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Questions tagged [centos6]

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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Upload Generic error java.io.IOException: Permission denied

I'm seeing the blow error in my Java application which tries to upload and download files to an NFS storage. The NFS share is mounted on my server successfully and I'm able to manually write (touch ...
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1answer
29 views

Package rh-php56 not available on CentOS 6 via centos-release-scl

Installing package rh-php56 in a CentOS 6 Docker image used to work using the methodology described here, but now I get the following error from yum: No package rh-php56 available. Querying yum, I ...
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2answers
26 views

Cron hourly after boot time

Is there anyway to execute cron hourly after boot time and not at a specific time every hour? I am working with CentOS6 and CentOS 7 machines. E.G.: When my computer boots at 00:42 I want it to be ...
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1answer
29 views

Dovecot: Operation not permitted

Im using centos6 and centos web panel, postfix. I can send messages and login in roundcube. But i cant recieve messages. Dovecot log: Sep 09 13:52:31 lda(test@domain.su): Fatal: setuid(101) failed ...
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1answer
58 views

mysql 5.7 to 8 update failed on CentOS 6.10

I tried to update mysql 5.7 to 8 on CentOS 6. I started with the steps given here in TecMint. Everything went well but the mysqld didn't started. The tail of /var/log/mysqld.log is 2018-09-09T06:10:...
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1answer
9 views

Powering up CentOS deployed OVF displays guest operating system not supported

I've exported an OVF template from a working CentOS 6 VM. My cluster is on VMware ESXi 6.5. To test if the export was ok, I decided to import back in by doing "Deploy OVF template..." After ...
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2answers
101 views

Install multiple PHP on CentOS 6.10

I have PHP 7.0 on my VPS with CentOS 6.10 and there is an application that needs PHP 7.1 and above. Also, there's a separate application that uses a php function that is deprecated in PHP 7.1, so I ...
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57 views

Centos 6.8 kernel 2.6.32-642.el6.x86_64 crash at linux-2.6.32-642.el6.x86_64/mm/vmalloc.c: 630

I have intel servers running CentOS 6.8 as KVM host,and there was an OOPS or BUG occurs. kernel crash at kernel-2.6.32-642.el6/linux-2.6.32-642.el6.x86_64/mm/vmalloc.c: 630 Did anyone else have this ...
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36 views

config iptables rules for pptp vpn

I used Setup PPTP VPN Server on CentOS 6 guid to setup pptp vpn on my server. Every things is fine and vpn work without csf and iptables. But when i enable csf / iptables i can't connect to vpn ...
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31 views

Constant ACPI errors in /var/log/messages on Centos 6.10

/var/log/messages is full of this, occurring every second. I can see this has been going on for at least 4 days but any older logs have been purged. Maybe it's always been like this. Jul 8 04:07:...
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55 views

“is allowed multiple installs, skipping” prevents downgrade of kernel on Centos6

I have 2.6.32-696.23.1.el6.x86_64 installed and would like to downgrade to 2.6.32-696.10.3.el6.x86_64 but the following command results in a skipping message: yum downgrade -y --disableexcludes=all ...
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1answer
22 views

Similar package as apt-get install socket for centos 6.9

I need to run a socket on CentOS as we have socket installed on Ubuntu. Is there any similar way I can do it on CentOS? NOTE: I can run simply socket on Ubuntu by socket -sl 555 -B 0.0.0.0.
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25 views

error: “net.ipv6” is an unknown key

On one of my CentOS 6 machines I get $ sudo sysctl net.ipv6 error: "net.ipv6" is an unknown key Why do I see this and how can I fix this?
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1answer
80 views

Nginx tries to run on port 80 but the configs have been removed

I have a server that runs nginx with varnish. I cannot run nginx and varnish at the same time as the they are both trying to listen on port 80. nginx is configured to listen on port 8080 ...
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1answer
53 views

Multiple websites on single bind dns server

I am using CentOS 6, BIND and HTTPD I have created 3 machine: DNS Server, HTTPD Server, Client Machine - All are working in a virtual environment under VMWare. IP of DNS server is: 10.0.2.16 IP of ...
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1answer
51 views

write permissions in mounted dir to apache user

Sorry for maybe silly/basic question... I have directory /var/www/html/logs. From /var to html owner:group is root:root and permissions are drwxr-xr-x. But "logs" dir has apache:apache and drwxrwxr--....
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64 views

How to debug this mass site outage situation?

I manage a Centos 6.9 server that runs around 30-40 Wordpress sites, this server uses WHM/Cpanel. Its a 24 core server that really doesnt see that much traffic and it usually has plenty of resources ...
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253 views

RabbitMQ on CentOS 6: unable to connect to epmd (port 4369) on sXXX-XXX-XXX-XXX: timeout (timed out)

I have a fresh installed VPS CentOS 6 and I would like to install RabbitMQ on it. I installed Erlang from here Erlang using repository method and installed RabitMQ rpm package from here RabbitMQ RPM. ...
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22 views

Centos 6.9 - DKIM - not autenticated

i have this error on postfix (Centos 6.9) May 21 17:41:48 mailer opendkim[1710]: OpenDKIM Filter v2.11.0 starting (args: -x /etc/opendkim.conf -P /var/run/opendkim/opendkim.pid) May 21 17:44:19 ...
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1answer
688 views

Running cron every 24 hours and start immediately

I want to run some script of python every 24 hours, at every 23:59:58 i want to kill the the job. I want to run python immediately. Thus I use this syntax bellow * */24 * * * cd /ftp/ftp1 && ...
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1answer
148 views

crcmod installed, but gsutil shows “compiled crcmod: False”

I suspect this is something to do with the fact that I'm on CentOS 6.9 and have had to install SCL Python 2.7 so as not to interfere with the default Python 2.6 install. I've been through the steps ...
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1answer
66 views

Nginx / PHP-FPM hanging connections

I noticed that my server this morning was not responding. received nginx error page after waiting some time for the page to load. I decided to restart php-fpm because I figured there was an issue ...
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32 views

CentOS 6.9 / Sendmail 8.14.4 / Mail gets stuck as “sending”

We have a "mail relay" server we use for copiers, scan-to-email and some other hardware devices that need to be able to relay e-mail. We recently retired our old mail relay and brought up a new VPS ...
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72 views

SSH and Telnet connectivity issues. It connects sometimes and sometimes it does not

I have come across a problem with SSH and Telnet wherein the connectivity is slow and drops multiple times. But I see that my network has no problems. When I ping a server, it gives me ttl of 127, ...
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1answer
20 views

Centos running python script every new file added on ftp

We are running on centos 6.9 Final and vsftpd version 2.2.2 Basically we had some folder which is our FTP folder that connected to ANPR/LPR camera. Every camera recognize the plate than the camera ...
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32 views

Mysql service stop suddenly in VPSMysql

need your help to identify whats going on in my VPS. I provide this mysqld.log to help us examine the problems.. 180420 22:42:06 [Warning] IP address '{HIDDEN IP}' could not be resolved: Temporary ...
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2answers
196 views

Can the number of CPU cores be reduced for a CentOS virtual machine?

Our VMware admins tell me that we can add additional virtual CPU cores to our VM's, but they tell me that we can't reduce the number of virtual CPU cores. One recently stated, "CPU on the other hand ...
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1answer
473 views

Unable to Install PHPMyAdmin on CentOS 6

I am attempting to update all my software on my CentOS 6 Server. I have updated from PHP 5.6 to PHP 7.2 and now trying to install PHPMyAdmin 4.8 but I am getting an error when running the yum command. ...
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25 views

Upgrading LAMP on CentOS 6.2 Errors

I have been trying to upgrade an old CentOS 6.2 server (x64) to support updates for a Drupal/CiviCRM website I have inherited. I tried to follow this guide but keep ending up getting the following ...
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22 views

Why is the network not reachable while another IP is reachable within the same subnet on CentOS?

Why is the network not reachable while another IP is reachable within the same subnet ? Network Reachable [root@vcn03 ~]# ping -I eth0 -c 1 10.52.96.48 PING 10.52.96.48 (10.52.96.48) from 10.52.111....
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1answer
97 views

unable to jail ssh fail2ban 0.9.6

I am on Centos 6.9 with fail2ban 0.9.6. I have the below SSH jail but after restarting fail2ban it is not enabled when running fail2ban-client status. The conf I used is /etc/fail2ban/jail.local. I ...
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1answer
17 views

Configure location on VirtualHost

I'm new at apache and have a few questions. First of all i'm working on a regional government and I have to set up in my computer a working environment, so I followed a manual they have to do that. ...
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1answer
34 views

Shell script with executable permissions returns “command not found”

I have a shell script file with executable permissions: -rwxr-xr-x 1 root root 1147 Jan 26 2017 my_script Even running it as root - fully qualified (path/to/file/my_script) I get the ...
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1answer
244 views

CentOS 6 OpenSSL Padding Oracle vuln. (CVE-2016-2107)

I am getting a very bad Overall Rating on ssllabs.com, due to the OpenSSL Padding Oracle Vulnerability (CVE-2016-2107). This is what I am using at the moment (Production Environment): Openssl 1.0.1e ...
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1answer
121 views

Error when trying to update samba4 with available packages

In our production environment, I need to apply a security patch by updating with the latest samba4 packages. On a centOS 6 build. I know there is available packages for samba4 when I do (yum info ...
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2answers
109 views

full /etc/ recovery from git

I have a CentOS 6.9 server. The full /etc directory was under version control. I accidentally ran 'git rm -R' on it. The server stopped working right away, my ssh session got lost. I managed to ...
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0answers
196 views

vgdisplay not showing free PE / Size space

I have Dell PowerEdge R730xd running Centos 6. I just added more physical disks to our raid and used open manage to increase the raid size, which is now at 67,063.50GB. I'm using xfs and have a lv (...
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1answer
64 views

root password found changed. Did someone break into my server? [duplicate]

This morning I found myself unable to log into the root account on one of my (CentOS 6) servers. I booted into single user mode and reset the root password. Everything seems to be working normally now....
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38 views

Cloudstack Error: NFS is Not Currently Mounted, Try Manually mounting from inside the VM

After the installation of cloudstack, The default Template centos is not downloading, I tried to register it manually by giving URL of minimal centos but still, it is not downloading it, even there ...
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0answers
19 views

hard drive clone on live production server [duplicate]

I am having some trouble, want to clone one of my old server hdd to new hard disk without taking all instances or server down and booting into live cd/usd. My old hardrive showing pre-fail status. So, ...
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38 views

Nginx “thousands of connections”

I have been reading the nginx documentation that was worker can handle thousands of connections. I am a little confused as to what is defined as a connection. I have been trying to figure out a good ...
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1answer
110 views

Linux self recovering DHCP after really long downtime?

I have a few CentOS 6/7 systems (non-production, experimental purposes) that have been configured to use DHCP for their IP address. Last week there was a big network disruption and I found that those ...
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1answer
63 views

PHP-FPM Servers being exhausted

I am building a "surge traffic" app that can go from 0 - 50,000 clients, at once, within minutes. I thought I'd ask you guys for some help understanding if I am doing something wrong here. Currently, ...
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1answer
539 views

sshd: unrecognized service

I am trying to start sshd but i am getting an error which says sshd: unrecognized service However, it seems that sshd is installed properly (?) # rpm -qa | grep ssh libssh2-1.4.2-2.el6_7.1.x86_64 ...
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1answer
125 views

Newrelic nginx plugin install (python issue)

This plugin won't let me install and I tried to write in to get help from nginx.. (not a good experience). The plugin says I do not have the daemon installed for python, but I infact do (I believe). I ...
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0answers
11 views

PHP - track probably malicious php script [duplicate]

I have Xenforo installation in home directory: /home/myaccount/public_html/forum Lastly, i have read in logs that every 5 minutes command /usr/bin/php /home/myaccount/public_html/forum/index.php ...
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1answer
413 views

How to resolve yum install mod_php71u conflict?

When I run the command yum install mod_php71u I get the following message: Error: httpd24u-tools conflicts with httpd-tools-2.2.15-60.el6.centos.6.x86_64 Error: httpd24u conflicts with httpd-2.2.15-...
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0answers
30 views

Chroot SFTP Group

I have a CentOS 6.9 file server set up. Everyone in the company is given access as a member of the staff group. They're dropped into /home/sharedfolder when they connect, however they're able to jump ...
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2answers
140 views

Error in named configuration

i'm currently studying DNS and have run in to the following errors in my centos6 VM. this is the tut i'm following tutorial [root@server1 named]# sudo service named start Starting named: Error in ...
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0answers
29 views

How can I debug Ruby Process that keeps climbing?

A few days ago all 4 of my app servers started having issues. It came after I deployed some code, but all I did was update a local database file that stores some IP Addresses, so I didn't make any ...