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Use 'me' rather than explicit IP addresses for the "simple" and "client"

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firewall configurations.

PR:		bin/65258
Silence on:	net@
MFC after:	1 week
This commit is contained in:
John Baldwin 2008-08-15 18:58:15 +00:00
parent 7b0b86a726
commit 228835b658
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=181760
1 changed files with 9 additions and 12 deletions
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21
etc/rc.firewall
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@ -169,14 +169,13 @@ case ${firewall_type} in
# set these to your network and netmask and ip
net="192.0.2.0"
mask="255.255.255.0"
ip="192.0.2.1"
# Allow limited broadcast traffic from my own net.
${fwcmd} add pass all from ${net}:${mask} to 255.255.255.255
# Allow any traffic to or from my own net.
${fwcmd} add pass all from ${ip} to ${net}:${mask}
${fwcmd} add pass all from ${net}:${mask} to ${ip}
${fwcmd} add pass all from me to ${net}:${mask}
${fwcmd} add pass all from ${net}:${mask} to me
# Allow TCP through if setup succeeded
${fwcmd} add pass tcp from any to any established
@ -215,13 +214,11 @@ case ${firewall_type} in
oif="ed0"
onet="192.0.2.0"
omask="255.255.255.240"
oip="192.0.2.1"
# set these to your inside interface network and netmask and ip
iif="ed1"
inet="192.0.2.16"
imask="255.255.255.240"
iip="192.0.2.17"
# Stop spoofing
${fwcmd} add deny all from ${inet}:${imask} to any in via ${oif}
@ -277,15 +274,15 @@ case ${firewall_type} in
${fwcmd} add pass all from any to any frag
# Allow setup of incoming email
${fwcmd} add pass tcp from any to ${oip} 25 setup
${fwcmd} add pass tcp from any to me 25 setup
# Allow access to our DNS
${fwcmd} add pass tcp from any to ${oip} 53 setup
${fwcmd} add pass udp from any to ${oip} 53
${fwcmd} add pass udp from ${oip} 53 to any
${fwcmd} add pass tcp from any to me 53 setup
${fwcmd} add pass udp from any to me 53
${fwcmd} add pass udp from me 53 to any
# Allow access to our WWW
${fwcmd} add pass tcp from any to ${oip} 80 setup
${fwcmd} add pass tcp from any to me 80 setup
# Reject&Log all setup of incoming connections from the outside
${fwcmd} add deny log tcp from any to any in via ${oif} setup
@ -294,10 +291,10 @@ case ${firewall_type} in
${fwcmd} add pass tcp from any to any setup
# Allow DNS queries out in the world
${fwcmd} add pass udp from ${oip} to any 53 keep-state
${fwcmd} add pass udp from me to any 53 keep-state
# Allow NTP queries out in the world
${fwcmd} add pass udp from ${oip} to any 123 keep-state
${fwcmd} add pass udp from me to any 123 keep-state
# Everything else is denied by default, unless the
# IPFIREWALL_DEFAULT_TO_ACCEPT option is set in your kernel