[VI] Kemo Sabe August 25, 2003 Share [VI] Kemo Sabe Member August 25, 2003 hey everybody wassup? i have a quick question here about ftp'ing. i am trying to set up an ftp server. my setup is thus: i have a computer that is connected directly to the internet via a cable modem, and it is this one that i'm trying to use as a server. i also have broderbund's zone alarm as firewall. i have freed ports 20 and 21 both tcp and udp for incoming and outgoing, but i still cannot connect to it from a seperate computer. if anyone has some input/suggestion for how to make this work i'd be much obliged. Link to comment Share on other sites More sharing options...
Playaa August 25, 2003 Share Playaa Member August 25, 2003 did you free the ftp ports on your firewall? Link to comment Share on other sites More sharing options...
[VI] Kemo Sabe August 25, 2003 Author Share [VI] Kemo Sabe Member August 25, 2003 Kemo Sabe,Aug 25 2003, 12:05 AM] i have freed ports 20 and 21 both tcp and udp for incoming and outgoing yes Link to comment Share on other sites More sharing options...
yErMoTH3r August 25, 2003 Share yErMoTH3r GC Founder August 25, 2003 yea but are you FORWARDING them on to the server running the FTP (server)? You made a hole, now need to tell the traffic where to go once it is allowed to pass. Link to comment Share on other sites More sharing options...
Playaa August 25, 2003 Share Playaa Member August 25, 2003 I thought ftp used different ports than tcp and udp? guess I was wrongzorz Link to comment Share on other sites More sharing options...
Gond August 25, 2003 Share Gond Member August 25, 2003 HTTP is port 80 so you are right Playaa. Zonealarm is running on the machine you want to use as FTP right? I've never used the software but I'd think that opening the ports would not require forwarding since it's to that machine. Are you able to use the web from that machine? Try turning off the firewall for a few minutes and see if you can hit it. Try to ping it and see if you get a reply. Link to comment Share on other sites More sharing options...
yErMoTH3r August 25, 2003 Share yErMoTH3r GC Founder August 25, 2003 I thought ftp used different ports than tcp and udp?guess I was wrongzorz TCP and UDP are protocols (2 of many many) ports are well um ports 80, 21, 20, 0-65535 FTP in this case is BOTH 20 and 21 TCP. 20 is the data line (ftp-data) and 21 is the command interface (ftp) look at it this way, protocols are akin to spanish, french, english...language equivalents ports are location address to where these protocols are talking. Link to comment Share on other sites More sharing options...
[VI] Kemo Sabe August 25, 2003 Author Share [VI] Kemo Sabe Member August 25, 2003 do i need to redirect/route it? and if i do, how. Link to comment Share on other sites More sharing options...
Playaa August 25, 2003 Share Playaa Member August 25, 2003 TCP and UDP are protocols (2 of many many) we can all agree that I'm a freakin moron with a lapse in memory here.... I knew that....been working with ports and protocols for years in programming.... Link to comment Share on other sites More sharing options...
yErMoTH3r August 25, 2003 Share yErMoTH3r GC Founder August 25, 2003 yes, thats also referred to as FORWARDING (redirecting/rewriting the packet header/dest addys) anyway. there will be a place in your (router) to do this it will possibly have 3 columns. ipaddress, port, protocol to forward lets pretend: inet (external IP address) -> router (4 port/NAT) -> internal machines (internal IP addy) if ext IP = 24.12.16.54 and internal IP = 192.168.0.15 you would enter 192.168.0.15 port: 21 proto: TCP then youd have to add another line 192.168.0.15 port: 20 proto: TCP That should be it. What router you have? Make/Model. Link to comment Share on other sites More sharing options...
[VI] Kemo Sabe August 25, 2003 Author Share [VI] Kemo Sabe Member August 25, 2003 i have no router, just connected straight to the cable modem. my computer acts as router for my internal network Link to comment Share on other sites More sharing options...
dwEEziL August 26, 2003 Share dwEEziL Member August 26, 2003 (edited) Knowing I haven't looked into it in detail, I though from a FTP server stand point that port 20 was used for clients to upload on and 21 used for clients to download on (i.e., the FTP server receives files over port 20 and sends files over port 21). Also Kemo, since your computer effectivly has 2 network presences (one on the Internet and the LAN IP for your internal network), your IP route table might be messed up, meaning, that your clients might be trying to connect to your FTP server over the LAN IP (usually 192.169.1.x) but the server is trying to reply over the Internet IP. You can bring up a Dos box and typ "route print" to see your routing table. I always have a difficult time figuring it out so if you post it up, maybe m0m can interpret it to see if it is correct. Edited August 26, 2003 by dwEEziL Link to comment Share on other sites More sharing options...
[VI] Kemo Sabe August 26, 2003 Author Share [VI] Kemo Sabe Member August 26, 2003 ok, thanks man. ill try. one more question: is it easy to redirect those ports with a router? Link to comment Share on other sites More sharing options...
yErMoTH3r August 26, 2003 Share yErMoTH3r GC Founder August 26, 2003 Kemo Sabe,Aug 26 2003, 11:24 AM] ok, thanks man. ill try. one more question: is it easy to redirect those ports with a router? even zad can do it dlink 704p (40bux office max; 5bux garage sale) (p is for print share) Link to comment Share on other sites More sharing options...
dwEEziL August 26, 2003 Share dwEEziL Member August 26, 2003 Kemo Sabe,Aug 26 2003, 11:24 AM] ok, thanks man. ill try. one more question: is it easy to redirect those ports with a router? As easy as pie (and who doesn't like pie?). You will go to the router's configuration webpage and look for a "Forward" section. Add the ports you want forwarded, give it the LAN IP of the computer that is the FTP server, then click apply. Link to comment Share on other sites More sharing options...
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