sshguard

Install command:
brew install sshguard

Protect from brute force attacks against SSH

https://www.sshguard.net/

/api/formula/sshguard.json (JSON API)

Formula code on GitHub

Bottle (binary package) installation support provided for macOS releases:

Intel x86_64 big sur, catalina, mojave, high sierra
Apple Silicon big sur

Current versions:

stable 2.4.1
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 16
Installs on Request (30 days)
sshguard 15
Build Errors (30 days)
sshguard 0
Installs (90 days)
sshguard 65
Installs on Request (90 days)
sshguard 62
Installs (365 days)
sshguard 342
Installs on Request (365 days)
sshguard 301
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