FIX: Syntax error in /etc/sysctl.d/99-reserved-ports.conf

[jertel]

I noticed that all my SO2 nodes had a failure on systemd-sysctl and the issue is /etc/sysctl.d/99-reserved-ports.conf

The config that is set during installation are:
net.ipv4.ip_local_reserved_ports="55000,57314"

This syntax works directly with sysctl -w but not running sysctl -p

cat /etc/sysctl.d/99-reserved-ports.conf
net.ipv4.ip_local_reserved_ports="55000,57314"
sysctl -p /etc/sysctl.d/99-reserved-ports.conf
sysctl: setting key "net.ipv4.ip_local_reserved_ports": Invalid argument
net.ipv4.ip_local_reserved_ports = "55000,57314"

Removing the "" corrects this:

cat /etc/sysctl.d/99-reserved-ports.conf
net.ipv4.ip_local_reserved_ports=55000,57314
sysctl -p /etc/sysctl.d/99-reserved-ports.conf
net.ipv4.ip_local_reserved_ports = 55000,57314

I tested this on both Ubuntu 18 and Centos 7.9 and got the same behaviour.

Originally posted by @trocade in #3276