== '''Security''' ==
 
== '''Security''' ==
   −
=== What do I have to consider when using {{Fail2ban}} ===
+
=== What do I have to consider when using {{Fail2ban}}? ===
   −
Especially on systems which provide ssh/CGI/PHP services to unknown users, it is possible to block other users from ssh and probably other services. How would a user do so? The user could issue:
+
Especially on systems which provide SSH/CGI/PHP services to unknown users, it is possible to block other users from ssh and probably other services. How would a user do so? The user could issue:
    
  logger -p auth.warning -t 'sshd[123]' 'Illegal user user1 from 1.2.3.4'
 
  logger -p auth.warning -t 'sshd[123]' 'Illegal user user1 from 1.2.3.4'
   Exception encountered, of type "Error"