Q: Suppose my Apache Web server and Serv-U ftp
HAVE problem for access to the use of WAN address
NO problem to access with LAN address
I Nguyen have enabled in my router
Pls advice
Best Answer: It's an interesting question, but I'm not sure how you would indicate to the firewall that FTP has finished.
You can set up trigger ports, whereby when a connection is made on one port (20?) others will open up (21?). It's not clear in that case for how long the connection would stay open.
This style of opening and closing is used for gaming, so I suspect it would be useful in your case since you're after a similar outcome — stay open until I'm finished with the connection, then down.
Look for "Triggers" or "Port Triggering" settings on the router.
Hope that helps!
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Re:Originally posted by: guy
Actually… you should only NEED one port for ftp if you are using a competant server… unlike proftpd (which I know is flamebait… check this section of the proFTPd faq if you need proof How to use passive mode (http://proftpd.linux.co.uk/docs/faq/linked/faq-ch4.html#AEN382))
A good server will be able to use the dynamic ports to use passive mode with only port 21 forwarded.
I use GuildFTP and I only have port 21 forwarded. Works just fine. People can DL and UL from me.
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Re:Actually… you should only NEED one port for ftp if you are using a competant server… unlike proftpd (which I know is flamebait… check this section of the proFTPd faq if you need proof How to use passive mode (http://proftpd.linux.co.uk/docs/faq/linked/faq-ch4.html#AEN382))
A good server will be able to use the dynamic ports to use passive mode with only port 21 forwarded.
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Re:Doing FTP through Nguy is a bad experience… FTP is a very weird protocol because it requires two ports, 21 for control information and 20 for data, plus it requires dynamic ports… I don't know enough about FTP to differenciate between active mode and passive mode, so the dynamic ports may only be required in one of the modes.
So be sure to forward TWO ports for FTP instead of just one.
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Re:Originally posted by: guy
set up my apache web server and serv-u ftp
HAVE problem to access it using WAN address
NO problem to access it using LAN address
I have Nguy enabled in my router
Pls advice
In addition to what everyone else said, I'd like to add that you're not being specific enough. The ftp and the web servers are two different services, listening on two different tcp ports. While it does sound like a simple port forwarding problem, you should be aware that with ftp there are sometimes issues with some clients working through Nguy. (Linksys used to and may still have a bug where Netscape 4 browser would not work as an ftp client connecting to a server behind the Nguy.)
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Re:Maybe you wanna let us in on what router you're using?
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Re:Also, check to see if it's against the Agreement for your ISP, as they may block ports to stop yuo, even though you could change the port, and then just have to type the port in the URL…
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Re:Originally posted by: guy
Originally posted by: guy
set up my apache web server and serv-u ftp
HAVE problem to access it using WAN address
NO problem to access it using WAN address
I have Nguy enabled in my router
Ummm, I'll hazard a guess that there is a typo in your msg and you mean that you problem accessing it using WAN address and no problem using LAN address.
If so, you have to set up port forwarding on your router to forward ports 80 & 21 accessing your WAN address to your server LAN address. Refer to your router manual to see exactly how.
What he said AND you have tell the router where to forward those ports to. The actual process to do this varies from brand/model to brand/model, but basically you have to:
1. Reconfigure the filters on your router to FORWARD ports 21 & 80 instead of DROP them
2. Tell your router you want to forward all port 21 & 80 traffic to the IP of your server (internal IP assigned to the server box by either the router (DHCP) or yourself (whatever you numbered it.)
My setup at home has three boxes on a 4-port router. The router's IP is 192.168.0.1 (default) Box one (my main rig) is 192.168.0.2, server is 192.168.0.3 and my second rig is 192.168.0.4
I have my router set to forward all port 21 traffic to IP 192.168.0.3.
I hope this helps. I learned a lot of it the very hard, very frustrating way. i/expressions/rolleye.gif
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Re:Originally posted by: guy
set up my apache web server and serv-u ftp
HAVE problem to access it using WAN address
NO problem to access it using WAN address
I have Nguy enabled in my router
Ummm, I'll hazard a guess that there is a typo in your msg and you mean that you problem accessing it using WAN address and no problem using LAN address.
If so, you have to set up port forwarding on your router to forward ports 80 & 21 accessing your WAN address to your server LAN address. Refer to your router manual to see exactly how.
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