Zabbix Cheat Sheet
16 December 2025
4:24 pm
Background On a Zabbix server, with seemingly defaults, disk space is continuously depleted. I guess it’s poor defaults or I installed it poorly. Either way,
Knowledgebase
TrueNAS and Proxmox confusion
13 November 2025
2:16 pm
13 November 2025 At first there was only one plugin, then two, then between June and November 2025, it became 4: https://github.com/ondrejbima/freenas-proxmox https://github.com/TheGrandWazoo/freenas-proxmox https://github.com/boomshankerx/proxmox-truenas https://github.com/WarlockSyno/TrueNAS-Proxmox-VE-Storage-Plugin
When you ZFS Pool runs out on Proxmox
5 October 2025
8:45 am
Background When your ZFS pool runs out on Proxmox, your entire host and possibly many of the VMs will crash and stop working. You won’t
5.7.1 Your access to submit messages to this e-mail system has been rejected. Talos Intelligence Cisco Bullshit
4 October 2025
10:00 am
The new kid on the block with their opaque error messages in so called “spam protection” is Cisco Talos Piece of Shit Intelligence. If you
How to fix ERROR 1101 (42000) at line 123: BLOB, TEXT, GEOMETRY or JSON column ‘whatever’ can’t have a default value
2 October 2025
4:49 am
It’s probably a TEXT column with a default. For example, do this: user@example:~$ ssh -p 22 [email protected] “MYSQL_PWD=’OwMewBIaeut2fHRVrwoB’ mysql -u db_user db_name -e \”ALTER TABLE
How to mitigate the extremely popular xmlrpc.php XML-RPC attack on WHM hosted WordPress servers
26 December 2025
WordPress Is a Security Hole WordPress is a convoluted mess of security holes. Every year millions of WordPress websites are attacked because of the poor
Zabbix Cheat Sheet
16 December 2025
Background On a Zabbix server, with seemingly defaults, disk space is continuously depleted. I guess it’s poor defaults or I installed it poorly. Either way,
PHP-FPM aborts/failures on WHM/cPanel with Apache – randomly stops working – intermittently
16 December 2025
Symtoms This problem only happens on busy servers. It may or may not be preceded by these events: root@server:~# cat /opt/cpanel/ea-php82/root/var/log/php-fpm/php-fpm/error.log | grep -i rais
How to set up OpenVPN on Mikrotik
15 December 2025
Introduction Setting up OpenVPN on MikroTik should not be a mission. Unfortunately the problem doesn’t lie so much with MikroTik, but rather with the sheer
How to create or increase the swap file space for Debian or Red Hat
15 December 2025
Overview Here are bare minimal instructions on how to set up a swap file for Debian (e.g. Ubuntu Linux) and Red Hat based operating systems