Changing linux kernel params for Oracle Enterprise Install

One of the things that Oracle needs on Linux is some specific kernel parmeters setting. These I changed in:

/etc/sysctl.conf

The settings I used were:
# Oracle XE Recommended Values
kernel.sem = 250 32000 100 128
kernel.shmmax = 536870912
# Oracle Enterprise Recommended Values
net.core.rmem_default=262144
net.core.rmem_max=262144
net.core.wmem_default=262144
net.core.wmem_max=262144
net.ipv4.ip_local_port_range = 1024 65000