deb http://ftp.debian.org/debian jessie main contrib non-free
#deb-src http://ftp.debian.org/debian jessie main contrib non-free
 
deb http://security.debian.org/ jessie/updates main contrib non-free
#deb-src http://security.debian.org/ jessie/updates main contrib non-free

# apt-get install firmware-linux
 
# apt-get install ttf-freefont ttf-mscorefonts-installer ttf-bitstream-vera ttf-dejavu ttf-liberation

Backup your actual iptables rules:

# iptables-save > /etc/iptables.rules

Create a systemd service for iptables:

# cat /etc/systemd/system/iptables.service 
[Unit]
Description=Firewall
After=network.target
 
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/sh -c "/sbin/iptables-restore < /etc/iptables.rules"
 
[Install]
WantedBy=multi-user.target

Enable the new service:

# systemctl enable iptables.service
# systemctl restart iptables.service
 
# systemctl list-unit-files | grep iptables 
iptables.service                           enabled