Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [centos]

Questions specific to the CentOS Linux distribution. Use this tag if your question relates to how the CentOS distribution affects your problem; do not use it if you just happen to be using CentOS and your question is about a specific configuration detail or syntax.

1
vote
1answer
20 views

Centos Installation base environment only showing basic functions

I am currently interested in learning how Linux works. I have followed the tutorial How to Install CentOS 7 on VMware Workstation 14 Pro? The problem is, every time I install the only available Base ...
1
vote
1answer
101 views

How to enable TLSv1.3 in Centos with Apache2

I am using CentOS 5 with Apache2. Into an additional config file: /etc/apache2/conf/extra/ssl.conf I have put these lines: SSLHonorCipherOrder On SSLProtocol all -SSLv2 -SSLv3 -TLSv1 -TLSv1.1 ...
0
votes
0answers
16 views

How i can update the file yum.rep.d so i can use the yum command? [on hold]

im using an hortonworks HDP sandbox 2.5 and i must use yum,the problem that it's not working.I know that the problem is /etc/yum.repos.d/CentOS-Base.repo it seems that the mirrors used doesnt work ...
1
vote
3answers
912 views

Yum install php v5.4 packages while I have installed php 7

I have installed PHP version 7 on my centOs. Now I got an error says: undefined function mb_internal_encoding() So I decided to install php-mbstring (using yum install php-mbstring) but I face ...
2
votes
1answer
907 views

Centos 7 Managing free space from CLI

Hello Fellow Linux admins! I am hoping someone can help me with a question regarding managing free or "unallocated" space in an LVM setup on centos7. Please assume I do not have access to a GUI. I am ...
3
votes
2answers
10k views

How to install RabbitVCS on CentOS 7 & nautlius 3?

I haven't found any solution working so far :( What I've tried so far was follow steps from the manual. First I installed all required packages (at least I think so, naming isn't always the same) . ...
2
votes
1answer
1k views

enabling ipsec, ah and esp on CentOS with firewalld in place

On my CentOS I have firewalld running and my eth0 is in default zone. I use dockers for my services to communicate and in dockers I have enabled encryption. Docker creates an overlay network and uses ...
0
votes
0answers
232 views

Problems connecting to IRC server from VPS

So I'm running a CentOS 6 VPS that I've got irssi installed on. I'd like to run irssi as a permanent connection to an IRC server so I can log in from anywhere and not lose my conversations. Irssi ...
1
vote
1answer
2k views

Run Java in a chrooted jail

I'm on a CentOS 6.5 machine with Plesk Panel which I used to create a chrooted environment for a user who can access it via ssh. I managed to let him use some basic non chroot standard command like ...
0
votes
1answer
207 views

chkrootkit unable to execute by shell

I installed chkrootkit with yum (centos 6.5) sever with plesk 12.5 but I'm unable to execute it. [root@~]# chkrootkit -bash: chkrootkit: command not found [root@~]# I cannot locate the application ...
0
votes
2answers
2k views

Building from SRPMs on CentOS 6.5

I'm trying to compile Awesome on CentOS 6.5 using rpmbuild. I found SRPMs for Fedora Core and am trying to rebuild them on my CentOS install but am running into dependency issues I was hoping someone ...
2
votes
0answers
117 views

lshw HWPath priority — how to determine

I have a project here at work where I'm attempting to definitively map ethernet MAC addresses to physical ports (IE card 1 port 0 is eth0 (mac xx:xx:xx:xx:xx:xx) and a non-technical operator can look ...
0
votes
0answers
24 views

Fatal Error DISPLAY variable set incorrectly: :0

I want to install oracle weblogic server. I already downloaded it and it's fmw_12.1.3.0.0_wls.jar. In order to install it I'm instructed to run java -jar fmw_12.1.3.0.0_wls.jar. But when I run it I ...
3
votes
1answer
913 views

Setting up domain with multiple servers

I am setting up a small web hosting service for my clients. I have my dedicated server which will be the shared server to host clients websites using WHM/cPanel. I have a separate VPS server that I ...
0
votes
0answers
5 views

Touchpad click and scroll not working in centOS

I have recently installed centOS 7 on my system. [Shivendra@DESKTOP-JHII5PM etc]$ xinput list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST ...
1
vote
1answer
913 views

Create Shortcut to VMware

How would I create a shortcut to VMWare player on CentOS 7 desktop? A lot of people say it's not possible to create shortcuts on Gnome 3, I have seen it working with a special file, but i'm not sure ...
0
votes
1answer
966 views

Mail command from bash prompt returns “No mail for [user]” on CentOS 7 [on hold]

After sending mail to my user on CentOS 7, like this: $ mail -s "df" alxs < df.txt I can see the new mail spooled when I run $ cat /var/spool/mail/alxs But when I run: $ mail bash just ...
0
votes
0answers
20 views

Dual boot option now showing up with windows and centOS

I know this kind of question is already asked before, but none of those solution worked for me, i am trying to resolve this from last two days but with no success. Problem: - When i start may HP ...
0
votes
0answers
13 views

CentOS not recognizing Rackspace verbiage for saving iptables

I'm getting back into the Linux game and have installed CentOS server and am stalled with saving the iptables for Apache operation. The Rackspace guide tells me how to use the service command to save ...
1
vote
1answer
581 views

Centos 7, Freezing a (root) file system before (xfs) dumping it

I have just installed Centos 7 on my comp. My setup has three partitions root (/), /data and /home. All partitions are of the xfs type. Now I tried to do the backup of the root partition. In order to ...
3
votes
2answers
4k views

Nginx + PHP-FPM serving .php files as downloads

It's a matter asked thousand times and since I hate write posts, I read and search for all possible documentation before get to the annoying part (for me) which is writing. So I have Nginx & PHP-...
2
votes
3answers
38 views

Is there a way to save current state of network configuration in linux into a datafile or set of ip commands like iptables-save?

Let's say I ran quite a few ip commands and ended up with a required network configuration, but I didn't save the command history. Instead of rewriting commands in a file or script again, is there a ...
7
votes
4answers
559 views

How can I track script which gives me “command not found” right after the login?

When I login, I have these messages: -bash: $'\r' : command not found -bash: $'\r' : command not found -bash: $'\r' : command not found It is quite clear that it is caused by Windows-style line ...
0
votes
1answer
911 views

Cannot send email via postfix / dovecot error status=deferred (mail transport unavailable)

I am trying to setup a mail server with postfix/dovecot/maria DB on centos 7 and have seem to hit a roadblock. I am not able to send emails to internal users and the logs suggest "mail transport ...
0
votes
1answer
29 views

WHy is my Nohup process dying?

What's wrong with this code? Suddenly the nohup process dies, without a trace. bin/sh sleep 5s cd /home/minecraft/OMC nohup java -jar -Xms3400M -Xmx3400M -jar paperclip.jar &
3
votes
1answer
6k views

unable establish remote imap connection, why not?

A remote CentOS 7 web server is able to successfully receive email sent from elsewhere on the internet addressed to me@mydomain.com . An app running on the same CentOS 7 server is able to use ...
0
votes
0answers
16 views

rcp/rsync create a file with a single question mark as name, instead of the original file name

Here's are the commands I've tried (in a .sh file). rcp $1/target/$1*SNAPSHOT.jar remote_server:~/ rsync -v $1/target/$1*SNAPSHOT.jar remote_server:~/ Both of these create a file on remote_server ...
1
vote
1answer
27 views

Firefox -createprofile “example” doesn't create profile [Centos 7.6]

I am trying to create new profile via Terminal for firefox and am using this command: firefox -createprofile 'profile' It looks like everything is fine, but I can't find any new file by using ls | ...
2
votes
2answers
2k views

Centos server not updating from spacewalk yum update error

I'm trying to get spacewalk to work with our Centos 7 servers and am encountering the below error when i run 'yum update'. i have set the server up to use the spacewalk server and spacewalk can ...
0
votes
0answers
10 views

RedHat Satellite 6 to patch centos 7.5

I have a question regarding patching of CentOs 7.5 servers using Redhat satellite servers because we are trying to use CentOS for some project. I know we cannot licence CentOS but would it work ...
0
votes
4answers
1k views

“URL not found” on “yum update”

I am working on CentOS 6.7. When I install the command "yum update all", I get the following error. http://centos-hn.viettelidc.com.vn/6.7/updates/x86_64/repodata/...
-1
votes
0answers
15 views

Achieving Non-Unix Samba Users In CentOS [on hold]

I have similar requirement to that in this link: https://askubuntu.com/q/536977/402823 But I want this to accomplish in CentOS 7. Please guide how? Detail: samba users will not have active shell. ...
-1
votes
0answers
8 views

Extend /dev/sda2 Volume Centos

I added 25GB in vcenter to the vmware, i want to increase the volume of /dev/sda2 by the full unlocated space (25GB) is there a way to do this in production
0
votes
1answer
920 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 re-login ...
0
votes
0answers
13 views

NetworkManager doesn't change IP-Address when dracut.cmdline provided static IP differs

Centos 7.6 fresh installation. I need a static IP during boot for decrypting my LUKS-Container by using Clevis / TANG and following dracut.conf kernel_cmdline="ip=10.30.0.25 netmask=255.255.255.0 ...
1
vote
0answers
9 views

gnome style bottom panel on kde

I like the bottom panel on CentOS6/gnome, where the buttons corresponding to the running applications make it easy to quickly bring forward the application you want to work on, and workplace switcher ...
0
votes
1answer
47 views

EFI system partition cannot be of type ntfs, EFI system must be mounted on one of /boot/efi

I have tried to install CentOS alongside windows 10 and for this I created some unallocated space for the CentOS. While proceeding with installation of CentOS I came to stage of partition and then I ...
1
vote
1answer
5k views

troubleshooting kernel panic during boot (centos7)

Having some problems with booting in Centos 7 since the last update. The Centos 7 partition does not boot due to a soft kernel panic after the following error is thrown *ERROR* atombios stuck in loop ...
-4
votes
0answers
31 views

How to create ip profile? [on hold]

I would like to know how to create IP profiles in CentOS, because there are many variable IP addresses that are connected with my computer every day in my job. So I don't want to configure those IP ...
0
votes
1answer
914 views

varnish start failed + nginx

I did install varnish with this guide. Then I want to start it, but FAILD and I cannot start varnish. I ran it in debug mode and I got this error: No VCL Available ! What is the problem here? Also ...
0
votes
1answer
2k views

First time install CentOS 7 problem

I want to install centOS 7 along side windows 8.1 for this I'm planning to do partition in a following way. /boot - 500MB - Standard Partition /swap - Half of my RAM size /root - 20GB - ...
2
votes
1answer
948 views

why centos7 free command output available value less than free value

I ask a question, In my centos7, why available value less than free sometimes I think available value is equal to free+buff+cache, available means when start a app how many memory can use? [root@...
-1
votes
1answer
16 views

I am being returned to the user list upon 'successfully' signing in to my user account upon launching CentOS, instead of being sent to a desktop

So I'm in a Linux OS class at the moment. We're playing around with ACLs, users, groups, etc. very rudimentary stuff. I (clearly) messed something up, and I'm not sure what the issue is. Every time I ...
1
vote
1answer
833 views

TigerVNC installation on CentOS 7 (as in Red Hat System Administrator's Guide )

I want to install TigerVNC on my freshly installed CentOS 7 server, version centos-release-7-4.1708.el7.centos.x86_64. So besides other tutorials I've tried already, I followed the Red Hat guide. ...
8
votes
2answers
946 views

Whenever ansible makes changes to sshd in CentOS7 a random future play cannot connect

This has been an irritating enough problem now that I thought I would finally ask the community at large what a possible solution might be. It's even more irritating that I seem to be the only one ...
0
votes
1answer
36 views

What is the difference between install a package from source(tar.xz) & from rpm [duplicate]

Take a look at all openconnect versions & this. For install from source(tar.xz) i act like this : sudo yum remove ocserv wget ftp://ftp.infradead.org/pub/ocserv/ocserv-0.12.3.tar.xz mkdir /...
0
votes
1answer
28 views

What is the correct way to install (tar.xz) package on CentOs 7

Take a look at all openconnect versions. Now i want to install ocserv-0.12.3.tar.xz on CentOS 7 machine. I am new in linux. For install (tar.xz) package i did these commands, but nothing installed : ...
0
votes
1answer
12 views

What is the correct way to install openconnect(ocserv-0.12.3-1.el7) package on CentOs 7

Take a look at all openconnect versions & this. What is the correct way to install openconnect(ocserv-0.12.3) package on CentOs 7? I am new on linux. I tried these commands : sudo yum -y ...
1
vote
2answers
967 views

Veritus volume manager perl not avaliable

I am trying to install veritas volume manager on Centos 6.5 while running the script its throwing me Cannot find perl to execute
0
votes
0answers
10 views

Grub2 Centos 7 installation from ISO on hard-disk drive

I could not get working a grub2 custom item menu for installing Centos 7 on a VM. Actual scenario from lsblk command: 1 disk (sda), with two partitions: sda1 mounted on /BOOT, sda2 mounted on / (dev/...