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Database error on roundcube on CWP Panel

By PrasadNaik
June 25, 2026

While rest of the website were working fine and while accessing my email account via auto-login it was showing an error Database error connection failed Please contact server administrator After checking the logs in /usr/local/cwpsrv/var/services/roundcube/logs/errors.log found the error due to missing table roundcube.carddav_addressbook 18-Jun-2026 19:39:09 +0000]: <3c79m5k8> DB Error: [1146] Table ’roundcube.carddav_addressbooks’ doesn’t exist (SQL […]

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Magento error Invalid command ‘

By PrasadNaik
December 23, 2018

Invalid command ‘<IfVersion’, perhaps misspelled or defined by a module not included in the server configuration The above error is due to missing mod_version which needs to be added in apache using easyapache it was fixed once the mod_version module was added          

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How to add multiple ips in centos 7

By PrasadNaik
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 […]

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Redirecting HTTP to HTTPS

By PrasadNaik
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]

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[ERROR] Can’t init tc log Mariadb

By PrasadNaik
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 […]

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Windows OS not visible on dual boot

By PrasadNaik
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 […]

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umount: /backup: device is busy

By PrasadNaik
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 […]

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SMTP AUTH is required for message submission on port 587

By PrasadNaik
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 […]

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

By PrasadNaik
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 […]

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