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Below are links to various software I use. Software is free / open-source unless otherwise noted. Unclassified draw.io - diagram / flow charting PlantUML plugin for Visual Studio Code (jebbs) - building sequence diagrams SimpleMind - Mind Mapping - $$$ ...

Generic client template [Interface] PrivateKey = xxx Address = 192.168.170.X/24 [Peer] PublicKey = yyy PreSharedKey = zzz AllowedIPs = 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 Endpoint = router.domain.com:13231 PersistentKeepalive = 25 Ubuntu ...

Recursive routing allows you to create a route with a defined next hop that is not actually directly adjacent to the router. The working example configurations below assume three distinct Internet connections from three different providers. Each connection is...

I wanted to if I could use a Raspberry Pi Zero W 1.1 to be a wireless USB print server for my DYMO LabelWriter 450 Twin Turbo. Here's what I learned and how to make it work. These steps should be the same regardless of server or operating system (Debian, Raspb...

Basics Arrays in RouterOS can be normal indexed arrays or associative (key/value pair arrays). Create empty array and adding entries Two ways to create an empty array: { :put "Creating and adding to global emptyArray1"; :global emptyArray1 [{}]; :set em...

IPv4 ARP -> IPv6 Neighbors netsh interface ipv6 show neighbors # OUTPUT: Interface 16: Wi-Fi Internet Address Physical Address Type - - - - - - - - - - - - - - - - - - - - fe80::2a80:88ff:efcd:8a41 28-80-88-dc-6a-41 Reac...

Ubuntu 22.04 Install proftpd-basic Edit /etc/proftpd/modules.conf and enable mod_sftp and mod_sftp_pam Edit /etc/proftpd/sftp.conf (see example below) Edit /etc/proftpd/proftpd.conf and enable the sftp.conf include Create sftproot folders in user home d...

The two files below are the merger of other Minecraft SystemD service files I came across on the web and the screen-based method I originally used for running Minecraft instances. Here's a breakdown of the processes that facilitate automatically loading the M...

Making a copy of this information. Reference sources: aikar.co:tuning-the-jvm-g1gc-garbage-collector-flags-for-minecraft PaperMC:aikars-flags Pufferfish.host:how-to-apply-aikars-flags TL;DR Use these flags exactly, only changing Xmx and Xms. These fl...

YouTube video links Mobile Standards Evolution: FDMA, TDMA (3G), CDMA, OFDMA 802.11ac MU-MIMO OFDMA vs. MU-MIMO in Wi-Fi 6 2G vs 3G vs 4G vs 5G Generation Technology standard Radio access technology 1G – First Generation AMPS, NMT,...

Background https://www.youtube.com/watch?v=V82lHNsSPww Use Mikrotik DNS proxy for blocking The code snippet below will cause a Mikrotik DNS proxy to return 127.255.255.127 for all .zip domains, including all subdomains. /ip dns static add address=127.255....

  Problem I need to add a forward zone to an authoritative bind9 server, but forward zones don't appear to work with recursion disabled, and I don't want to turn this server into an open resolver. Solution Turn the server into an open resolver, but delete ...

hEX PoE (RB960PGS) and PowerBox Pro (RB906PGS-PB) 5 Gigabit Ethernet ports, 1 Gigabit SFP cage SFP cage is not connected to the switch chip. Wire-speed switching on the SFP port is not supported Single core 400 Mhz, 128 MB RAM, 16 MB flash Port 1...

Sources: 1 Quick reference 120V 15 amp circuits Normal 15 amp grounded circuits use 5-15P plugs and 5-15R receptacles 120V 20 amp circuits 5-20P plugs and 5-20R receptacles 120V 30 amp These are typically going to require twist-lock style plugs and ...

Installing insync using modern key management The vendor's instructions for installing via the apt package manager use the deprecated apt-key package manager.  The installation instructions below use current methods of leveraging the signing key without the v...

Occasionally on Ubuntu 22.04 I've experienced the error message shown below when trying to connect to a server using an ssh key: $ ssh user@server.com -i ~/.ssh/id_ed25519 Load key "id_ed25519": error in libcrypto I finally realized the problem was the pre...

    ss - the new netstat # show number listening process ss -nlp | grep -e ^tcp -e ^tcp6 -e ^udp -e ^udp6 Output udp UNCONN 0 0 127.0.0.53%lo:53 0.0.0.0:* users:(("systemd-resolve",pid=1985,fd=13)...

While trying out Ubuntu 23.04 via Ubuntu Sway Remix 23.04, I've noticed a lot of issues with blurry programs. After doing some research, I've found that this is due to applications using the X11 protocols to access the display via Xwayland instead of using the...

Ubuntu Sway Remix Recording changes I make to the default configuration in Ubuntu Sway Remix bind keys # /etc/sway/modes/default.conf $bindsym Ctrl+Alt+delete exec nwg-bar -x brightness control # from /etc/sway/variables # brightness control - very ...

For being mostly free (at most $45), Mikrotik's The Dude monitoring system is on of the most useful network monitoring tools any IT group could possibly deploy. Here's some customizations I regularly use. Notifications Templates The are notification temp...