From d363522c15b1d1ce61b2780a539dd09e2e679d34 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Sun, 1 Dec 2013 23:51:28 +0100
Subject: Configure the MX:es.

---
 roles/common/templates/etc/fail2ban/jail.local.j2 | 14 ++++++++++++++
 roles/common/templates/etc/iptables/services.j2   |  8 ++++++--
 roles/common/templates/etc/postfix/main.cf.j2     |  4 ++++
 3 files changed, 24 insertions(+), 2 deletions(-)

(limited to 'roles/common/templates/etc')

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 %}
diff --git a/roles/common/templates/etc/iptables/services.j2 b/roles/common/templates/etc/iptables/services.j2
index b1b7f0f..8a9409d 100644
--- a/roles/common/templates/etc/iptables/services.j2
+++ b/roles/common/templates/etc/iptables/services.j2
@@ -5,9 +5,13 @@
 # (in|out|inout)[46]?    (tcp|udp|..) (port|port:port|port,port)  (port|port:port|port,port)
 
 inout   udp     500    500                              # ISAKMP
-
-in      tcp     {{ ansible_ssh_port|default('22') }}    # SSH
+#inout   udp     4500    4500    # IPSec NAT Traversal
 
 out     tcp     80,443                                  # HTTP/HTTPS
 out     udp     53                                      # DNS
 out     udp     67                                      # DHCP
+
+in      tcp     {{ ansible_ssh_port|default('22') }}    # SSH
+{% if 'MX' in group_names %}
+in      tcp     25                                      # SMTP
+{% endif %}
diff --git a/roles/common/templates/etc/postfix/main.cf.j2 b/roles/common/templates/etc/postfix/main.cf.j2
index 59bf0ba..a856843 100644
--- a/roles/common/templates/etc/postfix/main.cf.j2
+++ b/roles/common/templates/etc/postfix/main.cf.j2
@@ -1,9 +1,13 @@
 ########################################################################
 # Nullmailer configuration
+#
+# {{ ansible_managed }}
+# Do NOT edit this file directly!
 
 smtpd_banner     = $myhostname ESMTP $mail_name (Debian/GNU)
 biff             = no
 readme_directory = no
+mail_owner       = postfix
 
 myorigin            = /etc/mailname
 myhostname          = {{ ansible_fqdn }}
-- 
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