From 4b48b83ce9eea9150c1c3aef63aba375e607b2aa Mon Sep 17 00:00:00 2001
From: "Daniel A. Maierhofer" <git@damadmai.at>
Date: Sun, 4 Nov 2018 21:01:49 +0100
Subject: [PATCH] Enable SSH with password, iptables for sputnik

---
 host_vars/sputnik                |  7 +++++++
 templates/iptables_sputnik_v4.j2 | 14 ++++++++++++++
 templates/iptables_sputnik_v6.j2 | 12 ++++++++++++
 3 files changed, 33 insertions(+)
 create mode 100644 host_vars/sputnik
 create mode 100644 templates/iptables_sputnik_v4.j2
 create mode 100644 templates/iptables_sputnik_v6.j2

diff --git a/host_vars/sputnik b/host_vars/sputnik
new file mode 100644
index 0000000..4b33fb3
--- /dev/null
+++ b/host_vars/sputnik
@@ -0,0 +1,7 @@
+inventory_hostname: sputnik.fet.htu.tuwien.ac.at
+inventory_hostname_short: sputnik
+
+common_iptables_v4: "iptables_sputnik_v4.j2"
+common_iptables_v6: "iptables_sputnik_v6.j2"
+
+common_openssh_password_authentication: "yes"
diff --git a/templates/iptables_sputnik_v4.j2 b/templates/iptables_sputnik_v4.j2
new file mode 100644
index 0000000..b7efa99
--- /dev/null
+++ b/templates/iptables_sputnik_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_sputnik_v6.j2 b/templates/iptables_sputnik_v6.j2
new file mode 100644
index 0000000..d2927b5
--- /dev/null
+++ b/templates/iptables_sputnik_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