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.

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Used 4 primary partitions, now need to add more space

I currently have CentOS 6.5 running on a VM in a live environment. The need to increase space has arrisen several times, and after following guides online it has worked successfully until today. ...
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13 views

Install CentOS 6 (Red Hat 6) documentation locally

I vaguely remember there was an option to install the documentation available at https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/. Things like "Deployment Guide", etc. I'm ...
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2answers
209 views

cPanel MySQL 5.5 Server keeps crashing (lots of errors + warnings)

I have a dedicated server (not a VPS/VM) running x64 Centos 6.5 Final + cPanel. The machine has 16 GB memory. I run a game server on this server (which uses MySQL as the back-end for data store). I ...
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1answer
746 views

Kernel panic while installing Centos 6.5 from USB stick and USB cd rom

I tried to install CentosOS 6.5 using CentOS-6.5-x86_64-LiveCD as a source. I made bootable USB using YUMI (later LinuxLive USB creator) and booted but got the following error: i915 0000:00:02.0: ...
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1answer
125 views

linux centOs 6.3 GUI freezes with “tpm_tis error”

All of a sudden(1 yr after install), My CentOS 6.3 has frozen after getting into GUI mode. Just after the GRUB boot manager switched to run the OS, I saw the error message "tpm_tis 00:00: ...
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2answers
68 views

Unable to connect with SSH externally

I have a CentOS vm at work where I can SSH to it locally with it's local IP address, but when I am outside the office, I'm unable to SSH using it's external IP address. It is using OpenSSH. I have a ...
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0answers
795 views

Dual Boot Centos 6.5 and windows 7 using USB Stick

I was trying to dual boot my system with Centos 6.5 and Win7 using usb stick. Win7 was already installed. I created a partition of 100G from Win7 for CentOS 6.5. I created a bootable disk using ...
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1answer
90 views

Will CentOs 6.5 be compatible with Redhat certified motherboards?

I am building a lot of machines these days running CentOs, but recently I ran into serious compatibility issues with various of motherboards where CentOs ain't happy. At first I had problems with a ...
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53 views

Whats the SysV commands to initialize and start X2goServer?

I need SysV instructions for CentOS. The Archlinux wiki page on X2go has a great step-by-step overview for starting the X2go server, but that's not relevant to SysV. The current maintainer (?) only ...
2
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1answer
215 views

VMware VM with CentOS latest too slow while try to access PHP sites through browser

I have a instance of VMware Workstation 10.0.1 running in my PC. My PC has this configuration: Proccessor: Core i5 3120M Memory: 3992 MB OS: Windows 7 Ultimate, 64-bit 6.1.7601, Service Pack 1 The ...
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33 views

Home FTP storage

Now i have a router Asus RT-N56u and a USB Disk (Samsung M3 portable) for my daily website backups. I am doing compressing with tar for every site folder then sending it via NCFTP to my home usb disk. ...
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2answers
52 views

bzgrep -H pattern file.bz2 gives no filename, but “standard input”

I thought -H always should print filename before matched line. this is true for grep, but not for bzgrep: $ grep -H pattern file1 file1: data pattern data $ bzgrep -H pattern file2.bz2 (standard ...
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1answer
147 views

Configuring email on a CentOS server for proper sending

I have a CentOS server that hosts a public website containing a contact form. That contact form calls a php script that sends a mail. If I send a mail to certain domains I get errors like this : ...
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1answer
30 views

Best email server for CentOS? [closed]

I want to install email server on my CentOS server but just don't know which email server is the best. Any suggestion? I have option to use Google Apps or Outlook email servers but I should install my ...
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0answers
159 views

Broadcom BCM20702A0 on CentOS 6

I'm trying to get my broadcom BCM20702A0 bluetooth 4.0 dongle working on CentOS 6. I've installed bluez but it's not seeing the device. lsusb returns this: Bus 002 Device 003: ID 0a5c:21e8 Broadcom ...
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1answer
226 views

sporadic network timeouts detected by 1 or 2 nagios instances not making sense

I'm working for a small company as a linux and DB sysadmin. Since this is more commodity hardware I thought I'd try superuser first. We've been having odd networking problems occasionally and ...
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2answers
105 views

SCP is very slow

I am renting dedicated server in a leaseweb and trying to transfer tar files from leaseweb's server to my HOME NAS, but the problem is - max upload speed i get is 180kb/sec, though when i try to ...
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3answers
4k views

kernel panic not syncing attempted to kill init pid 1 comm init not tainted — CentOS 6.3

I have a CentOS 6.3 VM running and I got the below error message after I did lvm group rename and rebooting (Selinux running) vgrename vg_name1 vg_name2 reboot The error message is : ...
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182 views

execl: couldn't exec `/bin/sh'

I accidentally moved the whole bin, boot, dev and etc directory. After moving everything back I get the following error email from various cron jobs: execl: couldn't exec `/bin/sh' execl: No such ...
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1answer
89 views

Who starts updatedb process and why it uses 700+% CPU?

I have a VPS running CentOS, and recently its CPU usage goes over 700% for two times already. It always turns out to be a process named "updatedb" (as show in the figure below). After a quick ...
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2answers
1k views

Is it possible to put UFW on CentOS?

If so, how would I do it? If not, is there an easier way to set some basic rules on CentOS other than iptables? I'm more of an app developer and less of a sys admin.
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28 views

How to delete Exported folder (SSH)

I have used command: export TMPDIR=$HOME/tmp Now it created /tmp folder in my root directory (root/tmp) How can i delete it?
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2answers
66 views

Where should I install my app on Linux?

We have some data import tools we've written in-house and I need to set them up on a new Linux box. These are written in both Java and .NET (running on Mono) and they comprise binaries, config files, ...
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50 views

Is it possible to have a proxy Freeradius Server and Log users

I have a normal router in my home and I want to use FreeRadius. I want to make a proxy in my system any traffic from any devices connected to the router must flow through my PC. Also. that should be ...
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1answer
30 views

Which package contains the `most` command

I feel extremely dumb for asking this, but: On CentOS, which package should I install to have the most command (a really nice pager)? A google search turns up way too many irrelevant results. A ...
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1answer
77 views

Find and delete line in .htaccess file

I am trying to figure out how could possible a command do search and delete line from .htaccess file . the following line is the line i want to search and delete RedirectMatch ...
2
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1answer
167 views

“chmod -R 777 /” for a few seconds - now what?

On Centos 6.5 I accidentally typed chmod -R 777 / Ooops. I CTRL + C'ed out of it very quickly, but not before it'd started working away for a couple of seconds. Consequences? Well, already su ...
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1answer
53 views

Unable to write to WD external hard drive from centos 6.1 system

I have a WD 2.5 T My passport ultra external USB drive. I attach it to centos 6.1 system on lenovo E430 laptop. The centos has the latest ntfs-3g packages. The external drive is recognized and its ...
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65 views

How to properly configure and use LXC through lxc-tools (NOT libvirt) on Red Hat based distros?

I am currently learning all about LXC. No doubt there are excellent tutorials about it. The tutorials/guides take one of the following approach: LXC on Ubuntu/Debian etc. using lxc-tools OR LXC on ...
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1answer
90 views

Mapping IP address to local Webserver

im currently lost as to why i can't properly map my website.. here is the situation.. my website is currently hosted on a local webserver running as Guest OS on Virtual Box. im running a CentOS ...
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3answers
46 views

Setting up a local webserver using CentOS on VM

im new here, and basically new at setting up a webserver... now im already googling, and searching here in stackexchange on how to setup a webserver, they tend to direct me to a working server.. i ...
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3answers
443 views

My Internet access stopped working after restarting CentOS Linux

I have given static IP on my Vmware CEntoS virtual machine. My internet was working fine. but after restarting machine This is my ifcfg-eth0 file DEVICE="eth0" NM_CONTROLLED="no" #ONBOOT="no" ...
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1answer
511 views

CentOs localhost only work when connected to internet

I have been trying to solve this problem (on and off) for three months, but still can't get it to work or even understand it why it happens. THE SCENARIO: I have a VirtualBox installed in my {HP ...
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0answers
48 views

How to Create Yum Cache Server for client machines in LAN

Like in Ubuntu we have the option of creating "Ubuntu update cache server" which downloads and update packages directly from internet and serves other client ubuntu machines for installing/updating ...
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2answers
280 views

Which keys to use to copy and paste inside CentOS guest on MAC

Which keys to use to copy and paste inside CentOS guest on MAC. I am using VirtualBox on my MacBook Pro running CentOS 6.5 as a guest... I am trying to copy and paste some text in centOS (the guest) ...
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2answers
51 views

Format “yum provides” output

I am writing a little program that packages configuration files as rpm, and it puts a series of %triggers to handle installation/upgrade of the packages that bring a copy/version of the same file. I ...
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0answers
263 views

Trying to get a GUI working on CentOS 6 VirtualBox

I've been at this problem all day and I can't for the life of me figure out what's going on. 1) My objective is to get PyCharm (an IDE) working on my Linux CentOs 6 VirtualBox running on my Windows ...
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2answers
185 views

CentOS $chmod a+w /etc/sudoers command not found

I am very new to CentOS and I am trying to edit my sudoers file. First I am told to run the following: $chmod a+w /etc/sudoers and right away I hit an error: bash: a+w: command not found What ...
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0answers
68 views

iptables not forwarding vbox traffic

I have a vbox vm that i would like to give unfettered internet access to, and i have found instructions on how to properly forward traffic using iptables, as well as the recommendation that the vm ...
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0answers
26 views

Making a tunnel VM with centos 6.5

I been thinking about this and I would like to hear from other superusers and SA... At my new job I have to access a number of servers over 20 lets say to make it easy.. I setup VirtualBox on my ...
0
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1answer
70 views

How to ensure version 5.5.* for mysql with puppet?

How can i ensure that the latest patch version of 5.5 will be installed by the yum installer under CentOS? class { '::mysql::server': package_ensure => '5.5.*' }
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31 views

VBox's full screen not working with a OS X host and CentOS 6 guest

I'm running the latest VBox (4.3.8) on an OS X 10.9 host and CentOS 6 guest. I've sucessfully installed the guest addons, but when I enter full-screen mode, the desktop doesn't resize to fit the ...
0
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1answer
915 views

lv root drive full, how to extend partition? (centos)

my lv_root drive is full, i believe its 50gigs, i could not find an option to extend it when i installed centos.. i have installed a second drive where I have my /var/www which mounted fine How ...
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1answer
77 views

Able to copy folders but not files to directory

I am currently using CentOS 6.5 and trying to share files over a samba share. On the other machine is Windows 8 x64. I am able to transfer folders from Windows to CentOS over without issues but ...
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1answer
37 views

Disable NIC on CentOS

I have a server running on CentOS 6.5, the server have 2 NICs, and it happen sometimes when I reboot to pickup the a different NIC, I am trying to completely disable eth0 and the NIC linked to it. ...
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18 views

restrict runlevels at Boot Time

How can I restrict changing the runlevels at boot time, to be only changed by the root. grub append> ro root=/dev/VolGroup00/LogVol00 rhgb quiet 3 I am running CentOS 6.5.
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244 views

CentOS can't ping port 8080 on a Mac server

I can't ping a Mac server at port 8080 from a CentOS machine, but I can ping that Mac server from any other machine, so the port is definitely open. Where should I start looking for the issue? Totally ...
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0answers
35 views

Restrict user to only limited set of commands

I have a user "user1" and I want to limit this user access to some specific folders and allow him to run a limited set of commands, on of the commands is root level.
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2answers
178 views

wget error 400 CentOS

I have problem with calling wget command in CentOS 6.5. Im using following command: (I spaced the https, because of my user level on thi forum) wget --certificate=/root/o2key.pem ...
2
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2answers
85 views

How to create a deployment image of altered CentOS?

So, I managed to install CentOS 6.5 on a client PC, and then, continued by tweaking a lot of its stuff (such as adding samba and kerberos stuff, joining the CentOS PC with Active Directory, removing ...