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--- wiki:fail2ban_examples [2022/12/29 09:11] – add Not banning after action change antisa
+++ wiki:fail2ban_examples [2024/03/06 13:02] (current) – add example of dry run antisa
@@ Line 51: / Line 51: @@
 </WRAP>
+===== Testing =====
+==== regex ====
 Use ''fail2ban-regex'' to check if its matching the regex. Here is an example of match
@@ Line 90: / Line 93: @@
 .21.21.1 - - [27/Dec/2022:11:57:15 +0100] "GET / HTTP/1.1" 304 0 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:108.0) Gecko/20100101 Firefox/108.0"
 </code>
+==== dry run ====
+Use action ''dummy.conf'' from //action.d/// directory to see what would be banned. E.g.
+  [bottest]
+  enabled  = true
+  maxretry = 4
+  findtime = 60s
+  bantime  = 60s
+  action   = dummy
+  #action   = iptables[name=bloKKKED, port=http]
+  logpath  = %(nginx_access_log)s
+Then ''cat /var/run/fail2ban/fail2ban.dummy'' to see what IPs would be banned.
 ====== Troubleshooting ======