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Thread ID: 56312	2005-04-01 23:44:00	FTP Server problems	Agent_24 (57)	Press F1

Post ID	Timestamp	Content	User
340525	2005-04-01 23:44:00	After I got DSL, I thought I'd host a website (mainly for my friends to download files off me, and upload things without emailing them). I got apache 2.0.52 and a basic page up and running, and everyone can view that fine.. Then I decided an FTP server would be better for the uploading part, and downloading as well, So i got myself Serv-U FTP which is of course the problem. Now, I have DSL, and two of my friends have DSL too - they both can connect and download/upload to my FTP perfectly fine. (my school, which also has DSL can access my FTP, but in a read-only mode - IE comes up with some proxy error message - I assume this is the school's stupid security settings) But for those with 56k dialup, there is a problem where they can't even login to the server at all. I suspect there is probably some sort of setting I need to change, but I have no idea what it might be Suggestions anyone? :help:	Agent_24 (57)
340526	2005-04-02 00:54:00	You configured it to allow login from any IP?	vinref (6194)
340527	2005-04-02 02:54:00	Coincidences happen . The school's proxy is the cause of that problem . But it, and the DSL users can get in . So your FTP server is working . Have a look at the settings of the dialup users . It makes no difference how people access their ISP . Think about it . What is talking to your server is your ISP, over a telephone line . Through the Internet, your ISP talks to the other party's ISP . That ISP is talking to the other party through a telephone line . In theory, the ISPs could print out all packets for a user, and deliver the paper to the user, who then types the packets in to his browser, and prints out the packets to go out . The throughput and latency might be ludicrous, but apart from timeouts (which should be adjustable) and typing errors (which might cause NAKs, leading to retries) it would work . :cool: Who is getting the error message: you or the other party? If your server doesn't like something, it will have made entries in a log file . (It wil probably make entries in a log file even when everything is working . ;) ) ALWAYS LOOK AT THE LOG FILES . That's what they are for . Just before I hit [Post] I had a nasty thought . . . are these dial-up users dialling direct to your telephone number? That would be different . ;)	Graham L (2)
340528	2005-04-02 04:40:00	Well these three different people have 3 different ISP's - Ihug, Callplus and Clear . . . My friend with callplus just tried logging in, and he says IE gave him this error: "The page cannot be displayed The page you are looking for is currently unavailable . The Web site might be experiencing technical difficulties, or you may need to adjust your browser settings . Cannot find server or DNS Error Internet Explorer " And Serv-U's log says: [5] Sat 02Apr05 15:26:27 - (000003) Connected to 202 . 180 . 72 . 33 (Local address 10 . 1 . 1 . 3) [5] Sat 02Apr05 15:26:27 - (000003) IP-Name: P33 . POOL-72 . CPIAK1-L2 . CALLPLUS . NET . NZ [5] Sat 02Apr05 15:26:27 - (000003) ANONYMOUS logged in, password: IEUSER@ [5] Sat 02Apr05 15:26:29 - (000003) Closing connection for user ANONYMOUS (00:00:02 connected) I just dont get it :confused:	Agent_24 (57)
340529	2005-04-02 04:48:00	Suspect browser settings . ;) Remember that FTP is not the same as HTTP, and there might be a problem with the actions you get because the FTP "home page" (index . html ?) might not exist . See if they can use the command-line FTP client . . . Or tell them to work faster . That user was logged into the server for a whole second . :)	Graham L (2)
340530	2005-04-02 05:10:00	that's what I dont get - my friend says there is no indication at all that he was logged on... What's even stranger is one friend with DSL uses IE, and the other SmartFTP - Both work	Agent_24 (57)
340531	2005-04-03 01:55:00	What does the log look like for successful connections? I assume the DSL users are also using the anonymous bits . AHA . I've just though of something . FTP uses two ports . . . one for commands, and the other for data . The caller makes a connection, which is outgoing, so their firewayy allows it . . The login sequence uses that command port . As soon as the server tries to send data, it wants to open the data port on the user . That could be where it falls over . I think that's what would happen . I've never done FTP through firewalls . . . I don't need them on my home network . I seem to remember that's there might be a mode which uses only one port . . . look into that . Get your dialup users to have a look at their firewall logs . ;)	Graham L (2)
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