From 4bd4d20533aad60bbc267a9aff22c8cdb2e9154d Mon Sep 17 00:00:00 2001 From: Quentin Dufour Date: Mon, 13 Jul 2020 19:55:22 +0200 Subject: [PATCH 1/2] Simplify iptables --- ansible/roles/network/templates/rules.v4.j2 | 36 --------------------- 1 file changed, 36 deletions(-) diff --git a/ansible/roles/network/templates/rules.v4.j2 b/ansible/roles/network/templates/rules.v4.j2 index cb935e8..9f47ae9 100644 --- a/ansible/roles/network/templates/rules.v4.j2 +++ b/ansible/roles/network/templates/rules.v4.j2 @@ -1,41 +1,8 @@ -# WARNING!! When rules.{v4,v6} are changed, the whole iptables configuration is reloaded. -# This creates issues with Docker, which injects its own configuration in iptables when it starts. -# In practice, most (all?) containers will break if rules.{v4,v6} are changed, -# and docker will have to be restared. - - *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] -# DNS --A INPUT -p udp --dport 53 -j ACCEPT --A INPUT -p tcp --dport 53 -j ACCEPT - -# Email --A INPUT -p tcp --dport 993 -j ACCEPT --A INPUT -p tcp --dport 25 -j ACCEPT --A INPUT -p tcp --dport 465 -j ACCEPT --A INPUT -p tcp --dport 587 -j ACCEPT - -# Old SSH configuration --A INPUT -p tcp --dport 110 -j ACCEPT - -# New SSH configuration --A INPUT -p tcp --dport 22 -j ACCEPT - -# LDAP --A INPUT -p tcp --dport 389 -j ACCEPT - -# Web --A INPUT -p tcp --dport 80 -j ACCEPT --A INPUT -p tcp --dport 443 -j ACCEPT - -# Jitsi --A INPUT -p tcp --dport 8080 -j ACCEPT --A INPUT -p udp --dport 10000 -j ACCEPT - # Cluster -A INPUT -s 192.168.1.254 -j ACCEPT # router {% for selected_host in groups['cluster_nodes'] %} @@ -52,7 +19,6 @@ COMMIT - *nat :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] @@ -70,5 +36,3 @@ COMMIT :POSTROUTING ACCEPT [0:0] COMMIT - - From 46aac4cc7909b2ad0faf6f0822b15c405e30ef22 Mon Sep 17 00:00:00 2001 From: Quentin Dufour Date: Mon, 13 Jul 2020 19:58:49 +0200 Subject: [PATCH 2/2] Add SSH --- ansible/roles/network/templates/rules.v4.j2 | 1 + 1 file changed, 1 insertion(+) diff --git a/ansible/roles/network/templates/rules.v4.j2 b/ansible/roles/network/templates/rules.v4.j2 index 9f47ae9..2685b51 100644 --- a/ansible/roles/network/templates/rules.v4.j2 +++ b/ansible/roles/network/templates/rules.v4.j2 @@ -4,6 +4,7 @@ :OUTPUT ACCEPT [0:0] # Cluster +-A INPUT -p tcp --dport 22 -j ACCEPT -A INPUT -s 192.168.1.254 -j ACCEPT # router {% for selected_host in groups['cluster_nodes'] %} -A INPUT -s {{ hostvars[selected_host]['public_ip'] }} -j ACCEPT