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

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Unable to install Atheros AR8161 Ethernet controller driver for centOS 6

I've installed CentOS 6.3. However, eth0 does not show up on ifconfig. So I figured out that I need to install alx Ethernet driver from here. Since my internet is not working, as ethernet drivers are ...
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379 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 ...
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1k 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 ...
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173 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 ...
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3k 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 ...
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94 views

Allocating resources to VPS's

I need a layman's term definition of these parameters and what they do in terms of allocating resources to servers, as I'm having issues with the VPS's that I set up, as Java seems to be unable to set ...
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267 views

Fail2ban showing error Unable to contact server. Is it running?

We start fail2ban in centos using this command service fail2ban start but when we run service fail2ban status we get as below? What could be the mistake ya? Fail2ban (pid 2810 2813) is running... ...
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165 views

iSCSI on startup

I've configure iSCSI but CentOS 6.3 is unable to recognize if on startup. Here is fstab config: /dev/sdb1 /home ext4 _netdev 0 0 Here is iscsi.conf ...
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93 views

How to install master branch of freeradius on Centos

Could someone take me through the steps to install the master branch of freeradius on a fresh Centos 6 installation?
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398 views

Editing isolinux leads to kernel panic error in Centos Live CD

I downloaded a CentOS Live CD and tried to customize features on it. The CD boots fine if I use it "as-is". If I edit "isolinux.cfg" to edit the change the title of the CD or the automatic boot time, ...
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275 views

Set default Soundcard Centos

How do I set my default soundcard on Centos/Linux? I have two soundcards installed on my system and it always detects the wrong one, upon boot.
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117 views

Naming process in init scripts

I'm trying to write an init script that will start a service that needs to have started postgresql server before. Bellow is the postgresql's init header: #!/bin/sh # # postgresql This is the init ...
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440 views

RHN Satellite scout won't push

My RHN Satellite (Spacewalk) server is having issues with monitoring. The Spacewalk Monitor Scout will not push out successfully. It always stops with a Request Expired status. I can't seem to find ...
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2k views

After install Centos 6.3 from USB, it doesn't boot

I installed CentOS on my machine from my USB. I did a minimal CentOS USB drive with UNetbootin. After I install the CentOS, when i try to reboot, it does not starts. I have only the cursor blinking on ...
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575 views

Can't launch Snort on CentOS 6.3

I have a problem installing Snort on CentOS 6.3 in a virtual environment. When I run snort - ./snort status: Running in packet dump mode --== Initializing Snort ==-- Initializing Output ...
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217 views

Multiple Sessions and 1 is slow

Setup is a Centos 6 x64 server and a Windows 7 client running putty. Multiple sessions are opened to this same server from the same client. Periodically, one of these sessions slows to a crawl and ...
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567 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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458 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 ...
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651 views

I can't find my tape library changer under centos 5 with a quantum scalar i40

i have a quantum scalar i40 connect on a centos 5 machine trough SAS interface. I fight with it since a while because the media changer does not work. I finally understood yesterday that the system ...
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315 views

ffmpeg: error while running with libx264

Main code: ffmpeg -i 2269801.avi -threads 0 -vcodec libx264 -b 900k -acodec libfaac -ar 44100 -ab 96k -ac 2 earthgirlsareeasy1.mp4 [libx264 @ 0x16cdde10]broken ffmpeg default settings detected ...
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223 views

i386 libtool conflicting with x86_64 libtool when installing Handbrake

I've been trying to install Handbrake on centos 5.8 with the help of some different guides. I'm running x86_64, and whenever I try to install packages necessary to build the binary, the arch ends up ...
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792 views

Hanging at “Running Transaction Test” when trying to install php-soap

I have here a CentOS 5 and I'm trying to run yum install php-soap but the installer hangs on and the last step is Running Transaction Test. I found out that NFS shares are the problem. See here or ...
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534 views

How can I tell if no_root_squash is enabled from an NFS client without mounting the share?

Obviously, I can look at /etc/exports on the NFS server-side to see if no_root_squash is enabled, but is there a way I can check this from the NFS client-side without actually mounting the share? ...
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5 views

ip6tables allow IPv6 traffic from OpenVPN through my VPS

I've established a fully working IPv4 OpenVPN setup and wanted to go one step further and experiment with setting up IPv6. My VPS server does not get a native IPv6 block but does have a 6in4 tunnel ...
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21 views

Combine the output of while loop into tar

I'm trying to create a script that mysqldumps all my databases, creating an individual .sql file for each database and combines the output into backup-DATE.tar.gz. I've gotten as far as being able to ...
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9 views

CentOS install spanning 2 or more CDs

I have a custom CentOS install which used to fit on 1 CD. With recent additions, it takes up more space than can fit on 1 CD. Some of our customers have old systems that aren't DVD compatible so we ...
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18 views

Linux user ssh connection disabled after execution of setfacl command

I have very little linux administration experience, after searching a lot stuff online, finally I decided that I must hope that someone helps. The problem is, I needed to share an account with a ...
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11 views

No cursor/caret in Linux VMC under Windows Hyper-V?

I have just installed CentOS-7, Minimal Installation, into a Hyper-V VM under Windows Server 2008 R2. When I Start the VM from Hyper-V Manager it opens a window it calls Virtual Machine Connection, ...
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8 views

rich rules in firewalld to log imap and smtp attempts

How can I set up rich rules in firewalld that will record what is happening when a remote Thunderbird client tries to connect via imap and smtp? I imagine that two rules might be required, one for ...
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4 views

RHEL 5 box constantly displaying NIC statistics on console screen, how can I disable this?

I have a RHEL 5 box that is constantly displaying nic statistics on the console screen when using the KVM. This makes it very hard to do any troubleshooting when the box goes down as these statistics ...
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7 views

Refresh/reinstall CentOS 7 in automatic mode remotely

Is it able to fully reinstall (with erasing disk data) CentOS 7 without physical access to the computer, only remotely SSH?
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16 views

Xvfb differences on Ubuntu and CentOS

I have an html screen capture utility built using Qt that uses WebKit. It basically takes html as input and produces a screen capture as a png. On Ubuntu desktop 12.04 the capture quality is ...
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16 views

Have CentOS push custom updates to windows 7 clients

Is there anyway do deploy updates for Windows OS desktops, from a custom source? I frequently work on computers, and installing Windows 7 with an OEM disk and waiting for my slow internet connection ...
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14 views

Centos & PostgreSQL - cannot create database cluster

I have a server with CentOS 6. I installed on it postgreSQL 9.4, but didn't tell my mate and he installed 8.4 which included in CentOS by default. So we removed (service remove postgresql) both of ...
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11 views

How to reboot OS in KRDC without command?

I cant enter the command because some app are been stucked. Ctrl+Alt+Del exit me into the Windows Logon Screen. Alt+PrtSrn+b reboot myself. What to do?
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30 views

firewall-cmd doesn't work when called through OpenVPN connection, why not?

I recently set up OpenVPN to run on a remote CentOS 7 server. Once I establish an OpenVPN connection to the remote server from my local machine, I am able to ssh through the VPN tunnel with ssh ...
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31 views

LFTP mirror includes - including other directories other than what i've included

My question: How can I make sure LFTP only includes files AND directories using --include or --include-glob, and not download a bunch of extra directories from the root of the remote that aren't in ...
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11 views

How can I configure web server with virtual hosts and serve content using tilde

Have a CentOS Linux release 7.0.1406 (Core) where I have no domain, only the IP I need to configure it so that I can use as web host and serve the content of a directory located in for example ...
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31 views

Modifying SELinux settings to allow for MySQL to run on CentOS7

I'm trying to install MySQL 5.6 on Cent OS 7 with SELinux enabled and am trying to get past the error (in /var/log/audit/audit.log): type=AVC msg=audit(1424111345.853:558): avc: denied { execmem } ...
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17 views

How to install keepass2 on CentOS 7?

I am looking for instructions on how to install Keepass2 on CentOS 7 unfortunately no luck so far. Is there any rpm available anywhere? Any info will be much appreciated!
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18 views

VirtualBox state suddenly SEEMs to have been restored to an earlier time

I have CentOS 7 installed on my Windows 8.1 VirtualBox, and file-system sized 30Gb. It worked fine until this morning, then the storage became full (due to Downloads and Projects). I tried a tool ...
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24 views

Compatibilty of the following softwares

I am a professor (Mechanical Engineering department) at a college which is making the transition from Windows to Linux. However, we are quite unsure whether all the CAE softwares that we use would be ...
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25 views

Printing via Windows Print Sharing (SMB) as AD user

I am in the process of researching a linux distro for my workplace and am currently checking to see if we are able to configure our chosen distro (centos7) to connect to our MFD printers. I am able ...
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47 views

error installing mod_proxy_html: “cpio: rename”

I am trying to install proxy_html module on a centOs 6.x server. I think it is giving me an error - but it also indicates that it completed. Here is the error: error: unpacking of archive failed on ...
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78 views

Grub environment block on Centos 7 with efi?

How do I modify the default or next-boot boot entry for the next reboot on Centos 7? I need to switch back and forth between kernels frequently. The machine is in a different room, so it is most ...
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41 views

module scsi_wait_scan not found on CentOS kernel-ml causes kernel panic on boot

I am attempting to upgrade from kernel-lt to kernel-ml, following the instructions here, however on boot the console is flooded with module "scsi_wait_scan" not found This leads to a general kernel ...
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89 views

No manual entry for man

I'm working in a Centos 6.6 Docker image. I thought I installed everything to get access to man pages, but apparently not... $ yum install -y man man-pages man-pages-overrides [...] Complete! $ ...
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40 views

CentOS rescue mode

After a power outage somehow my server is not finding the boot partition anymore. As far as I read about recovering a CentOS 6.4 I just need to pick "Rescue installed system" option from the boot ...
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21 views

Unable to get kickstart file from locally hosted http

I'm trying to get a vm up using a kickstart file. However, whenever the virtual machine initalize, it says it is unable to located the kickstart file from the location provided. Code to build vm: ...
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30 views

/installation of CentOS 7 - Anaconda Disappeared

Using VMWare and CentOS-7.0-1406-x86_64-DVD installer. I would like to install CentOS on this virtual machine. I did that successfully few weeks ago. but now, Anaconda screen disappeared so fast ...