diff options
| -rw-r--r-- | core/conf/iptables/br-lan.v4 (renamed from tools/conf/etc/iptables/vlan.v4) | 0 | ||||
| -rw-r--r-- | core/conf/iptables/iptables-lan.sh | 405 | ||||
| -rw-r--r-- | core/conf/iptables/net.v4 (renamed from core/conf/iptables/rules.v4) | 0 | ||||
| -rw-r--r-- | core/conf/rc.d/iptables | 17 | ||||
| -rw-r--r-- | core/network.html | 42 | ||||
| -rw-r--r-- | core/scripts/iptables-br.sh (renamed from tools/conf/etc/iptables/iptables-br.sh) | 71 | ||||
| -rw-r--r-- | core/scripts/iptables.sh (renamed from core/conf/iptables/iptables.sh) | 3 | ||||
| -rwxr-xr-x | tools/conf/etc/rc.d/iptables | 81 | ||||
| -rw-r--r-- | tools/network.html | 13 | ||||
| -rw-r--r-- | tools/openssh.html | 2 |
10 files changed, 87 insertions, 547 deletions
diff --git a/tools/conf/etc/iptables/vlan.v4 b/core/conf/iptables/br-lan.v4 index 61da499..61da499 100644 --- a/tools/conf/etc/iptables/vlan.v4 +++ b/core/conf/iptables/br-lan.v4 diff --git a/core/conf/iptables/iptables-lan.sh b/core/conf/iptables/iptables-lan.sh deleted file mode 100644 index 32a6ef5..0000000 --- a/core/conf/iptables/iptables-lan.sh +++ /dev/null @@ -1,405 +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 -BR_IF="br0" -BR_IP="10.0.0.254" -BR_NET="10.0.0.0/8" -GW="10.0.0.1" - -# private interface for virtual/internal -WIFI_IF="wlp7s0" -WIFI_NET="192.168.1.0/24" -#PRI_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 - -iptables -N srv_dns_in -iptables -N srv_dns_out -iptables -N cli_dns_in -iptables -N cli_dns_out -iptables -N cli_http_in -iptables -N cli_http_out - -# Set Default Rules -iptables -P INPUT DROP -iptables -P FORWARD DROP -iptables -P OUTPUT DROP - -####### 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 - -######## DNS Server -#echo "server_in chain: Allow input to DNS Server" -$IPT -A srv_dns_in -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A srv_dns_in -p tcp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A srv_dns_in -j RETURN -#echo "srv_dns_out chain: Allow output from DNS server" -$IPT -A srv_dns_out -p udp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -$IPT -A srv_dns_out -p tcp --sport 53 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT -$IPT -A srv_dns_out -j RETURN - -######## DNS Client -echo "cli_dns_out chain: Allow output to DNS server" -$IPT -A cli_dns_out -p udp --dport 53 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A cli_dns_out -j RETURN -echo "cli_dns_in chain: Allow input from DNS Server" -$IPT -A cli_dns_in -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -$IPT -A cli_dns_in -j RETURN - -######## HTTP Client -$IPT -A cli_http_in -p tcp --sport 80 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -$IPT -A cli_http_in -j RETURN -#echo "Allow to HTTP server" -$IPT -A cli_http_out -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$IPT -A cli_http_out -j RETURN - -####### server input Chain ###### -#echo "server_in chain: Allow to VNC Server" -#$IPT -A server_in -p tcp --dport 5900:5910 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow to DataBase Server" -$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" -$IPT -A server_in -p tcp --dport 80 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -echo "server_in chain: Allow output from GIT server" -$IPT -A server_in -p tcp --dport 9418 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT - -## Return to caller -$IPT -A server_in -j RETURN - -####### server output Chain ###### -echo "server_out chain: Allow output from GIT server" -$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 "server_out chain: Allow output from VNC server" -#$IPT -A server_out -p tcp --sport 5900:5910 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT - -## Return to caller -$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" -$IPT -A client_in -p tcp --sport 465 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from HTTPS server" -$IPT -A client_in -p tcp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -$IPT -A client_in -p udp --sport 443 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT -echo "client_in chain: Allow input from SSH Server" -$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 -$IPT -A client_in -j RETURN - -####### client output Chain ###### -echo "client_out chain: Allow output to IRC server" -$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 "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" -$IPT -A client_out -p tcp --dport 11371 --sport 1024:65535 -m state --state NEW,ESTABLISHED -j ACCEPT -$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 ${BR_NET}" -$IPT -A netconf_in -p udp --sport 520 --dport 520 -j ACCEPT -#echo "netconf chain: Allow ICMP from ${BR_NET}" -#$IPT -A netconf_in -p icmp -s ${BR_NET} -j ACCEPT -echo "netconf_in chain: Allow ICMP from all" -$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 -j ACCEPT -echo "netconf_out chain: Allow RIP protocol for ${BR_NET}" -$IPT -A netconf_out -p udp --sport 520 --dport 520 -j ACCEPT -#echo "netconf chain: Allow ICMP output to ${BR_NET}" -#$IPT -A netconf_out -p icmp -d ${BR_NET} -j ACCEPT -echo "netconf chain: Allow ICMP output to all" -$IPT -A netconf_out -p icmp -j ACCEPT - -## Return to caller -$IPT -A netconf_out -j RETURN - -############################################################ -# -# Start adding rules tables -# - -echo "Starting ipv4 firewall tables..." - -# Unlimited on loopback -$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 ${BR_IP} -d ${BR_IP} -j ACCEPT -$IPT -A OUTPUT -o lo -s ${BR_IP} -d ${BR_IP} -j ACCEPT - -#modprobe ip_conntrack -#modprobe ip_conntrack_ftp -echo 1 > /proc/sys/net/ipv4/ip_forward - -####### Forward Chain ###### -$IPT -A FORWARD -j blocker -$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${BR_NET} -d ${BR_NET} -j ACCEPT -$IPT -A FORWARD -o ${BR_IF} -s ${BR_IP} -d ${BR_NET} -j ACCEPT -#$IPT -A FORWARD -i ${BR_IF} -o ${WIFI_IF} -j ACCEPT -#$IPT -A FORWARD -i ${WIFI_IF} -o ${BR_IF} -j ACCEPT - -####### Input Chain ###### -$IPT -A INPUT -j blocker -$IPT -A INPUT -i ${BR_IF} -j netconf_in -$IPT -A INPUT -i ${BR_IF} -d ${BR_IP} -j srv_dns_in -$IPT -A INPUT -i ${BR_IF} -s ${BR_NET} -d ${BR_IP} -j server_in -#$IPT -A INPUT -i ${WIFI_IF} -d ${WIFI_NET} -j client_in -#$IPT -A INPUT -i ${WIFI_IF} -d ${WIFI_NET} -j cli_dns_in -#$IPT -A INPUT -i ${BR_IF} -d ${BR_IP} -j client_in -# -##$IPT -A INPUT -i ${WIFI_IF} -j server_in -#$IPT -A INPUT -i ${WIFI_IF} -j netconf_in - -####### Output Chain ###### -$IPT -A OUTPUT -j blocker -$IPT -A OUTPUT -o ${BR_IF} -j netconf_out -$IPT -A OUTPUT -o ${BR_IF} -s ${BR_IP} -d ${BR_NET} -j srv_dns_out -$IPT -A OUTPUT -o ${BR_IF} -s ${BR_IP} -d ${BR_NET} -j server_out -$IPT -A OUTPUT -o ${BR_IF} -s ${BR_IP} -d ${BR_NET} -j client_out -#$IPT -A OUTPUT -o ${WIFI_IF} -s ${WIFI_NET} -j client_out -#$IPT -A OUTPUT -o ${WIFI_IF} -s ${WIFI_NET} -j cli_dns_out - -#$IPT -A OUTPUT -o ${BR_IF} -s ${BR_IP} -j client_out - -#$IPT -A OUTPUT -o ${WIFI_IF} -j server_out -#$IPT -A OUTPUT -o ${WIFI_IF} -j netconf_out - -####### PostRouting Chain ###### -$IPT -t nat -A POSTROUTING -o ${WIFI_IF} -j MASQUERADE -#$IPT -t nat -A POSTROUTING -o ${BR_IF} -j MASQUERADE - -## log everything else and drop -$IPT -A OUTPUT -j LOG --log-level 7 --log-prefix "iptables: OUTPUT: " -$IPT -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " -$IPT -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: " -$IPT -t nat -A POSTROUTING -j LOG --log-level 7 --log-prefix "iptables: POSTROUTING: " -$IPT -t nat -A PREROUTING -j LOG --log-level 7 --log-prefix "iptables: PREROUTING: " -exit 0 diff --git a/core/conf/iptables/rules.v4 b/core/conf/iptables/net.v4 index 568455a..568455a 100644 --- a/core/conf/iptables/rules.v4 +++ b/core/conf/iptables/net.v4 diff --git a/core/conf/rc.d/iptables b/core/conf/rc.d/iptables index bb5cf91..dd17b97 100644 --- a/core/conf/rc.d/iptables +++ b/core/conf/rc.d/iptables @@ -3,8 +3,7 @@ # /etc/rc.d/iptables: load/unload iptable rules # -rules=rules.v4 -#rules=vlan.v4 +rules=/etc/iptables/net.v4 iptables_clear () { echo "clear all iptables tables" @@ -22,9 +21,8 @@ iptables_clear () { case $1 in start) - iptables_clear echo "starting IPv4 firewall filter table..." - /usr/sbin/iptables-restore < /etc/iptables/${rules} + /usr/sbin/iptables-restore ${rules} ;; stop) iptables_clear @@ -51,6 +49,12 @@ case $1 in /usr/sbin/iptables -P FORWARD DROP /usr/sbin/iptables -P OUTPUT ACCEPT + /usr/sbin/iptables -t mangle -P PREROUTING ACCEPT + /usr/sbin/iptables -t mangle -P INPUT ACCEPT + /usr/sbin/iptables -t mangle -P FORWARD ACCEPT + /usr/sbin/iptables -t mangle -P OUTPUT ACCEPT + /usr/sbin/iptables -t mangle -P POSTROUTING ACCEPT + /usr/sbin/iptables -A OUTPUT -j ACCEPT # Unlimited on local @@ -58,8 +62,9 @@ case $1 in /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 + /usr/sbin/iptables -A INPUT -p tcp --dport 1024: -m state --state ESTABLISHED,RELATED,NEW -j ACCEPT + /usr/sbin/iptables -A INPUT -p tcp --dport 1024: -m state --state ESTABLISHED,RELATED,NEW -j ACCEPT + /usr/sbin/iptables -A INPUT -p udp --dport 1024: -m state --state ESTABLISHED,RELATED,NEW -j ACCEPT # log everything else and drop /usr/sbin/iptables -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " diff --git a/core/network.html b/core/network.html index 57f877a..9aa5921 100644 --- a/core/network.html +++ b/core/network.html @@ -13,10 +13,10 @@ <dl> <dt><a href="conf/rc.d/iptables">/etc/rc.d/iptables</a></dt> - <dd>Configure iptables, start option loads set of rules from - file /etc/iptables/rules_file_name, open option allows everything - to outside and blocks everything from outside, stop will block - and log everything.</dd> + <dd>Configure <a href="#iptables">iptables</a>, start option + loads set of rules from file /etc/iptables/name.v4, open option + allows everything to outside and blocks everything from outside, + stop will block and log everything.</dd> <dt><a href="conf/rc.d/net">/etc/rc.d/net</a></dt> <dd>Configure Ethernet interface with static or dynamic (dhcp) IP, set default route and add default gateway.</dd> @@ -116,47 +116,45 @@ <p>For more information about iptables read <a href="https://wiki.archlinux.org/index.php/Iptables">arch wiki</a>. - Iptables can be setup at startup with - <a href="conf/rc.d/iptables">/etc/rc.d/iptables</a> script, change - <a href="conf/iptables/iptables.sh">/etc/iptables/iptables.sh</a> - with your needs and run to apply, after iptables-save can be used - to create /etc/iptables/rules.v4 file that is used by init script.</p> + Iptables can be setup at boot with + <a href="conf/rc.d/iptables">/etc/rc.d/iptables</a> init script, change + <a href="scripts/iptables.sh">iptables.sh</a> with your needs and run + to save rules in <a href="conf/iptables/net.v4">/etc/iptables/net.v4</a> + file.</p> <p>Init script "start" option loads set of rules from file /etc/iptables/rules.v4, "open" option allows everything to outside and blocks everything from outside, "stop" will block and log everything.</p> + <p>Setup init script and rules ;</p> + <pre> # mkdir /etc/iptables - # cp c9-doc/core/conf/iptables/rules.v4 /etc/iptables/ - # cp c9-doc/core/conf/rc.d/iptables /etc/rc.d/ + # cp core/conf/iptables/net.v4 /etc/iptables/ + # cp core/conf/rc.d/iptables /etc/rc.d/ # chmod +x /etc/rc.d/iptables </pre> - <p>Adjust rules.v4 to your needs, then;</p> + <p>Change /etc/rc.conf and add iptables;</p> <pre> - # sh /etc/rc.d/iptables start + SERVICES=(iptables lo net crond) </pre> - <p>See current rules and packets;</p> + <p>Adjust <a href="scripts/iptables.sh">iptables.sh</a> with + your network configuration then run it;</p> <pre> - # iptables -L -n -v | less + # bash core/scripts/iptables.sh </pre> - <p>Copy init script, edit if you dont like to - let drop when you call stop.</p> - - <p>Re-configure your rc.conf and add iptables before (w)lan is up;</p> + <p>See current rules and packets;</p> <pre> - SERVICES=(lo iptables net crond) + # iptables -L -n -v | less </pre> - <p> - <h2 id="wpa">2.3.4. Wpa and dhcpd</h2> <p>There is more information on diff --git a/tools/conf/etc/iptables/iptables-br.sh b/core/scripts/iptables-br.sh index 96475f4..be1280c 100644 --- a/tools/conf/etc/iptables/iptables-br.sh +++ b/core/scripts/iptables-br.sh @@ -225,21 +225,21 @@ $IPT -A blocker -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP $IPT -A blocker -j RETURN ####### server input Chain ###### -echo "server_in chain: Allow to VNC Server" -$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 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 +#echo "server_in chain: Allow input to 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 @@ -248,18 +248,18 @@ $IPT -A server_in -j RETURN 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" -$IPT -A server_out -p tcp --sport 5900 --dport 1024:65535 -m state --state RELATED,ESTABLISHED -j ACCEPT +#echo "server_out chain: Allow output from GIT server" +#$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 "server_out 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 @@ -315,11 +315,9 @@ $IPT -A client_out -p tcp --dport 22 --sport 1024:65535 -m state --state NEW,EST 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 @@ -350,33 +348,48 @@ $IPT -A netconf_out -p icmp -j ACCEPT $IPT -A netconf_out -j RETURN ####### AP rules ###### +#$IPT -t nat -A PREROUTING -i ${BR_IF} -p tcp --dport 80 -j DNAT --to 10.0.0.4:80 + $IPT -A FORWARD -j blocker #$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 ${BR_IF} -j netconf_in +$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -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} -d ${NET_ADDR} -j server_in $IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -s ${NET_ADDR} -j server_out +$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -d ${NET_ADDR} -m physdev --physdev-in ${PUB_IF} --physdev-out tap2 -j ACCEPT + +$IPT -A FORWARD -i ${BR_IF} -o ${BR_IF} -m physdev --physdev-in tap2 --physdev-out ${PUB_IF} -j ACCEPT + +#$IPT -A FORWARD -j server_in + #$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 ${BR_IF} -j netconf_in +#$IPT -A INPUT -i ${PUB_IF} -d ${NET_ADDR} -j client_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 ${BR_IF} -j netconf_out +#$IPT -A OUTPUT -o ${PUB_IF} -s ${NET_ADDR} -j client_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: " +iptables-save > /etc/iptables/br-lan.v4 exit 0 diff --git a/core/conf/iptables/iptables.sh b/core/scripts/iptables.sh index 32a6ef5..b887204 100644 --- a/core/conf/iptables/iptables.sh +++ b/core/scripts/iptables.sh @@ -402,4 +402,7 @@ $IPT -A INPUT -j LOG --log-level 7 --log-prefix "iptables: INPUT: " $IPT -A FORWARD -j LOG --log-level 7 --log-prefix "iptables: FORWARD: " $IPT -t nat -A POSTROUTING -j LOG --log-level 7 --log-prefix "iptables: POSTROUTING: " $IPT -t nat -A PREROUTING -j LOG --log-level 7 --log-prefix "iptables: PREROUTING: " + + +iptables-save > /etc/iptables/net.rules exit 0 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 </pre> - <p>Change iptables script rules from core to - <a href="conf/etc/rc.d/iptables">/etc/rc.d/iptables</a> + <p>Change iptables init script + <a href="../core/conf/rc.d/iptables">/etc/rc.d/iptables</a> to load new rules from - <a href="conf/etc/iptables/vlan.v4">/etc/iptables/vlan.v4</a></p> + <a href="../core/conf/iptables/br-lan.v4">/etc/iptables/br-lan.v4</a>. + Now change <a href="../core/scripts/iptables-br.sh">iptables-br.sh</a> + with your network configuration and run; + </p> + + <pre> + # bash core/scripts/iptables-br.sh + </pre> <a href="index.html">Tools Index</a> <p>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 @@ <h3 id="iptables">1.2. Configure iptables</h3> <p>Iptables;</p> - <p>Example of <a href="scripts/system-iptables.sh">system-iptables.sh</a></p> + <p>Example of <a href="../core/scripts/iptables.sh">iptables.sh</a></p> <pre> $IPT -A INPUT -i ${PUB_IF} -p tcp --dport 2222 --sport 1024:65535 -m state --state ESTABLISHED -j ACCEPT |