Go / firewall
Janusec Application Gateway, an application security solution which provides WAF (Web Application Firewall), CC attack defense, OAuth2 Authentication, private key protection, Web SSH operation, Web routing and scalable load balancing.
Lanproxy is a reverse proxy to help you expose a local server behind a NAT or firewall to the internet. it supports any protocols over tcp (http https ssh ...)
ShellHub enables teams to easily access any Linux device behind firewall and NAT.
A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.
Use your Mikrotik firewall to do fail2ban like blocking of unwanted IPs. Written in Go
A wrapper on top of Iptables to manage rules to block docker.
A Go language client for the NAT-PMP internet protocol for port mapping and discovering the external IP address of a firewall.
Go library for the Cloudflare v4 API