Turning off ipv6

[Paul Allen Newell]

Patrick O'Callaghan wrote:
> On Wed, 2010-02-10 at 14:10 +0000, Timothy Murphy wrote:
>   
>> Patrick O'Callaghan wrote:
>>
>>     
>>>> To disable ipv6 on F12 on the next reboot just add the line
>>>>
>>>> net.ipv6.conf.all.disable_ipv6 = 1
>>>>
>>>> to your /etc/sysctl.conf file.
>>>>
>>>> To disable it right away issue the command
>>>>
>>>> sysctl -w net.ipv6.conf.all.disable_ipv6=1
>>>>         
>>> Thank you. That looks like the Right Way (tm) to do it.
>>>       
>> As a matter of interest,
>> why do you prefer this to modifying ifcfg-eth?
>> in /etc/sysconfig/network-scripts/ ,
>> which was suggested earlier?
>>
>> Do both work, I wonder?
>>     
>
> I prefer changing something in /etc/sysctl.conf because it's clearly
> where this kind of configuration change belongs. Changing ifcfg-eth0 may
> or may not work at the moment -- I'm guessing it probably does -- but
> it's a kludge that depends on the functioning of a specific script which
> in some future version could change.
>
> It's a judgment call based on many years experience of messing with
> systems and having the floor move under my feet :-)
>
> poc
>
>   
poc:

Interesting points, but not certain whether I agree. Given that the 
"IPV6INIT=no" seems to be an accepted option in ifcfg-eth0, I am not 
certain whether it is a "kludge". Actually, I picked up the info about 
it from this list in 2008 while trying to figure out how to get my local 
network behaving along with internet access and this was "the suggestion 
du jour". Mind you, there were cavaets about issues on LANs, but I never 
saw any problems and it certainly did the trick. And I can't understand 
how LANs would not respect ifcfg-eth0 on each machine of the local net 
(but I'm a newbie in that area, so my "understanding" may be ignorance).

I'll give a shot at trying the other suggestion with the IPV6INIT 
comment out in ifcfg-eth0 to see if it works which I snip from the thread:

===
 > >> To disable ipv6 on F12 on the next reboot just add the line
>  >>
>  >> net.ipv6.conf.all.disable_ipv6 = 1
>  >>
>  >> to your /etc/sysctl.conf file.
===

But it seems that there should be a "Fedora-approved" way to not deal 
with ipv6 rather than all of us having "best solutions". If anyone 
associated with Fedora is reading, can they provide the "proper way to 
handle this" (including the option of telling me I didn't read some doc 
and citing it)?

Paul