This is a little off my usual topic of IT Security but it's something I've been thinking about a bit lately. I recently came across the "One hundred prisoners and a light bulb" riddle. It was posed as:

A group of 100 prisoners, all together in the prison dining area …

I first started playing with ownCloud back in early 2012 with version 3, and started using it seriously in mid 2014 as my main tool for syncing my Calendar, Contacts and files having migrated away from Google's Calendar/Contacts/Drive.

But one of my biggest complaints was the update mechanism …

SSH is an amazing tool, I use it all the time and not just for logging into remote computers, but also to create tunnels, copy files and access git repositories.

But I don't want to have to remember fidily commands something like ssh I2P_Router is so much nicer than something …

This is another one of those things I've done all this several times before, but need to keep looking up the documentation.

To login to PostgreSQL after a fresh installation¹ you need to change to the postgres user and run psql (no password needed, it uses Peer Authentication)

sudo …

Below is an example of the IP Tables script I use on many of my servers. The names and IP addresses have been changed to reserved addresses and obviously it needs to be tweaked each time for relevent rules.

#!/bin/bash

# This script is symlinked to /etc/network/if-pre-up.d …