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Finding listening ports on any operating system
ss - the new netstat # show number listening process ss -nlp | grep -e ^tcp -e ^tcp6 -e ^...
PoE Budgets and Specs
hEX PoE (RB960PGS) and PowerBox Pro (RB906PGS-PB) 5 Gigabit Ethernet ports, 1 Gigabit SFP ca...
Blocking .zip domains with DNS proxy
Background https://www.youtube.com/watch?v=V82lHNsSPww Use Mikrotik DNS proxy for blocking The...
Failover for type=FWD entries in the RouterOS DNS proxy
The Mikrotik DNS resolver supports static entries with type=FWD (forward). Combining this with th...
Notes
Stream packet sniffer to Wireshark Start a promiscuous capture with filter "udp port 37008" S...
Recursion without recursion to enable forward zones
Problem I need to add a forward zone to an authoritative bind9 server, but forward zones don'...
Video links
YouTube video links Mobile Standards Evolution: FDMA, TDMA (3G), CDMA, OFDMA 802.11ac MU-MIMO...
Sharing a DYMO LabelWriter 450 Twin Turbo using CUPS and SAMBA
I wanted to if I could use a Raspberry Pi Zero W 1.1 to be a wireless USB print server for my DYM...
Optimization with Aikar's flags
Making a copy of this information. Reference sources: aikar.co:tuning-the-jvm-g1gc-garbage-co...
SystemD
The two files below are the merger of other Minecraft SystemD service files I came across on the ...
ProFTPd and SFTP
Ubuntu 22.04 Install proftpd-basic Edit /etc/proftpd/modules.conf and enable mod_sftp and mod...
Netplan, Bonding, and VLANs
Creating a bond interface with Netplan The example below shows two Ethernet interfaces bonded us...
WiFi Regulatory Notes
More notes to come. For now, these are random useful illustrations from around the web. ...
Learning Resources
rustup toolchain installer book: the rust programming language rust by example rustlings
Axis camera packet capture
Download network trace Source According to documentation this can be done via the URL below, as...
Polycom
Polycom SIP TLS with custom CA The config files below show how to add a custom CA certificate (c...
Batteries
Lithium Ion Voltage vs. Charge Status Original Source 4.2V – 100% 4.1V – 87% 4.0V – 75% 3.9V...
NodeJS
Process Management pm2 - Advanced, production process manager for Node.js ORM for Node.js ...
Password recovery
Reset lost root password /etc/init.d/mysqld stop mysqld_safe --skip-grant-tables --skip-netwo...
Using cursors in stored procedures
The MySQL code below is from a stackoverflow answer. It provides a design pattern with detailed e...