https://habrahabr.ru/company/selectel/blog/331228/ – Debian 9: что нового
https://habr.com/company/selectel/blog/331228/
https://itcrowd72.ru/blog/2017[..]мои-привычные-команды – Debian 9: где мои привычные команды?

1. ifconfig

2. /etc/rc.local
nano /etc/rc.local

#!/bin/sh -e

#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

exit 0

chmod +x /etc/rc.local

systemctl start rc-local
systemctl status rc-local

3. nslookup и тд