64 installed (via CentOS @update repo) Here is ...
3
votes
1answer
7k views

How do I download and launch a JNLP file in CentOS?

I'm using Amazon's GPU cluster to experiment with some HPC java code on CentOS. The Java application is in JNLP format and has a GUI. I've followed Amazon's getting started video, but I'm not ...
2
votes
2answers
1k views

Can readahead-services be safely disabled?

I am just going through the service-list of a server (CentOS 5) - the question will probably apply to other RedHat, Fedora, ... versions, too. Note that my servers normally run in runlevel 3 (no GUI ...
3
votes
1answer
617 views

Kickstart: one network card with DHCP, one with static IP?

I am using Kickstart to automate a CentOS install. I wanted one of the interfaces to have static IP so I wrote - network --onboot yes --bootproto static \ -ip="intended IP" -netmask="intended ...
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vote
2answers
274 views

Runtime User Privilege Management ColdFusion on CentOS cPanel

I'm needing to understand the correct workflow for managing permissions to allow the ColdFusion 9 runtime user {coldfusion} to have access to user accounts. The germane elements ... Centos 5.8 WHM ...
2
votes
1answer
2k views

PPTP ping client to client error

I installed pptp server on a centos 6 64bit server PPTP Server ip : 55.66.77.10 PPTP Local ip : 10.0.0.1 Client1 IP : 10.0.0.60 centos 5 64bit Client2 IP : 10.0.0.61 centos5 64bit PPTP Server ...
4
votes
1answer
384 views

In my secure log there is a new group added that Im unsure about after adding semanage

I installed semanage onto my CentOS 6.2 box and I was going through my secure log after the install and noticed this entry: Aug 31 22:12:17 xxxx groupadd[12929]: group added to /etc/group: ...
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votes
2answers
5k views

Linux CentOS 5 SSH User Permission Denied

Today when I try to SSH into my server, I get a permission denied message (same for sftp). It used to work well before, I didn't change any server settings, except I was trying to modify a few folders ...
3
votes
1answer
871 views

Changing firewall settings after installation of CentOS via kickstart

I was trying to install CentOS 6.3 via Windows Deployment Server. And to automate the installation process I used kickstart file in which i provided various details required during installation.Then i ...
0
votes
2answers
998 views

File extension case sensitivity on CentOS [duplicate]

Possible Duplicate: How to clean up file extensions? I'm using CentOS. There are >10M images in one of my folders, which are furthur grouped into subdirectories. The issue is that some of ...
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0answers
470 views

Unable to run yum update on virtualized centOS 6.3

I am running a virtualized CentOS 6.3 on a Windows 7 computer. The computer (4 GB RAM) is connected to a corporate network. When I run yum update, it shows some progress, then eventually the VM (2 ...
2
votes
2answers
368 views

Is it possible to add CP-1252 support to CentOS?

We have a CentOS backend running server software that is processing files generated by our clients. Many of our clients are Windows users, and generate these files on their Windows machines in the ...
3
votes
2answers
850 views

allow webalizer in selinux (centos)

I roughly followed these instructions: http://library.linode.com/web-applications/analytics/webalizer/centos-5 to install and configure webalizer to run on several VirtualHosts. Unfortunately when i ...
2
votes
2answers
1k views

where to find unhide-tcp for centos 6?

I've got a centOS 6 64 bit server, and have installed rkhunter. I spent some time running scans and tweaking things so that rkhunter throws up no warnings (e.g setting the PermitRootLogin var in ...
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2answers
20k views

How can I set the time in Centos so that resetting the OS doesn't revert to its default value?

I have a VPS running on Cent Os 5.8 (x86). There are situations in which we are forced to reset the entire VPS (it hangs and the only way to get it back on is to reset it). When we do so, the time is ...
3
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1answer
10k views

/proc/sys/kernel/hung_task_timeout_secs error

I am building a CentOS 6.2 webserver on a Hyper-V Cluster and have hit a major issue. The current setup is this: Operating System: CentOS 6.2. Minimal Server Install Installed software includes: ...
2
votes
2answers
107 views

reformat a text file to have all text on one line using CentOS 5.6

I have a 210-line block of HTML that I have stored in a HTML for debugging purposes. The HTML, as you would expect, is formatted accordingly so is stored in the file with spaces and tabs. Is it ...
2
votes
0answers
343 views

Nagios not running notify command

I am in the process of creating a notify command for our Nagios server to notify us via our Kannel SMS sender. This is what I got so far: /usr/local/bin/curl -v -G -d 'username=user' -d ...
4
votes
1answer
61 views

Can servers be synchronised to share the same configurations? [duplicate]

I have three VPS' running on separate hosts. They've had CentOS 5 installed on them at various points and I assume all run with slight variations of Webmin, PHP, MySQL etc. I've started to notice ...
5
votes
1answer
1k views

What is SSTP vpn server and how can I run one?

I've read a couple of L2TP and PPTP tutorials on the net and there are just dozens of "running PPTP/L2TP on Linux" guides available out there and I successfully made packages like open-swan or pptpd ...
4
votes
1answer
3k views

How can I setup a SOCKS4 or 5 proxy on CentOS 5.8?

I live in Iran and due to its restrict censorship, We all have extreme difficulties accessing normal sites and services. So I thought this would be a great idea to setup a proxy server on my VPS, so ...
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1answer
4k views

How to install freetds on centos 6

This error occurs to me when i install freetds on centos Machine. What is the problem?? This is Error appears when i installed freetds i installed unixODBC but with version 64 bit How can i Solve ...
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2answers
4k views

Winbind PAM.D AD Groups, CentOS 5, Allow Only?

I'm attempting to create a configuration, where users in specified AD groups can log in. I'm having trouble stopping every AD user from logging in. I've been doing this though /etc/pam.d/sshd/ but ...
1
vote
1answer
4k views

How to change SMTP outgoing port on Centos 6.3

I have a dedicated server running Centos 6.3. My customer wants to use Microsoft Outlook to send and receive e-mails. He can connect and receive his mails but when he tries to send e-mail he can't ...
3
votes
2answers
4k views

CentOS grub2 booting iso via loopback

I've got a usb-key setup to multi-boot different Linux images. I'm trying to add CentOS, here's a post with similar entries for grub.cfg set drive_label=multipass01 set isopath=/iso menuentry ...
3
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0answers
176 views

Traffic getting routed through Apache

for some reason, certain outgoing traffic on my server gets routed to the apache webserver i am running. this problem just started happening. i have the webserver set up to use vhosts, the webserver ...
3
votes
2answers
784 views

Is it possible for a CentOS system on EC2 to not have a bootloader?

I'm attempting to look for grub: [root /]# find / -iname "*grub*" /sbin/grubby /usr/share/man/man8/grubby.8.gz /usr/share/vim/vim70/syntax/grub.vim /usr/share/vim/vim70/ftplugin/grub.vim ...
3
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2answers
3k views

yum - list configure flags/options used to compile package

How can I see a list of flags/options used to configure and compile a certain package in yum, without having to install it first? Say apache, for example. $ yum list available httpd Available ...
6
votes
3answers
11k views

What prevents a machine from responding to pings?

I have a CentOS release 5.4 linux box on Amazon EC2 that I'm trying to set up to be monitored via Nagios. The machine is in the same security group as the nagios server, but it seems to be ...
3
votes
1answer
2k views

Start network service at boot time on CentOS

I've recently reinstalled CentOS onto a computer of mine. I have OpenSSH Server on it now, as did I before I reinstalled the operating system. Here's the difference: Before, SSH started without even ...
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vote
1answer
175 views

Is rpm the only file extension for repositories

I've noticed that repositories in CentOS have the .rpm extension. Are there other extensions? Is .rpm specific to the operating system? i.e. do other linux operating systems have other extensions? ...
2
votes
2answers
2k views

Installing Audacity - Package Problems

Have CentOS 6.2. I'm trying to install Audacity, and I'm getting package problems. The Audacity webpage says I need the wxWidgets library, which I think I've installed correctly (./configure, make, ...
6
votes
3answers
3k views

What does it mean to be in group 0?

Several users in a system I inherited have their group set to 0 in /etc/passwd. What does that mean? Do they essentially get full root privileges? The system is running CentOS 5, and the users ...
0
votes
1answer
223 views

Which wiki software does CentOS.org use? [closed]

Like the title says, if you goto CentOS.org and hit up the wiki, I am trying to figure out which wiki software it is. Usually I can scroll to the bottom and get the wiki software name and version from ...
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votes
3answers
1k views

How can I know the process name which is opening a tcp port?

I have two linux servers. Let's say they are C and S. C is client of S On my S machine, I type. $ netstat -an | grep ESTABLISHED tcp 0 0 192.168.1.220:3306 C:57010 ...
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votes
11answers
61k views

Cannot enable network after CentOS 6.3 fresh install

I am trying to perform a fresh CentOS 6.3 installation then run various yum commands such as yum install httpd. The installation runs fine, however I cannot run any network based commands like yum I ...
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vote
2answers
350 views

How to maintain file ownership when running 'yum update'

I'm running CentOS 6.2 and installed nginx as root. After the install I changed the owner and group of the install to it's own user and group to keep thing a bit more secure. I logged in as root and ...
5
votes
2answers
225 views

High-level command to request several branches of snmp in one tcp-session?

We are trying to monitor our servers mainly with SNMP. Due to performance reasons we are changing this from single requests to snmp-bulk-requests (as allowed in SNMP v2c). In theory (at least to my ...
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1answer
1k views

Path issues with a source install

I hope my title isn't confusing. I've got a CentOS 5 machine and I had Ruby 1.8.7 installed on here. So in order to upgrade my Ruby installation and gems/rails I Uninstalled Ruby: sudo yum remove ...
0
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1answer
91 views

CentOs Unable to load pages that are on server

I am having a little difficulty accessing pages that are on my server. Under /var/www/html/ I have an index.html page, and when I try to access it from chrome, it times out. The permissions on html/ ...
2
votes
1answer
196 views

How to block ip adresses which access more than n-pages in m-prediod of time?

How to block ip adresses which access more than n-pages in m-prediod of time? I want to blovk all auto-traffic and I am not sure how to approach this issue.