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mysqldump: Error: ‘Out of resources when opening file ‘/tmp/#sql_466b_2.MAI’

By PrasadNaik
July 15, 2016

While creating of backup of mysql I was getting below error mysqldump: Error: ‘Out of resources when opening file ‘/tmp/#sql_466b_2.MAI’ (Errcode: 24 “Too many open files”)’ The error is due to Mysql exceeding the limit of open files on mysql So I just went ahead and saw the open file limit MariaDB [(none)]> SHOW VARIABLES […]

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SSL connect attempt failed error

By PrasadNaik
July 12, 2016

While working on one of clients server I was getting below error while updating cpanel license in server root@hoskb [~]# /usr/local/cpanel/cpkeyclt Updating cPanel license…Done. Update Failed! Error message: Transition to SSL failed: SSL connect attempt failed error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed also while debugging did try yum update however I got an error as well root@host113 […]

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No route to host: AH00056: connect to listener on [::]:443

By PrasadNaik
July 8, 2016

While working on one of clients server I came across one of  the errors in Apache error logs root@hosting [/usr/local/apache/logs]# tail -n 10 error_log [Thu Jul 07 23:28:49.791175 2016] [core:warn] [pid 1845] (113)No route to host: AH00056: connect to listener on [::]:443 The error was due to basically iptables blocking I went ahead and flushed […]

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Strict standard error in PHP

By PrasadNaik
July 4, 2016

While working on one of clients website after migration from PHP 5.3 to PHP 5.6 I would see the error on “[01-Jul-2016 02:18:54 America/Chicago] PHP Strict Standards:  Declaration of Countries::getAttribute() should be compatible with CActiveRecord” On googling around I could see the issue was fixed by making changing few settings in php.ini Add & ~E_STRICT […]

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An installation already exists softacalous

By PrasadNaik
July 4, 2016

While working on one server with cpanel I was facing this error where I was getting “An installation already exists softacalous” while installing an application via softacalous Where as in Softacalous I could not see any application installed. While debugging I  found the error was occuring from  in file /home/username/ .softaculous/ installations.php I went ahead […]

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How-To disable IPv6 on RHEL6 / CentOS 6 / etc

By PrasadNaik
July 4, 2016

Proper way of disabling IPv6 subsytem in RedHat Linux 6 / CentOS 6 (dont unload modules or so) in /etc/sysctl.conf  :  net.ipv6.conf.all.disable_ipv6 = 1 in /etc/sysconfig/network  : NETWORKING_IPV6=no in /etc/sysconfig/network-scripts/ifcfg-eth0 : IPV6INIT=”no” disable iptables6 – chkconfig –level 345 ip6tables off reboot done   Without reboot it can be done using below command to disable IPV6 root@host121 [~]# echo […]

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[AuthFailure] Either the username was not recognised, or the password was incorrect)

By PrasadNaik
April 11, 2016

Getting error on XVNC for password authentication I could see below error in logs [AuthFailure] Either the username was not recognised, or the password was incorrect) After googling I found vnc server will need to be restarted once password is reset root@online [~]# /etc/init.d/vncserver-virtuald restart root@online [~]# /etc/init.d/vncserver-x11-serviced restart Now VNC work fine

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Apache Issue

By PrasadNaik
March 25, 2016

“Secure Connection Failed An error occurred during a connection to realtrafficsource.com. The OCSP server suggests trying again later. Error code: SEC_ERROR_OCSP_TRY_SERVER_LATER The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.” Solution: Login […]

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Find GPU or Graphical processing Unit in Linux

By PrasadNaik
February 20, 2016

While working on one of the issue we need to check if GPU is installed We got it using below command which shows type of CPU installed in cli mode [root@localhost ~]# lspci -vnn | grep VGA -A 12 07:0b.0 VGA compatible controller [0300]: ASPEED Technology, Inc. ASPEED Graphics Family [1a03:2000] (rev 10) (prog-if 00 […]

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