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

learn more… | top users | synonyms (2)

0
votes
3answers
28 views

What should the permissions be for website files?

I've locked down my CentOS web server so root can't SSH in. My website directories, and files are owned by root. So when I upload files, it's a two step process. I upload them with WinSCP to my /home ...
0
votes
0answers
17 views

AWS EC2: Attach ebs volume fails

I'm using a script that uses Amazon EC2 CLI to create ebs volumes from other instances snapshots & attaches them. The failure happens after creating the volumes - sometimes the attach fails. This ...
1
vote
0answers
25 views

Cron job running at 12.00 AM despite changing its time

I have only one cron configured in cPanel for WHMCS to run once per day at 12.00 AM. The cron sends daily activity logs to my email. A problem came up recently in which cron job activity logs sent ...
0
votes
0answers
10 views

Putty not asking for Two Factor Authentication Code

I'm running a CentOS 7 server. So I've installed Two Factor Authentication with Google Authenticator a while back and all was well. However I can't access my server at the moment over SSH. PuTTY and ...
0
votes
0answers
11 views

Separating SAS from SATA drives

I have to list all SAS drives and separately list all SATA drives, I'm working on CentOS6 and tried lots of commands which will give some specific information about bus of disks. Let me show you ...
1
vote
2answers
29 views

How to map a sata device name to a physical sata interface for RAID systems

I have a system with 10 SATA ports, and another SATA as the boot disk. The 10 SATA ports make up 5 software RAID1 arrays. The RAID disks may be removed between boots, and swapped in with arbitrary ...
0
votes
1answer
49 views

Install FreeRADIUS - talloc library not found

I'm trying to install the latest FreeRADIUS on CentOS 6.6. I'm getting this error: [...] checking for _talloc in -ltalloc in /opt/lib... no configure: WARNING: talloc library not found. Use ...
0
votes
1answer
72 views

ubuntu Kernel panic while installing CentOS 7 in VirtualBox

I have a laptop with Xubuntu desktop 14.10 , and I installed VirtualBox and updated it to the latest version . I'm trying to install CentOS 7 (source downloaded from the official site) as a VM, ...
0
votes
1answer
112 views

Big trouble : rpm empty db, install V3 RSA/SHA1 Signature, key BAD, YumRepo Error

I'm little tired because I have spent hours solving problems, and can't find a solution on Centos 6.6. I have many troubles: rpm db is empty: try googling, find restore process, but always empty ...
0
votes
2answers
65 views

How to install thunderbird 31.4 on centos7

I'm trying to install the thunderbird 31.4 on centos7. What I done: Downloaded from that link: Thunderbird Page tar -xvjf ..... cd thunderbird; ./thunderbird The error: bash: ./thunderbird: ...
1
vote
1answer
37 views

How can I have a bridge that uses DHCP?

I have set up a linux box (centos 7) to use for virtualizing some servers. I have set up a bridge, but I need to do it with DHCP, but it doesn't seem to like it. The reason I need DHCP is because ...
2
votes
2answers
36 views

Why does CentOS notifies me “Login with home=/” althought home directory is created already?

Let me clarify my question. I have a CentOS 6 virtual machine, with /home directory mounted on a logical volume (formed by 2 virtual HDDs). I used this command to create a new user named user03 ...
1
vote
1answer
33 views

Cannot update new kernel for CentOS 7 although the server have space enough

I try to update kernel on my CentOS 7 but the yum say there is no space enough on /boot although /boot have 343 MB as show below: Filesystem Size Used Avail Use% Mounted on /dev/sda2 477M 105M 343M ...
1
vote
2answers
110 views

how to install kdm on CentOS 7

I installed CentOS 7, first I installed group "KDE Plasma Workspace", then I installed "GNOME Desktop", after that, I found only gdm existed. and which kdm returns nothing, yum provides kdm only ...
0
votes
2answers
34 views

CentOS server to be used to internally issues

I have a CentOS 6 server here in our IT dept. and I want to install Nagios on it for some more network and enterprise insight. It has a internal IP that matches the network scheme as well as a ...
1
vote
2answers
42 views

Get current timezone on Centos 7

On previous version of centos , i used the following command to get the current timezone in my bash script timezone=$(sed 's/ZONE=//g' /etc/sysconfig/clock) Output is "America/New_York" How can i ...
1
vote
2answers
21 views

Common user to modify files owned by 'other' users

I would like to understand how to use the permission system in CentOS to achieve the following: The system has the following users: user1 user2 user3 And the following directory structure.. ...
0
votes
0answers
11 views

kvm console not working at login [centos on centos]

When I run the following $su $virsh console myvm I keep getting login incorrect , even though I'm typing the correct password. In fact, it does work if I use virt-viewer. What could it be?
0
votes
0answers
20 views

Why I am getting this dependency error?

I try to install Shibboleth service provider to Centos 7. However, I get this error: Error: Package: shibboleth-2.5.3-1.1.x86_64 (security_shibboleth) Requires: ...
1
vote
0answers
32 views

Apache2 'Server' header reports wrong openSSL version

Does anyone know where the Apache 'Server' header pulls the openSSL version from (file location/directory)? I am expecting openssl-1.0.1j but apache is reporting openssl-1.0.1g (system's openssl ...
0
votes
2answers
19 views

Creating and mounting a new file system on CentOS

On my CentOS machine I have to create a new partition/file system, not sure which one I need to be honest I am a little bit confused about it all. If someone could explain it and walk me through it ...
0
votes
0answers
39 views

OVH with cPanel - Server boot failure - plymouth not found, no loopback

I have a problem with a server of mine. After initializing a reboot through OVH Manager, the server won't reboot. Only rescue-pro mode is working. Server admins on their side told me "the server gets ...
12
votes
2answers
798 views

Is it good to have multiple version of Linux Kernel?

Once, I was installing some kernel patches & something went wrong on a live server where we had hundreds of clients. Only one kernel was there in the system. So, the server was down for some time, ...
1
vote
1answer
52 views

use different java version to run two programs

I installed two JAVA JREs on my new CentOS since Cassandra needs java7u25 or later while iReport needs to work with 1.6. Now how do I launch each program from command line telling each program which ...
0
votes
1answer
98 views

Centos 6.6 can't install couchdb from EPEL repository

the issue is about unavailability of couchdb package in EPEL. Has somebody faces the same issue? yum repolist gets Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached ...
0
votes
0answers
22 views

bulk httpd process increase load average

Need help regarding server Load. Facing a lot of httpd request in just 10 to 20 seconds and server load average is increase to 115.148.127 and it looks like apache crash or server httpd process is ...
0
votes
1answer
24 views

What is the difference between these three java installations?

yum install -y java-1.7.0 yum install -y java-1.7.0-openjdk.x86_64 yum install -y java-1.7.0-openjdk-devel I have referred few more and this Link. There is a comment openjdk.x86_64 ...
1
vote
1answer
46 views

Enable 1440p on CentOS 6 (VirtualBox Guest)

I'm attempting to increase my resolution to 1440p on an existing CentOS VM. Currently, the display options only show up to 1080p under CentOS (guest OS, screenshot here), but I am able to run 1440p on ...
0
votes
1answer
9 views

Problems using screen magnifier

I have just started to learn Linux (Centos). I have a visual impairment and I use a screen magnifier to work In my windows laptop, I have been using the Ease of access centre's magnifier. I am ...
0
votes
1answer
32 views

Create folder as Apache with user add Centos

I have a windows drive that's mounted onto my Linux server. PHP and Apache web server needs to create folders on the windows drive with (mkdir) but I get permission error. I have mounted my windows ...
0
votes
0answers
40 views

How to install elegance-colors Gnome shell on Centos 7

Hello guys anyone here have success on installing elegance-colors Gnome shell on Centos 7? I have followed the steps on here https://github.com/satya164/elegance-colors but when i type "Make" it ...
0
votes
0answers
50 views

Cannot connect to CentOS 6.5 server with Ubuntu and rdesktop

I am working with a remote server with CentOS 6.5 and I have ssh access to it. Since I need to work with some graphic stuff (mostly testing webpages) I needed a rdp access to test and install a few ...
0
votes
0answers
61 views

Dual boot windows 8.1 and Centos 7 on seperate drives

I want to create a dual boot pc with Windows 8.1 and Centos 7. But i dont want to install both OS on the same drive. I have two SSD's. I want to install windows on the first SSD and Centos 7 on the ...
2
votes
1answer
114 views

RHEL 7 (CentOS 7) security / ssh / sshd_config advise requested

I am not a sysadmin and try to create a more or less secure web server (LAMP based CentOS 7). I read several tutorials about setup an initial CentOS 7 droplet and got everything running fine. ...
1
vote
1answer
32 views

Iptables rules for remote mysql server

I have a local mysql database on a centos server which causes a lot of load because there are a lot of queries made towards it. I want it hosted on its own server but i dont want every single ...
0
votes
0answers
23 views

Dual-boot Stella distro in UEFI mode

I want to dual boot stella distro with windows 8.1. Stella is a desktop focused, Gnome2 based Centos 6 remix. Can i dualboot stella in UEFI mode? How can i do that? Thanks.
0
votes
0answers
37 views

Pgbouncer is running, but cannot connect

pgbouncer started using "pgbouncer -d -v pgbouncer.ini" pgbouncer.log file: 2015-01-19 11:37:46.415 24708 DEBUG parse_ini_file: [databases] 2015-01-19 11:37:46.415 24708 DEBUG parse_ini_file: ...
1
vote
1answer
76 views

Bridge does not get IP via DHCP at boot

I'm running CentOS 7. I'm not running NetworkManager, and I've actually uninstalled it. My system is supposed to acquire an IPv4 address via DHCP on br0 at boot. Howver, when I log in, it has no ...
1
vote
0answers
21 views

how are runlevels from CentOS 6 chkconfig translated for CentOS 7 systemctl?

How would I translate the following command from CentOS 6 to run in CentOS 7? chkconfig --level 345 dovecot on My first guess is to type the following instead: systemctl enable dovecot But ...
1
vote
1answer
21 views

can i get imap access using just postfix and mailx?

I have postfix and mailx installed on a CentOS 7 server. I am able to send and receive email from the command line using the mailx command. I am also able to read email in each user's inbox using ...
0
votes
0answers
35 views

How to install evince on CentOS Linux release 7.0.1406

On my CentOS Linux release 7.0.1406 the PDF reader doesn't render image colours correctly that's sent from MacOSx/CS Adobe Acrobat. Is there a way to install Evince with Yum on this particular ...
0
votes
2answers
30 views

Exim Systemd Service Times out

I have compiled EXIM from source and am trying to get it to run as a service on Centos 7. I created my own exim.service file. The EXIM process starts when I run systemctl start exim but systemd ...
0
votes
0answers
60 views

installing Centos 7 and configure RAID 10

I had a system with 4x500GB HDD and a 16GB pendrive. I would like to build a homeserver with RAID 10. Currently i use nas4free. But i am planning to setup a local file server as well as a webserver. ...
1
vote
0answers
32 views

Ananconda kickstart

I am trying to use packer to build a virtual-box image using kickstart however the ananconda install fails due to lack of installation source and no software selection my kickstart script is shown ...
2
votes
0answers
25 views

How to access KVM guest console without password?

How can I configure a KVM guest running CentOS to allow passwordless console access from the hypervisor? I want to be able to use the following command to log straight in to the VM from the hypervisor ...
0
votes
1answer
94 views

How to disable automatic updates in CentOS 7?

CentOS Linux release 7.0.1406 (Core) / Linux 3.10.0-123.13.2.el7.x86_64 Last week, I noticed that when I tried to restart, there was an option to Install Updates & Restart. I do not recall ...
0
votes
1answer
46 views

What does EL5 and EL6 means in term of packages?

I am new to CentOS and I am using it because Citrix XenServer is running on it. [root@xen01 shm]# uname -a Linux xen01 2.6.32.43-0.4.1.xs1.8.0.855.170800xen #1 SMP Mon Jul 21 05:12:35 EDT 2014 i686 ...
0
votes
0answers
32 views

Is there a “supported” way in RHEL/CentOS 7 to union-mount a directory tree on top of an NFS mount point?

I have an NFS share containing almost 500 chrooted (s)ftp user's home directories. This NFS share is mounted on several FTP servers forming a highly available FTP cluster. I would like to enable ...
0
votes
0answers
35 views

Linux Kernel Panic and Problem with boot

I have installed CentOS 6.4 on VmWare Workstation (Win 8 as Host OS). I worked with it for several days, but suddenly when I rebooted it, it did not boot properly and on stopped with this error : ...
-1
votes
3answers
97 views

unable to view postfix email from centos 7 command line, why not?

I have postfix installed on a development box and I used the parameters from this other posting to configure postfix to work on localhost only. But the other posting does not explain how to send ...