diff --git a/how_to b/how_to
index 479ffa9..e9d150d 100644
--- a/how_to
+++ b/how_to
@@ -232,10 +232,17 @@ Sync from phone:
     adb-sync -R /sdcard/<folder>/ <dest>
 
 fail2ban unban:
+    Check if/where IP is banned
+        iptables -L -n | less
+            /<ip>
     With Fail2Ban before v0.8.8:
         fail2ban-client get YOURJAILNAMEHERE actionunban IPADDRESSHERE
     With Fail2Ban v0.8.8 and later:
         fail2ban-client set YOURJAILNAMEHERE unbanip IPADDRESSHERE
+    When all else fail (/!\ Careful with this one /!\):
+        iptables -S | grep <ip>
+        # Remove leading "-A "
+        iptables -D <rule>
 
 Pretty log pager:
     lnav