Thanks so much for your tips below. Being a newbie, I don't exactly understand all that you mentioned below but it gives me pointers - I will try this out and let everyone know.
As for possibility 3 you mentioned below - the URL I tried from my Home PC was http://xyz.dyndns.org and not the localhost.
Thanks!
Regards.
Ray Olszewski writes:
At 10:16 PM 6/16/2003 -0600, [EMAIL PROTECTED] wrote:Hi,
I installed RH9 on my home computer which has broadband connection.
I got account with dyndns.org which allows me to get a domain name (e.g. http://xyz.dyndns.org) that points to the IP address allocated by my ISP.
When I try to access this webserver from my home PC - http://xyz.dyndns.org, it works fine - I can see the home page that I have setup on my RH9 Apache server.
However if someone from outside (my friend for e.g.), tries to access http://xyz.dyndns.org, he can't do it. However, if my friend tries to ping the IP address or xyz.dyndns.org, he is able to do it.
I have confirmed with my ISP that they don't block any ports.
Are there any settings in RH9 that I need to turn on so that it can accept incoming web traffic from outside?
Thanks for any help / pointer in advance.
Regards.
As you describe this setup, it should work. So let's consider why it might not.
Possibility one: Your ISP is blocking port 80. Yes, I know you said "I have confirmed with my ISP that they don't block any ports", but I don't have to believe it just because that is what you say your ISP says. The test: try running apache on a different port (8080 is traditional), then see if someone from outside can access the Web site as http://xyz.dyndns.org:8080 .
Possibility two: Your system is running firewall rules that block incoming traffic. I don't know what a naive installation of RH9 does about firewalling. The easiest way to find out is to check for yourself: see what the command "iptables -nvL" reports about default policies and specific rules. While I would always strongly recommend running a decent set of firewall rules on any machine that is connected to the Internet, you might, just as a brief test, try clearing the rulesets and setting all policies to ACCEPT (see the man page for iptables if you don't know how to do this) to see if that makes it possible to connect to your Web server.
Possibility three: apache is misconfigured. You write: "When I try to access this webserver from my home PC ... it works fine". What URL are you using to access it? Are you accessing it as http://xyz.dyndns.org or are you using the localhost interface to access it? Make sure apache knows (in its config files) that it is running on the URL and interface you want your friend to use to connect, and that it is configured to accept connections from the outside.
Possibility Four: Your host_access rules (/etc/hosts.allow and /etc/hosts.deny) are blocking the connection. I don't *think* apache uses these access lists itself when run as its own daemon (it has its own access.conf file for this purpose, which you should have checked for Possibiliy Three), but if you run apache through inetd, and it uses tcp-wrappers (tcpd), then these access rules will apply to connection attempts.
If none of those possibilites pans out for you, the only things I can think of to do are ...
First, give us more specifics next time. Like the real URL and what "he can't do it" actually looks like. What failure does the browser at the far end report? At your end, does apache log the attempt to connect? Oh, and who is your ISP?
Second, try running some other service (like ssh) and see if it works. If not, consider (and tell us, if you want more help) how this one fails.
BTW, after writing all of this ... on reflection, I really like Possibility One.
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