Tag: linux

Tmux Cheat Sheet & Quick Reference

Start a new session

tmux
tmux new
tmux new-session

Start a new session with the name mysession

tmux new -s mysession

kill/delete session mysession

tmux kill-session -t mysession

kill/delete all sessions but the current

tmux kill-session -a

kill/delete all sessions but mysession

tmux kill-session -a -t mysession

Show all sessions

tmux ls
tmux list-sessions

Attach to a session with the name mysession

tmux a -t mysession
tmux at -t mysession
tmux attach -t mysession
tmux attach-session -t mysession

Rename session

Ctrl + b $

Detach from session

Ctrl + b d

Create window

Ctrl + b c

Rename current window

Ctrl + b ,

Close current window

Ctrl + b &

Previous window

Ctrl + b p

Next window

Ctrl + b n

Switch/select window by number

Ctrl + b 0 ... 9

Scroll

Ctrl-b [
# Press q to quit scroll mode
Ctrl-b PgUp

References
https://tmuxcheatsheet.com/
https://gist.github.com/MohamedAlaa/2961058

Install .NET on Manjaro

.NET Core
If you only want to run .NET Core managed applications, install the dotnet-runtime package.
To build apps with .NET Core, install dotnet-sdk as well.
Microsoft recommends using Visual Studio Code , their Electron-based FOSS IDE, to build & debug .NET Core apps.

Tip: Add ~/.dotnet/tools to PATH, otherwise dotnet tools with not work from shell.
Mono
Install the mono package.

References
https://wiki.archlinux.org/index.php/.NET_Core
https://wiki.archlinux.org/index.php/Mono

Improve font rendering in Manjaro

sudo nano /etc/fonts/local.conf
<match target="font">
  <edit name="autohint" mode="assign">
    <bool>true</bool>
  </edit>
  <edit name="hinting" mode="assign">
    <bool>true</bool>
  </edit>
  <edit mode="assign" name="hintstyle">
    <const>hintslight</const>
  </edit>
  <edit mode="assign" name="lcdfilter">
   <const>lcddefault</const>
 </edit>
</match>
cp ~/.Xresources ~/.Xresources.bak
nano ~/.Xresources
Xft.dpi: 120
Xft.antialias: true
Xft.hinting: true
Xft.rgba: rgb
Xft.autohint: false
Xft.hintstyle: hintslight
Xft.lcdfilter: lcddefault
xrdb -merge ~/.Xresources

Make sure that Anti aliasing is On, and Hiting is set to Slight in System Settings (Appearence).

References
https://wiki.manjaro.org/index.php?title=Improve_Font_Rendering

Install Tor with torsocks and proxychains on Ubuntu 18.04

sudo apt install tor torsocks proxychains
tor --hash-password "passwordhere"

CookieAuthentication OR HashedControlPassword (if you choose to uncomment HashedControlPassword, copy the hashed password you got in the previous step and paste it next to HashedControlPassword in the torrc file)

nano /etc/tor/torrc
# This provides a port for our script to talk with. If you set this then be
# sure to also set either CookieAuthentication *or* HashedControlPassword!
#
# You could also use ControlSocket instead of ControlPort, which provides a
# file based socket. You don't need to have authentication if you use
# ControlSocket. For this example however we'll use a port.

ControlPort 9051 # <--- uncomment this ControlPort line

# Setting this will make Tor write an authentication cookie. Anything with
# permission to read this file can connect to Tor. If you're going to run
# your script with the same user or permission group as Tor then this is the
# easiest method of authentication to use.

CookieAuthentication 1 #either uncomment this or below HashedControlPassword line

# Alternatively we can authenticate with a password. To set a password first
# get its hash...
#
# % tor --hash-password "my_password"
# 16:E600ADC1B52C80BB6022A0E999A7734571A451EB6AE50FED489B72E3DF
#
# ... and use that for the HashedControlPassword in your torrc.

HashedControlPassword 16:E600ADC1B52C80BB6022A0E999A7734571A451EB6AE50FED489B72E3DF #if you choose to uncomment this line, paste your hashed password here
sudo /etc/init.d/tor restart

Test

curl 'https://api.ipify.org'
torsocks curl 'https://api.ipify.org'
proxychains curl 'https://api.ipify.org'

References
https://www.linux.com/blog/beginners-guide-tor-ubuntu%20

Make iptables rules persistent after reboot on Ubuntu 18.04

sudo apt install iptables-persistent netfilter-persistent

systemctl enable netfilter-persistent
netfilter-persistent save
netfilter-persistent start

iptables-save  > /etc/iptables/rules.v4
ip6tables-save > /etc/iptables/rules.v6

iptables-restore  < /etc/iptables/rules.v4
ip6tables-restore < /etc/iptables/rules.v6

systemctl stop    netfilter-persistent
systemctl start   netfilter-persistent
systemctl restart netfilter-persistent

Remove persistent iptables rules

To remove persistent iptables rules simply open a relevant /etc/iptables/rules.v* file and delete lines containing all unwanted rules.

References
https://askubuntu.com/questions/1052919/iptables-reload-restart-on-ubuntu-18-04
https://linuxconfig.org/how-to-make-iptables-rules-persistent-after-reboot-on-linux