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

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17 views

SSL handshake with CentOS, curl and ECDHE

Since I limited my Ciphers to ECDHE because of the Logjam vulnerabilities, I am not able to do a curl from a Centos machine anymore. (works from Ubuntu) $ curl -v https://mysite.mydomain.com * ...
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10 views

How can I find out my centos RAID setup, with a LSI MegaRAID SAS 2108 controller?

I've bought an auction box from Hetzner which allegedly has 4 3TB drives in it. As a relative newb to this sort of thing I just want to see some reassurances on the command line that this is all ...
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2 views

OSSEC is making AWS EC2 instance w/ Centos 7 become unresponsive

If I start OSSEC, my Centos 7 AWS instance becomes unresponsive after a short while (under 30 mins usually). httpd and ssh do not respond ever until I go into the AWS console to reboot it. I've ...
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14 views

firewall on server preventing access by multiple computers on same NAT'ed ip

I am encountering a strange problem with my VPS provider and wondered if anyone here with firewall / sysadmin experience had seen anything like this. Has anyone seen a situation where a firewall or ...
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2answers
43 views

CentOS Server - Available disk space constantly drops

The result of the df command : Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 864000688 809338092 10773908 99% / tmpfs 32965940 0 32965940 0% ...
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1answer
34 views

CentOS kickstart - force kernel version

I'd like to kickstart some servers using a specific kernel version (slightly downrev) but can't figure out the correct syntax in the kickstart file. I've tried specifying this in the "%packages" ...
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0answers
11 views

GLIBCXX_3.4.15 not found [on hold]

I'm running a plugin that is showing me this error: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found How can i fix it? I'm running CentOs 6.6
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1answer
23 views

Do we need to mount or not ? for Oracle ASM [on hold]

i am comparing the differences between installing a db with its files on a traditional filesystem and on oracle asm with traditional filesystem, it seems like there is no concern for disk persistent ...
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1answer
43 views

SSH works but tunneling or SFTP doesn't. Why?

since 2014 I've got a server from SoYouStart, with Centos 7. It worked perfectly, but now I had to install again the OS. Now I'm configuring all the services to work again. I need to connect to the ...
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1answer
35 views

Using SSH Keys with Kerberos

So there's an issue that we've been having at our company causing me to pull my hair out for the past week: We have hundreds of server boxes (a mix of CentOS6/7, if it matters) that need to quickly ...
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15 views

Nginx, gitlab, subdirectory, alternate port. What do I do? [on hold]

I've installed VestaCP on my CentOS VPS. I've installed the Gitlab-ce installer, which has it's own nginx server. That server is accessible via. https://example.com:6443 How do I make a proxy ...
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10 views

logger not logging to remote rsyslogd instance

I am running CentOS 7.0.1406 with rsyslogd 7.4.7 and logger from util-linux 2.23.2. I have two machines connected via a switch. When I try to use logger to log from one machine to the other, nothing ...
2
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1answer
14 views

Find modified selinux booleans

I have a CentOS 6.6 server that was setup by someone else. I'll be recreating this server from scratch on a new box and I'm wondering if there is any way I can find out what selinux booleans have been ...
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1answer
22 views

CentOS 6.6 and CWP - DNS

I installed the CentOS 6.6 and CWP on my second laptop, I think it is erroneous DNS information.. NS1: ns1.centos-webpanel.com | IP:185.4.149.83 [Change] NS2: ns2.centos-webpanel.com | ...
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19 views

Apache (CentOS): [warn] mod_fcgid: process 2661 graceful kill fail, sending SIGKILL

I am running a VPS with CentOS and Plesk. Today, when setting up a Magento shop suddenly the whole server had weird behaviour: All hosted websites delivered an Internal Server Error, SSH Connections ...
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1answer
28 views

Open Google Chrome on Centos 7 and screenshot it [on hold]

I have Centos 7 server installed on AWS and I installed "google-chrome" on it using a sample code on the internet which works fine. cat << EOF > /etc/yum.repos.d/google-chrome.repo ...
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1answer
10 views

Connect to MariaDB through SSH fails with error 2013 - Lost connection to MySQL server at 'reading initial communication packet'

I'm trying to connect to a remote MariaDB server through SSH using Navicat Premium from Windows but all the time I can't and get this error: 2013 - Lost connection to MySQL server at 'reading ...
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1answer
22 views

Installing php 5.5+ on Centos 6 alongside 5.3

How can I install PHP 5.5+ alongside php 5.3 (or 5.4 with the EPEL repository) on a Centos 6 server? I don't want to remove or supersede the default version, but I would like to have both versions ...
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1answer
38 views

Can't ssh, permission denied

I have created new user using useradd USER, but I can't SSH to the server and login with it. I already have another account to which I can SSH easily. Running ssh -v USER@domain.tld is returning this ...
0
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1answer
15 views

CentOS6.6 + Postfixadmin 2.3rc5 + PHP5.3, upgrade to PHP5.4

We're running PHP5.3.8 on a CentOS6.6 mailserver with Postfixadmin 2.3rc5. The client only wanted a mailserver at first, but then wanted to move some other sites to this server. Some of the sites need ...
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1answer
46 views

How to get screen pixel data from a Centos server [on hold]

I am running a Centos 7 server and I installed LAMP on it and everything works fine. I can SSH it and do all my stuff. But it happens that I need to once every hour open a website in Chrome. I cant ...
2
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0answers
37 views

OpenVPN allow two clients to connect to each other without using client-to-client globally

I'm running OpenVPN 2.3.7 on CentOS 6. I'm using routing (tun) and have two instance of OpenVPN. On the second instance there are two clients that I'd like to be make visible to each other i.e ping, ...
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41 views

how to turn a rescue kernel into a working one?

A yum update today made one of my CentOS 7 servers unusable: there is kernel panic as soon as the boot starts. I tried to start previous kernels from GRUB but all of them crash the same way. I even ...
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2answers
35 views

Using same port for http/ ssh on two ip's [on hold]

How could use two diferent services using the same port on two diferent IP addresses? Example: IP 1 : 192.168.10.10: Service: Http Server Ports: 443 IP 2 : 192.168.10.11: Service: SSH Server ...
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2answers
26 views

Cannot ping / ssh server after installing VirtualBox on CentOs 6.6 [on hold]

Our server was running fine this morning. I installed VirtualBox and rebooted the server. Since rebooting the server I do not recieve a response when pinging the IP address and I cannot connect ...
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0answers
18 views

How to foward 2 users requesting 2 different URLS(ports) to docker containers managed by apache in docker (beginner) [closed]

So. Lets first kick it off by me saying im not a networker (but learning to be one), but i have a problem related to it. If you have any answers, would you please provide it in laymans terms (Terms ...
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0answers
9 views

Centos 7 Wordpress Page not found error [closed]

i had installed a backup from my Wordpress Page on a fresh Centos 7 Server. things done: rewrite mod installed the htaccess file from wordpress have write permissions i changed AllowOverride to All I ...
1
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1answer
20 views

Seafile “ImportError: No module named Image” After upgrade 3.0 -> 4.2

I recently upgraded our seafile server from 3.0.4 to 4.2.3. All the upgrade scripts went fine. It's running on CentOS 6.6. But now when I try to start seahub after the upgrade like seahub.sh ...
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0answers
32 views

Something blocking me from login to web application hosted on centos 6.5 with WHM 11.50 [closed]

I’m not sure whether it’s right place for positing my question. If it's in wrong, kindly switch it to right place. Server details, OS: centos 6.5 Control panel: WHM Web server: apache 2.2 We are ...
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0answers
22 views

slabtop command doesn't work

I've inherited Sys Admin duties on webserver and I'm a bit of out my element, but learning as I go. My newest issue is all the of the ram has been gobbled up and I'm not sure where it has gone. free ...
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1answer
45 views

Apache 2.4.12 & CentOS 7: DSO shared modules not being built during compile

I have a general question. I am attempting to compile Apache 2.4.12 on CentOS 7 from source. I have read the 2.4 documentation, poured over configure -h, and searched the web, but no one seems to be ...
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13 views

centos7 pam_authz_search for *.group.company.com

Upgrading from Centos6 where we were using ldap.conf entry "pam_check_host_attr=yes" previously, with wildcard 'host' attribute in ldap where the host attribute looked like 'host=*.group.company.com' ...
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42 views

Haproxy service fails in centos 7 with certificate in a mounted directory

I am having an issue getting haproxy to load my certificate from a mounted directory when it is started with systemd. I can start haproxy directly as root without issue. Everything works fine if the ...
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0answers
18 views

IPSec Tunnel AWS VPC <-> openSwan CentOS 6.6 Tunnel up, no traffic

I managed to get a tunnel up between a CentOS 6.6 box and our AWS VPC. It shows as connected on the box, and in AWS, but the problem is routing the traffic from the server. Everything I've tried ...
1
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1answer
37 views

how do I clone a disk that is represented by a vmdk file?

I have VirtualBox installed on Windows 8.1. I have created a CentOS 7 virtual machine that loads the contents of a detached hard drive that is connected to the PC via a SATA Wire. The virtual ...
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16 views

Centos - Extend root partition size on rescue mode

I was wondering what is the best way (and what are the command lines) to extend the root partition size on a rescue mode system, without losing data already in it. My server is running on CentOS 6.6 ...
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0answers
25 views

CentOS - Resize a Volume Ext3 without losing data [closed]

Im on a dedicated server, connected remotely by SSH and Im having issues to resize one of my logical volumes. How can I resize the /dev/md1 without losing data that contains only 4 GB knowing that I ...
0
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1answer
16 views

auditctl buffer setting - how large is this?

Within the default audit.rules file on CentOS 5, 6 and 7, the following is set: # Increase the buffers to survive stress events. # Make this bigger for busy systems -b 320 However, there is no ...
1
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1answer
22 views

Super Micro Model 827-16 -> CentOS 6 RAID Controller driver

I have a Super Micro model 827-16 (part no: 6027TR-HTRF+) and need to get CentOS 6 installed. The problem is that I haven't been able to confirm if there are CentOS specific/supported RAID drivers ...
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0answers
19 views

creating a webserver (httpd) using vsftpd in centos

I want to create a webserver, to host websites, i have configured vsftpd, i have created user with default directory /home/sam , i am able to access the files using filezilla. but if i am creating a ...
0
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1answer
18 views

how to customize google compute engine sftp path?

I have configured sftp for my google compute engine VM instance by key method. I had generated a private and public key by Puttykey generator tool. Then i add that public key to my vm instance path ...
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0answers
49 views

I can't see my web [closed]

I have installed a LAMP stack on CentOS 7, but I face a problem. I can't see my web: AH00548: NameVirtualHost has no effect and will be removed in the next release /etc/httpd/conf.d/ssl.conf:1 ...
0
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1answer
44 views

Adding a new domain to my VPS not working (CentOS/Apache)

What I'm trying to do is to add a new domain to my VPS. So I added a new domain to my httpd.conf and updated the corresponding nameservers on my registrar. I used this code in httpd.conf file: ...
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0answers
20 views

Redirecting certain website paths to different webservers

Currently my primary web server is IIS8 on Server_2012r2 and I set up a secondary web server using Apache on CentOS that is running Own-cloud, is it possible to make it so when I type in ...
0
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2answers
34 views

Add custom 'allow' policy in SELinux

I would like allow httpd to executed files from a user's home directory. From audit2allow I understand that this implies the following policy: allow httpd_t user_home_t:file execute; How do I turn ...
0
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1answer
37 views

How to alias name for IP Address

I have a website which is hosted in local Server (CentOS 5.x) (Hostname: xxx.yyy.local, IP : 192.168.5.25). I can browse the site typing server ip in the browser from my Local Network. How can I get ...
0
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1answer
51 views

Reverse Proxy multiple internal FTP Servers

I have setup a reverse proxy for http using Apache mod_proxy like this: Client ---> http:/abc.domain1.com --> Reverse Proxy Server ---> 192.168.50.1 (Internal Server) Client ---> ...
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2answers
104 views

Trouble Starting Snorby / Ruby dependency issue

I am trying to install Snorby on a CentOS 6.6 machine and keep getting an issue with ruby and my Gemfile. I believe I either have to edit my Gemfile or it has something to do with an installation ...
1
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2answers
52 views

What can go wrong with yum update? [closed]

I have to update a server this weekend and the process goes with yum update. I have made tests in virtual machines but I am not sure what can go wrong in a real production environment. The server ...
4
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1answer
101 views

CentOS/Redhat kickstart script cdrom mount point

Trying to copy some files from my custom CentOS 7 install ISO to the new install in the %post section. I've tried all of these: cp /dev/cdrom/scripts/myscript.sh /etc/myscripts/myscript.sh cp ...