CentOS is a free (as in beer and speech) GNU/Linux distribution that is community driven and based on source code released from RedHat.

learn more… | top users | synonyms

2
votes
2answers
33 views

centos 7, sudoers rights limits

i have a task to separate duties of users on a group of servers, the system is centos 7 there is a user that i want to give every right on the server except for the right to change root and other ...
1
vote
3answers
89 views

To SSL or to not SSL

Currently I have a website that serves a lot of mixed content I have the whole website under ssl. example.com All static content such as css js and a small amount of my own images such as logos ect ...
-2
votes
1answer
51 views

SAVE IP ROUTE RULES AFTER REBOOT

I have two internet connections from two different ISPs and I need to balance & failover the traffic originating to and from my network between the two ISPs. My settings: FIRST ISP (eth0): 152....
2
votes
2answers
326 views

Using Lets Encrypt SSL for multiple Apache servers with distributed traffic

I'm having some issues setting up Let's Encrypt for a couple websites that are setup on two different servers, and have the traffic distributed to them via HAProxy. The servers have a number VHosts/...
2
votes
1answer
113 views

Apache spawning enormous number of httpd processes

I am running a CentOS 6.7 machine (16 GB vRAM, 8 vCPUs) with a simple web server setup (Apache/2.2.15, PHP/5.3.3, MySQL/5.1.66), hosting an online shop with a moderate number of page impressions (...
1
vote
0answers
30 views

ifconfig output different for non-root user

we use a montoring system to capture network traffic. the output as root user is fine: eth0 Link encap:Ethernet HWaddr 00:1E:67:E6:D6:FE inet addr:149.56.19.13 Bcast:149.56.19.255 ...
0
votes
0answers
67 views

pptp vpn client close all inside connections

I setup PPTP-VPN-client on my Centos VPS (guide: http://websistent.com/how-to-configure-a-linux-pptp-vpn-client/ ) when i connect to pptp server from my centos vps all connections(ex ping, SSH-...
2
votes
2answers
70 views

Is order of network routes important in Linux?

On one of my web server the loopback route is in 2nd position and usually it is in 3rd position on other server when displaying the routes: >ip route show Results on what is displayed on one ...
0
votes
0answers
16 views

Install php-ZendFramework and php-ZendFramework2 in parallel on a machine

is it possible to install php-ZendFramework and php-ZendFramework2 on one host? I need v2 for bareos-webui and v1 for icingaweb2. I've only found some info here (http://framework.zend.com/manual/...
0
votes
1answer
43 views

ldapsearch not working

My goal is to test LDAP authentication from command line. I tried using ldapsearch for this. I'm using Centos 6.7 Even though I'm using the correct credentials, the following command fails [user@...
0
votes
0answers
122 views

Problems installing pdftk on CentOS7 - libgcj issues

I'm trying to install a command line pdf manipulation program called "pdftk" on CentOS 7. I've tried several ways to get it installed and running into issues. If I try to install the rpm I get this ...
0
votes
1answer
36 views

Forward service records from main DNS to IPA server

I have a production DNS server (dns1.local) in Data Center environment, I build recently IPA server (ipa.example.com) that runs DNS as well in the same environment and it forwards requests to dns1....
1
vote
1answer
32 views

Accesing Samba share from Windows

I have a CentOS machine with samba installed and configured like so: [global] security = user workgroup = mycompany and one share [myshare] path = /srv/mysrvapp writable = yes valid user = ...
1
vote
0answers
46 views

Ran out of inodes because of something happening in the meteor packages folder

I'm running meteor in a centos server (not production) where I've installed meteor, this meteor app rebuilds everytime I pull the code from git. The server ran out of inodes and I've realised the ...
0
votes
0answers
28 views

Webserver always too slow in AWS EC2 instance

I started a simple python server on port 4444 in one of my ec2 instance.and tried to access it by curl. It takes more than 5 seconds for server to respond. Below is the tcpdump output on port 4444 ...
1
vote
3answers
76 views

How to shrink /home and add more space on CentOS7

CentOS 7 file system is XFS, And resize2fs doesn't work. I need to shrink /home to 400G and add 100G space to /. What should I do? # df -h Filesystem Size Used Avail Use% Mounted on /...
0
votes
2answers
80 views

CentOs, Apache24

Essentially I am installing apache2.4 onto centOs6.6 using the Apache2 CHEF cookbook. I have it working to the point where all the service commands work minus the sudo service httpd24-httpd ...
2
votes
0answers
17 views

security audit flags redhat/centos package version numbers despite patches

Redhat has this policy of backporting security fixes. But then when RHEL and CentOS sites get audited, the auditors invariably just list the package versions or ask ssh what it's version number is, ...
1
vote
0answers
18 views

Iptables multiple port redirects based on destination address

I have iptables setup for selective routing. In the current configuration it checks if the dst address is listed in a specific chain and if it is not it redirects the traffic to my proxy port which is ...
0
votes
0answers
46 views

IPSEC help using Strongswan on CENTOS 6.6

I have been tasked with setting up an IPSEC tunnel to our remote data provider. They require my Phase 2 traffic to be PAT'd behind a public address. I am using strongswan 5.3.2 on CentOS 6.6 on a ...
0
votes
0answers
87 views

Windows machine can't resolve newly added DNS name from CentOS named server but can resolve others

OK, I am going to try and explain this as best and easiest as I can. I have a CentOS 6 machine (named SRV3) running as a DNS server for all of our domains. This is working fine. I have another ...
1
vote
1answer
35 views

DNS - public address for local zone

I am facing an issue I don't quite know how to solve it. So I have two internal dns servers, let's say dns1 and dns2. They serve a zone let's say z1.mydomain.com - and internally everything is ...
0
votes
1answer
226 views

Install apache 2.4 and php7 on centos 6

I would need to install / compile apache 2.4 and PHP7 to work together on Centos 6 (specifically on 6.5). I've tried the ius packages, but while apache 2.4 works correctly, it seems that php7 still ...
0
votes
2answers
326 views

Block request that is possible ddos

How would i best block a request that takes on the following form in the acces 104.154.55.118 - - [19/Apr/2016:06:33:57 +0000] "GET /werken-bij/onze-opdrachtgevers/senior-big-data-architect-open-...
0
votes
0answers
176 views

CentOS 5.11 apf/iptables; iptables sometimes fails when apf restarts

On one of our old servers, a CentOS 5.11 machine using apf as a front end for iptables, we're having an intermittent problem with iptables failing when apf restarts on occasion. When this happens, the ...
2
votes
1answer
14 views

Matching back ported package versions to major releases

Is there a way to link a backported versions of package to what is released by the original developers. For example the latest Centos package for OpenSSL is : openssl-1.0.1e-42.el6_7.4.x86_64.rpm ...
0
votes
0answers
78 views

oVirt release36 on CentOS Linux release 7.2.1511 (Core) --> Failed to acquire lock: No space left on device

I'm running oVirt release36 on CentOS 7.2.1511. When I start the hosted virtual machine, I am presented with the following error: exitMessage = Failed to acquire lock: No space left on device I can ...
2
votes
0answers
34 views

SELinux preventing access to /var/log due to Docker

I have a Docker container that should read logs, including those from the host itself. So I mount the volume /var/log using the z flag. This changes the SELinux context on the files inside /var/log ...
4
votes
1answer
38 views

glibc-compiled programs on CentOS 6.7, will they also run on CentOS 5.10?

We have a grid computing environment, comprised primarily of CentOS 5.10 hosts, that people compile applications on and then run them. We're mulling an upgrade to CentOS 6.7 and we're wondering if ...
0
votes
2answers
25 views

PostgreSQL can't authenticate from localhost, but only from remote

I have a server with postgreSQL running. A few days ago I set it up so that I can access the database remotely from my home PC and that worked (based on this guide: http://www.cyberciti.biz/tips/...
0
votes
2answers
60 views

CentOS issue extracting Plesk backup tar

I am currently moving to a new server and have a Plesk backup file in Dropbox made with the Plesk Dropbox Backup extension, the .tar file is around 55GB in size. I have downloaded it to the server ...
1
vote
0answers
32 views

Centos - PhpMyAdmin showing blank screen when trying to access it [closed]

I have just installed PhpMyAdmin, and when i try to access it it just shows a blank screen. I suspected this is because i followed a tutorial on how to secure php, so i reinstalled php to reset the ...
1
vote
1answer
87 views

High CPU usage by Apache on opening WordPress Admin Pages

I'm having a VPS server with below configuration 2 core CPU 2GB RAM 50 SSD Centos 7 Web Panel: Sentora From the last week, I'm facing a high CPU usage. Most the sites are WordPress. On opening each ...
0
votes
1answer
66 views

can not ping any hostname

I recently got a server from a company for new mail service configuration but now i have a amazing problem! "ping google.com" not working and returned "ping: unknown host google.com" , but ping 8.8.8....
0
votes
1answer
287 views

How to disable ssl plugin on MySQL 5.7 server?

New introduced SSL connections on MySQL Server is now default installed on CentOS 6.7 default rep. Just removing the certificate files can solve it accoding with Docs: "If the server does not ...
0
votes
1answer
32 views

AutoMySQLBackup: Create a single file for each database

I'm backupping my databases with automysqlbackup. This works fine - but unfortunately I do not get a single file for each database but a cumulative file called daily_all-databases_2016-04-...
0
votes
1answer
169 views

Can connect via SSH - but not via SFTP? Exit status 127

Unfortunately I can not connect via sftp to my VPS: This is my sshd_config: # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we ...
6
votes
1answer
572 views

Can't access https despite port 443 is opened

This is my first time setting up a server and I've just installed a SSL cert. I have also made some changes to the iptable to allow access to 443. Below is the output of iptables -L target prot ...
-2
votes
1answer
80 views

How to create RDNS (Reverse DNS) [closed]

How to create a RDNS (Reverse DNS) in centos or Ubuntu [PTR record] I searched a lot in Internet and didn't find any solutions. I got a idea it can be done by BIND or BIND9. In some forum i seen ...
0
votes
0answers
28 views

CentOS df misreports free disk space (due to mounted volume?)

I have a server with an LVM volume mounted under /mnt. When running df -h to check free disk space, it appears to show the space consumed under /mnt as being used in /: [root@monitor spool]# df -h ...
1
vote
0answers
26 views

Create xfs system with mfks

I'am following a guide to install Zenoss which asks me to create a xfs system. To do this I need to run the following command: mkfs -t xfs Partition The guide says as follows: 'Replace Partition ...
1
vote
1answer
89 views

nvme device dropouts - I/O 0 QID 0 timeout, controller disabled

We have 6 Supermicro servers all of the same (or very similar spec), Over the last two weeks one of them has been dropped an NVMe disk at random times due to: [ 66.856719] nvme 0000:03:00.0: I/O 0 ...
0
votes
0answers
56 views

Why does MariaDB hang on shutdown on CentOS 7?

I installed MariaDB 5.5 using the CentOS 7 packages (yum install mariadb mariadb-server). The server starts up OK and seems to work fine, but it won't shut down properly. Every time I do systemctl ...
0
votes
3answers
204 views

Yum update errors

I try to run yum update but I have three errors. I try to run the commands suggested but change nothing. How I can solve this errors? --> Processing Dependency: libzip.so.4 for package: php-pecl-...
0
votes
0answers
30 views

How can I configure a Django website to work with Apache 2.4 VirtualHosts?

I recently started developing Django websites and I want to deploy them on a CentOS VPS with mod_wsgi and Apache. I followed this guide and it works perfectly, but I would like to have more than one ...
1
vote
1answer
46 views

Unable to access Amazon EC2 Centos 6 web server with Elastic IP

I'm new to linux and AWS. What I've done: 1. I've setup a Centos 6 instance from the AWS store. 2. I just installed the web server and configured the web server with the basics. 3. I've setup the ...
0
votes
3answers
225 views

upgrading openssl in CentOS 7

First, I tried downloading the source tarball openssl-1.0.1s.tar.gz from openssl.org and doing a ./config && make install, and although it seems to have completed the process successfully, I ...
0
votes
2answers
68 views

How to keep openvpn connection open on Centos

I access test server via shell and i use this command to connect to VPN sudo openvpn client.conf I want to keep the connection open with the VPN, something like service when you make service ...
0
votes
1answer
117 views

Firewalld blocks IPv6, ignores config

I'm trying to setup an IPv6 web-server on CentOS 7.2 with NGINX. I have tested my IPv6 connectivity outgoing and incoming - everything works. My IP, AAAA records, etc as fine as well. Essentially ...
0
votes
2answers
47 views

Someone sending email through my Postfix/Dove

there might have been answers to this many times. But I can't seem to find one that fits my issues so here we go: I've ran an email server on my centos machine for over four months without problem, ...