diff options
author | Silvino Silva <silvino@bk.ru> | 2017-08-02 01:18:23 +0100 |
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committer | Silvino Silva <silvino@bk.ru> | 2017-08-02 01:18:23 +0100 |
commit | c0148601ebe2196375f26572624590cad2751845 (patch) | |
tree | 0f40548a2b5c8eaf9bd99423e21b8baf63b83d65 /core/conf/iptables | |
parent | 5ff68b8c191272fe9c80765fa6ac11c18aee3224 (diff) | |
parent | 65167272a3ba52dc4d032a1c60a9ff030408047d (diff) | |
download | doc-c0148601ebe2196375f26572624590cad2751845.tar.gz |
Merge branch 'r-0.3.1' into develop
Diffstat (limited to 'core/conf/iptables')
-rw-r--r-- | core/conf/iptables/iptables-lan.sh | 336 | ||||
-rw-r--r-- | core/conf/iptables/rules.v4 | 215 |
2 files changed, 429 insertions, 122 deletions
diff --git a/core/conf/iptables/iptables-lan.sh b/core/conf/iptables/iptables-lan.sh new file mode 100644 index 0000000..491bc3b --- /dev/null +++ b/core/conf/iptables/iptables-lan.sh @@ -0,0 +1,336 @@ +#!/bin/sh + +# +# XXXXXXXXXXXXXXXXX +# XXXX Network XXXX +# XXXXXXXXXXXXXXXXX +# + +# | +# v +# +-------------+ +------------------+ +# |table: filter| <---+ | table: nat | +# |chain: INPUT | | | chain: PREROUTING| +# +-----+-------+ | +--------+---------+ +# | | | +# v | v +# [local process] | **************** +--------------+ +# | +---------+ Routing decision +------> |table: filter | +# v **************** |chain: FORWARD| +# **************** +------+-------+ +# Routing decision | +# **************** | +# | | +# v **************** | +# +-------------+ +------> Routing decision <---------------+ +# |table: nat | | **************** +# |chain: OUTPUT| | + +# +-----+-------+ | | +# | | v +# v | +-------------------+ +# +--------------+ | | table: nat | +# |table: filter | +----+ | chain: POSTROUTING| +# |chain: OUTPUT | +--------+----------+ +# +--------------+ | +# v +# XXXXXXXXXXXXXXXXX +# XXXX Network XXXX +# XXXXXXXXXXXXXXXXX +# +# iptables [-t table] {-A|-C|-D} chain rule-specification +# +# iptables [-t table] {-A|-C|-D} chain rule-specification +# +# iptables [-t table] -I chain [rulenum] rule-specification +# +# iptables [-t table] -R chain rulenum rule-specification +# +# iptables [-t table] -D chain rulenum +# +# iptables [-t table] -S [chain [rulenum]] +# +# iptables [-t table] {-F|-L|-Z} [chain [rulenum]] [options...] +# +# iptables [-t table] -N chain +# +# iptables [-t table] -X [chain] +# +# iptables [-t table] -P chain target +# +# iptables [-t table] -E old-chain-name new-chain-name +# +# rule-specification = [matches...] [target] +# +# match = -m matchname [per-match-options] +# +# +# Targets +# +# can be a user defined chain +# +# ACCEPT - accepts the packet +# DROP - drop the packet on the floor +# QUEUE - packet will be stent to queue +# RETURN - stop traversing this chain and +# resume ate the next rule in the +# previeus (calling) chain. +# +# if packet reach the end of the chain or +# a target RETURN, default policy for that +# chain is applayed. +# +# Target Extensions +# +# AUDIT +# CHECKSUM +# CLASSIFY +# DNAT +# DSCP +# LOG +# Torn on kernel logging, will print some +# some information on all matching packets. +# Log data can be read with dmesg or syslogd. +# This is a non-terminating target and a rule +# should be created with matching criteria. +# +# --log-level level +# Level of logging (numeric or see sys- +# log.conf(5) +# +# --log-prefix prefix +# Prefix log messages with specified prefix +# up to 29 chars log +# +# --log-uid +# Log the userid of the process with gener- +# ated the packet +# NFLOG +# This target pass the packet to loaded logging +# backend to log the packet. One or more userspace +# processes may subscribe to the group to receive +# the packets. +# +# ULOG +# This target provides userspace logging of maching +# packets. One or more userspace processes may then +# then subscribe to various multicast groups and +# then receive the packets. +# +# +# Commands +# +# -A, --append chain rule-specification +# -C, --check chain rule-specification +# -D, --delete chain rule-specification +# -D, --delete chain rulenum +# -I, --insert chain [rulenum] rule-specification +# -R, --replace chain rulenum rule-specification +# -L, --list [chain] +# -P, --policy chain target +# +# Parameters +# +# -p, --protocol protocol +# tcp, udp, udplite, icmp, esp, ah, sctp, all +# -s, --source address[/mask][,...] +# -d, --destination address[/mask][,...] +# -j, --jump target +# -g, --goto chain +# -i, --in-interface name +# -o, --out-interface name +# -f, --fragment +# -m, --match options module-name +# iptables can use extended packet matching +# modules. +# -c, --set-counters packets bytes + +IPT="/usr/sbin/iptables" +SPAMLIST="blockedip" +SPAMDROPMSG="BLOCKED IP DROP" +PUB_IF="wlp7s0" +DHCP_SERV="192.168.1.1" +PUB_IP="192.168.1.33" +PRIV_IF="br0" + +modprobe ip_conntrack +modprobe ip_conntrack_ftp + +echo "Stopping ipv4 firewall and deny everyone..." + +iptables -F +iptables -X +iptables -t nat -F +iptables -t nat -X +iptables -t mangle -F +iptables -t mangle -X +iptables -t raw -F +iptables -t raw -X +iptables -t security -F +iptables -t security -X + + +echo "Starting ipv4 firewall filter table..." + +# Set Default Rules +iptables -P INPUT DROP +iptables -P FORWARD DROP +iptables -P OUTPUT DROP + +# Unlimited on local +$IPT -A INPUT -i lo -j ACCEPT +$IPT -A OUTPUT -o lo -j ACCEPT + +# Block sync +$IPT -A INPUT -p tcp ! --syn -m state --state NEW -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 7 --log-prefix "iptables: drop sync: " +$IPT -A INPUT -p tcp ! --syn -m state --state NEW -j DROP + +# Block Fragments +$IPT -A INPUT -f -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop frag: " +$IPT -A INPUT -f -j DROP + +# Block bad stuff +$IPT -A INPUT -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP +$IPT -A INPUT -p tcp --tcp-flags ALL ALL -j DROP + +$IPT -A INPUT -p tcp --tcp-flags ALL NONE -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop null: " +$IPT -A INPUT -p tcp --tcp-flags ALL NONE -j DROP # NULL packets + +$IPT -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop syn rst syn rst: " +$IPT -A INPUT -p tcp --tcp-flags SYN,RST SYN,RST -j DROP + +$IPT -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop xmas: " +$IPT -A INPUT -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #XMAS + +$IPT -A INPUT -p tcp --tcp-flags FIN,ACK FIN -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop fin scan: " +$IPT -A INPUT -p tcp --tcp-flags FIN,ACK FIN -j DROP # FIN packet scans + +$IPT -A INPUT -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP + +##### Add your AP rules below ###### + +echo 1 > /proc/sys/net/ipv4/ip_forward + +$IPT -A INPUT -i ${PRIV_IF} -j ACCEPT +$IPT -A OUTPUT -o ${PRIV_IF} -j ACCEPT + +$IPT -t nat -A POSTROUTING -o ${PUB_IF} -j SNAT --to ${PUB_IP} +$IPT -A FORWARD -i ${PRIV_IF} -o ${PUB_IF} -j ACCEPT +$IPT -A FORWARD -i ${PUB_IF} -o ${PRIV_IF} -j ACCEPT +# +##### Server rules below ###### + +#echo "Allow ICMP" +$IPT -A INPUT -i ${PUB_IF} -p icmp --icmp-type 0 -s 192.168.0.0/16 -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p icmp --icmp-type 0 -d 192.168.0.0/16 -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p icmp --icmp-type 8 -s 192.168.0.0/16 -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p icmp --icmp-type 8 -d 192.168.0.0/16 -j ACCEPT + +#echo "Allow DNS Server" +#$IPT -A INPUT -i ${PUB_IF} -p udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -s 192.168.0.0/16 -j ACCEPT +#$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -d 192.168.0.0/16 -j ACCEPT + +echo "Allow HTTP and HTTPS server" +#$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 443 -m state --state NEW,ESTABLISHED -s 192.168.0.0/16 -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 443 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT +#$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 80 -m state --state NEW,ESTABLISHED -s 192.168.0.0/16 -j ACCEPT +#$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 80 -m state --state NEW,ESTABLISHED -s 192.168.0.0/16 -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 443 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT + +#echo "Allow ssh server" +#$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT +#$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 22 -m state --state ESTABLISHED -j ACCEPT +#$IPT -A INPUT -i ${PUB_IF} -p tcp --dport 22 -m state --state NEW -m limit --limit 3/min --limit-burst 3 -j ACCEPT + +##### Add your rules below ###### + +echo "Allow DNS Client" + +$IPT -A INPUT -i ${PUB_IF} -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT + +$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT + +echo "Allow Whois Client" + +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 43 -m state --state ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 43 -m state --state NEW,ESTABLISHED -j ACCEPT + +echo "Allow HTTP Client" + +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT + +echo "Allow Rsync Client" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 873 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 873 -m state --state ESTABLISHED -j ACCEPT + +echo "Allow POP3S Client" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 995 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 995 -m state --state ESTABLISHED -j ACCEPT + +echo "Allow SMTPS Client" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 465 -m state --state ESTABLISHED -j ACCEPT + +echo "Allow NTP Client" +$IPT -A OUTPUT -o ${PUB_IF} -p udp --dport 123 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p udp --sport 123 -m state --state ESTABLISHED -j ACCEPT + +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 21 -m state --state ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT + +echo "Allow IRC Client" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 6667 -m state --state NEW -j ACCEPT + +echo "Allow Active FTP Client" +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 20 -m state --state ESTABLISHED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 20 -m state --state NEW,ESTABLISHED -j ACCEPT + +echo "Allow Git" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 9418 -m state --state NEW -j ACCEPT + +echo "Allow ssh client" +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT + +#echo "Allow Passive Connections" +$IPT -A INPUT -i ${PUB_IF} -p tcp --sport 1024:65535 --dport 1024: -m state --state ESTABLISHED,RELATED -j ACCEPT +$IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 1024:65535 --dport 1024: -m state --state ESTABLISHED,RELATED -j ACCEPT + + +# echo "Allow FairCoin" +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 46392 -m state --state NEW,ESTABLISHED -j ACCEPT +# $IPT -A INPUT -i ${PUB_IF} -p tcp --sport 46392 -m state --state ESTABLISHED -j ACCEPT +# +# echo "Allow Dashcoin" +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 29080 -m state --state NEW,ESTABLISHED -j ACCEPT +# $IPT -A INPUT -i ${PUB_IF} -p tcp --sport 29080 -m state --state ESTABLISHED -j ACCEPT +# +# echo "Allow warzone2100" +# $IPT -A INPUT -i ${PUB_IF} -p tcp --dport 2100 -s 192.168.0.0/16 -j ACCEPT +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --sport 2100 -j ACCEPT +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 2100 -j ACCEPT +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 9990 -j ACCEPT +# +# echo "Allow wesnoth" +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 15000 -m state --state NEW -j ACCEPT +# $IPT -A OUTPUT -o ${PUB_IF} -p tcp --dport 14998 -m state --state NEW -j ACCEPT + +##### END your rules ############ +# Less log of known traffic + +# RIP protocol +$IPT -A INPUT -i ${PUB_IF} -p udp --sport 520 --dport 520 -s 192.168.0.0/16 -j DROP + +# DHCP +$IPT -A OUTPUT -o ${PUB_IF} -p udp --sport 68 --dport 67 -d $DHCP_SERV -j ACCEPT +$IPT -A INPUT -i ${PUB_IF} -p udp --sport 67 --dport 68 -s $DHCP_SERV -j ACCEPT + +# log everything else and drop +$IPT -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " +$IPT -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: " +$IPT -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: " + +exit 0 diff --git a/core/conf/iptables/rules.v4 b/core/conf/iptables/rules.v4 index 848603c..568455a 100644 --- a/core/conf/iptables/rules.v4 +++ b/core/conf/iptables/rules.v4 @@ -1,140 +1,111 @@ -# Generated by iptables-save v1.6.0 on Sat Oct 15 17:20:41 2016 +# Generated by iptables-save v1.6.1 on Sat Feb 25 18:34:17 2017 *security -:INPUT ACCEPT [6:2056] +:INPUT ACCEPT [4559:2307887] :FORWARD ACCEPT [0:0] -:OUTPUT ACCEPT [6:2056] +:OUTPUT ACCEPT [4459:962215] 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 +# Completed on Sat Feb 25 18:34:17 2017 +# Generated by iptables-save v1.6.1 on Sat Feb 25 18:34:17 2017 *raw -:PREROUTING ACCEPT [7:2092] -:OUTPUT ACCEPT [6:2056] +:PREROUTING ACCEPT [18446:3412851] +:OUTPUT ACCEPT [4467:962535] 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 +# Completed on Sat Feb 25 18:34:17 2017 +# Generated by iptables-save v1.6.1 on Sat Feb 25 18:34:17 2017 +*nat +:PREROUTING ACCEPT [13936:1107904] +:INPUT ACCEPT [49:2940] +:OUTPUT ACCEPT [504:40037] +:POSTROUTING ACCEPT [504:40037] +COMMIT +# Completed on Sat Feb 25 18:34:17 2017 +# Generated by iptables-save v1.6.1 on Sat Feb 25 18:34:17 2017 *mangle -:PREROUTING ACCEPT [7:2092] -:INPUT ACCEPT [6:2056] +:PREROUTING ACCEPT [0:0] +:INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] -:OUTPUT ACCEPT [6:2056] -:POSTROUTING ACCEPT [6:2056] +:OUTPUT ACCEPT [0:0] +:POSTROUTING ACCEPT [0:0] 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 +# Completed on Sat Feb 25 18:34:17 2017 +# Generated by iptables-save v1.6.1 on Sat Feb 25 18:34:17 2017 *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] +:ACCEPTLOG - [0:0] +:DROPLOG - [0:0] +:REJECTLOG - [0:0] +:RELATED_ICMP - [0:0] +:SYN_FLOOD - [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 icmp -m limit --limit 1/sec --limit-burst 2 -j ACCEPT +-A INPUT -p icmp -m limit --limit 1/sec --limit-burst 2 -j LOG --log-prefix "PING-DROP:" +-A INPUT -p icmp -j DROP +-A INPUT -p icmp -f -j DROPLOG +-A INPUT -p icmp -m state --state ESTABLISHED -m limit --limit 3/sec --limit-burst 8 -j ACCEPT +-A INPUT -p icmp -m state --state RELATED -m limit --limit 3/sec --limit-burst 8 -j RELATED_ICMP +-A INPUT -p icmp -m icmp --icmp-type 8 -m limit --limit 3/sec --limit-burst 8 -j ACCEPT +-A INPUT -p icmp -j DROPLOG +-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT +-A INPUT -p tcp -m multiport --dports 135,137,138,139,445,1433,1434 -j DROP +-A INPUT -p udp -m multiport --dports 135,137,138,139,445,1433,1434 -j DROP +-A INPUT -m state --state INVALID -j DROP +-A INPUT -p tcp -m state --state NEW -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP +-A INPUT -p tcp -m state --state NEW -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -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 INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,ACK FIN -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,ACK,URG -j DROPLOG +-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j SYN_FLOOD +-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROPLOG +-A INPUT -f -j DROPLOG +-A INPUT -j DROPLOG +-A FORWARD -p icmp -f -j DROPLOG +-A FORWARD -p icmp -j DROPLOG +-A FORWARD -m state --state INVALID -j DROP +-A FORWARD -j REJECTLOG -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] +-A OUTPUT -p icmp -j ACCEPT +-A OUTPUT -p icmp -f -j DROPLOG +-A OUTPUT -p icmp -m state --state ESTABLISHED -m limit --limit 3/sec --limit-burst 8 -j ACCEPT +-A OUTPUT -p icmp -m state --state RELATED -m limit --limit 3/sec --limit-burst 8 -j RELATED_ICMP +-A OUTPUT -p icmp -m icmp --icmp-type 8 -m limit --limit 3/sec --limit-burst 8 -j ACCEPT +-A OUTPUT -p icmp -j DROPLOG +-A OUTPUT -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -m state --state INVALID -j DROP +-A OUTPUT -p icmp -m icmp --icmp-type 8 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT +-A OUTPUT -p udp -m udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 6667 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 5222 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 873 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 995 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p udp -m udp --sport 1024:65535 --dport 123 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 20 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 443 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT +-A OUTPUT -j DROPLOG +-A ACCEPTLOG -m limit --limit 3/sec --limit-burst 8 -j LOG --log-prefix "iptables: ACCEPT " --log-level 7 --log-tcp-sequence --log-tcp-options --log-ip-options +-A ACCEPTLOG -j ACCEPT +-A DROPLOG -m limit --limit 3/sec --limit-burst 8 -j LOG --log-prefix "iptables: DROP " --log-level 7 --log-tcp-sequence --log-tcp-options --log-ip-options +-A DROPLOG -j DROP +-A REJECTLOG -m limit --limit 3/sec --limit-burst 8 -j LOG --log-prefix "iptables: REJECT " --log-level 7 --log-tcp-sequence --log-tcp-options --log-ip-options +-A REJECTLOG -p tcp -j REJECT --reject-with tcp-reset +-A REJECTLOG -j REJECT --reject-with icmp-port-unreachable +-A RELATED_ICMP -p icmp -m icmp --icmp-type 3 -j ACCEPT +-A RELATED_ICMP -p icmp -m icmp --icmp-type 11 -j ACCEPT +-A RELATED_ICMP -p icmp -m icmp --icmp-type 12 -j ACCEPT +-A RELATED_ICMP -j DROPLOG +-A SYN_FLOOD -m limit --limit 2/sec --limit-burst 6 -j RETURN +-A SYN_FLOOD -j DROP COMMIT -# Completed on Sat Oct 15 17:20:41 2016 +# Completed on Sat Feb 25 18:34:17 2017 |