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Re: Net::FTPServer problem with active/passive connections

by dwm042 (Priest)
on Sep 19, 2008 at 19:56 UTC ( #712601=note: print w/replies, xml ) Need Help??

in reply to Net::FTPServer problem with active/passive connections

Classically, if you can connect to a FTP server but you cannot do a 'dir', your command channel (port 21 classically) is fine but you're having problems with the data channel (port 20). That your data channel hangs unless people go passive suggests it could be a firewall/networking issue.

Update: As an example of the kinds of issues FTP generates, you cannot pass FTP traffic through an iptables filter unless you turn on ftp connection tracking.

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