sysctl configuration to raise UDP buffer size

Installation

Please note: When you installed syncthing using the official deb package, you can skip the copying.

Copy the file 30-syncthing.conf to /etc/sysctl.d/ (root permissions required).

In a terminal run

sudo sysctl -q --system

to apply the sysctl changes.

You can verify that the new limit is active using

sysctl net.core.rmem_max