CentOS is a Linux distribution standing for "Community ENTerprise Operating System" and is a rebuild of "Red Hat Enterprise Linux" (RHEL). The "CentOS6" tag refers to versions 6.x of CentOS.

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1answer
20 views

How I can change all symlink to the new path

Please, I want to change the symlink to the new path My symlink's in this form lrwxrwxrwx. 1 s01 s01 56 Mar 22 13:17 zmjppcxlpq2m.png -> /home/s01/public_html/cgi-bin/uploads/00029/zmjppcxlpq2m ...
2
votes
2answers
69 views

Linux: sssd cache not being cleaned upon server reboot, what could be the cause and how can it be changed?

I'm using sssd in order to work with LDAP users and groups within our Linux environment. I had to rename the LDAP group of one of my Linux users and I noticed that after I finished editing the group, ...
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votes
0answers
16 views

Cannot work with opsi server [on hold]

I have installed the Opsi-server in centos by following this http://download.uib.de/opsi_stable/doc/opsi-getting-started-stable-en.pdf.The opsi server was installed successfully and the server GUI is ...
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votes
1answer
50 views

DNS is not pointing [on hold]

Let me clear scenario first 1)I purchased static IP from network provider and his name server is INPUDIIDNSPRPRD01.TATACOMMUNICATIONS.COM and INCHVSIDNSSEPRD01.TATACOMMUNICATIONS.COM 2)Then I just ...
2
votes
1answer
16 views

Is there anyway to use rsa certificate authentication with imapsync

We have an off-site warm standby backup host that I wish to periodically synchronise our imap server with using imapsync. I would like to know if it is possible to use RSA certificate authentication ...
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votes
0answers
25 views

My webhost has put my CentOS6 dedicated box in “rescue mode”, after a “minimum grub boot” (their words) [on hold]

...and I frankly have no idea where to start. I've run my own boxes for a couple of years, but this is beyond my skill level. I've had the box a few months just as a backup server. I logged in and ...
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votes
0answers
14 views

What is the default httpd config for Icinga2 on CentOS6? [closed]

The install instructions for Icinga2 do not give you a sample config file. I'm not using name-based or IP-based virtualhosts yet, this is just a VM I spun up for testing. I'm had assumed that ...
0
votes
2answers
39 views

Why am i getting execute binary file error?

Hi all i am getting following email every 10 min. as I own the VPS. I am not expert in linux and am learning to manage linux servers. Please help me why am i getting these emails and how to stop them ...
-1
votes
1answer
31 views

How do I read /var/log/lastlog [closed]

This is a 30GB file, I tried to open it in VIM It does not show anything, How can I see contents of this file This is CentOS 6.5
0
votes
1answer
98 views

Installing Redis on CentOS 6.6 , yum keeps using redis-2.8.14-2.el7.x86_64 (EL7) instead of EL6

Im trying to install redis on one of my servers. but i keep getting Error: Package: redis-2.8.14-2.el7.x86_64 (epel) Requires: systemd This is due to the fact that its trying to download ...
0
votes
0answers
31 views

Wait Time (TTFB) Difference Between Apache and IIS 8.5 [duplicate]

I have a system which runs on PHP and MySQL. I know that there is a performance difference between WinServer 2012R2 IIS8.5 vs Centos 6.5 LAMP when using PHP&MySQL based structures. But the ...
1
vote
1answer
87 views

xz compression not available - yum error on centos [on hold]

I want to update my php to new version. Dealing with this source: https://webtatic.com/packages/php56/#comment-139854 And now I can't use yum commands. Anytime when I'm trying install something or ...
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votes
0answers
52 views

What Is Using All The Partition Space On dev/md1 [duplicate]

My CentOS 6 dedicated server (CentOS release 6.6 (Final)) keeps running out of space on the dev/md1 partition. The server is running Plesk 12.0.18. Here's the structure: $ df -h Filesystem ...
1
vote
1answer
20 views

sFTP users permissions to overwrite/edit over root owned files

This is related to Give SFTP users and Apache write permissions on same folders So, I am using ACLs to give write permissions over /var/www. It works perfectly when developer login users upload new ...
-1
votes
1answer
30 views

Apache SSL works but the config shows it's only listening on 80 not 443, how is it possible?

Server: CentOS 6, Apache 2.2 and OpenVPN installed. The httpd.conf has: #Listen 443 Listen 80 Websites work in https so I think OpenVPN might be listening on 443 and forwarding to Apache ...
0
votes
0answers
13 views

Which kernel parameters should be adjusted to fix RX overruns?

I have a Centos 6 server that handles a lot of traffic. I see RX overruns increasing all the time: RX packets:11191345002 errors:0 dropped:0 overruns:35592596 frame:0 TX packets:15262461573 errors:0 ...
0
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0answers
24 views

How do I get auditd to push messages to a remote syslog server on Centos 6.6?

I'm a Windows guy trying to help a friend out. We need to get file auditing data off the Centos 6.6 server to a central syslog server. I found the auditd service and the audisp plugin. I edited the ...
1
vote
1answer
53 views

Nginx + Apache server crash every 6 days [closed]

I'm a web developer and I am having a very nasty problem with one of the websites I'm working on and I was hoping somebody here may be able to help me. The website is running on a dedicated server ...
0
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0answers
23 views

Troubleshooting high load average

We have a cluster of Centos 6.5 servers that run Java on them. These servers connect to a cluster of MongoDBs quite frequently. On the Java cluster, we are seeing high load averages but CPU ...
0
votes
0answers
7 views

Starting qmail-toaster: svscansvscan: warning: unable to read directory: access denied

I got such message when trying to start qmail-toaster: Starting qmail-toaster: svscansvscan: warning: unable to read directory: access denied All permissions are correct. drwxr-sr-x. 2 alias ...
0
votes
1answer
43 views

grubby fatal error: unable to find a suitable template

I'm trying to fix my system after moving it from one server to another. It works perfectly with kernel booted via network, but not from the disk. Reinstalling stock CentOS 6.6 kernel shows this ...
0
votes
1answer
13 views

How to configure the niceness or priority of service started on boot

I want to increase the niceness of an service (decrease the CPU priority) started as an dedicated user or group during the boot process. I'm not able to define the niceness or priority in the ...
1
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0answers
70 views

CentOS 6.6 LDAP configuration failed

I'm trying to config OpenLDAP on CentOS 6.6 with this db.ldif config: dn: olcDatabase={0}config,cn=config changetype: modify replace: olcRootPW olcRootPW: {SSHA}UCCQrNoadIFC2lN0Y6YxzCfu9hT/jZni - ...
0
votes
1answer
52 views

Supermicro super server RAID warning

Hey guys sorry in advance for the noobish question. Our company just received a brand new 6017R-WRF Supermicro superserver. I have been tasked with getting this bad boy setup. I am a software dev ...
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votes
1answer
22 views

SFTP - Create a hierarchy of users to control access

I would like to create two levels of users to restrict SFTP access: "parent" users, and "child" users. I need the parent users to be able to access all the directories owned by the children, but the ...
0
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0answers
48 views

CentOS-6-x86_64-GenericCloud Credentials

I have downloaded a CentOS-6-x86_64-GenericCloud-20141129_01.qcow2 image from http://cloud.centos.org/centos/6/images/ While using the above image in the openstack, I need the SSH credentials to ...
1
vote
1answer
52 views

Special characters in mysql password using mysqldump

I have the following ssh script: #Here I am getting the mysql password for the root user password=$(cat /root/.my.cnf | grep "password" | awk -F\" '{print $2}') #here I am trying to dump the ...
0
votes
0answers
63 views

IPSec tunnel between Cisco and openswan

We need to setup a site to site vpn connection and Our provider use Cisco system and we are planing to use openswan on centos (hosted on digitalocean). Our provider asking us following information. ...
0
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0answers
115 views

CentOS 6: Apache 2.4 drop-in replacement for Apache 2.2 via yum?

I've a CentOS 6.6 installation with the stock Apache 2.2 package. I need to upgrade it to Apache 2.4, but I want a true drop-in replacement for the installed package, not something that goes into /opt ...
2
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0answers
70 views

How to emulate union mount behaviour with LVM in CentOS?

In short, I want to create a system restore image. My idea with AUFS is like the image below Now, as I require this mount setup at boot-time, I don't think I can do it with fuse and will require AUFS ...
0
votes
2answers
52 views

Nginx - 2 https servers on same public ip [duplicate]

I currently have several regular http servers and 1 https server. I would like to add another https server with the same public ip. I have something similar to server { listen 443 ssl; ...
0
votes
1answer
43 views

Hudson GUI cannot run a job with same command that runs fine from the shell

I get this error while trying to run a job in hudson here is the log Started by user anonymous [workspace] $ /bin/bash -x /tmp/hudson3189813701500418318.sh + date Thu Feb 19 17:02:03 EST 2015 + fab ...
0
votes
1answer
20 views

Mail delivery hindered by alias?

Account info exists for receiving email. However, all mail sent to info is delivered to root. It looks to me this is because the following aliases exist (as shown by praliases): info: postmaster ...
0
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0answers
30 views

how to have one role deploy different files per hosts in ansible [duplicate]

I have a role in ansible but and want to use the copy module in ansible to copy the specific files for specific hosts. Not exactly but pretty same scenario .../roles/serverfiles/tasks/main.yml # ...
3
votes
1answer
63 views

NGINX orphans a semaphore on restart (4294967295)

Every time NGINX is restarted, two semaphore arrays are left behind. Given semaphores are a limited, shared resource--the server is constantly careening, albeit slowly, towards a quota limit failure. ...
0
votes
1answer
63 views

How do i print the current hostname of a host in ansible

I wrote a role to edit the motd when user log into the machine, but i want to personalize the motd to print the hostname of the machine What vriable do i use? or how do i do this? template? how? I ...
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votes
1answer
392 views

Redis installation on centos 6.5

I am trying to install Redis on centos 6.5 (x64) with following line: yum install redis But I am getting following screen: [root@NodeJs ~]# yum install redis Loaded plugins: fastestmirror Setting ...
0
votes
1answer
51 views

Apache automatically stops each sunday. Why?

Every sunday at 3 Apache restarts. Problem is: there is a ceritificate on the server with an encrypted private key. Being the password not provided during automatic restart, apache stops and all my ...
0
votes
1answer
77 views

CentOS startup script command not found

Trying to start bitcoind on CentOS 6, but just getting command not found errors. #!/bin/bash # # bitcoind The bitcoin core server. # # # chkconfig: 345 80 20 # description: bitcoind # processname: ...
0
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0answers
60 views

pam_mount not working when logging in from ssh or console

okay so i configured pam_mount on my centos 6 machine as i did on my centos 7 and 5 machines. But when i login locally or via ssh, pam_mount can't mount my home dir. when i login with a local user, ...
0
votes
1answer
60 views

Postfix/OpenDKIM not signing PHP sent emails

We installed SPF, DKIM, and DMARC records for email security/verifiability. When sending through the console or a mail client like Outlook or Mac's Mail it processes fully and has all three pass. ...
0
votes
1answer
89 views

LDAP users can't ssh

When I ssh to my CentOS 6 server with root account, everything is working fine. But when I try with an LDAP user, I get permission denied. I tried logging in with root, and then su to a LDAP user, to ...
0
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0answers
20 views

netstat output without PID

I just stumbled across this issue with the netstat output on my server, There are a couple of ports which are listening, but do not have a PID attached to it. I want to make sure they are not ...
0
votes
1answer
124 views

Error while installing php-imap on CentOS 6.6

I'm trying to install php-imap on CentOS 6.6 yum install php-imap But I'm getting this error: Error: Package: php-common-5.3.29-4.w5.x86_64 (webtatic) Requires: libcurl.so.3()(64bit) ...
1
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0answers
21 views

Rollout approach for centOS/RHEL linux servers to achieve centralised authentication through AD

We have 3 environments testing develop and production each having more than 40 Linux servers. Need to establish centralized authentication through AD for all these environment. Which is the best ...
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votes
1answer
108 views

assign Second IP in ESXi 5.5 host Centos 6.6

Hello i have just installed CenOSs 6.6 on ESXi 5.5 and I have eth0 working fine. I have internet access and I want to assign a second IP in CentOS. So purchased another ip from oneprovider.com and ...
0
votes
3answers
58 views

How can I recover httpd.conf file? [closed]

I am using CENTos 6.6. I accidentally removed the httpd.conf file. Now, apache is running but if I restart it, It will crash. How can I recover httpd.conf file?
0
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0answers
44 views

Apache 2.2 - many READ state requests - but this is not slowloris attack

I have problem with Apache and slow read request (see pic). This is not slowloris - we have mod_antiloris. On this server one from many domains have thousands request in minute (some mobile app check ...
0
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1answer
91 views

sudo and --ask-sudo-pass on CentOS 6.6

I'm running command: [kamil@server.com ]# ansible example.com -a "sudo id" --ask-sudo-pass sudo password: example.com | FAILED >> { "failed": true, "msg": "[sudo] password for kamil: ...
3
votes
1answer
56 views

What is fastest way to copy a sparse file? What method results in the smallest file?

BACKGROUND: I'm copying a sparse qcow2 VM image that is 200GB in size, but has 16GB of allocated blocks. I've tried various methods to copy this sparse file within the same server and have some ...