sshguard

Install command:

brew install sshguard

Protect from brute force attacks against SSH

https://www.sshguard.net/

License: ISC

Formula JSON API: /api/formula/sshguard.json

Formula code: sshguard.rb on GitHub

Bottle (binary package) installation support provided for:


macOS on Apple Silicon	sequoia	✅
	sonoma	✅
	ventura	✅
macOS on Intel	sonoma	✅
macOS on Intel	ventura	✅

Linux	ARM64	✅
Linux	x86_64	✅

Current versions:

stable	✅	2.5.1
head	⚡️	HEAD

Add the following lines to /etc/pf.conf to block entries in the sshguard
table (replace $ext_if with your WAN interface):

table <sshguard> persist
block in quick on $ext_if proto tcp from <sshguard> to any port 22 label "ssh bruteforce"

Then run sudo pfctl -f /etc/pf.conf to reload the rules.

Analytics:

Installs (30 days)
`sshguard`	10
Installs on Request (30 days)
`sshguard`	10
Build Errors (30 days)
`sshguard`	0
Installs (90 days)
`sshguard`	82
Installs on Request (90 days)
`sshguard`	82
Installs (365 days)
`sshguard`	169
Installs on Request (365 days)
`sshguard`	169