[arch-dev-public] Moving from procps to procps-ng?

Eric Bélanger snowmaniscool at gmail.com
Mon Apr 30 15:48:06 EDT 2012


On Mon, Apr 30, 2012 at 3:18 PM, Eric Bélanger <snowmaniscool at gmail.com> wrote:
> On Mon, Apr 30, 2012 at 3:03 PM, Dan McGee <dpmcgee at gmail.com> wrote:
>> On Mon, Apr 30, 2012 at 2:00 PM, Eric Bélanger <snowmaniscool at gmail.com> wrote:
>>> On Mon, Apr 30, 2012 at 8:34 AM, Dan McGee <dpmcgee at gmail.com> wrote:
>>>> On Sat, Apr 28, 2012 at 8:01 PM, Eric Bélanger <snowmaniscool at gmail.com> wrote:
>>>>>
>>>>> Here's a tentative sysctl.conf : https://dev.archlinux.org/~eric/sysctl.conf
>>>>> that I obtained with the help of Jan and Dave on IRC.  The unusefull
>>>>> stuff from the upstream config have been dropped and the rest has been
>>>>> commented out. I've also cleaned the syntax.
>>>>
>>>>
>>>> I'd change this comment to at least drop the silly ascii smiley face:
>>>>    # makes you vulnerable or not :-)
>>>> and try to elaborate more, e.g.
>>>>    # if not functioning as a router, there is no need to accept
>>>> redirects or source routes
>>>>
>>>> And maybe add the corresponding ipv6 settings too, since this is 2012.
>>>
>>> Sure. I also got an email from a user who suggested to remove them
>>> (the  accept_redirects and source_route) as well as the forwarding as
>>> they are are turned off by default. What do you think about that? I
>>> think we can keep them. The old procps sysctl.conf has the forward
>>> option and the redirect is probably a common option too.
>>
>> My kernel says otherwise about accept_redirects, at least:
>>
>> dmcgee at galway ~
>> $ sudo sysctl -a | grep all.accept_redirects
>> net.ipv4.conf.all.accept_redirects = 1
>> net.ipv6.conf.all.accept_redirects = 1
>>
>> dmcgee at galway ~
>> $ sudo sysctl -a | grep all.accept_source_route
>> net.ipv4.conf.all.accept_source_route = 0
>> net.ipv6.conf.all.accept_source_route = 0
>
> I just checked and it's the same here. Let's keep them then and I'll
> make the changes you suggested.

I've uploaded a fixed config file: https://dev.archlinux.org/~eric/sysctl.conf

BTW, Should I add a net.ipv4.conf.all.forwarding option? Can it
replace the current net.ipv4.ip_forward ?

Eric


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