Hello, Oh, I have no idea why I missed that patch. The changes for unbound have been integrated though which is why this is in the change log. In current next, net.ipv4.tcp_fastopen is already set, so this patch can be marked as merged. Best, -Michael > On 29 Jan 2019, at 09:08, ummeegge wrote: > > Regarding to the Core 127 announcement where it has been outlined that > the "system is now using TCP fast-open where possible" i wanted to > report that the regarding patch --> > https://patchwork.ipfire.org/patch/2001/ > is possibly missing cause the responsible line in sysctl.conf > net.ipv4.tcp_fastopen = 3 > is after an update to Core 127 not presant. > > Best, > > Erik >