Comment 95 for bug 31037

Revision history for this message
andrew667 (andrei-yurevich) wrote : Re: [Bug 31037] Re: Vino-server takes 90% of cpu when only listening for incoming connections

Hello, Jim! Usually all devices in your network must be configured
with unique IP and MAC . If you connect to any host, you should know
the remote ip-address or host name.
If you have dublicated ip-addresses, the connection will be
established with the current IP in the ARP-table of your host. Verify
ip-addressing in the network, and you will be able connect to remote
host with the first attempt.

On Fri, Sep 16, 2011 at 1:59 AM, Jim Neel <email address hidden> wrote:
> I know this thread is kind of old and somewhat redundant. However, I do
> have 2 cents to add here. I saw mentioned a few times here that it seems
> like "vino-server" jumps up the CPU usage after a bad login attempt. I
> am running Lucid 10.04 and I use VNC quite a bit. I only found this
> thread because I too was experiencing high (90%) CPU usage when using
> VNC. I run at about 14% when not connected to Vino but the process is
> still running.
>
> Here is my 2 cent comment as to the "Bad Login" attempts. I run about 9
> computers on my network. I have 5 computers running Windows 2000, 1
> running Windows XP, 2 Macs running 10.5.8 and now 1 running Ubuntu
> 10.04. My main "gateway" router is forwarding ports 5900, and so on, for
> VNC which is running on all computers on my network. On any given day my
> computer listening on port 5900 will get approx. 20 "Invalid Attempt"
> errors in my System Management Utility. This means that there are
> computers scanning the Internet looking for computers with port 5900
> open and then tries to make the connection.
>
> I'm just wondering if that is the problem that some are having here. You
> could possibly be getting these "Hack" attempts from outside. When they
> get the password wrong then it sends your CPU usage through the roof.
> Obviously you have no idea that the attempt is be made from the outside
> unless this can be monitored (Like in Windows).  Just a little "food for
> thought"
>
> I hope this information could possibly help somebody.
> -Jim
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/31037
>
> Title:
>  Vino-server takes 90% of cpu when only listening for incoming
>  connections
>
> Status in Avahi:
>  New
> Status in GNOME Remote Desktop:
>  Fix Released
> Status in “vino” package in Ubuntu:
>  Fix Released
> Status in “vino” source package in Lucid:
>  Confirmed
> Status in Baltix GNU/Linux:
>  New
>
> Bug description:
>  The load of Vino-server becomes about 90 % of the cpu. It goes as far
>  as 99% of total cpu usage. A simple "killall vino-server" reduces cpu
>  load to 5-10 %. I have know idea why vino-server takes that much of
>  cpu. I didn't make any connection to it. It just happens after a
>  while.
>
>  [PLEASE: ANYBODY RE-OPEN THIS BUG BECAUSE IT REAPEAR ON FEISTY]
>
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