Author: Steven Protter

Upgrading mariadb cluster lab

Step 1: Back up your data. Step 2: BACK UP YOUR DATA. Step 3: BACK UP YOUR FRACKING DATA (Never watched the new Battlestar Galactica this is an f-word replacement). You might lose your data. Read the procedure and process and RELEASE notes on Mariadb web site. link as of this publish date: https://mariadb.com/kb/en/upgrading-from-mariadb-104-to-mariadb-105/ There […]

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RHCSA exam taking techniques to assist in validation & debugging

If possible go graphical. This makes opening multiple terminal windows easier. But there are more than one interface available in non-graphical mode. ctrl-alt-1-9 or function keys will give you as many debugging interfaces as you need. What do you enter in your debugging interface/session? There are other logs that might be helpful but these did […]

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Debug amavisd startup

If you have messed around with your amavisd.conf file and the daemon wont start here is a tool to discover the problem: /usr/sbin/amavisd -c /etc/amavisd/amavisd.conf debug Tested on CentOS 7 with ISPConfig. If you have an issue this will help you pinpoint it [root@instance-4 postfix]# /usr/sbin/amavisd -c /etc/amavisd/amavisd.conf debug Sep 28 06:56:04.544 instance-4.c.ndcshalom1965.internal /usr/sbin/amavisd[9764]: logging […]

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Mail stuck inbound ispconfig 3 galera cluster

Nail is stuck in the inbound que complaining about sql/mysql connect issues: Make sure hard coded passwords are the same in ispconfig.inc.php in /usr/local There are two config files with two password entries each they must be all the same. The password entries fo the mysql-*.cf files and there are a lt must be the […]

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