nixpkgs/nixos/modules/system
Florian Klink 9be0327a49 nixos/systemd: install sysctl snippets
systemd provides two sysctl snippets, 50-coredump.conf and
50-default.conf.

These enable:
 - Loose reverse path filtering
 - Source route filtering
 - `fq_codel` as a packet scheduler (this helps to fight bufferbloat)

This also configures the kernel to pass coredumps to `systemd-coredump`.
These sysctl snippets can be found in `/etc/sysctl.d/50-*.conf`,
and overridden via `boot.kernel.sysctl`
(which will place the parameters in `/etc/sysctl.d/60-nixos.conf`.

Let's start using these, like other distros already do for quite some
time, and remove those duplicate `boot.kernel.sysctl` options we
previously did set.

In the case of rp_filter (which systemd would set to 2 (loose)), make
our overrides to "1" more explicit.
2019-08-18 17:54:26 +02:00
..
activation nixos/hardware.deviceTree: new module 2019-08-07 13:51:22 +01:00
boot nixos/systemd: install sysctl snippets 2019-08-18 17:54:26 +02:00
etc Revert "Merge pull request #54980 from danbst/etc-relative" (#56507) 2019-02-28 07:48:40 +02:00