updates

[Predrag Punosevac]

Dear Autonians,

Just a quick update. This morning I patched all our network machines
(Auton Sytems and NREC included) for TCP SACK holes per

https://www.openbsd.org/errata65.html

I also upgrade all file servers (again Auton Systems and NREC included)
and FreeBSD jails to

11.3-RELEASE-p1

Everything seems to be working as expected. This might have been
observed by some of you as a short interruption in the traffic. Sorry
for that. Machine with a very long uptimes are by definition
unmaintained.

Predrag