Re: [ftpext] New Version of FTP HASH, RANG, LOCK, and HOST
Ángel González <keisial@gmail.com> Sun, 03 February 2013 22:11 UTC
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Date: Sun, 03 Feb 2013 23:09:23 +0100
From: Ángel González <keisial@gmail.com>
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To: Tim Kosse <tim.kosse@filezilla-project.org>
References: <CANqTPegPaMBF9i1gi+M3m5FXzuxRzUU_QULxB_sdJTVd7NGppQ@mail.gmail.com> <510ED0FF.5070100@filezilla-project.org>
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Cc: "ftpext@ietf.org" <ftpext@ietf.org>
Subject: Re: [ftpext] New Version of FTP HASH, RANG, LOCK, and HOST
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On 03/02/13 22:05, Tim Kosse wrote: > Hi, > > here's my review of the LOCK draft: > In other words, the additional problems with firewalls and NAT devices > caused by LOCK completely defeat its intended purpose. > > There is a good solution for this problem though, namely FTP over TLS. > Following the AUTH TLS command, most firewalls and NAT routers stop > interfering with the control connection. Perhaps mandate FTP over TLS > for LOCK? Worth suggesting as a note, but I don't think it should be required. > 2. What about Telnet signals (e.g. IP and Synch) on the NVT during a > transfer? > > Suggestion: Not allowed during a running transfer. > > > 3. How is the STAT command to be handled? > > From RFC959: The command may be sent during a file transfer (along with > the Telnet IP and Synch signals--see the Section on FTP Commands) in > which case the server will respond with the status of the operation in > progress > > There's no way to send the STAT reply during an ongoing download (e.g. > RETR) if LOCK is being used. > > During an ongoing upload (e.g. STOR), how should STAT be handled? > > Suggestion: No STAT during a running transfer allowed. I think the LOCK command should be changed (and probably renamed) into a command multiplexing the connection. The current LOCK command would be equivalent to multiplexing one channel with the control connection. But it would add support to send commands/signals/replies between chunks, plus doing several transmissions in parallel.
- [ftpext] New Version of FTP HASH, RANG, LOCK, and… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Bruce Blackshaw
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Ángel González
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Alun Jones
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Ángel González
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Alun Jones
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Bruce Blackshaw
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Alun Jones
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Alun Jones
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Tatsuhiro Tsujikawa
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Alun Jones
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Tatsuhiro Tsujikawa
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Ángel González
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Hans Andersen
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Tim Kosse
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Ángel González
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan
- Re: [ftpext] New Version of FTP HASH, RANG, LOCK,… Anthony Bryan