From 4f0a749494c7d31b8d203490ec008918c8bacc87 Mon Sep 17 00:00:00 2001 From: Silvino Silva Date: Wed, 11 Apr 2018 17:01:15 +0100 Subject: iptables moved to core --- tools/conf/etc/iptables/iptables-br.sh | 382 --------------------------------- tools/conf/etc/iptables/vlan.v4 | 136 ------------ tools/conf/etc/rc.d/iptables | 81 ------- tools/network.html | 13 +- tools/openssh.html | 2 +- 5 files changed, 11 insertions(+), 603 deletions(-) delete mode 100644 tools/conf/etc/iptables/iptables-br.sh delete mode 100644 tools/conf/etc/iptables/vlan.v4 delete mode 100755 tools/conf/etc/rc.d/iptables (limited to 'tools') diff --git a/tools/conf/etc/iptables/iptables-br.sh b/tools/conf/etc/iptables/iptables-br.sh deleted file mode 100644 index 96475f4..0000000 --- a/tools/conf/etc/iptables/iptables-br.sh +++ /dev/null @@ -1,382 +0,0 @@ -#!/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" -# public interface to network/internet -#PUB_IF="wlp7s0" -PUB_IF="enp8s0" -BR_IF="br0" -PUB_IP="10.0.0.254" -NET_ADDR="10.0.0.0/8" -GW="10.0.0.1" -# private interface for virtual/internal -PRIV_IF="wlp7s0" -PRIV_IP="192.168.1.33" - -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 -iptables -N blocker - -iptables -N netconf_in -iptables -N netconf_out -iptables -N server_in -iptables -N server_out -iptables -N client_in -iptables -N client_out - -# Set Default Rules -iptables -P INPUT DROP -iptables -P FORWARD DROP -iptables -P OUTPUT DROP - -echo "Starting ipv4 firewall tables..." -# Unlimited on loopback -$IPT -A INPUT -i lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT -$IPT -A OUTPUT -o lo -s 127.0.0.0/8 -d 127.0.0.0/8 -j ACCEPT -$IPT -A INPUT -i lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT -$IPT -A OUTPUT -o lo -s ${PUB_IP} -d ${PUB_IP} -j ACCEPT - -#modprobe ip_conntrack -#modprobe ip_conntrack_ftp -#echo 1 > /proc/sys/net/ipv4/ip_forward - -####### blocker Chain ###### -## Block google dns -$IPT -A blocker -s 8.8.0.0/24 -j LOG --log-level 7 --log-prefix "iptables: blocker google: " -$IPT -A blocker -s 8.8.0.0/24 -j DROP -## Block sync -$IPT -A blocker -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: " -$IPT -A blocker -p tcp ! --syn -m state --state NEW -j DROP -## Block Fragments -$IPT -A blocker -f -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop frag: " -$IPT -A blocker -f -j DROP - -$IPT -A blocker -p tcp --tcp-flags ALL FIN,URG,PSH -j DROP -$IPT -A blocker -p tcp --tcp-flags ALL ALL -j DROP - -$IPT -A blocker -p tcp --tcp-flags ALL NONE -m limit --limit 5/m --limit-burst 7 -j LOG --log-level 4 --log-prefix "iptables: drop null: " -$IPT -A blocker -p tcp --tcp-flags ALL NONE -j DROP # NULL packets - -$IPT -A blocker -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: " -$IPT -A blocker -p tcp --tcp-flags SYN,RST SYN,RST -j DROP - -$IPT -A blocker -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: " -$IPT -A blocker -p tcp --tcp-flags SYN,FIN SYN,FIN -j DROP #XMAS - -$IPT -A blocker -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: " -$IPT -A blocker -p tcp --tcp-flags FIN,ACK FIN -j DROP # FIN packet scans - -$IPT -A blocker -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP -## Return to caller -$IPT -A blocker -j RETURN - -####### server input Chain ###### -echo "server_in chain: Allow to VNC Server" -$IPT -A server_in -p tcp --dport 5900 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow to DataBase Server" -$IPT -A server_in -p tcp --dport 5432 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow to SSH server" -$IPT -A server_in -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow input to HTTPS Server" -$IPT -A server_in -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow input to HTTP Server" -$IPT -A server_in -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow input to DNS Server" -$IPT -A server_in -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A server_in -p tcp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow output from GIT server" -$IPT -A server_in -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT - -## Return to caller -$IPT -A server_in -j RETURN - -####### server output Chain ###### -echo "server_out chain: Allow output from DNS server" -$IPT -A server_out -p udp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -$IPT -A server_out -p tcp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -echo "server_out chain: Allow output from GIT server" -$IPT -A server_out -p tcp --sport 9418 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -echo "server_out chain: Allow output from https server" -$IPT -A server_out -p tcp --sport 443 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -echo "server_out chain: Allow output from http server" -$IPT -A server_out -p tcp --sport 80 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -echo "server_out chain: Allow output from SSH server" -$IPT -A server_out -p tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "server_out chain: Allow output from Data Base server" -$IPT -A server_out -p tcp --sport 5432 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "FORWARD chain: Allow output from VNC server" -$IPT -A server_out -p tcp --sport 5900 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT - -## Return to caller -$IPT -A server_out -j RETURN - -####### client input Chain ###### -echo "client_in chain: Allow input from IRC server" -$IPT -A client_in -p tcp --sport 6667 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from FTP server" -$IPT -A client_in -p tcp --sport 21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from GIT server" -$IPT -A client_in -p tcp --sport 9418 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from POP3S server" -$IPT -A client_in -p tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from SMTPS server" -$IPT -A client_in -p tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from HTTP Server" -$IPT -A client_in -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from HTTPS server" -$IPT -A client_in -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -#$IPT -A client_in -p udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from DNS Server" -$IPT -A client_in -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from SSH Server" -$IPT -A client_in -p tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -$IPT -A client_in -p tcp --sport 22 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from GPG key Server" -$IPT -A client_in -p tcp --sport 11371 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT - -## Return to caller -$IPT -A client_in -j RETURN - -####### client output Chain ###### -echo "client_out chain: Allow output to IRC server" -$IPT -A client_out -p tcp --dport 6667 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to FTP server" -$IPT -A client_out -p tcp --dport 21 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to GIT server" -$IPT -A client_out -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to POP3S server" -$IPT -A client_out -p tcp --dport 995 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to SMTPS server" -$IPT -A client_out -p tcp --dport 465 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to HTTPS server" -$IPT -A client_out -p tcp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A client_out -p udp --dport 443 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "Allow to HTTP server" -$IPT -A client_out -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to DNS server" -$IPT -A client_out -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to SSH server" -$IPT -A client_out -p tcp --dport 2222 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A client_out -p tcp --dport 22 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "client_out chain: Allow output to GPG key Server" -$IPT -A client_out -p tcp --dport 11371 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT - - -## Return to caller -$IPT -A client_out -j RETURN - - -####### netconf input Chain ###### -echo "netconf_in chain: Allow DHCP protocol" -$IPT -A netconf_in -p udp --sport 68 --dport 67 -j ACCEPT -echo "netconf_in chain: Allow RIP protocol for ${NET_ADDR}" -$IPT -A netconf_in -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT -#echo "netconf chain: Allow ICMP from ${NET_ADDR}" -#$IPT -A netconf_in -p icmp -s ${NET_ADDR} -j ACCEPT -echo "netconf_in chain: Allow ICMP from all" -$IPT -A netconf_in -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_in ICMP: " -$IPT -A netconf_in -p icmp -j ACCEPT - -## Return to caller -$IPT -A netconf_in -j RETURN - - -####### netconf output Chain ###### -echo "netconf_out chain: Allow output from DHCP server" -$IPT -A netconf_out -p udp --sport 67 --dport 68 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT -echo "netconf_out chain: Allow RIP protocol for ${NET_ADDR}" -$IPT -A netconf_out -p udp --sport 520 --dport 520 -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT -#echo "netconf chain: Allow ICMP output to ${NET_ADDR}" -#$IPT -A netconf_out -p icmp -d ${NET_ADDR} -j ACCEPT -echo "netconf chain: Allow ICMP output to all" -$IPT -A netconf_out -p icmp -j LOG --log-level 7 --log-prefix "iptables: netconf_out ICMP: " -$IPT -A netconf_out -p icmp -j ACCEPT - -## Return to caller -$IPT -A netconf_out -j RETURN - -####### AP rules ###### -$IPT -A FORWARD -j blocker -#$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -d ${NET_ADDR} -j ACCEPT -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j netconf_in -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j netconf_out -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j client_in -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -j client_out -#$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -j server_in -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -j server_out - -#$IPT -t nat -A POSTROUTING -o ${BR_IF} -j SNAT --to ${PUB_IP} - -####### Input Chain ###### -$IPT -A INPUT -j blocker -$IPT -A INPUT -i ${BR_IF} -s ${NET_ADDR} -d ${PUB_IP} -j server_in -$IPT -A INPUT -i ${BR_IF} -d ${NET_ADDR} -j client_in -$IPT -A INPUT -i ${BR_IF} -j netconf_in - -####### Output Chain ###### -$IPT -A OUTPUT -j blocker -$IPT -A OUTPUT -o ${BR_IF} -s ${PUB_IP} -d ${NET_ADDR} -j server_out -$IPT -A OUTPUT -o ${BR_IF} -s ${NET_ADDR} -j client_out -$IPT -A OUTPUT -o ${BR_IF} -j netconf_out - - -## log everything else and drop -$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/tools/conf/etc/iptables/vlan.v4 b/tools/conf/etc/iptables/vlan.v4 deleted file mode 100644 index 61da499..0000000 --- a/tools/conf/etc/iptables/vlan.v4 +++ /dev/null @@ -1,136 +0,0 @@ -# Generated by iptables-save v1.6.2 on Tue Apr 3 02:25:27 2018 -*security -:INPUT ACCEPT [0:0] -:FORWARD ACCEPT [0:0] -:OUTPUT ACCEPT [0:0] -COMMIT -# Completed on Tue Apr 3 02:25:27 2018 -# Generated by iptables-save v1.6.2 on Tue Apr 3 02:25:27 2018 -*raw -:PREROUTING ACCEPT [0:0] -:OUTPUT ACCEPT [0:0] -COMMIT -# Completed on Tue Apr 3 02:25:27 2018 -# Generated by iptables-save v1.6.2 on Tue Apr 3 02:25:27 2018 -*nat -:PREROUTING ACCEPT [0:0] -:INPUT ACCEPT [0:0] -:OUTPUT ACCEPT [0:0] -:POSTROUTING ACCEPT [0:0] -COMMIT -# Completed on Tue Apr 3 02:25:27 2018 -# Generated by iptables-save v1.6.2 on Tue Apr 3 02:25:27 2018 -*mangle -:PREROUTING ACCEPT [0:0] -:INPUT ACCEPT [0:0] -:FORWARD ACCEPT [0:0] -:OUTPUT ACCEPT [0:0] -:POSTROUTING ACCEPT [0:0] -COMMIT -# Completed on Tue Apr 3 02:25:27 2018 -# Generated by iptables-save v1.6.2 on Tue Apr 3 02:25:27 2018 -*filter -:INPUT DROP [0:0] -:FORWARD DROP [0:0] -:OUTPUT DROP [0:0] -:blocker - [0:0] -:client_in - [0:0] -:client_out - [0:0] -:netconf_in - [0:0] -:netconf_out - [0:0] -:server_in - [0:0] -:server_out - [0:0] --A INPUT -s 127.0.0.0/8 -d 127.0.0.0/8 -i lo -j ACCEPT --A INPUT -s 10.0.0.254/32 -d 10.0.0.254/32 -i lo -j ACCEPT --A INPUT -j blocker --A INPUT -s 10.0.0.0/8 -d 10.0.0.254/32 -i br0 -j server_in --A INPUT -d 10.0.0.0/8 -i br0 -j client_in --A INPUT -i br0 -j netconf_in --A INPUT -j LOG --log-prefix "iptables: INPUT: " --log-level 7 --A FORWARD -j blocker --A FORWARD -d 10.0.0.0/8 -i br0 -o br0 -j netconf_in --A FORWARD -d 10.0.0.0/8 -i br0 -o br0 -j netconf_out --A FORWARD -d 10.0.0.0/8 -i br0 -o br0 -j client_in --A FORWARD -s 10.0.0.0/8 -i br0 -o br0 -j client_out --A FORWARD -s 10.0.0.0/8 -i br0 -o br0 -j server_out --A FORWARD -j LOG --log-prefix "iptables: FORWARD: " --log-level 7 --A OUTPUT -s 127.0.0.0/8 -d 127.0.0.0/8 -o lo -j ACCEPT --A OUTPUT -s 10.0.0.254/32 -d 10.0.0.254/32 -o lo -j ACCEPT --A OUTPUT -j blocker --A OUTPUT -s 10.0.0.254/32 -d 10.0.0.0/8 -o br0 -j server_out --A OUTPUT -s 10.0.0.0/8 -o br0 -j client_out --A OUTPUT -o br0 -j netconf_out --A OUTPUT -j LOG --log-prefix "iptables: OUTPUT: " --log-level 7 --A blocker -s 8.8.0.0/24 -j LOG --log-prefix "iptables: blocker google: " --log-level 7 --A blocker -s 8.8.0.0/24 -j DROP --A blocker -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 blocker -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j DROP --A blocker -f -m limit --limit 5/min --limit-burst 7 -j LOG --log-prefix "iptables: drop frag: " --A blocker -f -j DROP --A blocker -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG -j DROP --A blocker -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP --A blocker -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 blocker -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP --A blocker -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 blocker -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -j DROP --A blocker -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 blocker -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -j DROP --A blocker -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 blocker -p tcp -m tcp --tcp-flags FIN,ACK FIN -j DROP --A blocker -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,ACK,URG -j DROP --A blocker -j RETURN --A client_in -p tcp -m tcp --sport 6667 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 9418 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 995 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p udp -m udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 22 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -p tcp -m tcp --sport 11371 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A client_in -j RETURN --A client_out -p tcp -m tcp --sport 1024:65535 --dport 6667 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 21 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 9418 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 995 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p udp -m udp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p udp -m udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 2222 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -p tcp -m tcp --sport 1024:65535 --dport 11371 -m state --state NEW,ESTABLISHED -j ACCEPT --A client_out -j RETURN --A netconf_in -p udp -m udp --sport 68 --dport 67 -j ACCEPT --A netconf_in -s 10.0.0.0/8 -d 10.0.0.0/8 -p udp -m udp --sport 520 --dport 520 -j ACCEPT --A netconf_in -p icmp -j LOG --log-prefix "iptables: netconf_in ICMP: " --log-level 7 --A netconf_in -p icmp -j ACCEPT --A netconf_in -j RETURN --A netconf_out -s 10.0.0.0/8 -d 10.0.0.0/8 -p udp -m udp --sport 67 --dport 68 -j ACCEPT --A netconf_out -s 10.0.0.0/8 -d 10.0.0.0/8 -p udp -m udp --sport 520 --dport 520 -j ACCEPT --A netconf_out -p icmp -j LOG --log-prefix "iptables: netconf_out ICMP: " --log-level 7 --A netconf_out -p icmp -j ACCEPT --A netconf_out -j RETURN --A server_in -p tcp -m tcp --sport 1024:65535 --dport 5900 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 5432 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 2222 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p udp -m udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -p tcp -m tcp --sport 1024:65535 --dport 9418 -m state --state NEW,ESTABLISHED -j ACCEPT --A server_in -j RETURN --A server_out -p udp -m udp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 9418 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 443 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 80 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 2222 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 5432 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT --A server_out -p tcp -m tcp --sport 5900 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT --A server_out -j RETURN -COMMIT -# Completed on Tue Apr 3 02:25:27 2018 diff --git a/tools/conf/etc/rc.d/iptables b/tools/conf/etc/rc.d/iptables deleted file mode 100755 index 23f5485..0000000 --- a/tools/conf/etc/rc.d/iptables +++ /dev/null @@ -1,81 +0,0 @@ -#!/bin/sh -# -# /etc/rc.d/iptables: load/unload iptable rules -# - -#rules=rules.v4 -rules=vlan.v4 - -iptables_clear () { - echo "clear all iptables tables" - 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 -} - -case $1 in - start) - iptables_clear - echo "starting IPv4 firewall filter table..." - /usr/sbin/iptables-restore < /etc/iptables/${rules} - ;; - stop) - iptables_clear - echo "stopping firewall and deny everyone..." - /usr/sbin/iptables -P INPUT DROP - /usr/sbin/iptables -P FORWARD DROP - /usr/sbin/iptables -P OUTPUT DROP - - # Unlimited on local - /usr/sbin/iptables -A INPUT -i lo -j ACCEPT - /usr/sbin/iptables -A OUTPUT -o lo -j ACCEPT - - # log everything else and drop - /usr/sbin/iptables -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " - /usr/sbin/iptables -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: " - /usr/sbin/iptables -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: " - - ;; - open) - iptables_clear - echo "outgoing Open firewall and deny everyone..." - - /usr/sbin/iptables -P INPUT DROP - /usr/sbin/iptables -P FORWARD DROP - /usr/sbin/iptables -P OUTPUT ACCEPT - - /usr/sbin/iptables -A OUTPUT -j ACCEPT - - # Unlimited on local - /usr/sbin/iptables -A INPUT -i lo -j ACCEPT - /usr/sbin/iptables -A OUTPUT -o lo -j ACCEPT - - # Accept passive - /usr/sbin/iptables -A INPUT -p tcp --dport 1024: -m state --state ESTABLISHED,RELATED -j ACCEPT - /usr/sbin/iptables -A INPUT -p udp --dport 1024: -m state --state ESTABLISHED,RELATED -j ACCEPT - - # log everything else and drop - /usr/sbin/iptables -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " - /usr/sbin/iptables -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: " - /usr/sbin/iptables -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: " - - ;; - - restart) - $0 stop - $0 start - ;; - *) - - echo "usage: $0 [start|stop|restart]" - ;; -esac - -# End of file diff --git a/tools/network.html b/tools/network.html index c4e99f6..31ca60b 100644 --- a/tools/network.html +++ b/tools/network.html @@ -53,10 +53,17 @@ # End of file -

Change iptables script rules from core to - /etc/rc.d/iptables +

Change iptables init script + /etc/rc.d/iptables to load new rules from - /etc/iptables/vlan.v4

+ /etc/iptables/br-lan.v4. + Now change iptables-br.sh + with your network configuration and run; +

+ + 
+        # bash core/scripts/iptables-br.sh
+
Tools Index

This is part of the c9 Manual. diff --git a/tools/openssh.html b/tools/openssh.html index 96e1653..c70a5f5 100644 --- a/tools/openssh.html +++ b/tools/openssh.html @@ -128,7 +128,7 @@

1.2. Configure iptables

Iptables;

-

Example of system-iptables.sh

+

Example of iptables.sh

         $IPT -A INPUT  -i ${PUB_IF} -p tcp --dport 2222 --sport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
-- 
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