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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27 views

Centos SSH User Trouble

I created a new user in my CentOS 6.5 web server with useradd , added a password with passwd.and grand permission "visudo" to the new user adding "newuser ALL=(ALL) ALL " But when I ssh login ...
1
vote
1answer
19 views

Curl on Fedora does not accept Cloudflare https

Using curl on a clean vanilla Fedora 21 to retrieve a site hosted via the cloudflare https service gives an error: curl https://www.opencpu.org >> curl: (35) Cannot communicate securely with ...
0
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11 views

CentOS 6.6 - Additional public IP through aliasing in VM with bridged network

The scenario: A CentOS 6.6 virtual machine with a working public IP assigned to its eth0 via bridged networking (details about the setup below). The problem: I would like to add an additional public ...
1
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0answers
13 views

url injection - server hacked [duplicate]

I have a vps with virtualmin installed to host 6 wordpress websites. Recently I had a notification from Webmaster Tools saying that one of my websites was hacked - URL injection. I saw in Analytics ...
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0answers
11 views

Pam modules: some troubles understanding things

I recently started to study PAM and for the moment I am having troubles in understanding an entry from /etc/pam.d/sshd (among others). auth required pam_unix.so ... ... ... account required ...
1
vote
2answers
44 views

Command file 'nagios.cmd#015' does not exist issue if passivecheck is sent to NSCA daemon

Introduction As /usr/local/nagios/etc/nsca.cfg is replaced by the default config if opsview has been restarted the reference to this file that resides in /etc/init.d/opsview was changed to ...
0
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0answers
4 views

browsing apache via vm [migrated]

I have centos 7 running as a guest on my mac with virtual box. I am trying to browse the apache server from my macs browser but I am just getting web site is not available. I set the network settings ...
0
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0answers
30 views

Unable to set up name servers [migrated]

I've set up a server at my house running cPanel and CentOS. I'm unable to point a domain to the server using nameserver's. I can how ever point it to my server using an A record. I've set up port ...
0
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1answer
25 views

Centos yum resync installed packages

I am in a strange situation. I have a web server machine with CentOS release 6.6 (Final) installed with nginx, mysql, ISPConfig and Webmin which is working smoothly. Recently I noticed when using ...
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0answers
25 views

Why virtualhost is not accessible from the other ips? [on hold]

This is my apache configuration for the vhost. <VirtualHost *:80> ServerName test.mydomain.ca ServerAlias test.mydomain.ca DocumentRoot /var/www/test_mydomain/public_html ...
3
votes
0answers
30 views

What is the proper way to shutdown an iSCSI target with connected clients?

iSCSI with two DRBD primary nodes is a bad idea to use if the two paths get concurrent write requests. But I am thinking about using this idea as backend storage for an ESXi 5.5U2 host. I already did ...
0
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0answers
16 views

vsFTPd - not all connection succed - timeout (Centos)

I'm using Notepad++ ftp plugin to modify files on my server. Every x uploads (like 10 or 20 - its random) my upload starts and does not finish. My FTP server says Timeout. I changed vsFTPd logging ...
1
vote
1answer
42 views

Linux utilities commands not working for particular user

We are using a centos 5 server. We are facing a strange problem where for a particular user, the basic linux utilities commands such as (ls,cp..) are not working. The shell gets hanged as we fire ...
0
votes
1answer
13 views

php mcrypt on cent os 6.5

I have a problem with my php/apache setup on Cent OS 6.5 with php 5.5 I'm using a vagrant box where I installed php-mcrypt and it seems to work on the command line php -r 'echo ...
3
votes
1answer
160 views

How to schedule a Cron job for the second to the last day of each month

I want to schedule a task for the second to the last day of each month. I have read this great article about shell scripting the execution. I have also seen that you can use "L" to represent the last ...
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0answers
22 views

Centos 5.7 : Command 'su' doesnt work [duplicate]

Im logged like root, but when i try to change of user, I get this: [root@Backend01 ~]# su - deploy Password: su: incorrect password rm: cannot remove `su': No such file or directory [root@Backend01 ...
0
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0answers
13 views

Async synchronization filesystem strategies

I have the following scenario: Several front-end web servers (nginx + load balancer) serving a web app, each one having a local filesystem, to where user uploads are placed temporarily. An external ...
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votes
1answer
34 views

Installing CentOS7 / RHEL 7 on Proliant DL360e Gen8 [on hold]

I found a fix for this after hours of digging on line. Here is the main article i am using for a reference: https://access.redhat.com/articles/118133 The RAID card which comes with this system ...
0
votes
2answers
25 views

intermittent ssl_error_no_cypher_overlap

For the past week, clients have been randomly getting intermittent ssl_error_no_cypher_overlap errors when using Firefox. Connection issues have also occurred in Safari and Chrome. I can't find any ...
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0answers
27 views

Linux AWBS installation and configuration. Help please [on hold]

A friend of mine sent me this message and he has high expectations about me that I can do this. Can you guys help me out with this? I am setting up a hosting service and wish to have Linux base ...
-1
votes
0answers
17 views

How to install mcrypt in dual PHP version CentOS 6

I have two parallel versions of PHP installed on CentOS 6.4. then, i tried this link How to install mcrypt in dual PHP version CentOS 6? $ rpm2cpio php-mcrypt-5.4.16-1.el6.x86_64.rpm | cpio -idmv ...
1
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2answers
27 views

Disk Partitioning and Layout with LVM

I am trying to determine the best disk configuration/disk layout/partitioning scheme for a large, virtualized, multi tenanted environment. Our current scheme is very similar to rhel/centos defaults, ...
0
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0answers
8 views

CentOS 6 - Wordpress - Multi-developer Permissions [on hold]

I have several websites on a CentOS 6 server. Some are wordpress, some not. I need to create jailed developer accounts specific to each site. My ideal environment is: Jailed accounts specific to ...
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votes
1answer
49 views

CentOS 6.6 on HP Proliant 360 [duplicate]

I have 3 of the aforementioned servers, and when I netinstall centos on them, the installer recognizes the raid configuration and the logical disks and installs fine. Upon reboot after installation, ...
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votes
1answer
35 views

CentOS 6.4 does not seem to have patches for OpenSSL

Just wondering if anyone knows why CentOS hasn't released an update to OpenSSL? I have a 6.4 machine and updated openSSL but when I issue the "openssl version -a" it's showing 1.0.1e-30. However, if ...
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votes
1answer
28 views

Issue with access via port 22 from some FTP clients [closed]

I am having an issue with connecting to an SFTP server. On the same computer when I access SFTP via application A, I am given access, but when I use application B, I have no access. In my server ...
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votes
0answers
50 views

My minecraft server is struggling to keep up, but my cpu idle is very high [closed]

My minecraft (vanilla) server is spitting constantly spitting out these messages, even when idle and nobody is logged in: [09:52:47 WARN]: Can't keep up! Did the system time change, or is the server ...
0
votes
0answers
17 views

Copy mysql frm files to new server

I've read different tutorials about how to restore mysql databases by the .frm files but I am not getting it done. What I did, I created a new database by phpmyadmin. Copied the old directory from ...
-1
votes
0answers
26 views

Link-local address is unreachable

I have configured ipv6 on Cisco ASR 1000. Cisco configured as BGP router. LAN interface connected to linux and windows machines. All ipv6 addresses on CentOS and Windows are static. I checked Cisco's ...
1
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0answers
54 views

request failed: error reading the headers

Recently I moved my servers from one provider to the other and started to get this messages in apache error log: "request failed: error reading the headers" Example from the error and ...
6
votes
1answer
53 views

Why can't my DNS server start (bad zone error)?

This is my config (running named on centos). /etc/named.conf options { ## path to zone files ## directory "/var/named"; ## forward non-local to google ## forwarders { 8.8.8.8; }; }; ...
0
votes
0answers
18 views

How to configure apache + php-cgi on CentOS?

I have a Cent OS 6.6 server with Apache + mod_php site (site1.local). I need to configure second site (site2.local) with php_cgi. So, I created a user, gave him permissions on www-folder, configured ...
0
votes
1answer
90 views

LDAP user authentication on CentOS 7: Permission denied

I configured LDAP on CentOs 7 and now I'm trying to configure external user authentication. Browsing I found this: https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-ldap-pam.html that is ...
0
votes
1answer
43 views

Why did Linux OOM killer activate before using all of the swap?

I have a problem where my Java process gets killed by the kernel OOM killer. I'm not sure why that is happening, because according to syslog I still had free swap space: Jan 15 08:52:24 xyz-server ...
0
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0answers
39 views

CentOS 6, mod_mono configuration (pages not serving)

I've installed LAMP on CentOS 6, and that's all working fine - serves PHP without issue. I'm trying to install "mod_mono" to create an ASP.NET 4.5 site, but it's simply downloading the file (e.g. ...
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votes
0answers
16 views

Senmail Mutliple Servers Single domain [closed]

We've 3 locations of our offices in different cities and We are using Sendmail based mail server on all the three locations with a single domain name. One location is our Primary MX server and all ...
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votes
0answers
18 views

Update PHP component on server with running Plesk 12.0.18 [duplicate]

I've installed PHP component on my Plesk server with default version 5.3.3-40.el6_6 on CentOS6. Unfortunately I have damaged PHP and now I have to reinstall PHP on my plesk server. I'd like to install ...
0
votes
1answer
28 views

Cron job running at 12.00 AM despite changing its time [closed]

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
9 views

While the httpd is running I can not see any page [closed]

I can login to my VPS using putty (CenoOS 6.6). I just installed httpd, php etc. Whilce the httpd service is running is can not see any page when I go to the VPS ip with a browser. What is wrong with ...
0
votes
1answer
155 views

Can't start CentOS 7 “network” service

I Can't start CentOS 7 "network" service after disabling and removing "NetworkManager" service. When I check the network service status, it comes up with the following error: #systemctl status ...
0
votes
1answer
45 views

PHP cant write files regardless of permissions

On a Centos 7x64 box apache/php is unable to write files regardless of permissions. I set the directory to apache:apache and even set it to 777 and php is still getting permission errors. What else ...
0
votes
1answer
10 views

VSFTP server giving access denied for new users

I am probably missing something simple but I've been banging my head against the wall for a while now and I'm hoping someone can help. The Setup: vsftpd running on a Centos machine a number of ...
0
votes
1answer
34 views

Many httpd process run by Nobody user

Our VPS is running CentOS, 1GB memory, 3CPUs WHM/cpanel installed. We are running wordpress website. We got internal server error. top 2114 mysql 20 0 1849m 30m 2900 S 3.3 3.0 1:46.34 ...
0
votes
1answer
46 views

Teaming two NIC: iperf shows 200MB/s downloads but only 100MB/s upload

I have: One client with two 1000Mbps NICs, teamed using round-robin method One master with a 10Gbps NIC They are connected with a Huawei 10G switch (S5700). Then I ran iperf -s on master and ...
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0answers
19 views

CSR files generated by OpenSSL are corrupted

Everytime I try to generate a CSR file on my Server I get a ~1GB CSR file (with millions of lines of the same character, "A" in this case) like the following: -----BEGIN CERTIFICATE REQUEST----- ...
0
votes
1answer
33 views

VPS CentOS partition full, but my data is half of the space

I have a partition (EXT3 Journaled) mounted in /var/www/html/fcls with size df -h gives /dev/sdc1 197G 195G 0 100% /var/www/html/fcls I wrote about 100GB of files (many many ...
0
votes
1answer
27 views

Is there a well-known port for logstash-forwarder?

I'm setting up a few logstash-forwarder agents which will send logs to a central Logstash server, and need to choose a port for Logstash to listen on. After doing some searching, there doesn't seem to ...
0
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0answers
30 views

Replacing a failed harddrive in a RAID set with arcconf (Adaptec RAID Controller)

I just wanted to confirm some things before committing to production equipment, so I thought I'd run it by serverfault. I had a dead drive. It was not showing up in arcconf getconfig 1 PD and was ...
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0answers
32 views

PHP upgrade to 5.3.3 stopped sessions working

I can't login to any of my PHP applications now (phpmyadmin, mediaWiki) after using yum to update PHP to 5.3.3 I've looked at other posts but there doesn't seem to be a general fix to the problem, ...
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0answers
14 views

Common user to modify files owned by 'other' users [migrated]

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.. ...