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Red Hat 9.0 firewall

Posted on 2004-03-30
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Last Modified: 2013-12-06
Hello

I have installed Red Hat 9.0 on my machine and host my own websites on it. Everyone on the lan here can see my webpage but not the other users outside of the lan.
By typing SETUP, I changed the firewall configuration to NO FIREWALL (just to test). Even of I reboot the server or quit the setup screen, the firewall return automaticly to HIGH

I've also allow the HTTP protocol on the router and stuff like that.

I'd like to know what I can do to allow the other users to see my site?
Thank you!
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Question by:michose
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by:paullamhkg
ID: 10720379
Actually if you set the firewall to allow httpd, there should not be any problem, so I don't think the problem of your firewall, also your internal network can access it, so that's not an issue on the firewall in your RH9.0.

is your RH using internal ip? if yes, did your router do the NAT to map the real ip with the internal IP.

Also, is the DNS have the A record for your web?

the point is outsider have to use either a url name or ip to access your RH9, and if the IP not real ip, outsider can access the internal IP.  same as the url name, if the DNS didn't have the A name record and the real IP, outsider can't access.
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by:michose
ID: 10720435
I installd DDClient because I have dynamic IP. I'm using dyndns.org actually

Somethims when I check the DHCP Client Table on the router, all the ip on the internal network are there, but w/o the computer name. I think that's the problem.

is that true?
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paullamhkg earned 125 total points
ID: 10721169
no DHCP is only for delivery the IP to the computers.

but I think in the router there should be some how to setup a internal DNS or NAT and put the IP with names so the outsider and pass through the dyndns.org and get into your router and your router point to the web/redhat box.

internet ----> dyndns.org ----> your router ---NAT/DNS--> your server (s)

that mean the dyndns.org only pass all the visit to your gateway (router) and your router should route the request to the server (s)
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