Debian 10 (Buster) - Notes

debian10-notes.md

Notes for initializing a minimal Debian 10 (Buster) server

init

su -
apt-get install sudo -y
useradd user  # if user was not created on build
usermod -aG sudo user

append ports you need

sudo iptables -A INPUT -p udp --dport xxxx -j ACCEPT
sudo iptables -A INPUT -p udp --sport xxxx -j ACCEPT

or if inserting somewheres

sudo iptables -I INPUT -p tcp -m tcp --dport xxxx [--sport xxxx, if needed] -j ACCEPT

persistent iptables, follow prompt

apt-get install iptables-persistent -y

persistence for custom services

if systemd is your flavor, use your unit file at /etc/systemd/system/service.service

[Unit]
Description=Enter Description Here
Wants=network-online.target
After=syslog.target network.target

[Service]
WorkingDirectory=/opt/service-server
User=service-user
Type=forking
ExecStart=/opt/service-server/service-server.sh start initfile=ts3server.ini
ExecStop=/opt/service-server/service-server.sh stop
ExecReload=/opt/service-server/service-server.sh reload
PIDFile=/opt/service-server/service.pid

[Install]
WantedBy=multi-user.target

systemctl enable --now service.service

if init.d is your flavor, use your service file at /etc/init.d/service

#!/bin/sh
### BEGIN INIT INFO - EXAMPLE
# Provides:         service
# Required-Start:   $local_fs $network
# Required-Stop:    $local_fs $network
# Default-Start:    2 3 4 5
# Default-Stop:     0 1 6
# Description:      service Server
### END INIT INFO

######################################
# Customize values for your needs: "User"; "DIR"

USER="user"
DIR="/opt/service"

## service server start/stop script ##

case "$1" in
start)
su $USER -c "${DIR}/service_script.sh start"
;;
stop)
su $USER -c "${DIR}/service_script.sh stop"
;;
restart)
su $USER -c "${DIR}/service_script.sh restart"
;;
status)
su $USER -c "${DIR}/service_script.sh status"
;;
*)
echo "Usage: {start|stop|restart|status}" >&2
exit 1
;;
esac
exit 0

copy to service start file

cd /etc/rc3.d
ln -s ../init.d/{SERVICENAME} S95{SERVICENAME}