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Enable SSH

sudo systemctl enable ssh
sudo systemctl start ssh
sudo systemctl status ssh

add user

sudo useradd username -m -d /home/username
sudo passwd username
# add user to /etc/sudoers

add search path

  • export PATH=.:$PATH
  • nano ~/.bashrc
  • echo 'export PATH=.:$PATH' >> ~/.bashrc
  • source .bashrc

add nameserver

  • sudo nano /etc/resolv.conf
    • nameserver 8.8.8.8
    • nameserver 168.95.1.1

dig mail server

  • dig 8.8.8.8 mx

trace

  • dig +trace csu.edu.tw