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

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CentOS samba connection over an OpenVPN network

I have a CentOS 6 server that I am connecting to via OpenVPN and I would like to know how to get a Samba share working so I don't have to keep using ssh terminals. After I connect to the CentOS ...
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Centos 7 x64, RT3290

I use Centos 7 on Asus X550L uname -a Linux egor 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13 10:06:09 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux lspci | grep -i network 03:00.0 Network controller: ...
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1answer
11 views

Centos 7.1: how to record from audio input (not microphone)

I use centos 7.1. What application can I use to record audio input (not microphone) from sound adapter? For example I connect TV sound output to PC sound card input.
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2answers
26 views

No IP address on VMware running centos 7

I just now installed Cent OS 7 on my VMware 8 and I am not able to connect it to a network. I checked the VM network and its mapped to the physical NIC. The same setting work like charm on my CentOS ...
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14 views

how do I migrate liferay from one server to another?

I'm trying to migrate liferay to another server (both are linux machines, and I'm using the CE bundle with tomcat7). I moved over the entire folder. This is not enough, because usernames/passwords ...
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4 views

fail to start graphical.target on centos7

could not start graphical target after installing kde from minimal centos. startx works fine though. the system has two vcpus and 1GB ram. $ cat /etc/redhat-release CentOS Linux release 7.1.1503 ...
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23 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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1answer
31 views

Can anyone please help debug these ata error messages?

my Centos 6 server has been playing recently in that it seems to freeze up and lose network access. I've been getting a load of ata5 error messages in the log and after some digging have determined ...
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1answer
33 views

Ping to LAN address takes an incredibly long time?

I'm running CentOS 7 in a lab environment with one domain controller (DC - Windows 2012R2) which serves as a DNS and DHCP server as well. CentOS is joined to the domain; it can ping the DC and a ...
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1answer
31 views

Volume Group fails to recover

For the last 10 days I've been living a nightmare trying to recover my data. I'm trying to recover VG and mount it to access the data here's what I get [root@]# pvscan Found duplicate PV ...
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24 views

Exundelete can't restore the file

I'm trying to restore 2 important tar.gz files I know their directory but extundelete not restoring them although it's giving me the inode number. Loading filesystem metadata ... 2127 groups loaded. ...
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3answers
40 views

I can not install MySQL using yum on Centos7

I've installed centos7 recently, but, when I am trying to install MySQL using the command: yum install mysql-community-server I keep getting Exiting on user cancel while I am not hitting any ...
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17 views

Error in Python multiprocessing process [migrated]

I am trying a write a python code having multiple processes whose structure and flow is something like this: import multiprocessing import ctypes import time import errno m=multiprocessing.Manager() ...
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14 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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2answers
28 views

Centos 7 - Recover mysql db from data files .frm and .ibd

I have migrated my operating system from Windows to Centos 7 without getting backup of mysql through mysqldump. Now I have mysql data files .frm and .ibd . I want to migrate them How can I migrate ...
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1answer
29 views

upgrade chroot version on centOS 5?

How do I upgrade chroot release on my centos 5 server? I want to install a service that uses a new capability available in later versions (--userspec) of chroot and I can't find any documentation of ...
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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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2answers
27 views

Unable to mount Volume Group [closed]

2 drives connected externally to a new server both are merged using LVM as one drive. vgscan Reading all physical volumes. This may take a while... Found volume group "vol_grp1" using metadata type ...
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30 views

How to tell systemd to start sshd later in the boot sequence?

My sshd_config file specifies it should listen on some specific IP addresses instead of on all IP addresses. The problem is that one of these NICs doesn't come up until later in the boot sequence. ...
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2answers
18 views

Centos 7 Drivers issues on HP sleekbook 15-b001ee

I am fresh to linux and centos. I have installed centos with GNOME desktop successfully but after signing to my account couldn't find Sound and Wifi working. I have google a lot but everything is ...
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14 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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1answer
18 views

CPanel / WHM // CentOS // SELinux

The file config indicates SELinux mode is "target". Is it enabled or disabled ? Terminal/SSH says 'disabled'. But several behaviours here and there act like it is enabled. Thanks.
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30 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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26 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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10 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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1answer
25 views

TFTP times out in CentOS 7

I have an isolated server that telnets into the single device on its network and loads a file to it using the telnet command load. I am trying to recreate the functionality on another PC. The old ...
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0answers
20 views

recover lvm formatted partition

I had 2 old drives having LVM installed showing as 1 drive. They were attached by the datacenter to the new server to migrate data but they weren't able to be mounted I tried everything possible until ...
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1answer
34 views

How to format old laptop and install CentOS

I have an old laptop with Windows 7. I want to remove everything and install CentOS 7 to turn it into a server. What I know is that I should format the old OS somehow and get iso image of CentOS and ...
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1answer
26 views

how to convert video into webm format using ffmpeg in centos

how to convert video into webm format using ffmpeg and libvpx in centos I have install ffmpeg and libvpx in centos.but it's doesn't convert mp4 format into webm format. but in windows i have check, ...
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Error running startx on CentOS via SSH

Whenever I attempt to run startx on a system I have SSHed into, I get the following output: xauth: creating new authority file /root/.serverauth.6604 X.Org X Server 1.15.0 Release Date: ...
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1answer
20 views

Help about CentOS 7 apps & Driver [closed]

I'm using pc for several years but never tried Linux so I'm quite noob in this field. I'm using Autodesk maya, Nuke & will learn houdini very soon. I found that linux works faster for this apps so ...
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20 views

Problem with usb's on CentOS

I have problem to recognize my USB devices on the CentOS 5.9(Final). Here are all the appropriate commands to help me debug me problem. dmesg | grep usb usbcore: registered new driver usbfs ...
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1answer
83 views

dm-0: WRITE SAME failed. Manually zeroing. Centos 7.1 on VmWare ESXI 5.5

I've got a error when system start on 2 VM's. dm-0: WRITE SAME failed. Manually zeroing. OS: CentOS 7.1 VmWare ESXI 5.5 1-st VM has LSI Logic Parallel type for SCSI controller on HDD Datastorage. ...
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11 views

I2C driver support baud rate parameter

I have several test machines running CentOS release 6.5 (Final) and we are using Python 3.3 using the SMBus package to communicate over the SMBus (e.g., I2C). We are using the i2c-dev module. The ...
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1answer
7 views

Apache Module blocking access to FTP

I'm running a CentOs server with a lot of websites on it. The previous dev lead applied the Apache module to all domains. Problem is, now the client can't access their files in Filezilla. They can ...
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13 views

coonection time out after #puppet agent test

after executing following command puppet agent --test o/p Unable to fetch my node definition, but the agent run will continue: Warning:Connection timed out - connect(2) Info:Retrieving pluginfacts ...
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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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32 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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1answer
24 views

Configure CentOS run command prompt

How do I configure the run command prompt (the one shown with Alt+F2) in CentOS 7? It doesn't appear to be seeing my PATH or aliases.
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14 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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2answers
27 views

CentOS 6 Partitioning Root Drive

I have recently installed CentOS (into a machine with only one hard drive) and I would like to know how to Partition the main hard drive into two. As it is a fresh install there is no data to lose ...
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1answer
74 views

Cannot install gcc on CentOs 6.6

I cannot install gcc on centOs because it cannot find some files, this is the last part of the console when I execute the "yum install gcc*": --> Processing Dependency: binutils-hppa64-linux-gnu ...
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1answer
41 views

Linux Hard Drive Partitioning

I've decided to do a fresh Linux CentOS 6 install onto a small computer which I intend to use as a basic server. The OS has been installed and I would like to partition the 31gig sda drive (there is ...
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42 views

Best Window Manager for One Application

First off: I'm running CentOS light (If this is a bad choice, perhaps recommend one. I'm able to switch between distros fairly easily atm) and I don't need a complicated setup, I just need to be ...
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1answer
19 views

oddjob_mkhomedir doesn't run when logging in via SSH with Kerberos

I currently have a server which has Kerberos/SSSD/Samba to authenticate to Windows 2012 AD. In /etc/pam.d/system-auth oddjob_mkhomedir is set as below: session optional ...
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56 views

Centos 7.0 update command not working

I have just installed CentOS 7 on my PC. After install completed I tried to update CentOS using the yum update command: Downloading packages: No Presto metadata available for base warning: ...
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1answer
55 views

How can I resolve “duplicates” in yum?

In a moment of confusion and impatience, I severely damaged my OS. Here's the deal... System: CentOS 7 Problem: essential packages like SAMBA do not work, and yum will not do anything. How it ...
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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 ...