WB9YZU
NAXJA Forum User
- Location
- Madison, WI
I had a FTP server running a while back and when ATT took over the service, port 21 got blocked, which screwed the FTP pooch.
Just for fun, I started up the Server again and started playing. Port 21 is still blocked, but port 20 is not. When I type in ftp://domain I get the user/password for my server, even though the server is set to port 21 and the router is set to pass port 21, but not 20.
Even though I was encouraged that I could "Reach" my server though port 20 by doing a fto://domain:20 ,and the server got a "List" command, the computer I was requesting from only got a swinging flashlight abd explorer came up with a server error after a bit.
Is there a workaround for the blocked port 21 issue.
Why when I specify port 20 from the requesting computer, does it "see" the server on port 21?
Just for fun, I started up the Server again and started playing. Port 21 is still blocked, but port 20 is not. When I type in ftp://domain I get the user/password for my server, even though the server is set to port 21 and the router is set to pass port 21, but not 20.
Even though I was encouraged that I could "Reach" my server though port 20 by doing a fto://domain:20 ,and the server got a "List" command, the computer I was requesting from only got a swinging flashlight abd explorer came up with a server error after a bit.
Is there a workaround for the blocked port 21 issue.
Why when I specify port 20 from the requesting computer, does it "see" the server on port 21?