problem in setting up own web server

I have set up two web servers inside my internal LAN.

First one used port 80, window IIS, static ip
http://yannaingaye.dyndns.org

Second one used port 6000, badblue freeware, static ip
http://yannaingaye.dyndns.org:6000/mypage/

I used different ports so that I can make port forwarding in my router.

At first, I can see both of them from internet.
Starting from last week, I cannot see first one from my office computer.
From internet:
Some of my friends can see both of them.
Some of my friends can see only the second one.
Some of my friends can see none of them.

They can be seen well in the internal LAN.

Can anyboby advice me? Thanks in advance.

Hi

In the internal LAN,all people can see your website as you use the same subnet mask network and anyport are already allowed for internal LAN.
-Pls try and check again at your router.
-Do you register for your website domain at any DNS server?Pls check also ,your website domain name peer to your host IP address is correct at your synchronize DNS or not?
Indeed,If you want to creat own website server to launch on Internet,
1-Need to register your domain name at DNS server
2-URL name is needed to peer your host(Webserveror IIS machine) IP address at DNS server.
3-Your Webserver,IIS machine , IP address also is need to synchronize with DNS server.
or
If your Webserver ,IIS host machine is assigned with Public IP address and your Internet Server Provider allow ,you can creat own web server and launch on Internet after creating website& DNS function.

Answer:

If you all can see your website on internet at previous time,

-Check your IIS configuration
-Check your router port forwarding
-Check also,"Do your ISP allow for your launching website ,without register with DNS server?"

Need to check step by step !

Your Friend

Hay Yan Naing Aye,

Although ur web servers are not working , FTP server is working pretty well.
(IP 202.156.24.222)

2 web server means what ?
2 seperate NICs ( ie, separate IPs ) on two PC boxes ( OR )
2 virtual IPs on a single NIC ( OR )
1 single IP (using different ports) on a single Machine

How have u setup the router for port forwarding ? NAT ? or direct ?

by the way, why did u choose port 6000? Because it is being used by X-Windows systems.

Hi Kyi Min Niang,

-I have checked the router. I mean I've checked the port forwarding table in it.
-I have used free dynamic dns service "www.dyndns.com"
when i checked in it, my url and my public ip are correct.
Is that what you mean?
-I am not sure about my ISP.
-I will check about ISP and IIS in weekend when I am free.
But I think some of my friends can see means they are OK.
Why don't you visit to my house and check them? hee... Thanks!

Hi Htut Gyi!
Yes, I have also set up ftp server. I am astonished how you know even i didn't mention it! hee... 2 web servers are on two separate desktop PCs each with an NIC connected to router with CAT5 cable. Pls see the following figure for my internal LAN structure.

I just set up the table in the router which port corresponds to which IP. Is it NAT or direct? I chose 6000 arbitrarily. Could you please suggest me suitable port number? Thanks.

Hi Kyi Min Naing and Htut Gyi,
According to your advice, I've changed the port numbers to 8080 and 9090. Hope it is OK. When i checked with

http://www.canyouseeme.org/

I could see both of them. Pls let me know whether you can see or not. Thanks.

Hi Friend,

Sorry for I can't come to you and online as I were very busy and got the stress from Job to be finished urgently .I think your website is ok. Is the following URL address correct on your web Server? I can see your website from Internet at both my office and home. Your Network and my home Network is in the same ISP Network.

http://yannaingaye.dyndns.org:8080/

According to your Network System structure , your router WAN interface used PPoE connection and router also used the other Subnet Network IP for LAN client Network .So ,Your router run NAT function and built-in DHCP server is running. When someone see your website IP,will see your WAN interface IP address. Pls have a look follow:

C:\>nslookup
Default Server: dns4.maxonline.com.sg
Address: 202.156.1.68

> yannaingaye.dyndns.org
Server: dns4.maxonline.com.sg
Address: 202.156.1.68

Non-authoritative answer:
Name: yannaingaye.dyndns.org
Address: 202.156.24.222

It shows that your domain name exist at DNS server and also exist your Web Server also synchronize to DNS sever. So, You will check your IIS configuration and router port forwarding if you have problem. Pls you should use standard port for your website as most of ISP already closed non standard ports from each Backbone Gateway Router or Firewall.

Thanks,
KMN

Thank you very much friends!

Hi Brothers,
I would like to know how to set up a web server to be able to use SSL(port 443). One of my customers's site, for the security issue, I need to set up the web with 443.
Thanks