On Sat, 2013-10-26 at 21:37 +0200, Roland RoLaNd wrote:
> All,
> 
> 
> I'm reading up on how to harden debian.
> i just checked /etc/sysctl.conf  and noticed that everything is
> commented out.
> do that mean they're running as defaults or none of what exists in
> this file is implemented?

What do you expect?

I'm using another distro that switched.

ls /etc/sysctl*
/etc/sysctl.conf.pacnew  /etc/sysctl.conf.pacsave

/etc/sysctl.d:

blah

To my surprise, there where unusual settings in /etc/sysctl.conf, I
dropped them during the transition.

What exactly should be not commented out by default?

For the distro I'm using there only is

net.ipv4.tcp_syncookies = 1
net.ipv4.ip_forward = 0
net.ipv6.conf.all.forwarding = 0

by default. I had much more in my /etc/sysctl.conf, caused by what ever
package, but not by me and after I dropped those settings, nothing evil
happened.

So again, what should be enabled by this file?




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