fix: repeat interval for ban hammer (#10)

fix: ipv6/4 detection - cater for internal layout always being 16 bytes

Firewall ipv6 (#8)

* chore: test ipv4/6 before writing reject rule

* feat: use a drop rule rather than a reject rule for tempban

Update README.md

Merge pull request #5 from gnanderson/cleanup-pass

Cleanup pass

Merge pull request #4 from gnanderson/firewall-rule

Firewall rule

Update README.md

Merge pull request #1 from gnanderson/whitelist

Whitelist support

chore: update go modules