CentOS stands for Community ENTerprise Operating System, the most popular Linux distribution for web servers with almost 30% of all servers using it. Third-party software is not included in the base.

learn more… | top users | synonyms

0
votes
1answer
546 views

Couldn't create error file for command: no such file or directory

When launching tclsh, I am getting this error message: couldn't create error file for command: no such file or directory Can't find out what causes this to happen. How to fix this issue? My ...
1
vote
2answers
4k views

Failed to su after making a chroot jail

On a 64 bit CentOS host I am using script make_chroot_jail.sh to put a user in a jail, not permitting it to see anything expect it's home at /home/jail/home/user1. I did it typing this: sudo ./...
1
vote
2answers
8k views

Problem installing apt-get on CentOS 5.5

Background: I'm wanting to move away from Apache and came across this article which walks through an install of nginx, PHP-FPM and APC. On trying to follow these instructions on my user account of my ...
3
votes
2answers
4k views

Java “could not reserve enough space for heap object” on a Centos VPS

[root@lab ~]# java Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. Any idea how to fix this? [root@lab ~]# uname ...
1
vote
0answers
720 views

installing rhel/centos/fedora on a dell inspiron 17R laptop

Got a dell inspiron 17R laptop. Trying to figure out how to install RHEL/Centos 5.5/Fedora 13 on the box. When using the basic Centos 5.5 liveCD, continously got a repeating error of buffer I/O on ...
1
vote
3answers
1k views

Maximum Number Of Files CentOS Can Handle In One Directory?

I wrote a horribly quick and dirty caching system for a video search website that gzips and caches bing search results inside a hidden "/cache/" directory. Everything was going smoothly for the first ...
0
votes
2answers
483 views

Is portsentry malicious/backdoor?

I recently figured out that a program called portsentry is listening on ports 1 and 111 on my server, but I don't remember installing it! I wonder if it is a malicious service. I searched through ...
0
votes
2answers
1k views

CentOS: determine IP for network device

When CentOS boots up, it tries to determine the IP for a network device (eth0) and fails. 'Determining IP information for eth0... failed; no link present.' I'm curious to know how, after booting ...
0
votes
2answers
1k views

PPTPD on Centos 64 bit 5.5

Can I install pptpd on CentOS 5.5 running a 64 bit version? I'm unable to find a package for the same.
3
votes
1answer
2k views

Market Share Points of Linux Server Distributions [closed]

Which distribution does have best market share rates? Is it still CentOS? I'm guessing Ubuntu server has already overtaken others. But I'm not sure. Is there a reliable document about this?
0
votes
2answers
348 views

How to install Perl in personal unix area?

I'm working in a lab running a CentOS server with Perl 5.8.8. I would like to install a newer version of Perl for my personal use only (i.e. do not affect other users). How can I do that?
0
votes
2answers
2k views

ext3 partition randomly mounts read-only

The /var partition randomly mounts read-only, when I reboot it mounts as rw again. OS: CentOS 5.4 partition: /var, size: 80G the /var is for web logs and MySQL data file.
1
vote
2answers
3k views

How to install Xpdf on Centos 5.5

I'd like to install xPDF on a CentOS 5.5 server. No GUI, I really just need the console apps. Can anyone give me a brief guide?
0
votes
1answer
2k views

PHP Warnings not being logged?

I am trying to trace down a script and have found that my problem is coming from httpd. To summarize that post, something is attempting to connect to a website and is [properly] being blocked by the ...
2
votes
2answers
496 views

Tracing what program is making a network connnection? (CentOS)

I was wondering if it is possible to find out which process is trying to make a specific network connection. On a server I support which hosts websites for about 200 users, the iptables firewall keeps ...
2
votes
1answer
148 views

Where download CentOS-only basic packages?

I am thinking in starting a CentOS based distribution for communication (call center) and collaboration (IM, email, calendar) tools. What I want to find is Where to get CentOS-only base packages? ...
3
votes
2answers
3k views

How do you boot linux with networking disabled?

Is there some way to disable networking by passing a kernel option through grub? Prefereably I could only disable 2 interfaces, but disabling all networking would be okay also. My use case is that I ...
0
votes
5answers
337 views

CentOS space lost?

I have a centos 5.5 VM (6GB) just for php development, recently i've noticed about space lost: df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 ...
1
vote
1answer
1k views

Skype 2.0.72 - download for Fedora Centos

Still today we dont have the SkypeKIT in Hand. I need a way to implement the project, where the project deadline is end of this Aug, 2010. I figure out that i can do it using ALSA sound driver. I ...
2
votes
1answer
585 views

SMART Errors in Logwatch

I have an older Dell Precision 530 running CentOS 5.5. I am seeing these errors in logwatch: -------------------- Smartd Begin ------------------------ Currently unreadable (pending) ...
0
votes
1answer
2k views

CentOS: Extending a partition

I have CentOS 5.5 running in a VM on XenServer. I've shutdown the VM, changed the hard drive size from 24GB to 30GB and rebooted it. The root partition (/dev/xvda1) is still showing the same size it ...
23
votes
4answers
83k views

Where Linux places the messages of boot?

I want to find place to where Linux writes all boot messages. You know: facility one [STARTED] facility two [STARTED] facility three [FAILED] I searched with find . -print0 | xargs -0 grep ...
6
votes
1answer
2k views

How can I resize a partition managed by LVM?

I have a fresh CentOS install on my machine and I would like to make space on the drive available in order to install Arch Linux. Unfortunately, LVM is new to me and doesn't appear to work well ...
2
votes
2answers
45k views

How do I save changes after editing vi /etc/hosts?

I am doing a Linux installation. I installed the system fine and am trying to change the vi /etc/hosts file. I have edited the file but am not sure how to save it. I have --INSERT-- showing at the ...
1
vote
0answers
660 views

Gigabyte GA-G31M-ES2L drivers for CentOS

Recently installed CentOS on Gigabyte GA-G31M-ES2L motherboard everything works well except the graphics are a bit laggy, so I'm wondering if it hasn't got the drivers in place. Where do I locate the ...
4
votes
1answer
13k views

How to install Sun's JDK on CentOS?

I having difficult time installing Sun's JDK on CentOS. The default installing with "yum" is "openJDK", but I need to install Sun's JDK. Is there easy instruction out there I can use or any ...
3
votes
5answers
1k views

Most effective backup software for linux -> linux when dealing with large numbers of files

I have two NASes. I work off of one, and the other is used as a backup. As I have it set up now, it's slow. Running a backup takes a week. Even for 7 TB, with 1,979,407 files, this seems a bit ...
1
vote
3answers
4k views

clonezilla moving to bigger harddrive

I successfully cloned my hard drive from 250gb to 1Tb using -k1 on expert mode. but when I explore the folders, why is it still acting like a 250 gb hard drive. It is still showing that 180gb ...
1
vote
2answers
601 views

Operating system and disk format for a home server

I have a Sun Ultra 24 that I am using as a home server, with 2x 1TB SATA drives, and two other drives for my OS and miscellaneous files. Eventually, I will replace those with 1TB SATA disks as well. ...
0
votes
3answers
7k views

“-bash: line 7: dpkg: command not found” said CentOS

I'd like to use the command dpkg in my PHP script (using exec). I'm running CentOS. Is there a way I can install the command dpkg on there? Step by step guide would be fantastic.
0
votes
1answer
714 views

JRuby rpm for Centos 5.3?

Has anybody built a JRuby RPM for Centos 5.3? I know that JRuby can be just 'dropped in' and it will work on Centos 5.3, but I would like an RPM because it can be distributed, installed etc. easily ...
0
votes
2answers
431 views

Unable to establish connection to server

Working in CentOS. Want to have drag-and-drop SCP access to another system. Opened up the file manager (nautilus) and went under File -> "Connect to Server". Filed in the information, hit connect. ...
3
votes
1answer
1k views

centos Screen - command detached process

Screen supports externally controlling a detached screen with the -X parameter, for example: screen # -X -p0 "quit" That will terminate the screen where # is the screen PID. However what I want to ...
0
votes
1answer
279 views

Unable to connect to SSH using my Univ. VPN

I can connect to my VPS SSH from my home internet connection. However, I cant connect to SSH via my Univ internet connection. What I know is that my University uses VPN, and maybe proxy. My ...
1
vote
1answer
3k views

symlink and sudo executable

If I have the below sudoers entry usera ALL=(userb) NOPASSWD: /home/userc/bin/executable-file usera ALL=(userb) NOPASSWD: /home/userc/bin/link-to-another-executable-file When I log-on as usera and ...
2
votes
1answer
8k views

How to install Texlive on CentOS?

How can I install texlive in CentOS? I'm trying yum, but it has repos only for tetex. Where to search for?
0
votes
1answer
1k views

Linux: Can't overwrite files on samba store

I'm using CentOS 5.5 with smbclient 3.0.33-3.28-el5 (latest version in repo), and I can't overwrite files in my Samba store. I am not the admin for the Windows server that hosts the share, so there ...
1
vote
3answers
21k views

tar Cannot open: No such file or directory

Fresh install of CentOS 5.4 Downloaded the following: http://prdownloads.sourceforge.net/webadmin/webmin-1.510.tar.gz MD5 sum is correct (cdcc09d71d85d81914a90413eaf21d3f). The file is located ...
0
votes
2answers
656 views

Unable to start my linux (cent OS ) machine in run level 5

Suddenly my machine not working under run level 5 and it seems to be problem with xserver and it is saying that "in last 90 seconds xserver restarted 6 times and unable to start" and then just giving ...
6
votes
4answers
11k views

Writing a CPU/RAM usage log over a period of time to file on CentOS

I'm looking for an application or line of code that would let me observe a process, save the info in a number of variables, then put the gathered info on a file. I've been trying with variations of ...
2
votes
1answer
1k views

/etc/environment and cron

I've got two machines: Fedora and CentOS. And a cronjob 0-59 * * * * env > /home/me/env.log On CentOS I can see that /etc/environment is affecting the output while on Fedora it does not. I want ...
19
votes
4answers
27k views

How to view history of Yum commands (update, install, remove)?

I'm seeing some errors in my apache logs and they may (or may not) be related to some packages that I recently installed/removed using Yum. Is there a way to view the history of Yum packages that ...
1
vote
0answers
423 views

Setting up phpMemCacheAdmin on CentOS 5.5

I have been able to setup phpMemCacheAdmin (http://code.google.com/p/phpmemcacheadmin/) on CentOS and am able to view the localhost MemCache statistics however whenever I add other MemCached nodes the ...
1
vote
0answers
1k views

Problem with wireless networking

I have atheros wifi hardware, intell chipset, gigabyte laptop and CentOS 5 installed. Now I try to use wireless network and get problems. First of all I want to say that I have 2 OS on my laptop, and ...
0
votes
1answer
424 views

Couldn't dual boot Vista and Centos 5.4

Today I have installed Centos 5.4 with dual boot with Vista. Everything was fine, but after testing Centos 5.4, when I tried to load Vista, it did not load. After selecting vista from grub menu, it ...
3
votes
1answer
2k views

CentOS 5 installation - GRUB installed on USB drive

I installed CentOS via unetbootin and USB stick. Unfortunately, I can not now start my system w/o my USB usb drive. Can someone provide me with some information how to fix this? Thanks.
2
votes
1answer
5k views

Is there another way to connect to a LinkSys SRW2024 switch from CentOS?

I am configuring a Linksys SRW2024 and accidently changed the management VLAN before changing the VLAN configuration. Thus, I can no longer access it. The only way I have read to get into it now is ...
0
votes
1answer
118 views

Problems with Xen installation

I have CentOS 5.4 installed. Now I'm trying to install Xen with out connecting to Internet (I have any driver for modem, so I search on Inernet only from Windows). All I have are 7 installation disks. ...
1
vote
1answer
6k views

Find where packages have been installed using rpm

CentOS 5.3 I have been installing some packages using rpm -ivh package However, I am just wondering what command I can use to find the path of where the packages are installed. Many thanks,
10
votes
5answers
18k views

sudo access for desktop actions in Gnome/KDE?

I feel kinda silly asking this question. I'm using CentOS 5.4 and KDE. I downloaded an archive and I want to drag/drop the contents into a folder that I need root access to write to. I can obviously ...