[Pdx-pm] IO::Socket::INET wakeup call
Roderick A. Anderson
raanders at acm.org
Fri Mar 3 08:39:08 PST 2006
Lisa Kachold wrote:
> Roderick,
>
> This depends entirely on where in the OSI stack your connection is failing.
>
> If you are connecting on either side through a 802.11b/g firewall
> Netgear or Linksys device, your connection might actually be failing for
> a number of reasons:
Thanks Lisa.
The two systems are on an internal switch. After sending the message
out yesterday I got thinking it might be a Windows NIC driver issue.
I'll be checking on the WAKE on LAN settings and/or the-go-to-sleep-when
-no-activity is set.
I'm also going to go the cheap route and ping the system before making
an IO connection attempt.
Again thanks for the thoughts and links.
Rod
--
> Problems:
> http://www.networkworld.com/columnists/2005/070405nutter.html
>
> Router Solutions:
> http://wrt-wiki.bsr-clan.de/index.php?title=Router_Slowdown
>
> Other Considerations:
> PPOE:
>
> -----and if you might be interested white you are out there:
>
>
> Security Podcasts
> <http://www.royans.net/rant/2006/03/01/security-podcasts/>
>
> Hackaday <http://www.hackaday.com/> has a great blog entry of all the
> nice security podcasts <http://www.hackaday.com/entry/1234000537073564/>
> out there. Here are direct itunes links to all the podcasts with a few
> more I googled.
>
> * Security Catalyst
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> * Security Now
> <http://phobos.apple.com/WebObjects/MZStore.woa/wa/com.apple.jingle.app.store.DirectAction/viewPodcast?id=79016499>
> * PaulDotCom
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> * CyberSpeak
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> * LiveAmmo Security
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> * BlueBox
> <http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=91176899&s=143455>
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> * RSA Security
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> * MightySeek
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> * eDave
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>
>
> */"Roderick A. Anderson" <raanders at acm.org>/* wrote:
>
> I'm connecting to a service running on a WinXP system using
> IO::Socket::INET and for the most part it has been great. Recently
> though I've noticed that after a long-ish period of no activity that my
> initial connect fails. I'm running in debug mode so a simple restart of
> the script and the connection works fine. When this runs in production
> mode I need it to not fail. Of course I can loop through several tries
> and exit when it connects or really errors out but this seems inelegant.
>
> I'm sure this is some stupid Windows thing where the network
> connection is sleeping and can't wake up fast enough and will look at
> the device, network, TCP/IP settings but that will not work when I
> don't
> control the Windows box.
>
> Before getting lost ( again ) in the IO::Socket, IO::Handle, IO::*
> documentation world I'm trying for a cheap answer. Is there a generic
> method to try and wake a TCP/IP connection? Sort of "Hello ... McFly!"
>
>
> TIA,
> Rod
> --
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>
>
>
> L. Kachold
> Obnosis Consulting
> (503)754-4452
> <http://www.websphere.org/websphere/Site?page=home>
>
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