sshguard

brew install sshguard v2.5.1 ISC

Protect from brute force attacks against SSH

30-day installs · #11351

90-day · #8763

150

365-day · #8122

Caveats

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.

Raw metadata

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  "caveats": "Add the following lines to /etc/pf.conf to block entries in the sshguard\ntable (replace $ext_if with your WAN interface):\n\n  table \u003csshguard\u003e persist\n  block in quick on $ext_if proto tcp from \u003csshguard\u003e to any port 22 label \"ssh bruteforce\"\n\nThen run sudo pfctl -f /etc/pf.conf to reload the rules.\n",
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sshguard

Links

Caveats