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-rw-r--r--roles/common/templates/etc/fail2ban/jail.local.j214
1 files changed, 14 insertions, 0 deletions
diff --git a/roles/common/templates/etc/fail2ban/jail.local.j2 b/roles/common/templates/etc/fail2ban/jail.local.j2
index 0dcab8d..b92cb7a 100644
--- a/roles/common/templates/etc/fail2ban/jail.local.j2
+++ b/roles/common/templates/etc/fail2ban/jail.local.j2
@@ -16,6 +16,10 @@ action = %(action_)s
#
# JAILS
#
+# There is no risk to lock ourself out, since traffic between our machines goes
+# through IPSec, and these packets are accepted before having a chance to enter
+# fail2ban's chain.
+#
[ssh]
@@ -47,3 +51,13 @@ banaction = iptables-allports
port = anyport
logpath = /var/log/auth.log
maxretry = 6
+
+{% if 'MX' in group_names %}
+[postfix]
+
+enabled = true
+port = smtp
+filter = postfix
+logpath = /var/log/mail.log
+maxretry = 10
+{% endif %}