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Old 05-12-2009, 03:45 PM   #1
Stragard
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Different parts of kernal


I recently started learning more about linux and discovered iptables and read somewhere that this application is currently considered to be part of the kernal. Is this true? If so, are their other applications in the kernal and what are they? If it would be easier to point me to a list somewhere that will be fine. Thanks.
 
Old 05-12-2009, 03:50 PM   #2
Tinkster
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Hi, welcome to LQ!

It depends on how you define "iptables".

The filtering happens on kernel level, but that's not "an application".

The application iptables that allows you to inject rules into kernel
space actually runs in userspace.



Cheers,
Tink
 
Old 05-12-2009, 04:43 PM   #3
acid_kewpie
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The part of the equation that is kernel based is called netfilter, with iptables being the user land tool to modify / interogate it's configuration.
 
Old 05-12-2009, 09:28 PM   #4
onebuck
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Hi,
Quote:
Originally Posted by Stragard View Post
I recently started learning more about linux and discovered iptables and read somewhere that this application is currently considered to be part of the kernal. Is this true? If so, are their other applications in the kernal and what are they? If it would be easier to point me to a list somewhere that will be fine. Thanks.
Welcome to LQ!

I'm not sure what you mean by 'applications' but you might find 'Linux Kernel in a Nutshell' to aid you in your endeavors with the GNU/Linux Kernel. This link is in the 'Linux Kernel' section of 'Slackware-Links'. More than just SlackwareŽ links!

EDIT:
BTW, check out the other Kernel links within the above reference links

Last edited by onebuck; 05-12-2009 at 09:30 PM.
 
Old 05-12-2009, 11:14 PM   #5
Stragard
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Thank you for the answers. Yes, I meant netfilter instead of iptables and I guess I wanted to know more about the different parts of the linux kernal. It seems like the Linux Kernel in a Nutshell online book should provide the information I want.
 
  


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