Setting Up a New VPS

First Things First

• update
• change root password if not set already

Add User with sudo Privileges

adduser vpsadmin
usermod -aG sudo vpsadmin

SSH Setup

In /etc/ssh/sshd_config:

Port 62222
Protocol 2
PermitRootLogin no
AllowUsers vpsadmin

Use Keys for Auth with passphrase and name for key:

ssh-keygen -N 'securepassphrase' -t ed25519 -C 'mycomputer'
chmod 0600 /home/vpsadmin/.ssh/authorized_keys

optionally set PasswordAuthentication no in /etc/ssh/sshd_config

Add Alias on Client in ~/.ssh/config:

Host 1.1.1.1
  User vpsadmin
  IdentityFile ~/.ssh/id_ed25519
  IdentitiesOnly yes
  Port 62222

Remove AcceptEnv LANG LC_* to silence perl LC warnings

Firewall Setup

ufw allow 62222/tcp
ufw enable

Setup Hostname

hostnamectl set-hostname newhostname

In /etc/hosts:

127.0.1.1 newhostname

Change Shell

apt install zsh
chsh -s $(which zsh)

Install omz:

sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

set theme in .zshrc:

ZSH_THEME=bira

Install Essential Packages

git zellij