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If DNS is not available then, I can access system directly via the IP address. Is it possible for a kernel level deamon to listen to some ports, inorder for inserting things directly into the kernel, via some remote machines? On 5/2/06, Valdis.Kletnieks@vt.edu <Valdis.Kletnieks@vt.edu> wrote: > On Tue, 02 May 2006 07:51:18 +0500, Irfan Habib said: > > I wanted to know if modulescan be developed in the linux kernel, which > > can create TCP/UDP sockets and communicate with perhaps webservices, > > residing in the user level in the same computer or in some other > > computer. > > > Is a networking API available in the linux kernel which can be used by > > linux kernel modules, if so is there any documentation for it? > > It's generally considered a Bad Idea, as it's almost certainly easier to > do in userspace. If you're trying to to instrument a network-based monitoring > system and need access to kernel data, you're *much* better off having the > kernel export the data via netlink or even abuse of /proc or /sys, and then > a small userspace program read the data and ship it over the net. There's > a *lot* of things that you just won't have access to in kernel space (for > starters, you don't have a DNS resolver, so you can't use hostnames for > configuration). > > If you're determined to do this in kernelspace anyhow, see the > linux-2.6-tux.patch in recent RedHat/Fedora kernels, and ask yourself why > that patch has no hope of being accepted upstream (although I have a great > amount of respect for a lot of things that come out of RedHat, *that* patch > is best described "a fully RFC1925-compliant networking pig, with afterburners") > > > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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