Just watching things scroll by as they upgrade
Doing an Ubuntu on a Microsoft Cache for Fiber Data Internet Exchange (FD-IX). Nothing exciting, just following directions by people smarter than myself.
Mass Deleteing hosts in LibreNMS
I recently worked on a network where we re-piped around four hundred hosts. These four hundred hosts were being monitored by LibreNMS. The question is how to delete this many hosts. I credit https://www.incredigeek.com/home/librenms-bulk-delete/ for this tutorial. I will only add that …
LibreNMS new install and all devices were in warn
I recently installed LibreNMS for monitoring some LTE clients. These clients reboot every morning at 3am. This is important to know. When I added them, they all showed up in a warning state. Some google searches said this was due …
DNS in ISP networks and why you should care
If you are not familiar with how DNS works, please go and read this article and watch the accompanying video. In this article we will talk about the different types of DNS servers an ISP will encounter and the design …
RAID Drive level comparison
Quick chart showing the differences between different raid levels in servers and storage.
DNS shotgun for DNS testing
DNS Shotgun is capable of simulating real client behaviour by replaying captured traffic over selected protocol(s). The timing of original queries as well as their content is kept intact. https://dns-shotgun.readthedocs.io/en/stable/key-concepts/
Server Tip from a non-server guy
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this …
LibreNMS syslog.ibd cleanup
Recently I ran into an issue where a librenms install was taking up a crazy amount of disk space. This was tracked down to the syslog.ibd file . Even thought I had set my options to be less than 10 …
PHP 7.3 and 7.4 Woes and solution
So this weekend I have been doing some LibreNMS installs and have been having to change the default CentOS PHP version. If it is Centos7 PHP 7.3 is recommend and if it’s Centos 8 then PHP 7.4 is recommended. I …
Some WordPress tips
If you are wanting to force non SSL to SSL. Add the following to your site’s .htaccess file Set proper file permissions Script from https://www.ryadel.com/en/set-file-system-permissions-wordpress-web-site-centos-7-chmod/ # # This script configures WordPress file permissions based on recommendations # from http://codex.wordpress.org/Hardening_WordPress#File_permissions # …