arvati

// mithrilFire usage demo
// using firebase database "dinosaur-facts"

var Dinosaurs = {
	model: function() {
		// return a firebase reference to our database
		return new Firebase('https://dinosaur-facts.firebaseio.com');
	},
	controller: function() {
		var data = Dinosaurs.model();

arvati

Exposing a directory on the host machine to an LXC container

1. Log into the container and create an empty directory, this will be the mount point
2. Log out and stop the container.
3. Open to your container's config file
   • For regular LXC containers: /var/lib/lxc/mycontainer/config
   • For unprivileged LXC containers: $HOME/.local/share/lxc/mycontainer/config
4. Add a new line above the lxc.mount directive, that follows the format below. Substitute proper paths as necessary:
   • lxc.mount.entry = /path/to/folder/on/host /path/to/mount/point none bind 0 0

• Both of these paths are relative to the host machine.

arvati

Make a dynamic motd for your server

create a crond script to dynamic create an motd message to users

rc-service crond start && rc-update add crond
nano /etc/periodic/15min/motd
chmod a+x /etc/periodic/15min/motd
run-parts --test /etc/periodic/15min

Contents of /etc/periodic/15min/motd

arvati

Como atualizar fork com as mudanças do original

Adicione um novo remote; pode chamá-lo de "upstream":

git remote add upstream https://github.com/usuario/projeto.git

Obtenha todos os branches deste novo remote, como o upstream/master por exemplo:

git fetch upstream

Certifique-se de que você está no branch master:

arvati

ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/id_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/github_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/mozilla_rsa

arvati

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

arvati

SMBNetFS

Install and setup

sudo apt-get install smbnetfs
mkdir ~/.smb
cp /etc/smbnetfs/smbnetfs.conf ~/.smb
cp /etc/samba/smb.conf ~/.smb

arvati

#GNU Screen Cheat Sheet

##Basics

• ctrl a c -> cre­ate new win­dow
• ctrl a A -> set win­dow name
• ctrl a w -> show all win­dow
• ctrl a 1|2|3|… -> switch to win­dow n
• ctrl a " -> choose win­dow
• ctrl a ctrl a -> switch between win­dow
• ctrl a d -> detach win­dow

arvati

pass tools browserpass and qtpass using windows wsl wrappers

Inside wsl Alpine v3.12

sudo apk update
sudo apk add browserpass pass nano
cd ~/
wget https://gist.github.com/arvati/1d9ae3091017e3ba1209fd76552cd344/raw/44c4af0f86e056e94954580943d2980741f02ff5/pinentry-wsl-ps1.sh
chmod ug=rx pinentry-wsl-ps1.sh
#echo "pinentry-program /home/$USER/pinentry-wsl-ps1.sh" >> ~/.gnupg/gpg-agent.conf
echo "pinentry-program \"/mnt/c/Program Files/Git/usr/bin/pinentry.exe\"" >> ~/.gnupg/gpg-agent.conf

arvati

Setting up Qemu with a tap interface

There are two parts to networking within QEMU:

• The virtual network device that is provided to the guest (e.g. a PCI network card).
• The network backend that interacts with the emulated NIC (e.g. puts packets onto the host's network).

Example: User mode network