[SSHGuard-users] rev 1.7.0 not blocking all worthy of blocking

[<li...@la...>]

Looking at the log, 162.144.102.19 is worthy of blocking, but it wasn't
blocked.

FreeBSD theranch 10.2-RELEASE-p18 FreeBSD 10.2-RELEASE-p18 #0: Sat May
28 08:53:43 UTC 2016

# ipfw table 22 list
23.96.234.230/32 0
123.57.174.156/32 0
180.153.88.54/32 0
182.18.34.76/32 0

Jul 28 04:48:34 theranch sshd[16612]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 04:48:35 theranch sshd[16612]: Connection closed by 162.144.102.19 [preauth]
Jul 28 04:52:03 theranch sshd[16629]: Received disconnect from 121.18.238.29: 11:  [preauth]
Jul 28 05:00:00 theranch sshguard[1242]: Reloading rotated file /var/log/maillog.
Jul 28 05:04:34 theranch sshd[16695]: Received disconnect from 121.18.238.22: 11:  [preauth]
Jul 28 05:09:54 theranch sshd[16735]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 05:09:54 theranch sshd[16735]: Connection closed by 162.144.102.19 [preauth]
Jul 28 05:28:35 theranch sshd[16813]: Received disconnect from 221.194.44.216: 11:  [preauth]
Jul 28 05:31:02 theranch sshd[16825]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 05:31:03 theranch sshd[16825]: Connection closed by 162.144.102.19 [preauth]
Jul 28 05:37:51 theranch sshd[16851]: Received disconnect from 221.194.44.194: 11:  [preauth]
Jul 28 05:52:22 theranch sshd[16917]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 05:52:22 theranch sshd[16917]: Connection closed by 162.144.102.19 [preauth]
Jul 28 06:00:00 theranch sshguard[1242]: Reloading rotated file /var/log/dovecot.log.
Jul 28 06:00:50 theranch sshd[16994]: Did not receive identification string from 23.96.234.230
Jul 28 06:05:36 theranch sshd[17014]: Invalid user z from 23.96.234.230
Jul 28 06:05:36 theranch sshd[17014]: input_userauth_request: invalid user z [preauth]
Jul 28 06:05:36 theranch sshd[17014]: Received disconnect from 23.96.234.230: 11: Bye Bye [preauth]
Jul 28 06:05:37 theranch sshguard[1242]: blacklist: added 23.96.234.230
Jul 28 06:05:37 theranch sshguard[1242]: 23.96.234.230: blocking forever (3 attacks in 287 secs, after 1 abuses over 287 secs)
Jul 28 06:14:12 theranch sshd[17062]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 06:14:12 theranch sshd[17062]: Connection closed by 162.144.102.19 [preauth]
Jul 28 06:17:24 theranch sshd[17069]: fatal: Read from socket failed: Connection reset by peer [preauth]
Jul 28 06:18:24 theranch sshd[17073]: Received disconnect from 121.18.238.19: 11:  [preauth]
Jul 28 06:35:23 theranch sshd[17150]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 06:35:23 theranch sshd[17150]: Connection closed by 162.144.102.19 [preauth]
Jul 28 06:56:47 theranch sshd[17210]: reverse mapping checking getaddrinfo for 162-144-102-19.unifiedlayer.com [162.144.102.19] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul 28 06:56:47 theranch sshd[17210]: Connection closed by 162.144.102.19 [preauth]