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.

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552 views

Redmine install on CentOS

I'm trying to install Redmine on CentOS 5 following the instructions on the Redmine wiki. I've gotten to the "Configure Apache to host the documents" step without errors. That links to another ...
2
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0answers
181 views

How do I install dvd-slideshow on Centos 5?

How do I install dvd-slideshow on Centos 5? http://dvd-slideshow.sourceforge.net/wiki/Main_Page I tried but only found a gui to install on Ubuntu. I'm using Centos 5, command line.
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0answers
12 views

rpcbind/nfs fails, failed to create RPC listeners, exiting

My system crashed while a script was running that deploys a pxe boot system (software is called DRBL). Now I can't get rpcbind, nfs, or ypbind to start properly. I'm chasing a series of errors which ...
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0answers
25 views

Why is my udev mounted device not staying put?

I have a computer running CentOS 7. I'm trying to set up a udev rule to automatically mount a USB drive (named 'sdb1') to /mnt/flash whenever it is connected. The udev script was not working (see ...
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0answers
21 views

Centos 6.6 box with single wordpress site - out of memory: kill process httpd repeatedly

So I have a Centos 6.6 box running as a LAMP stack. PHP 5.3.3 | Apache 2.2.15 | MySQL Server 5.1.73 This box is a VM running on XenServer 6.5, It has 4Gb memory available. total ...
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0answers
4 views

Are default zones not pre-populated following a fresh install in firewalld?

CentOS 7 / Minimal Install I want to get my feet wet with firewalld and am coming across some beginner issues. I installed it via yum install firewalld I enabled it via systemctl enable ...
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5 views

Firewalld forwarding between zones not working

I have a centos 7 kvm hypervisor running multiple VMs that are configured to use NAT networking. These VMs run their services, of which ssh is the most important for administration purposes. I would ...
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0answers
15 views

Using mail spool file for an entry in /etc/aliases gives errors in EL7

For years (with EL6 and before), I have successfully used entries like this in my /etc/aliases file: bugs: /var/spool/mail/bugs The idea being mail to a non-user can be shoved into a file for ...
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0answers
11 views

Centos 6 FTP problem

I have a VPS running CentOS 6. I've tried multiple FTP servers but the following problem keeps me stuck. I want all users to have FTP access to their own folder in /home, so I configured Pure-FTPd to ...
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0answers
7 views

Extending XFS filesystem CentOS 7 Google Cloud

I have Googled everything, and literally nothing is working. Here is df -h: Filesystem Size Used Avail Use% Mounted on /dev/sda1 10G 7.7G 2.4G 77% / devtmpfs 103G 0 103G ...
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0answers
27 views

Email not received with mail command from terminal in CentOS

I am trying to send mail with the following command: echo "Hello" | mail -s "Hello" myaddr@mydomain.com and than checking the exit status as: echo $? which outputs 0 Of course myaddr and ...
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27 views

How to receive files via bluetooth in Centos?

I've read the GNOME Help for Centos 7 in order to receive files from my phone via bluetooth. It suggests me to enable Bluetooth Sharing in Settings → Sharing, and switch Save Received Files to ...
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43 views

YUM: updating repo's GPG key

Haven't found the answer for this in docs: how often Yum refreshes the GPG key of a repo, if it was obtained from the net? For instance, I've got this repo config: [myrepo] name=myrepo ...
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0answers
30 views

Can't get usb ethernet adapter running under CentOS 6 minimal

I have a cheap usb adapter and using it on a minmal CentOS 6.7 box, when I plug in the adapter it's recognized as usb device but not as ethernet adapter, although I've loaded these kernel modules: ...
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0answers
73 views

can't save docker image: Error response from daemon: chtimes: invalid argument

i can't save my docker images, when i try to save a container, it fails: Error response from daemon: chtimes ...
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0answers
18 views

Trying to build icecc icemon, cmake can't find Qt5

I'm running Centos 7 and I want Icemon for icecc. If there is a package I can install, great, but I don't know of one, so I'm attempting to build it from scratch and that relies on cmake. My missing ...
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0answers
26 views

prelink - weird massive modification after installing zabbix-agent

I thought I knew something about prelink, but I ran into weirdest issue yesterday. I know I shouldn't use prelink, but I've noticed it is enabled on one of CentOS 6 systems under my administration ...
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0answers
43 views

clang-tidy install

I have clang installed from packages on both Ubuntu 14.07, Centos 7 and Fedoara 22. I would like to use clang-tidy but can neither find a package nor how to install it without installing clang from ...
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0answers
109 views

SMB server not working after upgrade from 3.5 to 3.6

our Windows 7/2008 clients can't access our samba server any more after the upgrade to version 3.6. This is on CentOS 6 (rpm --query centos-release reports centos-release-6-7.el6.centos.12.3.x86_64). ...
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0answers
32 views

Is there a way to interleave two filesystems of the same structure?

I have a large networked file system whose backup routine sees some file systems as higher priority than others and are given more redundancy with backups. At present those file systems are visible as ...
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0answers
45 views

How add configure to add default gateway from different subnet?

I am working in a host in LAN segment of 192.168.148.X with subnet mask 255.255.255.0. The LAN should be configured to use 192.168.128.1 as default gateway. What I normally do is to issue following ...
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0answers
25 views

Can I install a .vmlinuz-<version>.hmac for an installed kernel after the fact?

I installed a kernel from elrepo on my asus ux501jw, centos7 os. I have tried the 4.5.0 and the 4.4.6 versions. Both of them do not install the hmac file /boot/.vmlinuz-.hmac file. Concequently the ...
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0answers
219 views

How to solve [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon module! in CentOS 7?

I watched my laptop reboot after a system update and there was an error mention that caught my attention. I issued a # dmesg | grep radeon and the results were: [ 0.000000] Command line: ...
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0answers
40 views

Bash command history stops working after starting new tmux session

My bash command history stops working after starting a new tmux session. No previous commands when typing up, down, reverse search, no output from running history. I've confirmed that this happens ...
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0answers
56 views

Add AHCI to initrd on CentOS7 after installation

I built a complete CentOS7 system with lots of tools, preferences, etc in a VMware guest. Once working fine I moved it to my physical server. I managed to get grub2 installed and the bootloader now ...
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0answers
126 views

yum update glibc - ERROR with rpm_check_debug vs depsolve:

I want to update my system with yum update but I get only errors starting with these two lines: Running rpm_check_debug ERROR with rpm_check_debug vs depsolve: Then, I tried only to update the ...
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0answers
40 views

How can I tell if xfs_repair is stuck or still running?

I have a backup server with ~72TB of space. Only about half of that is used. Earlier in the week I got the following message and directly after the xfs filesystem was unmounted. Mar 15 15:15:47 ...
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92 views

Mono 4.4.0.40 on CentOS 6.7 x64 fails compilation with SigAbrt

I am trying to build the mono Source from Github. I've downloaded the latest tagged release which is 4.4.0.40. I've run the following commands: ./autogen.sh make get-monolite-latest make But I get ...
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0answers
38 views

Hostname won't resolve after setting up new server

I just completed a fresh install of Centos 7 on a PC. It is connected to the campus network, so I am not in control of the DNS server. I gave it a hostname by setting the HOSTNAME value in ...
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0answers
33 views

CentOS install - select existing partition as /

I'm installing CentOS on a system that has pre-defined partitions (XFS, created by Ubuntu 14.04 Live CD). I can select the little 500MB partition and give it a mount point of /boot no problem. When ...
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0answers
102 views

Force OpenVPN to route all traffic through one IP address (2 IPs on same NIC)

I've trying to dig up a solution for this, but all I keep turning up is how to bind OpenVPN to a particular hardware interface. Not quite what I need to do here. I run a server and I have 2 IPs at my ...
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0answers
83 views

CentOS 7 unable to cleanly umount a bind mount using rbind and rslave

The following sequence of commands will fail on CentOS 7 (kernel version: 3.10.0-327.10.1.el7.x86_64): [hidden]$ mkdir -p A B/a C/b [hidden]$ sudo mount --bind A B/a [hidden]$ sudo mount --rbind B ...
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0answers
37 views

List services with port numbers

I would like to list all installed services (especially running) with their port numbers, where they are assigned. Could you be so glad and help me with this command?
1
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0answers
32 views

Centos 6.x multi-homed routing question

I have a conundrum and would like to hear any pointers (been working on this for 2 days now, and need to get this server in to production). My "google-foo" has not been strong with this ...
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0answers
22 views

How to make printer added through CUPS show up in the default printer list on Centos

I have added a network printer with cups, I can send a test print page through the cups web interface. However the printer wont show up in the default printer menus (i.e. when you press through ...
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0answers
30 views

Monitor mirroring

I need to mirror a remote monitor from a server running CentOS 6.5. With VNC I'm able to connect to the :0 display (that it's the one it is shown on the remote server monitor) but when I change user ...
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0answers
45 views

Failed to authenticate via ssh.Centos

yesterday I was trying to authenticate via ssh "ssh demo" and return me the following error. ssh: connect to host ip port 7221: Connection refused If you need more information I will provide it ...
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0answers
628 views

mount: special device /dev/sda1 does not exist

I had a CentOS 6 server suddenly lock up on me after doing about 2 weeks of calculations for a project. Upon reboot, the machine would crash while attempting to mount the devices listed in the fstab ...
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0answers
213 views

CentOS 7 i386 Netinstall error: 'Error setting up base repository"

I downloaded the 32-bit CentOS 7 Netinstall version from http://mirror.centos.org/altarch/7/isos/i386/, and used the http://mirror.centos.org/altarch/7/os/i386/ as the repository during installation ...
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0answers
131 views

Build CentOS RPM for current git release, unsuccessful rebuild with alternate prefix

I am stuck in an effort to provide an maintain an up-to-date git release for a collection of CentOS Linux servers. I was hoping to be able to create binary RPMs that I could just have published to a ...
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0answers
42 views

How can I figure out why an HID unikey device is not being recognized by the software needing it?

I have a custom built CentOS machine. For those of you who know Vagrant, the image is at https://atlas.hashicorp.com/puppetlabs/boxes/centos-7.2-64-puppet. When I connect an HID Unikey device to this ...
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0answers
26 views

Back up script causing issues

I've got this backup script I'm trying to use and I'm having issues with it. #Setup Variables DOMAIN=domainexample.com FILENAME=${DOMAIN}.$(date +%Y%m%d) DBSERVER=localhost DATABASE=databasename ...
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0answers
62 views

CentOS 6 - Order of network interfaces when running “ip address show” command

I have installed CentOS 6.7 on new HP Gen9 server and decided to rename interfaces using udev so they are in order eth0-7 from left to right when looking at servers back (originally interfaces were in ...
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0answers
33 views

Screen wont work once monitor is disconnected

I have a JetWay PC (JBC375F3AW) running CentOS7. When it boots up everything works OK. If I remove the cable going to the DVI port and re-connect it, it wont work. The same goes if I boot the box ...
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0answers
39 views

How do I get a certificate on a server from a certificate authority server using an OpenSSL request?

How do I get a successful request for a certificate from one Linux server to a Linux server that is a certificate authority? I'm using Centos 7 on both servers on the network. I'm using an OpenSSL ...
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0answers
28 views

Identifying disk drives during RHEL/CentOS/Fedora Installation

What steps are followed in order to identify a connected disk drive during Linux installation ? I am interested RHEL/CentOS/Fedora procedures. Is it entirely depends on the Kernel package and drivers ...
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0answers
52 views

problem while using “ yum groups ”

When i am trying to use yum groups commands in RHEL 7 it is giving me following output. #yum groups list There is no installed groups file. Maybe run: yum groups mark convert (see man yum) I have ...
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0answers
75 views

VMWare Centos 7 partition Bad magic number error

I've inherited a VM image so not 100% sure how initial disks were set up. I've attempted to extend my image by 10Gb following some basic instructions & adding a partition but can't seem to commit ...
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0answers
42 views

How to keep remote directory up-to-date with local directory automatically?

Say, I have a directory A on my local machine and B on remote machine(Both are CentOS 7). I am using rsync to sync between them. But I want to track my changes on local directory and automatically ...
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0answers
27 views

Samba Share to Require Password Debugging

I've recently set up Samba on one of my CentOS 7 servers and it works fine, it allows anyone to access it as long as they are on the LAN. Now I need to set up a second share that can only be accessed ...