From b0530060d406f85cc488f4ad2a4ba3f0810451d7 Mon Sep 17 00:00:00 2001 From: "Daniel A. Maierhofer" Date: Fri, 13 Jul 2018 21:34:14 +0200 Subject: [PATCH] Add iptables for fetlab --- host_vars/fetlab | 3 +++ templates/iptables_fetlab_v4.j2 | 14 ++++++++++++++ templates/iptables_fetlab_v6.j2 | 12 ++++++++++++ 3 files changed, 29 insertions(+) create mode 100644 templates/iptables_fetlab_v4.j2 create mode 100644 templates/iptables_fetlab_v6.j2 diff --git a/host_vars/fetlab b/host_vars/fetlab index 487f49e..c914b8a 100644 --- a/host_vars/fetlab +++ b/host_vars/fetlab @@ -2,6 +2,9 @@ inventory_hostname: fetlab.fet.htu.tuwien.ac.at inventory_hostname_short: fetlab +common_iptables_v4: "iptables_fetlab_v4.j2" +common_iptables_v6: "iptables_fetlab_v6.j2" + common_resolvconf_nameservers: ["128.130.4.3", "128.131.4.3"] common_openssh_keys_root: - "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCzkK6ENya4mKcoG9iuMaodMpifeCgZK56zVF1zxyZhLtUyBx//qsLCXEdBNiGJY57Yp4l0PJKk9B4hpCFKuz6H622l84SOHzXhmFQUXWe/L6x4kRfQJvhBCNMi9brfR0n6AwX59RNRsbUeUjb7RuhCrzpbW0iWYjv/H9rjeyfY5Ne9dUUeBQDcsM1O7XfZJWwA5nxEGjbDB7l4/K43DoqaqzHOEOoETmHGfugO7A5QwhRmblu90pLD4+DOPv/4LGBRNpS8FyRzYrEJm7yUyF7nDzR+0xlLCapU4pKhmIFfSv4afsuBFvLb6Rgln5wUt2KIPh/qnqSP9jZGovYOadC0yb70dec7nnfwXTmqwzdwXtBlo3UzbPwt0iJG9fhYCw83Bkt/GpOsIW2fcxZhJ8CUeBw3Ox71lkeozb49oRMeHzUpYckrFt1FGxUWuHHykCrOXcxso0MRfKjl9RPUc+O5oQDG1KAoTd9doB3jygVr68wYVc/4kTTsXUlMIBMOUiek8XygQ7sV6Et6FpzvLvdf/iL1FMXAluRgUWJvKqe4IBPyWu2KyDF+2ZDMse3WhQYlYgNRqGCwfxOJGWtkvVO0L4YGJrLXKhY4yw2H+pQOHaugfGO8IYPV/vbPi+dB9OV89Zonu2iVjjDFFXI0xE7WSXCV3RQyed26Bq9BBO9DDQ== damadmai@fet.at" diff --git a/templates/iptables_fetlab_v4.j2 b/templates/iptables_fetlab_v4.j2 new file mode 100644 index 0000000..b7efa99 --- /dev/null +++ b/templates/iptables_fetlab_v4.j2 @@ -0,0 +1,14 @@ +# {{ ansible_managed }} + +*filter +:INPUT DROP [0:0] +:FORWARD DROP [0:0] +:OUTPUT ACCEPT [0:0] +-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT +-A INPUT -p icmp -j ACCEPT +-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT +-A INPUT -i lo -j ACCEPT +-A INPUT -p tcp -j REJECT --reject-with tcp-reset +-A INPUT -p udp -j REJECT --reject-with icmp-port-unreachable +-A INPUT -j REJECT --reject-with icmp-proto-unreachable +COMMIT diff --git a/templates/iptables_fetlab_v6.j2 b/templates/iptables_fetlab_v6.j2 new file mode 100644 index 0000000..d2927b5 --- /dev/null +++ b/templates/iptables_fetlab_v6.j2 @@ -0,0 +1,12 @@ +# {{ ansible_managed }} + +*filter +:INPUT DROP [0:0] +:FORWARD DROP [0:0] +:OUTPUT ACCEPT [0:0] +-A INPUT -p tcp --syn -j DROP +-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT +-A INPUT -p ipv6-icmp -j ACCEPT +-A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT +-A INPUT -i lo -j ACCEPT +COMMIT