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Re: bin/56129 (ftp(1) should keep control session duringlargexfer)
The following reply was made to PR bin/56129; it has been noted by GNATS.
From: =?UTF-8?B?SmFyb23DrXIgRG9sZcSNZWs=?= <jaromir.dolecek%gmail.com@localhost>
To: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>
Subject: Re: bin/56129 (ftp(1) should keep control session duringlargexfer)
Date: Wed, 23 Jun 2021 22:46:19 +0200
Le mer. 23 juin 2021 =C3=A0 22:35, RVP <rvp%sdf.org@localhost> a =C3=A9crit :
> In any case, ftp(1) will have to be modified to either:
> a) send periodic keepalive commands during long xfers, or
> b) for non-nteractive xfers, re-connect and fetch the rest of the
> files in a list. (Most of the code for this is already there;
> just needs a bit of re-arrangement.)
ftp client enables SO_KEEPALIVE, which should be the same as actually
sending a dummy command every so often.
I have no idea why it doesn't help. Maybe the keep-alive packets get
ignored by the router, and it doesn't refresh it's NAT inactivity
Did anyone confirm via tcpdump whether the keep-alive packets are
actually sent by the kernel for the control connection?
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