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-rw-r--r--cd-system/cd-iptables.rules5
1 files changed, 5 insertions, 0 deletions
diff --git a/cd-system/cd-iptables.rules b/cd-system/cd-iptables.rules
new file mode 100644
index 0000000..c9af7d5
--- /dev/null
+++ b/cd-system/cd-iptables.rules
@@ -0,0 +1,5 @@
+...
+
+-A INPUT -p tcp -m conntrack --ctstate NEW --syn --dport smtp -j ACCEPT
+
+...