Thanks for the help from everyone re: forwarding port 80 on RedHat. I believe this is what will set me on the right track eventually.
PORT FORWARDING - with IPTABLES while using BASTILLE firewall http://www.hackorama.com/network/portfwd.shtml
I apologize for my lack of terminology!
Thanks again! - Eve
Hi, Eve:
Sorry to enter this topic so late in the discussion, but here is how
I port forward my internal web server. I have a DSL service and run
roaring-penguin to connect to my DSL service and masquerade my
internal machines. A web link (URL) is embedded in the comments.
My DSL becomes 'ppp0' and my internal LAN is 'eth0'.
I think that you will need to turn off 'auto-wrap' before saving or
browse to http://newbiedoc.sourceforge.net/networking/homegateway.html#IPMASQSETTINGSETH
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# google search: setting up a linux home gateway
#newbiedoc.sourceforge.net/networking/homegateway.html#IPMASQSETTINGSETH
# 9.2.2 For Iptables Users
#For users connecting to external network on ethernet & using iptables:
/usr/sbin/iptables -F /usr/sbin/iptables -t nat -F /usr/sbin/iptables -t mangle -F #ignore if you get an error here /usr/sbin/iptables -X #deletes every non-builtin chain in the table
# forward port 80 to my web server
/usr/sbin/iptables -t nat -A PREROUTING -i ppp0 -p tcp --dport 80 -j DNAT --to 192.168.0.7
/usr/sbin/iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT /usr/sbin/iptables -A INPUT -m state --state NEW -i ! ppp0 -j ACCEPT # only if both of the above rules succeed, use /usr/sbin/iptables -P INPUT DROP
/usr/sbin/iptables -A FORWARD -i ppp0 -o eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT
/usr/sbin/iptables -A FORWARD -i eth0 -o ppp0 -j ACCEPT
# use this line if you have a static IP address from your ISP # replace your static IP with x.x.x.x #/usr/sbin/iptables -t nat -A POSTROUTING -o ppp0 -j SNAT --to x.x.x.x
# use this line only if you have dynamic IP address from your ISP /usr/sbin/iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
#/usr/sbin/iptables -A FORWARD -i ppp0 -o ppp0 -j REJECT
/usr/sbin/iptables -L ------------------------ I hope this helps. Chuck
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