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From: Gerd Hoffmann <kraxel@redhat.com>
To: Gonglei <arei.gonglei@huawei.com>
Cc: "Huangweidong (C)" <weidong.huang@huawei.com>,
	"Huangpeng (Peter)" <peter.huangpeng@huawei.com>,
	qemu-devel@nongnu.org, Anthony Liguori <aliguori@amazon.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 6/6] vnc: track & limit connections
Date: Mon, 20 Oct 2014 09:02:43 +0200	[thread overview]
Message-ID: <1413788563.3509.7.camel@nilsson.home.kraxel.org> (raw)
In-Reply-To: <5440B85F.3060307@huawei.com>


  Hi,

> If we set the max trying times, and then
> There are some concepts:
>  - INTERVAL_TIME: a time window that user can connnet vnc server
>  - REJECT_TIME: the time of reject any connection
>  - MAX_TRY_TIMES: the times that user can connect vnc server in INTERVAL_TIME,
>    if attach the MAX_TRY_TIMES, the server will lock, any user can not connect again
>    before REJECT_TIME attached. The old connected client will not be influenced.

i.e. effectively rate-limit login attempts.  Makes sense to have an
option for that, although I'm not sure it is worth the trouble doing
something beyond a simple "one attempt per second allowed" (i.e. stop
polling the listening socket for a second after each accept).

cheers,
  Gerd

  parent reply	other threads:[~2014-10-20  7:03 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-15 12:19 [Qemu-devel] [PATCH 0/6] vnc: add support for multiple vnc server instances Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 1/6] vnc: remove vnc_display global Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 2/6] vnc: remove unused DisplayState parameter, add id instead Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 3/6] vnc: switch to QemuOpts, allow multiple servers Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 4/6] vnc: allow binding servers to qemu consoles Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 5/6] vnc: update docs/multiseat.txt Gerd Hoffmann
2014-10-15 12:19 ` [Qemu-devel] [PATCH 6/6] vnc: track & limit connections Gerd Hoffmann
2014-10-15 12:31   ` Daniel P. Berrange
2014-10-15 14:19     ` Gerd Hoffmann
2014-10-15 14:39       ` Daniel P. Berrange
2014-10-16 10:46         ` Gerd Hoffmann
2014-10-17  6:34           ` Gonglei
2014-10-17  6:38             ` Daniel P. Berrange
2014-10-17  6:54               ` Gonglei
2014-10-20  7:02             ` Gerd Hoffmann [this message]
2014-10-21  6:06               ` Gonglei
2014-10-21  8:57                 ` Gerd Hoffmann
2014-10-21  9:10                   ` Gonglei
2014-10-21  9:35                     ` Gerd Hoffmann
2014-10-21 10:32                       ` Gonglei
2014-10-15 14:51   ` Eric Blake
2014-10-15 12:32 ` [Qemu-devel] [PATCH 0/6] vnc: add support for multiple vnc server instances Daniel P. Berrange
2014-10-15 14:29   ` Gerd Hoffmann
2014-10-15 14:41     ` Daniel P. Berrange
2014-10-15 12:51 ` Daniel P. Berrange
2014-10-15 14:30   ` Gerd Hoffmann
2014-10-15 14:48 ` Eric Blake

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