Verizon DSL and FTP/SSH issues
Can somebody competent suggest finally something here ? (the web is full of unresolved complains about this).
PROBLEM
iMac, Leopard -FTP server activated, firewall completely disabled. No problem connecting to it from another machine on the same network using local network IP address (as listed in Apple sharing panel: "Other people can access your FTP server at ftp://192.168.1.x").
The problem is connecting to the server from OUTSIDE the local network (that is on the IP assigned to my machine by Verizon DSL modem/router combo) as this always fails with message: "Connection refused"
It is not clear to me what is refusing connection, the router, the mac itself or just the ftp server.
I set up port forwarding on the router (ports 20,21) per widely circulating instructions but that makes no difference whatsoever to my ability to connect to that server.
The situation is really confusing because a simple web check ( http://www.canyouseeme.org/) shows them open, fully accessible, but on the other hand when I do port scan in Network Utility on my mac I see them only open under local IP, external IP only allows 6 ports (telnet, http, http-alt, etc) open, and port forwarding on the modem makes no difference to what Network Utility reports as open on wide IP *.
I know that forwarding works on this Verizon modem from the fact that I was able to get my bittorrent client to work correctly (NAT problem) once I opened its port on the router. So I'm tempted to conclude that it is something on the mac that refuses. But what, firewall (shouldn't - it's disabled), the ftp server (unlikely 3rd party server "Pure FTPd Manager" shows exactly the same behaviour) ?
So who? And what to do?
Apple?
PROBLEM
iMac, Leopard -FTP server activated, firewall completely disabled. No problem connecting to it from another machine on the same network using local network IP address (as listed in Apple sharing panel: "Other people can access your FTP server at ftp://192.168.1.x").
The problem is connecting to the server from OUTSIDE the local network (that is on the IP assigned to my machine by Verizon DSL modem/router combo) as this always fails with message: "Connection refused"
It is not clear to me what is refusing connection, the router, the mac itself or just the ftp server.
I set up port forwarding on the router (ports 20,21) per widely circulating instructions but that makes no difference whatsoever to my ability to connect to that server.
The situation is really confusing because a simple web check ( http://www.canyouseeme.org/) shows them open, fully accessible, but on the other hand when I do port scan in Network Utility on my mac I see them only open under local IP, external IP only allows 6 ports (telnet, http, http-alt, etc) open, and port forwarding on the modem makes no difference to what Network Utility reports as open on wide IP *.
I know that forwarding works on this Verizon modem from the fact that I was able to get my bittorrent client to work correctly (NAT problem) once I opened its port on the router. So I'm tempted to conclude that it is something on the mac that refuses. But what, firewall (shouldn't - it's disabled), the ftp server (unlikely 3rd party server "Pure FTPd Manager" shows exactly the same behaviour) ?
So who? And what to do?
Apple?
Mac OS X (10.4.7)