From 3cdebf3ebe73cb2859dc852dcc73a8ee2d60e976 Mon Sep 17 00:00:00 2001 From: Micah Anderson Date: Tue, 20 Aug 2013 19:45:56 -0400 Subject: install a preliminary firewall that blocks everything, except ssh for the cases when shorewall doesn't properly come up, ensuring that it fails safe (#3339) Change-Id: Id4f0bf6cf25f420aa2ad67635b37ae95f54e3d38 --- .../site_config/templates/ipv4firewall_up.rules.erb | 20 ++++++++++++++++++++ .../site_config/templates/ipv6firewall_up.rules.erb | 7 +++++++ 2 files changed, 27 insertions(+) create mode 100644 puppet/modules/site_config/templates/ipv4firewall_up.rules.erb create mode 100644 puppet/modules/site_config/templates/ipv6firewall_up.rules.erb (limited to 'puppet/modules/site_config/templates') diff --git a/puppet/modules/site_config/templates/ipv4firewall_up.rules.erb b/puppet/modules/site_config/templates/ipv4firewall_up.rules.erb new file mode 100644 index 00000000..c03716f3 --- /dev/null +++ b/puppet/modules/site_config/templates/ipv4firewall_up.rules.erb @@ -0,0 +1,20 @@ +# Generated by iptables-save v1.4.14 on Tue Aug 20 14:40:40 2013 +*filter +:INPUT DROP [0:0] +:FORWARD DROP [0:0] +:OUTPUT DROP [0:0] +-A INPUT -i lo -j ACCEPT +-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT +-A INPUT -p tcp -m state --state NEW,ESTABLISHED --dport <%= @ssh_port %> -j ACCEPT +-A INPUT -p udp -m udp --sport 53 -j ACCEPT +-A INPUT -p icmp -m icmp --icmp-type 8 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A INPUT -p icmp -m icmp --icmp-type 0 -m state --state RELATED,ESTABLISHED -j ACCEPT +-A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 +-A OUTPUT -p icmp -m icmp --icmp-type 0 -m state --state RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -p icmp -m icmp --icmp-type 8 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m state --state NEW,ESTABLISHED --sport <%= @ssh_port %> -j ACCEPT +-A OUTPUT -p tcp -m state --state NEW,ESTABLISHED --dport 80 -j ACCEPT +-A OUTPUT -p udp -m udp --dport 53 -j ACCEPT +-A OUTPUT -p udp -m udp --dport 123 -j ACCEPT +-A OUTPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 +COMMIT diff --git a/puppet/modules/site_config/templates/ipv6firewall_up.rules.erb b/puppet/modules/site_config/templates/ipv6firewall_up.rules.erb new file mode 100644 index 00000000..e7fae52e --- /dev/null +++ b/puppet/modules/site_config/templates/ipv6firewall_up.rules.erb @@ -0,0 +1,7 @@ +# Generated by ip6tables-save v1.4.20 on Tue Aug 20 12:19:43 2013 +*filter +:INPUT DROP [24:1980] +:FORWARD DROP [0:0] +:OUTPUT DROP [14:8030] +COMMIT +# Completed on Tue Aug 20 12:19:43 2013 -- cgit v1.2.3