Example svnserve nfsserve iptable ruleset - Revision history

Gordp at 20:51, 18 December 2012

2012-12-18T20:51:10Z

← Older revision		Revision as of 20:51, 18 December 2012
Line 29:		Line 29:
	# and addressed to this host.)		# and addressed to this host.)

	$IPTABLES -A INPUT -m ~~state~~ --~~state~~ INVALID -j DROP		$IPTABLES -A INPUT -m conntrack --ctstate INVALID -j DROP
	$IPTABLES -A INPUT -m ~~state~~ --~~state~~ RELATED,ESTABLISHED -j ACCEPT		$IPTABLES -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT

	# ssh incoming, including non-standard port (if needed)		# ssh incoming, including non-standard port (if needed)
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 22 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 22 -j ACCEPT

	# web serving, let's allow it! Both http and https ports		# web serving, let's allow it! Both http and https ports
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 80 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 80 -j ACCEPT

	# portmapper, in support of being an NFS-client		# portmapper, in support of being an NFS-client
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 111 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 111 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW --dport 111 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW --dport 111 -j ACCEPT

	# NFS serving (NFSv4 server offering NFSv3 back-compat)		# NFS serving (NFSv4 server offering NFSv3 back-compat)
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	# /etc/conf.d/nfs, for OPTS_RPC_MOUNTD="-p 4002" and OPTS_RPC_STATD="-p 4000"		# /etc/conf.d/nfs, for OPTS_RPC_MOUNTD="-p 4002" and OPTS_RPC_STATD="-p 4000"
	# /etc/sysctl.conf, for fs.nfs.nlm_tcpport = 4001 and fs.nfs.nlm_udpport = 4001		# /etc/sysctl.conf, for fs.nfs.nlm_tcpport = 4001 and fs.nfs.nlm_udpport = 4001
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 2049 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 2049 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW --dport 2049 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW --dport 2049 -j ACCEPT
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 4000 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 4000 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW --dport 4000 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW --dport 4000 -j ACCEPT
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 4001 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 4001 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW --dport 4001 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW --dport 4001 -j ACCEPT
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 4002 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 4002 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW --dport 4002 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW --dport 4002 -j ACCEPT

	# rsync serving		# rsync serving
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 873 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 873 -j ACCEPT

	# svn server		# svn server
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 3690 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 3690 -j ACCEPT

	# nagios (5666); monitor time (123), allow snmp (161)		# nagios (5666); monitor time (123), allow snmp (161)
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 5666 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 5666 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m udp --dport 123 -j ACCEPT		$IPTABLES -A INPUT -p udp -m udp --dport 123 -j ACCEPT
	$IPTABLES -A INPUT -p udp -m udp --dport 161 -j ACCEPT		$IPTABLES -A INPUT -p udp -m udp --dport 161 -j ACCEPT

	# amanda tape-backups; we reach out and tape things from this machine		# amanda tape-backups; we reach out and tape things from this machine
	$IPTABLES -A INPUT -p udp -m ~~state~~ --~~state~~ NEW -m udp --dport 10080 -j ACCEPT		$IPTABLES -A INPUT -p udp -m conntrack --ctstate NEW -m udp --dport 10080 -j ACCEPT
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 10082 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 10082 -j ACCEPT
	$IPTABLES -A INPUT -p tcp -m ~~state~~ --~~state~~ NEW --dport 10083 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m conntrack --ctstate NEW --dport 10083 -j ACCEPT

Gordp at 20:59, 28 December 2008

2008-12-28T20:59:40Z

← Older revision		Revision as of 20:59, 28 December 2008
Line 18:		Line 18:
	# ==============		# ==============
	# of course, accepting loopback is a good idea		# of course, accepting loopback is a good idea
	$IPTABLES -A INPUT -i lo -j ACCEPT		$IPTABLES -A INPUT -i lo -j ACCEPT

			# we will permit ping, but rate-limit type 8 to prevent DoS-attack
			$IPTABLES -A INPUT -p icmp --icmp-type 0 -j ACCEPT
			$IPTABLES -A INPUT -p icmp --icmp-type 3 -j ACCEPT
			$IPTABLES -A INPUT -p icmp --icmp-type 11 -j ACCEPT
			$IPTABLES -A INPUT -p icmp --icmp-type 8 -m limit --limit 1/second -j ACCEPT

	# (Applies to packets entering our network interface from the network,		# (Applies to packets entering our network interface from the network,

Gordp at 18:13, 2 July 2008

2008-07-02T18:13:36Z

← Older revision		Revision as of 18:13, 2 July 2008
Line 28:		Line 28:
	# ssh incoming, including non-standard port (if needed)		# ssh incoming, including non-standard port (if needed)
	$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

	# web serving, let's allow it! Both http and https ports		# web serving, let's allow it! Both http and https ports
	$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 80 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 80 -j ACCEPT

	# portmapper, in support of being an NFS-client		# portmapper, in support of being an NFS-client
	$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 111 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 111 -j ACCEPT

Gordp at 16:22, 10 March 2008

2008-03-10T16:22:25Z

← Older revision		Revision as of 16:22, 10 March 2008
Line 28:		Line 28:
	# ssh incoming, including non-standard port (if needed)		# ssh incoming, including non-standard port (if needed)
	$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

			# web serving, let's allow it! Both http and https ports
			$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 80 -j ACCEPT

	# portmapper, in support of being an NFS-client		# portmapper, in support of being an NFS-client
	$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 111 -j ACCEPT		$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 111 -j ACCEPT

Gordp at 16:00, 10 March 2008

2008-03-10T16:00:09Z

← Older revision		Revision as of 16:00, 10 March 2008
Line 33:		Line 33:
	$IPTABLES -A INPUT -p udp -m state --state NEW --dport 111 -j ACCEPT		$IPTABLES -A INPUT -p udp -m state --state NEW --dport 111 -j ACCEPT

	# NFS serving		# NFS serving (NFSv4 server offering NFSv3 back-compat)
	# nail down the ports, by editing:		# nail down the ports, by editing:
	# /etc/conf.d/nfs, for OPTS_RPC_MOUNTD="-p 4002" and OPTS_RPC_STATD="-p 4000"		# /etc/conf.d/nfs, for OPTS_RPC_MOUNTD="-p 4002" and OPTS_RPC_STATD="-p 4000"

Gordp at 15:53, 10 March 2008

2008-03-10T15:53:42Z

@@ Line 45: / Line 45: @@
   $IPTABLES -A INPUT -p tcp -m state --state NEW --dport 4002 -j ACCEPT
   $IPTABLES -A INPUT -p udp -m state --state NEW --dport 4002 -j ACCEPT
   # rsync serving

Gordp at 15:50, 10 March 2008

2008-03-10T15:50:51Z

New page

#! /bin/sh
# /etc/iptables.bak

# Let's save typing & confusion with variables
IPTABLES=/sbin/iptables

# Flush active rules and custom tables
$IPTABLES --flush
$IPTABLES --delete-chain

# set the defaults so that by-default incoming packets are dropped, unless explicitly allowed;
# for a desktop workstation, we'll let lots of (unpredictable) outgoing packets go freely.
$IPTABLES -P INPUT DROP
$IPTABLES -P FORWARD DROP
$IPTABLES -P OUTPUT ACCEPT

# INBOUND POLICY
# ==============
# of course, accepting loopback is a good idea
$IPTABLES -A INPUT -i lo -j ACCEPT

# (Applies to packets entering our network interface from the network,
# and addressed to this host.)

$IPTABLES -A INPUT -m state --state INVALID -j DROP
$IPTABLES -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

# ssh incoming, including non-standard port (if needed)
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

# portmapper, in support of being an NFS-client
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 111 -j ACCEPT
$IPTABLES -A INPUT -p udp -m state --state NEW --dport 111 -j ACCEPT

# NFS serving
# nail down the ports, by editing:
# /etc/conf.d/nfs, for OPTS_RPC_MOUNTD="-p 4002" and OPTS_RPC_STATD="-p 4000"
# /etc/sysctl.conf, for fs.nfs.nlm_tcpport = 4001 and fs.nfs.nlm_udpport = 4001
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 2049 -j ACCEPT
$IPTABLES -A INPUT -p udp -m state --state NEW --dport 2049 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 4000 -j ACCEPT
$IPTABLES -A INPUT -p udp -m state --state NEW --dport 4000 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 4001 -j ACCEPT
$IPTABLES -A INPUT -p udp -m state --state NEW --dport 4001 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 4002 -j ACCEPT
$IPTABLES -A INPUT -p udp -m state --state NEW --dport 4002 -j ACCEPT

# samba (smbd and nmbd) ports
$IPTABLES -A INPUT -p udp -m udp --dport 137 -j ACCEPT
$IPTABLES -A INPUT -p udp -m udp --dport 138 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 139 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 445 -j ACCEPT

# LDAP incoming query port
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 389 -j ACCEPT

# rsync serving
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 873 -j ACCEPT

# svn server
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 3690 -j ACCEPT

# nagios (5666); monitor time (123), allow snmp (161)
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 5666 -j ACCEPT
$IPTABLES -A INPUT -p udp -m udp --dport 123 -j ACCEPT
$IPTABLES -A INPUT -p udp -m udp --dport 161 -j ACCEPT

# amanda tape-backups; we reach out and tape things from this machine
$IPTABLES -A INPUT -p udp -m state --state NEW -m udp --dport 10080 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 10082 -j ACCEPT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 10083 -j ACCEPT

# OUTBOUND POLICY
# ===============
# of course, accepting loopback is a good idea
$IPTABLES -A OUTPUT -o lo -j ACCEPT

# (Applies to packets sent to the network interface from local processes)

$IPTABLES -A OUTPUT -j ACCEPT