add fail2ban jails for ownCloud, postfix submission, roundcube, and the Mail-in-a-Box management daemon

(tests squashed into this commit by josh)

conf/fail2ban/filter.d/dovecotimap.conf

@@ -0,0 +1,22 @@
+# Fail2Ban filter Dovecot authentication and pop3/imap server
+# For Mail-in-a-Box
+
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+
+_daemon = (auth|dovecot(-auth)?|auth-worker)
+
+failregex = ^%(__prefix_line)s(pop3|imap)-login: (Info: )?(Aborted login|Disconnected)(: Inactivity)? \(((no auth attempts|auth failed, \d+ attempts)( in \d+ secs)?|tried to use (disabled|disallowed) \S+ auth)\):( user=<\S*>,)?( method=\S+,)? rip=<HOST>, lip=(\d{1,3}\.){3}\d{1,3}(, TLS( handshaking)?(: Disconnected)?)?(, session=<\S+>)?\s*$
+
+ignoreregex =
+
+# DEV Notes:
+# * the first regex is essentially a copy of pam-generic.conf
+# * Probably doesn't do dovecot sql/ldap backends properly
+#
+# Author: Martin Waschbuesch
+#         Daniel Black (rewrote with begin and end anchors)
+#         Mail-in-a-Box (swapped session=...)

conf/fail2ban/filter.d/miab-management-daemon.conf

@@ -0,0 +1,12 @@
+# Fail2Ban filter Mail-in-a-Box management daemon
+
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+
+_daemon = mailinabox
+
+failregex = Mail-in-a-Box Management Daemon: Failed login attempt from ip <HOST> - timestamp .*
+ignoreregex =

conf/fail2ban/filter.d/miab-munin.conf

@@ -0,0 +1,7 @@
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+failregex=<HOST> - .*GET /admin/munin/.* HTTP/1.1\" 401.*
+ignoreregex =

conf/fail2ban/filter.d/miab-owncloud.conf

@@ -0,0 +1,7 @@
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+failregex=Login failed: .*Remote IP: '<HOST>[\)']
+ignoreregex =

conf/fail2ban/filter.d/miab-postfix-submission.conf

@@ -0,0 +1,7 @@
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+failregex=postfix/submission/smtpd.*warning.*\[<HOST>\]: .* authentication (failed|aborted)
+ignoreregex =

conf/fail2ban/filter.d/miab-roundcube.conf

@@ -0,0 +1,9 @@
+[INCLUDES]
+
+before = common.conf
+
+[Definition]
+
+failregex = IMAP Error: Login failed for .*? from <HOST>\. AUTHENTICATE.*
+
+ignoreregex =