At 11:23 AM 3/4/2002 -0600, you wrote:
>that module is for accepting DCC connections, a feature of IRC clients. 
>note that you do not need to load it for normal IRC chatting, only for DCC 
>chats/file transfers, which are rare outside of the warez crowd nowadays.

Ah, that explains why my warez site in the sky isn't working.. I was giving 
out illegal copies of Linux to anyone that wanted it. Oh wait..

;)

Regards, Dustin



>-Tim
>
>
>
>Dustin Puryear wrote:
>
>>At 08:22 AM 3/4/2002 -0600, you wrote:
>>
>>>         If I read this right, this only affects people who are silly 
>>> enough to put IRC on their firewall.
>>
>>
>>I don't think so. Unless I'm mistaken, if you load the irc module for 
>>netfilter (similar to the ftp or realaudio module) then you may be 
>>vulnerable. I would think a lot of the netfilter scripts floating around 
>>do so. (For those that don't know, these modules help netfilter modify 
>>packets as they traverse the firewall. They are needed because some 
>>protocols, like ftp, embed client information (ie., IP addresses) in the 
>>data field.) I just checked and found the irc module on my RH7.2 system:
>>
>>/lib/modules/2.4.9-31/kernel/net/ipv4/netfilter/ip_nat_irc.o
>>
>>To be honest, I have played much with netfilter, and I don't know exactly 
>>what ip_nat_irc does.However, if you are using netfilter you may want to 
>>see if you have that module loaded with lsmod:
>>
>># lsmod
>>
>>I just looked at the source:
>>
>>http://www.linuxhq.com/kernel/v2.4/patch/patch-2.4.14-pre7/linux/net/ipv4/netfilter/ip_nat_irc.c.html
>> 
>>
>>
>>And this does indeed appear to be for clients of IRC, and not those just 
>>running servers.
>>
>>Regards, Dustin
>>
>>
>>---
>>Dustin Puryear <[EMAIL PROTECTED]>
>>Information Systems Contractor
>>http://members.telocity.com/~dpuryear
>>PGP Key available at http://www.us.pgp.net
>>In the beginning the Universe was created.
>>This has been widely regarded as a bad move. - Douglas Adams
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---
Dustin Puryear <[EMAIL PROTECTED]>
Information Systems Contractor
http://members.telocity.com/~dpuryear
PGP Key available at http://www.us.pgp.net
In the beginning the Universe was created.
This has been widely regarded as a bad move. - Douglas Adams

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