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SubjectRe: TCP keepalive seems to send to only one port
In article <20001225224654.A2080@flower.cesarb> you wrote:
> Well, consider the scenario of an application which opens a control connection
> and a data connection, and the data connection remains idle for some hours
> while you get to the beginning of the queue, and then the transfer starts. The
> data connection is not open forever, and the timeout (and the periodic pings)
> is on the control connection.

The other way around (idle control connection) is trapped by Linux FTP
Masquerading, it will make sure the control connection does not time out, as
long as the Data connection is transmitting Data. This is even done in PASV
mode (thats why the FTP Masq mdule is uefull even in PASV mode).

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