Installing Apps from Plesk Application Vault Hangs

When the WordPress Install button is pressed (including the custom install option) in Application Vault, a progress bar is shown but never changes from 0%. Log into Plesk. Try installing the app. Here, the notification bar shows: Please wait…. 0%. This bar may remain the same for several hours with nothing happening. Cause A large number … Read more

Adding DKIM to Postfix

DKIM on Postfix: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-dkim-with-postfix-on-debian-wheezy The configuration can be tested by sending an empty email to check-auth@verifier.port25.com and a reply will be received. If everything works correctly you should see DKIM check: pass under Summary of Results. ========================================================== Summary of Results ========================================================== SPF check: pass DomainKeys check: neutral DKIM check: pass Sender-ID check: pass SpamAssassin check: … Read more

Monitor MySql with Zabbix

How to configure the zabbix on the agent side to allow mysql data to populate in zabbix. Ssh to the server you want to monitor – the one with the zabbix agent installed on. Check that your zabbix_agent config file is including the path “/etc/zabbix/zabbix_agentd.d/”: Look towards the the end of file: Check where your … Read more

Diagnosing Network Issues with MTR

On CentOS and Fedora systems you will want to issue the following commands to update repositories, upgrade installed packages, and install the MTR program: To test the route and connection quality of traffic to the destination host example.com, run the following command from the desired source host: Reading MTR Reports Because MTR reports contain a … Read more

List sizes of MySQL databases

Do you wonder which databases are actually taking up how much space but only have one huge ibdata1 in your /var/lib/mysql and the directories inside your mysql data directory don’t represent the actual database sizes? Run from a mysql root console: mysql> SELECT table_schema AS “Database name”, SUM(data_length + index_length) / 1024 / 1024 AS … Read more

Mount Slaved Drive

Sometimes your OS needs to be reinstalled by your datacenter. This means that you need to mount the slaved drive in order to copy the data to the new OS drive. Here is a typical example: Login to the server and run the following to see whats mounted: As we can see above, there is … Read more

MySQL does not start after an Plesk update (14-March, 2017)

Note: article describes the issue caused by MySQL update from Atomic repository, make sure you have Atomic repository enabled before applying fix: After update MySQL cannot be started. In Plesk the following error message is shown: or There are no records in /var/log/mysqld.log Cause Atomic issued broken mysql package to their repositories. During updates installation … Read more