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

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1answer
62 views

how to install window 10 with CentOS

If one have CentOS. How can I make dual boot with Window 10. I want to use window 10 with centOS. any solutoin
7
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2answers
86 views

Sort command inconsistent behavior

I want to sort two files but I cannot get consistent results. It seems there are problems with collation but I cannot understand the reason. In sample files separator is a single space: file1: a b B ...
0
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0answers
19 views

What are the steps to migrate from GRUB to GRUB2?

I have a fresh installation of Scientific Linux6/RHEL6/CentOS6: I have /boot with boot loader and / with all else (which are sda1 and sda2 partitions of one hard drive, on a fresh, real system). I ...
2
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1answer
61 views

n-factor SSH authentication for CentOS 7

How can I enable (and require) n-factor authentication for all SSH connections to a CentOS 7 server? I have read about Google Authenticator, which provides two factor authentication. But that is ...
1
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0answers
20 views

Which Kickstart commands and options cannot be %included?

I'm using Kickstart to automate a CentOS 7 installation and I'd like to create a common Kickstart file so I can %include it. After some testing it seems like some commands (like text) cannot be ...
0
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1answer
38 views

Error while installing Goautodial in CentOS 7

I am trying to install Goautodial on my CentOS 7. while installing i have successfully completed the following steps. Install minimal version of CentOS 5.X 64bit/32bit (CentOS 5.10 is latest as of ...
1
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1answer
24 views

“sort -h” not working in Redhat 5.9. Any way to upgrade it?

I'm trying to sort the folders disk usage in human readable format in RHEL 5.9. I mounted the drive as NFS in Cent OS 6.4, where sort -h option works fine. But in RHEL 5.9, it throws error as ...
0
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1answer
27 views

Error : segmentation fault

My centos 7(1406) giving an error "segmentation fault " while trying to connect to the wireless using nmtui. My other wireless network connected successfully. It has been connected while installing ...
0
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2answers
24 views

Insert Line in Multiples Files

I have a CentOS Server with 200 Wordpress sites and now I want to insert this line in every wp-config.php file: define('DISABLE_WP_CRON', true) I know there exist a "for ... do ... done" ...
1
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1answer
30 views

How to find and install specify package by command?

I know I am noob.... As far as I know, Linux can only install package from its Repository list. And there is plenty repository out there. After you installed/updated the repository list, you can ...
1
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1answer
23 views

sendmail attachment is empty

I am trying to include an attachment to my sendmail eml file. The current eml file (order.eml) has the following contents From: Sender <sender@email.com> To: client@email.co.za Subject: Report ...
0
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1answer
20 views

Sendmail Attachment

I was wondering if it's possible to include an attachment with sendmail. I am generating the following emailfile.eml files with the following layout From: Company Name <example@nowhere.com> To: ...
1
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1answer
28 views

How do I find available versions of package for downgrade?

I am having issues with an update of the ImageMagick package breaking 3rd party software on a CentOS 6.x server. I know that some prior version of ImageMagick worked OK. How do I find out which ...
0
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0answers
17 views

How do I track down why my system is unstable?

I am experiencing a problem where I use Chrome on my X220 with CentOS 7 (kernel 3.10.0-229.el7.x86_64). It begins when I've been surfing Chrome for a bit and have a few tabs open. Chrome may just ...
4
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0answers
34 views

USB drive offline in dmesg and ? in ls, but only for some files?

I have a backup drive that has been intermittently failing (but almost always succeeding) to run rsnapshot lately. ls and e2label output are not encouraging: $ ls -al /mnt/backup/ ls: cannot access ...
1
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2answers
45 views

How do fast Convert a .xls (MS Excel) file to .csv

How will do fast covert excel to csv. I had tried with php, perl, JavaScript. but it will take too much time. i.e for 5MB file it will take 3-5 mints
2
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3answers
49 views

login shell (bash) - how to we invoke a login shell

I know what is a login shell and the difference between a login shell and a non-login shell. But what puzzles me is how it is invoked. It is said that a login shell is invoked with a - as argument ...
0
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0answers
24 views

How do I prevent application from auto-launching when logging in via SSH

Each time I login via SSH, the Mutt automatically opens. How do I prevent it from doing so? I have compared my settings on my staging server to the live server and cannot spot the difference. vim ...
-1
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0answers
16 views

How to prevent Mutt from running at login? [closed]

Each time I login via SSH, Mutt automatically opens and when I close I see the following: -bash: :0:: command not found -bash: file1: command not found file1 is a file in my home directory. What ...
1
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0answers
11 views

Libgcrypt warning: MD5 used - FIPS mode inactivated

Last week I enabled the openSSH FIPS 140-2 module on Server "A", and that system works flawlessly (including tsql queries to a SQL Server instance). I recently enabled the openSSH FIPS 140-2 module ...
-4
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0answers
19 views

how can I install google play on centos 6.6

how can I install google play on centos 6.6 ? I tried to use https://play.google.com/store/apps/details?id=com.centossixthai.magazine.AOUAHFHTBBJCQIQTS but it was incompatible with my system would ...
0
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0answers
21 views

Centos 7 Mail log?

Previously I was using tail -f /var/log/maillog on Centos 6 When trying tail -f /var/log/maillog in CentOS 7 it says: cannot open ‘/var/log/maillog’ for reading: No such file or directory tail: no ...
0
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0answers
27 views

Internet connection proflem on CentOS and Redhat linux

I am new on CentOS and installed dual boot with windows 7. I am using a local isp internet on my windows7 system but can't access through centos. On centOS system, using the same IP, DNS, and Server ...
0
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0answers
28 views

allow non-root user to run programs compiled by root in /root/bin

I just finished and installed ffmpeg installation on a centOS box via the guide made by ffmpeg themselves https://trac.ffmpeg.org/wiki/CompilationGuide/Centos As it turns out, ffmpeg was installed at ...
0
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1answer
13 views

CentOS Apache Configuration

In the last couple days I have been setting up a Rackspace CentOS-based webserver which I took over from another developer. Amongst other things, I noticed that in the httpd directory, there were two ...
0
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0answers
18 views

SSH showing “Message from syslogd@webhost at…” after inactivity [closed]

I was logged-in on server through SSH, After few minutes of inactivity I saw following messages appeared on terminal Message from syslogd@webhost at Aug 11 08:10:30 ... kernel:nf_ct_ftp: dropping ...
0
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0answers
24 views

IPA server configuration: Cannot use ip network address

I am stuck with an error while configuring IdM server for my enviorment.I got this weird error invalid ip address 192.168.1.77 for server.example.com: cannot use ip network address Error came soon ...
0
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1answer
32 views

Start Server Remotley

I am trying to start my server remotely with this ssh root@xxx.xx.xx.xx /sbin/reboot And keep getting this back ssh: connect to host xxx.xx.xx.xx port 22: Operation timed out Why can't I start ...
1
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2answers
42 views

umask permission - where it work, where it doesn't - ftp vs scp

Src = SJOAM Dest = sjoam2 Connecting to a ftp server, get a file from it. On ftp server side. [oracle@SJOAM ~]$ ls -l total.zip -rwxrwxr-x. 1 oracle oinstall 412 Aug 8 09:03 total.zip On ...
1
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1answer
12 views

Configure scheduling to a program

The program "checking" should be autostart when the machine boot and should be start always with scheduling round robin with priority 27 in Rhel/Centos 7. I can configure this scheduling with cgroups ...
0
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0answers
17 views

Renamed mount point on CentOS 6

I have the following situation on my CentOS server. There are 2 HDD connected and mounted: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 9.9G 7.7G 1.7G 83% / none ...
0
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1answer
56 views

Centos 7: failed to bring up/down networking: configure interface for a trunk interface

The switch configured on the server (Centos 7) is configured as trunk for VLAN#115,2014. I have loaded # lsmod | grep 8021q # modprobe 8021q I would like to configure an IP address on the server ...
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0answers
26 views

How to configure fail2ban on proftpd CentOS 6.6

I've looked every forum, fail2ban official website, everything that have word fail2ban, and every config that I tried didn't work. After reaching maxretry that I setted in jail.conf the user don't ...
0
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0answers
29 views

FIPS integrity test failed

I recently enabled the fips module in my CentOS 6 machine using this guide. During reboot, the system halted with this error: SELF TEST FAILED (/usr/lib64/hmaccalc/sha512hmac.hmac) dracut: FATAL: ...
0
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0answers
23 views

yum update conflict rubygem-passenger-native-libs from passenger repository vs centOS updates

yum update on a puppet dashboard throws up following error. How do we resolve it safely? Error: Package: 1:rubygem-passenger-native-libs-3.0.19- 1.el6_1.8.7.352.x86_64 (passenger-centos6-x86_64) ...
0
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1answer
94 views

Install nginx 1.8 on Centos 7

I'm trying to install nginx 1.8 on Centos 7. I tried the following steps: Install nginx repo from http://nginx.org/en/linux_packages.html wget ...
0
votes
1answer
50 views

Executing command in a script as other user takes 10-15 seconds before execution

I start a bash script (synchronously from java as glassfish user) wich start a command as an other user (let's say myUser): #!/bin/bash echo myPassword | su -c "command" myUser & When I start ...
1
vote
1answer
82 views

Bash script (with a java command) does not exit (script 2)

I start a bash script (synchronously from java as glassfish user) which triggers another bash script: Script 1 executed from java: #!/bin/bash #Start script2 as myUser on myUser desktop echo ...
1
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3answers
108 views

yum update on CentOS 6.6 fails

I have CentOS 6.6 running on VirtualBox w/ NAT. I am behind a proxy and have configured my proxy settings; the virtual machine is talking just fine to the internet. When I attempt to install ...
2
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2answers
62 views

is a script, program being run under current shell or child shell?

I am confused with regards to the following - if i execute a script or run a program in the current shell by typing on its name 1st) it search in the $PATH variable, to find the location of the ...
0
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0answers
15 views

How to Configure freepbx and Matrix Eternity on PRI Line?

I need a to configure freepbx with matrix eternity on a PRI line and setup 12 seats for making calls outside. Matrix Eternity Device is ...
0
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0answers
39 views

Latest Mono, XSP and Mod_Mono throwing error when executing mod-mono-server2

I have installed the following versions from source on Github (tagged releases) mono 4.0.3.19 mod_mono 3.12 xsp 3.0.11 Everything appears to install OK but when trying to Start apache I get the ...
0
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0answers
47 views

Using CentOS as a thin client

I have about 50 desktop PCs running CentOS. These will be used as "thin clients" for users to access their real desktops (VMs) using some flavor of NX technology. So, the PC on the user's desk is a ...
0
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1answer
39 views

CentOS 7 'No matching Packages to list' for man

As part of my test environment I'm running CentOS 6.6 in one VM and CentOS 7 in another. They are both relatively fresh installs, running Puppet. However, when I run yum list man on the CentOS 7 box ...
0
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1answer
78 views

Listing the packages in a package group on CentOS 7

I'd like to see which packages are in the YUM group Desktop on CentOS 7. I am aware of the yum group info command, but it does not list any packages for the Desktop group. Why not? When I run yum ...
0
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1answer
159 views

Getting Minor Version Mismatch Error with Php and Mysql

I randomly started getting this error when trying to instantiate a new mysqli instance in php script: mysqli::mysqli(): Headers and client library minor version mismatch. Headers:50541 ...
0
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1answer
60 views

CentOS 7 Live - Read-only file system error

I am loaded a CentOS 7 Gnome Live USB. I wanted to do some operations on it without touching the installed system on the computer, because I only want to try some things. I installed openssh-server ...
0
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0answers
32 views

Django WSGI setup causing permission denied issues

I'm new in the world of Django. I've been working on setting up WSGI to serve my Django project. It is working fine on my personal machine but on the server I'm having a hard time to setup. I'm ...
0
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1answer
77 views

Run CentOS 7 live from USB

I downloaded CentOS 7 from http://mirror.yourwebhoster.eu/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-1503-01.iso and put it on to an USB. But when starting the computer with the USB in it, I only get ...
0
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0answers
15 views

Centos7 starting very slowly?

My Centos7 starts very slowly. I do not know what is the cause. This problem appeared after I upgraded it to a new version. Can you, please, help me solve the problem? If more details are needed I ...