Disable IPv6 by default.

Dennis Gilmore dennis at ausil.us
Thu Sep 13 15:12:18 UTC 2007

On Thursday 13 September 2007 10:01:25 am Jóhann B. Guðmundsson wrote:
> John Reiser wrote:
> >> I use ipv6 daily.  why should i go through extra steps when having both
> >> enabled does not hurt people with ipv4 only connections?
> >
> > Perhaps you've heard of the recommended policy "turn off all unused
> > services"? Enabling IPv6 wastes RAM (several dozen pages) and is a
> > security risk when the only connections used are IPv4.
> >
> > Just publicize the easy OFF switch:
> > ----- /etc/modprobe.conf
> > alias net-pf-10 off
> > -----
> Hear Hear...
> Best regards.
>               Johann B.
Please provide proof of your claims.  where is the security risk?   Johann.  
why exactly do you want ipv6 disabled?  

Personally other than using it now.  i think that it will be a big step 
backwards if we disabled ipv6 by default.  for one thing the DOD has mandated 
that all there systems be running ipv6 by 2008 
http://www.networkworld.com/news/2005/080105-ipv6.html so you will see much 
faster acceleration of ipv6 services and usage within the next year since US 
govt contractors will need to have ipv6 to do there job.


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