My regex to fail2ban for dovecot 2.0beta5 in user in sql base work like this!
failregex = dovecot: auth: sql.*,<HOST>.*: Password mismatch
dovecot: auth: sql.*,<HOST>.*: unknown user
And if you use smtp-auth in postfix truth dovecot here it is my regex for it
failregex = warning:.*\[<HOST>.*: SASL login authentication failed:.*
Sorry if this is not what you want!
[]'sf.rique
On Fri, Jun 11, 2010 at 2:00 AM, Jerrale Gayle < jerralegayle@sheltoncomputers.com> wrote:
Yeah, you're wrong. With regexp, you can have fail2ban ignore any part of the log file, as in ANYTHING containing text around anything will be caught. You can have fail2ban ban every ip address that shows up in the log!
On 6/10/2010 5:38 PM, fakessh wrote:
"hi dovecot network
the principle of fail2ban is repeated for connections with the same login fail2ban does not work if the attack changes to login every time this type of attack is rather to find valid user accounts"
I may be wrong, I hope I too am a victim of this kind of attacks
Yeah, you're wrong. With regexp, you can have fail2ban ignore any part of
the log file, as in ANYTHING containing text around anything will be caught. You can have fail2ban ban every ip address that shows up in the log!