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

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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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326 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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228 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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847 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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608 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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20 views

git add . error on dedicated server; fatal: Not a git repository

I was able to initialize a git repo on a directory containing one of our websites, but when I try to git add . I get this error: fatal: Not a git repository: ...
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6 views

Remove or decrease JAVA Security openjdk AWS centos instance

How to decrease or remove java security level in CentOS openjdk? I tried removing the java security level but I didn't find any option, my OS is in an ec2 aws machine.
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13 views

Problems Setting Up DHCP Server On CentOS 6

I have been trying to set up a DHCP server on CentOS 6 running on an Intel NUC i7. I have installed dhcpd and am using the example dhcpd.conf subnet 192.168.1.0 netmask 255.255.255.0 { option ...
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21 views

Moved CentOS VM From One Server To Another; Networking Issues

I was running a CentOS box on a VMware server and I had to move it off to another server. Since booting up on the new server, I have been experiencing networking issues. On boot, I receive the ...
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12 views

Subversion // installed and set, but fail to connect

I aim to get my own SVN server. I installed Subversion, all had been ok. I configured it <Location /myrepo> DAV svn SVNParentPath /svn/adlsvn #For any else ...
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27 views

CentOS 7 - Rename network interface without rebooting

I'm renaming network interfaces by modifying the files in /etc/sysconfig/network-scripts. eth0 -> nic0 eth1 -> nic1 The content of the the network scripts looks like this, after modification: # ...
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17 views

How SYN and ACK packets counted by the server(Linux)

I have a question about tcp layer of linux kernel. I want, Syn and ack packages received to server will be counted. where total_syn_count and total_ack_count are variables to be defined and will ...
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22 views

“yum-config-manager --disable <repoid>” How to get repoid for centos 7?

I mistaken installed centos7 minimal. But I want to install GUI for centos7. from this link: ...
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9 views

How to remove previous version of centos7 and install fresh centos7 in Toshiba Satellite using bootable USB

My centos 7 has been corrupted. I want to install fresh centos7. When I run rpm -q kernel. It gives the following results kernel-3.10.0-123.el7.x86_64 kernel-3.10.0-123.20.1.el7.x86_64 ...
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6 views

/var/lib/puppet/state/agent_catalog_run.lock exists

after executing following command on centos 6.4 m getting below error puppet agent --test o/p: Run of Puppet configuration client already in progress; skipping ...
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31 views

CentOS 6 Include Gateway for Static IP Address

I've just set up a static IP Address for my CentOS Machine using the following settings in /etc/sysconfig/network-scripts/ifcfg-eth0 #eth0 Config #IPv4 DEVICE="eth0" NM_CONTROLLED="yes" ...
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12 views

Wireless configuration issue in centos 7

I am trying to enable usb wlan, TP-Link TL-WN722N, during boot. I am following instructions from CentOS wiki. Briefly, I modified the /etc/sysconfig/wpa_supplicant and ...
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16 views

How to mount VPS hard-drive to extend available disk space

I have an unmannaged VPS and recently and we upgraded the disk space from 200GB to 500GB. The VPS support wrote me the following message: Please take note that you have to mount the additional ...
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14 views

How to update squid proxy 3.5 in Centos 6?

Iam using Centos 6.6 with 32 bit os. Now i want to update squid proxy from 3.1 to 3.5 . Is it possible to update in centos 6.6 ? If it is possible, please tell me how to update it.
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17 views

CentOS 6.5: USB or DVD option wont show in boot menu

I downloaded CentOS 6.5 - I need this version for a particular reason - liveCD and used both Win32 Disk Imager and ISO to USB to create a bootable USB. However, after rebooting and manually bring up ...
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30 views

manjaro (xfce) menda dark theme in centos 7 (xfce)

I want 100% same look and feel of manjaro (xfce) (Menda dark theme) in centos 7. I found the theme and icons from manjaro github repo, but its not enough. The theme is not appearing properly. Still ...
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26 views

READ DMA Error after Installing CentOS 7

I have been trying to install CentOS7. After I installed it, I see the following message sporadically. ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x4050000 action 0xe frozen ata2.00: irq_stat ...
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25 views

How to enable Tcp\Ip remote connections in Centos 7.0

I am running Centos 7.0 using VMPlayer . I have set a private network shared with the host (Windows 7) . On my Centos Server i have opened a tcp listener on port 10102 . I could not connect to this ...
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34 views

I use a shell script to mount several dirs that share from IBM N6040, it works on centos6 but not on centos7

First of all ,the username、password and the share dir's path is correct, it works on centos6 ,but not on centos7 The code in the shell script like this : mount -t cifs -o ...
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17 views

firewalld isn't blocking/dropping ports for ports mapped from docker containers

I have firewalld installed and running on my machine. here are my active zones # firewall-cmd --list-all-zones ... drop (active) interfaces: enp2s0 sources: services: http https ssh ports: ...
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21 views

Saving log files in the user account /home/user when hosting mutliple sites

I'm using Centos 7 and virtual host. The sites are all working great but I am trying to save the ErrorLog and CustomLog in /home/user/www/log instead of /var/log/httpd. When I change the location of ...
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50 views

Problem Creating a tun interfcae with SoftEther VPN Client on CentOS

I'm trying to make a VPN connection using SoftEther VPN Client on CentOS 7. When I try to create a new NIC, I get this error: VPN Client>NicCreate NicCreate command - Create New Virtual Network ...
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21 views

User Mode Linux - running CentOS - recommended FS & Kernel combination

I'm trying to run CentOS6 in "User Mode Linux" - i.e., virtualization without root privileges. It can be either 32 bits or 64 bits - whatever works right. The UML kernel is distributed seperately from ...
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23 views

kickstart does not chmod a file in %post section

I have the following code executed in the %post section of a kickstart file for RHEL 6.6. echo '#!/bin/sh' > /root/add_user echo 'if [ $# -lt 1 ]; then echo "no username provided"; exit 1; fi' ...
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23 views

HAproxy wont see Apache after uninstall Nginx, why?

I have a website I need to mount and I'm doing so with an HAproxy as load balancer, 3 webservers, 1 memcached, another HAproxy and a mysql galera cluster with 3 servers. All in CentOS 7. Anyway I ...
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103 views

How to install WiFi driver in CentOS 7 on notebook Lenovo Z570

I'm newbie in CentOS. After installing (7) I can't get to work WiFi on my notebook (Lenvov Z570). Also I installed latest drivers by instruction Below diagnostic output: rfkill: [nikolay@lenovo ...
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20 views

Zpanel Not Showing Anything in Admin Screen / Reinstall / Repair Required

I was trying to update zpanel repository so ran few commands including zppy update zppy update zgodx and after that my zpanel admin area shows nothing , it's empty, no modules show, if I try to ...
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29 views

Gpgpu-sim dependencies in centOS

I try to install gpgpu-sim in my CentOS 6, there are some dependencies need to be installed before I can compile gpgpu-sim successfully. the dependencies are as follows: GPGPU-Sim dependencies: ...
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22 views

File permission issue with web server

Our project files is hosted in Linux server using root user, i tried find the user for Apache/PHP, here is what i got by running ps aux | egrep '(apache|httpd)' [root@server tmp]# ps aux | egrep ...
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13 views

Centos 7 - where is jfx library for openjdk8?

I have centos 7.1. And I installed openjdk8 and openjdk-devel8. However, when I tried to compile in netbeans my jfx application I get package javafx.* does not exist. After some investigation I see ...
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34 views

Centos 7 Slow Resolve

After installing Centos 7, I noticed that DNS lookups for addresses saved in /etc/hosts take long time, here is example: time curl -X get http://localhost real 0m0.159s user 0m0.004s sys ...
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40 views

Speed issue in copying files from one host to another

I have at home two centos boxes: Box A - centos 6.4. gui version Box B - centos 7.1. minimal version. They are connected to 100Mb router (both boxes have 100Mb network adapters). Box B has software ...
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88 views

Getting Error in Dependency Resolution during installing vlc media player on centos7?

I was trying to install vlc on centos7 using yum install vlc as root user, But didn't succeed. I think previously I install wrong repository. I am getting following error. Following is only part ...
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15 views

Add Disk Google Cloud

Sorry by my english. I have this situation: 1.create a instance, in google, this load with 10GB. 2.add (in google cloud) a disk persistent with 200Gb I need save all my websites in the disk ...
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52 views

CentOS 6.6 network connection problem always breaks down

I installed centos 6.6 about a week ago. Then I set my IP to static and it works but after several hours I always lost connection. I can ping another computer in that network but I cant ping my centos ...
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33 views

Centos 6 and postfix: Internal emails deferred / telnet timed out from SSH

The problem is, that I have a VPS with centOS 6 installed, and I can send emails to anyone, but my own exchange server, Apr 29 11:50:30 amazonnet postfix/smtp[16535]: 2B6FF3CC49A: to=, ...
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47 views

Shutdown init script is not executing on immediate reboot on CentOS 7.1

I have installed an init script to run on system shutdown with the following command /sbin/chkconfig --add shutdownExample My shutdownExample(custom script to run at system shutdown) looks like ...
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19 views

How to convert Fedora rpm file to Centos7 rpm

I new in Linux and specific in installation of rpm files I have src.rpm file rt-4.2.10-2.fc21.src.rpm (fc21 is meant for fedora) and wanna install this file on Centos 7 . How can do it and if source ...
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33 views

Unable to access localhost in Oracle VM (CentOs[Guest]) from Windows7(Host)

I'm trying to access the localhost in VM from Windows 7 64bit(Host OS), but unfortunately getting "Not Found" Http Error 404. I'm able to login to VM using Putty. Below are the work environment ...
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20 views

“iptables -L” isn't showing a rule I just added

I have issue with iptables it's not listing any newly added IPs. I tried both: iptables -A INPUT -s 188.143.232.15 -j DROP and iptables -I INPUT -s 188.143.232.15 -j DROP and service iptables ...
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23 views

centos 7 installation with customized bridge module

I have installed latest Centos 7 x64 edition in my server. I need to modify the linux-bridge module with some customized changes and use it as a default bridge module. Currently I am building centos ...
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100 views

Centos 6.6 unrecognized services during boot rsyslogd / iscsid / iscsi / mcstrans / syslog / yum-updatesd / rhnsd

Could anyone explain what is going on here, the server used to boot fine without errors and now all of a sudden services cannot be found anymore? When researching any of these errors I get no ...
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39 views

Fail2Ban: Sending Mails with CentOS 7 using postfix

I am seeking advise on how to get Fail2Ban installed and configured on CentOS7 using firewalld and postfix for sending reports. I am not in need and even don't want having a fully featured mail server ...
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38 views

CentOS 7: write failed: broken pipe when trying to reboot

Commands I've tried: sudo reboot sudo systemctl reboot Both commands just ask for my password for sudo then write: Write failed: Broken pipe Then they close the SSH connection and I can ...
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18 views

installing r8168 driver in centos 4.8

I have installed cent os 4.8 and I am not able to connect to internet from that system. After searching on the net I found that the system has r8169 driver instead of r8168. Now I am trying to ...