sâmbătă, 3 septembrie 2011

Filezilla Server MLSD issue

Like many other today i had a major issue NAT-ing port 21 for a FTP server behind a Windows 2003 Server Small Bussiness; i've read all kinds of suggestions and results on Google without finding solution.

The main topic on this issue on google seems to be on RFC guidlelines and implementation on MLSD ftp command over LIST.

After spending of a few hours with different server/client settings i found solution which is quite obvious, i think, but ....

FTP connection uses port 21 for DATA CONTROL and other negociated port (u cand specify server side a port range) for DATA TRANSFER; so i've added on FTP server a port range like 30000-30001 for data transfer and the NAT these 2 ports to the server machine.

what can i say ......EVRIKA!

ps: really hope this will help some of u ...

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