Blog - OnlineSupport4u

Mysql

How to restart ipaliases in centos 7

By Prasad Naik

December 14, 2018

Please run the command given below to restart ipaliases in centos 7 server with cpanel /usr/local/cpanel/etc/init/scripts/centos/ipaliases restart

Linux

How to add multiple ips in centos 7

By Prasad Naik

October 22, 2018

In centos 7 by default ifconfig command will not work. You need to install it using this command yum install net-tools 1. Create a file in /opt/1.sh 2. create ip list in an excel sheet, Example: ip addr add 198.xxx.xx.xx dev enp6s0f0 label enp6s0f0:1 ip addr add 198.xxx.xx.xx dev enp6s0f0 label enp6s0f0:2 ip […]

Mysql

/tmp is 100% due to Mysql

By Prasad Naik

September 21, 2018

Was having an issue where /tmp was getting 100% full every few minutes on investigation i see the files of 3Gb over there in /tmp #sql_436_0.MAD ddvps20 tmp]# ls -al total 3779332 drwxrwxrwt 12 root root 4096 Sep 21 10:24 . dr-xr-xr-x 21 root root 4096 Sep 21 09:17 .. drwxrwxrwt 2 root root 4096 […]

Mysql

Install Imagemagick on easyapache4

By Prasad Naik

August 13, 2018

yum install ImageMagick-devel ImageMagick-c++-devel ImageMagick-perl /usr/bin/convert --version /opt/cpanel/ea-php56/root/usr/bin/pecl install imagick

Linux

Redirecting HTTP to HTTPS

By Prasad Naik

June 29, 2018

Redirecting HTTP to HTTPS RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L] Redirect Only a Specific Domain RewriteEngine On RewriteCond %{HTTP_HOST} ^yourdomain\.com [NC] RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L] Redirecting to HTTPS on a specific folder, add the following: RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteCond %{REQUEST_URI} folder RewriteRule ^(.*)$ https://www.yourdomain.com/folder/$1 [R,L]

cPanel

[ERROR] Can’t init tc log Mariadb

By Prasad Naik

March 30, 2018

2018-03-30 2:06:19 139671858284288 [Note] InnoDB: Dumping buffer pool(s) not yet started 2018-03-30 2:06:19 139672598403328 [Note] Plugin ‘FEEDBACK’ is disabled. 2018-03-30 2:06:19 139672598403328 [Note] Recovering after a crash using tc.log 2018-03-30 2:06:19 139672598403328 [ERROR] Can’t init tc log 2018-03-30 2:06:19 139672598403328 [ERROR] Aborting Was getting above error in mysql errorlog The solution to this issue was […]

Mysql

Column count of mysql.user is wrong

By Prasad Naik

March 26, 2018

Was getting below error while trying to create mysql user in cpanel Error from MySQL query :(XID 5yuvwf) The system received an error from the “MySQL” database “mysql”: 1805 (Column count of mysql.user is wrong. Expected 43, found 39. The table is probably corrupted): The migration used a “mysqldump –all-databases” so it included the “mysql” […]

Linux

Windows OS not visible on dual boot

By Prasad Naik

March 12, 2018

We had attempted a dual boot vps on KVM based vps The os were installed using ISO First to start with windows and then linux However after installing linux the windows OS went missing ON googling around found a solution The issue was due to missing modules where we had to install module ntfs-3g [root@ohours […]

cPanel

umount: /backup: device is busy

By Prasad Naik

March 12, 2018

While trying to unmount a secondary drive I see below error umount: /backup: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) The issue was due to the drive /dev/sdb being used by some process Below is the process on how to find process […]

cPanel

The system could not create the user “triltch” because it conflicts with an unmanaged MySQL database user and an unmanaged PostgreSQL database user

By Prasad Naik

February 21, 2018

While creating a new account in server was getting below error The issue was due to mysql user already being present in server root@srv1 [~]# /scripts/wwwacct trill.com tritch hood773ud +===================================+ | New Account Info | +===================================+ | Domain: trill.com | UserName: tritch | PassWord: hood773ud +===================================+ This ok? yes Checking input data……Done Validating system setup……Done […]

cPanel

SMTP AUTH is required for message submission on port 587

By Prasad Naik

January 17, 2018

The ‘SMTP AUTH’ error usually happens when users try to send mails without properly authenticating their mail account in email clients such as Outlook or Thunderbird. What causes the error ‘SMTP AUTH is required for message submission on port 587’ in cPanel/WHM servers With the latest cPanel/WHM update, email accounts that were working fine till […]

cPanel

Your system has run out of available ip addresses, or you do not have permission to use any more ip addresses WHMCS

By Prasad Naik

December 20, 2017

While activating a new account I could see an error “Your system has run out of available ip addresses, or you do not have permission to use any more ip addresses” The issue was due to the server running out of spare dedicated IP address The issue can be resolved in 2 ways 1) Adding […]