WIP.

[config] / all_new_2018 / linkable_etc_files / server / etc / iptables / rules.v4

diff --git a/all_new_2018/linkable_etc_files/server/etc/iptables/rules.v4 b/all_new_2018/linkable_etc_files/server/etc/iptables/rules.v4
index 7eff1b0d1f969f7cec333eca9a65d96fadb77d66..6899ef68078f8ff4aacf9819a04d516858b91e19 100644 (file)
--- a/all_new_2018/linkable_etc_files/server/etc/iptables/rules.v4
+++ b/all_new_2018/linkable_etc_files/server/etc/iptables/rules.v4
@@ -4,21 +4,13 @@
 :OUTPUT ACCEPT [0:0]
 # otherwise self-referential connections to local host will fail
 -A INPUT -i lo -j ACCEPT
+# tolerate any inbound connections requested by our server, no matter the port
+-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
 # this enables ping etc.
 -A INPUT -p icmp -j ACCEPT
 # SSH
 -A INPUT -p tcp --dport 22 -j ACCEPT
-# HTTP; uncomment for creating LetsEncrypt certificates in standalone mode.
-#-A INPUT -p tcp --dport 80 -j ACCEPT
 # HTTPS in theory, in practice my second SSH port, see sshd_config
 -A INPUT -p tcp --dport 443 -j ACCEPT
-# SMTP (allowing for STARTTLS); necessary for mail server to mail server banter
--A INPUT -p tcp --dport 25 -j ACCEPT
-# SMTPS, for mail server to mail user agent communication
--A INPUT -p tcp --dport 465 -j ACCEPT
-# IMAPS
--A INPUT -p tcp --dport 993 -j ACCEPT
-# tolerate any inbound connections requested by our server, no matter the port
--A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
 COMMIT
 # this last line is here because iptables-restore ignores the final command if no newline follows it
\ No newline at end of file