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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RPM `requires` installation order

I'm seeking for help from RPM experts. Suppose I have an RPM package A which depends on package B. RPM A's spec has Requires:B with autoprov and autoreq enabled. When I install RPM A on a centos 6.5 ...
9
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3answers
388 views

Linux user account 'nagent' deleted and re-added in secure log

The following lines appear in my CentOS secure log file: Oct 27 21:10:59 servr userdel[7270]: delete user 'nagent' Oct 27 21:10:59 servr userdel[7270]: removed group 'nagent' owned by 'nagent' Oct 27 ...
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20 views

gcc upgrade successful but gcc-c++ still not upgraded centos

gcc and gcc=c++ being detected differently for yum package installer on CentOS v6.6 I have a CentOS server and I'm trying to update the software on that server using the yum package installer, but ...
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414 views

How to get ASP.NET running on Apache on CentOS 7?

I successfully installed Apache, Mono, XSP Server and MonoDevelop on a CentOS 7 machine, basically following ...
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1answer
349 views

OpenSSL: socket: Connection refused connect:errno=111 Cent OS

I'm facing this problem.Actually I'm trying to disable SSLV3 and enable TLS 1.2 in my Cent OS production server.I found exact same question here. [root@186-aven-vps ~]# openssl s_client -connect ...
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149 views

How to create TAP device on boot in CentOS?

I'd like to have a TAP device ready to use after boot on CentOS 7. But if I create a file ifcfg-tap0, I don't know how to fill DEVICE= field because there may be no physical device behind it. And I ...
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89 views

How to enable Namespace in Centos 6.5

I followed the steps mentioned at https://spredzy.wordpress.com/2013/11/22/enable-network-namespaces-in-centos-6-4/. But it doesn't seem to help. I'm still getting this error - [root@localhost app]# ...
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1answer
26 views

FFmpeg works on CMD but gives error with PHP exec()

When i run ffmpeg on cmd it works good, i put export LD_LIBRARY_PATH=/usr/local/lib into /etc/profile.d because it couldn't fine libmp3lame at the first But when i run it with PHP exec() it still ...
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1answer
19 views

Share MacBook keyboard with CentOS Desktop

I've looked online and there's a solution called ShareMouse, which is the Mac equivalent of Microsoft's Mouse without borders. So far as I can tell there's isn't a Linux compatible way to do this. ...
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0answers
20 views

CentOS - using PXE to install it on my host ( kickstart configuration )

I am trying to install an OS from our server through PXE ( Preboot Execution Environment ). However, on my host, I have two disks say A ( /dev/sda ) and B ( /dev/sdb ) The default installation path ...
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87 views

Mysql won't start on CentOS 6.7 running Plesk

I have a Plesk server, and yesterday I tried to update it to the newest version. After a couple of tries, I couldn’t reach my Plesk panel anymore. Getting this error: ERROR: ...
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1answer
86 views

Can't login to CentOs graphic interface

My problem occur when I try to login on my CentOs 6.7 virtual machine in the GUI, the login interface is just reloaded on valid password. In the text interface, I can login with no issue. I've try ...
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0answers
102 views

Cent Os minimal installation with Fingerprint Athuntication and Fluxbox

I just installed CentOS 7 minimal with fluxbox. I want to have fingerprint authentication to login into my os. Can anyone provide me steps to do it.
1
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1answer
28 views

Why are there 2 ssh services?

I just downloaded a virtual appliance built on Debian and went to enable sshd but saw this: What is the difference between ssh.service and ssh@.service and where is sshd? I checked and ...
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1answer
23 views

Make a file drop immutable, linux

I'm trying to install a custombuild on my VPS. I got the file on it but the only problem is that I can't execute it. When I execute it an error message appears; "Cannot open: Permission denied". The ...
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2answers
128 views

CentOS 7 security updates

I have a clean, stock CentOS 7 installed and now (after a security scan) want to update packages to fix known security issues (they all have CVE numbers and some are already some time old). Somehow, ...
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27 views

the /home take too much memory 12G of filesystem,but i can only find 3.2G in /home

I run a Centos in Vmware Workstation 11,now something wrong happened and i can not find the solution. when i use the command "du -Th",the result is as followed: Filesystem Type ...
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1answer
71 views

Tuleap git plugin

I just installed Tuleap version 8.7.99.12. on CentOS 6.7. My git version on CentOS is 1.7.12.4. In Tuleap Admin panel I installed Git Plugin 4.89 and enabled it! In my project admin section I choose ...
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11 views

Trying to give permissons on a vps running centos 7

I am wondering how to give a user that I created the permissions to delete, edit, add, and change any of the files on the vps. Currently, I use winscp to do this while logged into root. However, when ...
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166 views

CentOS boots to login prompt but shows black screen after authentication

I run CentOS 6.4 inside VirtualBox on a Windows PC for work. Recently, my machine crashed while the VM was still running and had to be power-cycled. Upon reboot, everything in Windows was fine, but my ...
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0answers
41 views

Limit process ram but force swap instead of kill

I am currently quite frustrated with meteor. I am going to make my own telescope modification via the official repository on my hosting service of choice. The only problem is that meteor builds the ...
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2answers
71 views

How to manage background processes in CentOS [duplicate]

I’m using CentOS and can’t figure out how to: Show list of current background processes/jobs (which I run). How to run process in background. How to stop background’s process. My command that I ...
2
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1answer
107 views

How to set up snmpd to listen on an alternative port (other than 161)?

I am working on a CentOS 6.4 64-bit, as root. I am trying to set up the system snmpd agent, so that it listens on a port other than 161, e.g. 8001. I successfully got that on Debian 7.x by just ...
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0answers
38 views

How to install Windows 7 VM on RedHat KVM?

I'm using the Virtual Machine Manager to install Windows 7 on a RedHat 6.6 KVM. When after configuring everything I start the installation but the VM gets stuck and ends in "No bootable device." Can ...
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66 views

Tuleap 8.7 on Centos 6.6 “My Account” page blank

I have just installed Tuleap V8.7 on Centos 6.6 using the instructions at http://tuleap-documentation.readthedocs.org/en/latest/installation-guide/full-installation.html The installation seems to ...
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0answers
28 views

Diskless NFS cluster

I'm planning on making an NFS cluster for diskless clients. I understand the basics, but I'm having trouble implementing it, I have some questions regarding on how to setup the cluster. Do I need ...
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0answers
14 views

What modules and ports should I disable in Centos 6.5 Webmin to have a hosting-only (no E-mail) server?

In other words, what is the bare minimum amount of ports and packages needed in the centos/webmin to have a hosting-only server? And if possible, could you pls. add some other security tips for a ...
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0answers
64 views

kernel(security_netlink_recv) = 0x3a2204c6 is needed

I am trying to install drbd (packages are fetched from elrepo). Both drbd and kmod-drbd are version 8.4.3-1 and I am using CentOS 6.7 with kernel version 2.6.32-573.el6.x86_64. When trying to ...
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20 views

CENTOS OpenVZ Server Bridge

I have a dell poweredge 2650 running with two NIC cards. Centos 6.5 is installed, OpenVZ x32Bit has been running for months. The other day, rearranging my server closet, I wanted to utilize the ...
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114 views

Installing Centos 7 with Dell Poweredge 1800 with PERC4/SE RAID

I have a Dell PE 1800 with Perc4/SE controller - 5 SCSI drives. I need to install Centos 7 x64. Centos 6.7 x64 installs fine, but the RAID drivers have been removed from Centos 7. I need Centos 7, ...
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16 views

numpad keys mapped to letters in vim

I'm trying to get my numpad to work in vim. I'm using centOS. When I try to use the numpad, the keys are mapped to various letters: 1=q 2=r 3=s 4=t ... 9=z NOTE: I am not using PuTTY. I've ...
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1answer
46 views

Error creating an RPM

I've seen many similar issues dotted around this site but none of the seem to fit the problem I'm faced with. I've never created an RPM before so I'm completely new to the procedure. Basically, all ...
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2answers
276 views

Yum / dnf tries to remove standalone packages as dependencies

When I try to yum remove texlive it lists all the packages it will remove as dependencies 'only to texlive', but for example gcc is listed. But I want to leave it in the system. Can I somehow specify ...
1
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1answer
66 views

Need help installing program; can't get `make` to work in src directory

I've been trying very hard to get John the Riper to work. I installed it on Ubuntu and it wouldn't work giving me an error about unknown cipher. Now I'm trying to install it on CentOS. I tried ...
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1answer
41 views

Using semanage in CentOS 6.6 (Virtual Machine) but it shows “Killed” (solved)

Sorry for the duplicate, since stackoverflow won't answer the question and suggest to ask it here. I have a CentOS 6.6 virtual machine (lauched in Eucalyptus Private Cloud). I guess Amazon Instance ...
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0answers
24 views

CentOS fails to connect to the WPA/WPA2 encrypted Wireless LAN Network

I'm trying to connect to the WPA/WPA2 encrypted Wireless LAN Network.However,I faied to connect, actually the password is not incorrect but the CentOS always remind me to verify the password. I ...
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2answers
112 views

Is it safe to remove “.journal” files in CentOS?

First of all I’m a Linux noob, I just know the basics. I have a VPS running a TeamSpeak 3 server, but I’m slowly running out of space as you can see here: The TeamSpeak 3 server itself doesn’t ...
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1answer
65 views

Accidently executed wrong command in Linux that delete all files

I made huge mistake today. Actually i have to delete a specific directory files but by mistakenly i have executed the below command, rm -rf /* I think, It started to delete all file from the root ...
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0answers
74 views

No rtp: Asterisk 11 + webRTC + CentOS 6

I installed Asterisk 11 on a CentOS 6 machine and tried to run a simple js script with jsSIP for making a voice call inside my LAN. However, Asterisk doesn't seem to deliver the RTP packets since they ...
0
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1answer
16 views

storing virtual box VMs in multiple partitions in CentOS

A CentOS 7 server has Virtual Box installed, and the default location of the Virtual Machines is in /root/VirtualBox VMs. Is there a way that I can put each virtual machine in a separate partition? ...
0
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1answer
268 views

Install naemon on CentOS 7?

I am following these instructions: http://www.naemon.org/documentation/usersguide/quickstart-centos.html But when I try to "Install Naemon", I have errors: [root@ccnagios naemon-rpm]# yum install ...
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0answers
87 views

CentOS 7 TSO/GSO causing send packets to be bigger than MTU

I have some costumer with the following env: CentOS 7 on esxi in VMWare env. In the VM the MTU of the NIC is 1500, and in ESX it's bigger(with jambo frames). TSO and GSO are enabled on both of ...
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2answers
76 views

Resizing LVM partitions on a live CentOS 6 server

I currently have the following partitions: ACTIVE '/dev/vg_server/lv_root' [50.00 GiB] inherit ACTIVE '/dev/vg_server/lv_home' [1.76 TiB] inherit ACTIVE ...
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1answer
149 views

Tuleap (full) installation error yum Dependency Error (php-launcher.sh)

Trying to install the latest version, but it seems to be broken: yum install --enablerepo=rpmforge-extras tuleap-all --> Processing Dependency: /usr/share/codendi/src/utils/php-launcher.sh for ...
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vote
1answer
80 views

Transfer huge files to new server through FTP

I have a dedicated server in Germany with 120GB data, since I have bought a new dedicated server in U.S, I would like to transfer all the files to new server through FTP connection, to achieve this ...
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0answers
76 views

404 No input file specified. on VirtualBox, CentOS 6.5, Nginx

I have installed VirtualBox on my mac, and change the settings with VitualBox , Adapter 1 - Attached to: Host-only Adapter, Name: vboxnet0. and install guest addistions ./VBoxLinuxAdditions.run ...
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1answer
137 views

Bonded interface causes dropped packets

We're running CentOS 7.1 and have systems configured with dual NICs setup as a single bonded interface. When this bond is configured to use any of bond modes 1 5, or 6, we are seeing a substantial ...
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0answers
77 views

Which Debian has SElinux and Firewalld out of the box?

I am willing to learn how to work with Debian, I want to know why it is the 1st server choice compared to CentOS, although CentOS seems to use SELinux and Firewalld. I am coming from a CentOS ...
0
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1answer
212 views

Centos: vsftpd 2.2.2 - 500 OOPS: priv_sock_get_cmd

I'm very new to Linux, and I'm currently experimenting with it and several services in order to familiarize myself to it. I've installed vsftpd to access the machine over ftp however I'm getting the ...
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1answer
428 views

rpcbind not started at boot on centos 7 with systemd

I need rpcbind service to be active after boot, so I installed it with yum, then started it by: systemctl start rpcbind it works. However after reboot it did not start. So I checked it with: ...