On Mon, Apr 30, 2012 at 3:18 PM, Eric Bélanger <[email protected]> wrote: > On Mon, Apr 30, 2012 at 3:03 PM, Dan McGee <[email protected]> wrote: >> On Mon, Apr 30, 2012 at 2:00 PM, Eric Bélanger <[email protected]> >> wrote: >>> On Mon, Apr 30, 2012 at 8:34 AM, Dan McGee <[email protected]> wrote: >>>> On Sat, Apr 28, 2012 at 8:01 PM, Eric Bélanger <[email protected]> >>>> 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@galway ~ >> $ sudo sysctl -a | grep all.accept_redirects >> net.ipv4.conf.all.accept_redirects = 1 >> net.ipv6.conf.all.accept_redirects = 1 >> >> dmcgee@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
