• Wi-Fi (Broadcom BCM4331) for an old iMac (iMac13,1) in 2026

  My Christmas project this year was to make my old 2012 iMac work; previously I have used OpenCore Legacy Patcher to keep MacOS going but that was become less useable -- Enter Linux! This note is specifically geared towards OpenSUSE Tumbleweed, but is hopefully helpful for anyone trying similar with any ...

• Home Assistant on KVM - Disable Secure Boot

  The documentation for running HAOS on KVM is pretty good but not enough for me, in fairness it state that Secure Boot is not supported, but the clues given to disable that are a little cryptic, this post are my notes.

  Preface: Some personal tweaks.

  I used the virt-install command ...

• Building Custom RUT240 Teltonika Packages

  I'm in the process of trying to see if I can get DNS over HTTPS working, my forum post didn't provide a direct answer therefore I'm going to document the build/compile/install process, at time of writing I'm not 100% sure if the package is ...

• snmpwalk v3 and snmpget v3 examples

  I always forget the syntax for snmpwalk/snmpget v3; so posting here to remember.

  snmpwalk version 3

  The command is: snmpwalk -v3 -l authPriv -u snmp-poller -a SHA -A "PASSWORD1" -x AES -X "PASSWORD1" 10.10.60.50

  Example output:

  [nick@server ~]$  snmpwalk -v3  -l authPriv -u snmp-poller -a SHA ...

• Automated Let's Encrypt Certificates

  Last month I was very pleased that I had managed an automated Let's Encrypt certificate renewal; the other night the renewal broke as the certificate was issued from a different intermediate CA, so help others out I thought I'd share with you my cron script.

  Before copy/pasting ...

• pip install crassh

  

  Recently myself (and a maybe colleague or two) has been copy/pasting parts of C.R.A.SSH (crassh) my python script for automating commands on Cisco IOS devices into personal scripts to get something done; knowing there must be a better a way I decided to turn crassh into ...

• Alpine Linux Raspberry Pi and Wireless (WiFi) firmware

  Pidora doesn't appear to be being maintained anymore and CentOS/Fedora support for the Pi appears to be focused on the version 2 hardware, so I've been looking for an alternative distro. I'm very early on in my experimentation with docker, and docker is not in anyway ...

• CentOS7 - syslog-ng: Error setting capabilities, capability management disabled; error=Operation not permitted

  I've just installed syslog-ng from epel onto a test CentOS7 box and found that the service wouldn't start, a quick verify of my syslog-ng.conf, with syslog-ng -s came back like so...

  syslog-ng: Error setting capabilities, capability management disabled; error='Operation not permitted'
  

  The debain fix suggests something ...

• Cisco NTP Authentication to Linux Server

  

  NTP Authentication is a recommended best security practice; there are a lot of documents out there on how to setup NTP authentication between two Cisco IOS devices but anything between Cisco and LINUX is few and far between.

  I have setup a LINUX Server (Redhat/CentOS) box, that will act ...

• RPM SPECS for Python CiscoConfParse

  Recently I have been using ciscoconfparse to loop through Cisco configs, installing on my local laptop is straightforward with pip however getting it onto a customers linux jump server can be a bit more tricky (proxies, build deps and the like).

  For Redhat/Centos (6) boxes I found an out ...

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