From fb527b11076db8dd72e51e8643612efbb8ce1aac Mon Sep 17 00:00:00 2001 From: Silvino Silva Date: Sun, 16 Oct 2016 15:51:17 +0100 Subject: Deleted iptables script with many errors, added simple rules.v4 file that can be used by iptables-restore --- core/conf/iptables/rules.v4 | 138 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 core/conf/iptables/rules.v4 (limited to 'core/conf') diff --git a/core/conf/iptables/rules.v4 b/core/conf/iptables/rules.v4 new file mode 100644 index 0000000..cbaa347 --- /dev/null +++ b/core/conf/iptables/rules.v4 @@ -0,0 +1,138 @@ +# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +*security +:INPUT ACCEPT [6:2056] +:FORWARD ACCEPT [0:0] +:OUTPUT ACCEPT [6:2056] +COMMIT +# Completed on Sat Oct 15 17:20:41 2016 +# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +*raw +:PREROUTING ACCEPT [7:2092] +:OUTPUT ACCEPT [6:2056] +COMMIT +# Completed on Sat Oct 15 17:20:41 2016 +# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +*mangle +:PREROUTING ACCEPT [7:2092] +:INPUT ACCEPT [6:2056] +:FORWARD ACCEPT [0:0] +:OUTPUT ACCEPT [6:2056] +:POSTROUTING ACCEPT [6:2056] +COMMIT +# Completed on Sat Oct 15 17:20:41 2016 +# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +*filter +:INPUT DROP [0:0] +:FORWARD DROP [0:0] +:OUTPUT DROP [0:0] +-A INPUT -i lo -j ACCEPT +-A INPUT -i br0 -j ACCEPT +-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop sync: " --log-level 7 +-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP +-A INPUT -f -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop frag: " +-A INPUT -f -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop null: " +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP +-A INPUT -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop syn rst syn rs" +-A INPUT -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop xmas: " +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,ACK FIN -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop fin scan: " +-A INPUT -p tcp -m tcp --tcp-flags FIN,ACK FIN -j DROP +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,ACK,URG -j DROP +################################################################################# +# INPUT +# Established connections and passive +# + +# Allow established from dns server +-A INPUT -i wlp7s0 -p udp -m udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT + +# INPUT accept passive +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 1024:65535 -m state --state RELATED -j ACCEPT +# Allow established from http server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from https server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A INPUT -i wlp7s0 -p udp -m udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from rsync server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 873 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from pop3s server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from smtps server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from ntp server +-A INPUT -i wlp7s0 -p udp -m udp --sport 123 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from whois server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 43 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow established from ftp server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 20 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 22 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +################################################################################## +# INPUT +# New and established connections to local servers +# + +# INPUT accept from wlp7s0 to dns server +-A INPUT -i wlp7s0 -p udp -m udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT +# INPUT accept from wlp7s0 to https server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT +# INPUT accept from wlp7s0 to ssh server +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 2222 -m state --state ESTABLISHED -j ACCEPT +-A INPUT -i wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 2222 -m state --state NEW -m limit --limit 6/min --limit-burst 3 -j ACCEPT + + +-A INPUT -j LOG --log-prefix "iptables: INPUT: " --log-level 7 +-A FORWARD -j LOG --log-prefix "iptables: FORWARD: " --log-level 7 + +################################################################################## +# Output +# Connections to remote servers +# +-A OUTPUT -o lo -j ACCEPT +-A OUTPUT -o br0 -j ACCEPT + +# Allow dns +-A OUTPUT -o wlp7s0 -p udp -m udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT + +# Allow to rsync server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 873 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to pop3s server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 995 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to smtps server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to ntp server +-A OUTPUT -o wlp7s0 -p udp -m udp --sport 1024:65535 --dport 123 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to ftp server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 20 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to https server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -o wlp7s0 -p udp -m udp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT +# Allow to http server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT + +################################################################################## +# Output +# Connections from local servers +# + +# Allow from ssh server +-A OUTPUT -o wlp7s0 -p tcp -m tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +# Allow from dns server +-A OUTPUT -o wlp7s0 -p udp -m udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A OUTPUT -j LOG --log-prefix "iptables: OUTPUT: " --log-level 7 +COMMIT +# Completed on Sat Oct 15 17:20:41 2016 +# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +*nat +:PREROUTING ACCEPT [1:36] +:INPUT ACCEPT [0:0] +:OUTPUT ACCEPT [0:0] +:POSTROUTING ACCEPT [0:0] +COMMIT +# Completed on Sat Oct 15 17:20:41 2016 -- cgit 1.4.1-2-gfad0