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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550 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
15 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
28 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
12 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
19 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 ...
1
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0answers
29 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
93 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
30 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
36 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
21 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
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
35 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
79 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
35 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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0answers
76 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
37 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
27 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
75 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
70 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
33 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?
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0answers
26 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
16 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
29 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
405 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
192 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
118 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
36 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
22 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
49 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
32 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
36 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
83 views

PHP app crashes: child pid exits with Illegal instruction (4)

I have a CentOS 6 server with Apache and PHP. I run some application and can constantly reproduce this crash. After some sequential action the app dies and the only trace I found is the following ...
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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
49 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
66 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
40 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 ...
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0answers
102 views

CentOs 7 - MobaXterm - X11 Forwarding per user

I am using MobaXTerm to connect to my CentOs 7 Server. I have set X11Forwarding yes in my /etc/ssh/sshd_config file. The root user is able to start the X11-Gui for example gedit. The other users ...
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0answers
107 views

apache server-status 403 forbidden azure centos vm

I get 403 forbidden for http://testapache.cloudapp.net/server-status. Below are the following exact steps I have followed. I created a new centos vm. Then ran yum install httpd Opened ...
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0answers
156 views

CentOS 7 system wide display configuration

I have two displays, one connected via DVI and one via HDMI. I installed CentOS 7, which thinks (like every linux I've tried so far), that the one connected via DVI is the primary display and it's on ...
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0answers
37 views

Empty output file in systemd unit file

I created the below systemd unit file (Centos 7) to run KMS server and logs the client requests to the kms-server.txt file. The service runs without any problem and responses to the client's requests ...
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0answers
13 views

Networking issues after XEN guest migration

Yesterday, after mirgation of my CentOS 5.3 VPS from ISP to my own local XEN, I was a little bit complicated: after changing all network settings inside: /etc/sysconfig/network-scripts/ifcfg-eth0 ...
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0answers
22 views

Dovecot… shadow - uknown user… how do I fix this

For one user in particular I have this maillog error and the user is unable to send files using SMTP WLMX002 dovecot[1402]: auth-worker(49961): shadow(user@domain.com,X.X.X.X): unknown user How do ...
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0answers
16 views

FTP Server Allowing Public FTP Users When Are Restricted

I'm configuring FTP on a Centos 6.5 Machine, First I disabled Firewall & SELinux on Machine With Relevant Commands. Then installed FTP Via Yum, enabled service on boot & in running session ...
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0answers
46 views

CentOS not booting up after showing 5 ducks

I have been trying to install CentOS on my system for couples of days, without any success. After creating a flash drive with OS and and trying to install OS from this, it only shows 5 ducks and ...
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0answers
119 views

NFS Share on Centos 7 Fails to automount

I have a fresh install of Centos 7. I cannot seem to auto mount an NFS share located on 192.168.254.105:/srv/nfsshare from the Centos client. Mounting the share manually however, works perfectly. ...
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0answers
106 views

Install wireless usb on CentOS 7 (VMWare)

I am very new to Linux. I have installed CentOS 7 on a virtual machine using a windows host. I am wanting to install my USB wifi dongle so it can be used on the CentOS 7 guest. (My windows does not ...
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0answers
135 views

Postfix cannot start but dovecot is ok

My postfix service cannot start. Here is message: Job for postfix.service failed. See 'systemctl status postfix.service' and 'journalctl -xn' for details. And here is service status: ...