evolix/minifirewall
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minifirewall/README.md
Tristan PILAT 129b323f80 First nftables version of minifirewall
2020-08-24 16:59:15 +02:00

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Minifirewall

Minifirewall is shellscripts for easy firewalling on a standalone server we used nftables https://wiki.nftables.org/ designed for recent Linux kernel See https://gitea.evolix.org/evolix/minifirewall

Install

install -m 0700 minifirewall.service /etc/systemd/system/minifirewall.service
install -m 0700 minifirewall-start.sh /usr/local/sbin/minifirewall-start.sh
install -m 0700 minifirewall-stop.sh /usr/local/sbin/minifirewall-stop.sh
install -m 0600 minifirewall.conf /etc/default/minifirewall

Config

Edit /etc/default/minifirewall file:

  • If your interface is not eth0, change INT variable
  • Modify INTLAN variable, probably with your IP/32 or your local network if you trust it
  • Set your trusted and privilegied IP addresses in TRUSTEDIPS and PRIVILEGIEDIPS variables
  • Authorize your +public+ services with SERVICESTCP1 and SERVICESUDP1 variables
  • Authorize your +semi-public+ services (only for TRUSTEDIPS and PRIVILEGIEDIPS ) with SERVICESTCP2 and SERVICESUDP2 variables
  • Authorize your +private+ services (only for TRUSTEDIPS ) with SERVICESTCP3 and SERVICESUDP3 variables
  • Configure your authorizations for external services : DNS, HTTP, HTTPS, SMTP, SSH, NTP

Usage

systemctl start/stop/restart minifirewall.service

If you want to add minifirewall in boot sequence:

systemctl enable minifirewall

License

This is an Evolix project and is licensed under the GPLv3, see the LICENSE file for details.