Ubuntu

Newer versions of Kubuntu are missing the advanced mouse options which let you debounce the mouse

sudo apt install xserver-xorg-input-evdev
sudo mkdir -p /etc/X11/xorg.conf.d

Then edit /etc/X11/xorg.conf.d/xorg.conf

and append:

Section "InputClass"
    Identifier "evdev-mouse"
    MatchIsPointer "yes"
    Driver "evdev"
EndSection

You may have to reboot at this point

If the system has been corrupted, and there is no grub menu, then boot from a live CD, open a terminal and do this:

To securely wipe a hard drive of all data, do:

apt install wipe
shred -vfz -n 2 /dev/sdb

• Options above are verbose, force, zero out in an extra pass
• Number of passes: -n 2

An alternative “light” way of doing this is to simply copy random bytes

• List current tables with line numbers and stats

iptables -L INPUT --line-numbers -v

• Append another rule

iptables -A INPUT -s 58.245.23.126/24 -j DROP

• Delete rule #3

iptables -D INPUT 3

• The moment you apply IPTABLE rule it immediately becomes active.But it will not survive a reboot.
• To be able to survive IPTABLES a reboot in your network configuration file /etc/network/interfaces file (referring to a Debian/Ubuntu system) you need to add:

Make sure userid’s and groupid’s match between the systems

• e.g. usermod -u 1001 -g 504 -c "Andrew Fountain" andrewf

Set up the server

• set up the fully qualified domain name, e.g. server.example.org

vi /etc/hosts         # ensure it contains the line: 127.0.1.1 server.example.org
vi /etc/idmapd.conf   # ensure it contains the line: Domain = example.org (not the name of the server but the domain)
hostnamectl set-hostname server.example.org
#pre sytemed edit /etc/hostname manually, and also run hostname server.example.org

The most minimal way of doing an installation is using sassc, the C binding.

By default Ubuntu 16.04 (Xenial) now comes with php 7.0

You can install php 5.6 in parallel and switch between them using the following instructions:

Resources

• apt.syncthing.net Syncthing’s instructions for installing their PPA
• www.digitalocean.com/…tu-14-04 install from GitHub. Some useful tips for installing on a server

Install package from PPA (from apt.syncthing.net)

# Add the release PGP keys:
curl -s https://syncthing.net/release-key.txt | sudo apt-key add -