lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Fri, 4 Jul 2008 13:04:40 +0200
From:	"Jens-Michael Hoffmann" <>
To:	"H. Peter Anvin" <>,
	"Jan Engelhardt" <>
Cc:	<>
Subject: AW: tcp/ip connect on demand

>Jan Engelhardt wrote:
>> On Thursday 2008-07-03 20:28, H. Peter Anvin wrote:
>>> Jens-Michael Hoffmann wrote:
>>>> hi,
>>>> what is the right way to implement a "connect on demand" feature?
>>>> Example: user types url in firefox and presses return. Then
>>>> the system should set up network devices and proceed as usual.
>>>> Is there a hook in the kernel we can use?
>>> In the kernel, no.  Nor do you need one; the best place to hook into this is
>>> probably the name service system (so you catch it on trying to look up
>>> hostnames.)
>>> Alternatively, you can set up a bridge device which you can listen to via a tap
>>> device; when you see traffic, you bring up the real network and attach it to
>>> the bridge.
>> There is on-demand for PPP devices; though that is probably specific
>> to PPP.

> Yes, those monitor traffic at the PPP device port, I believe.

thanks for the help guys, that looks like what we are looking for.

Best regards

Jens-Michael Hoffmann
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists