I have a port in /etc/services (1521) that I want to change the
description of so when I run tcpdump or wireshark it displays the proper string.

port 1521 is defined for ncube-lm (because it's officially registered) but it's being used by lsnrctl for
I changed the description in /etc/services and rebooted the server.
If I
run wireshark and monitor on that port it comes up as:
TCP 10983 > ncube-lm [FIN, ACK].
How do I get the /etc/services change to be updated ?