From: Stephanie Chung (stepchung@yahoo.com)
Date: Mon Mar 21 2005 - 12:43:57 EST
Hi List,
My DBA runs OEM (Oracle Enterprise Management)
monitoring software and it spits out the 48 violation
ports opened on my server. He gave the list to my
boss, and guess what, my boss told me I am not doing
enough to hardening my server. The OEM complaints “48
open ports have the potential of permitting a
malicious user to take over the host. Oracle
recommends that you close all unnecessarily open
ports, especially on internet-facing hosts”. These
ports ranging from 7 through 7815. I get a copy of all
HP-UX ports and Port Range use from:
http://docs.hp.com/en/5990-7252/ch01s01.html
My job now is to identify these 48 ports to see if my
server is using these ports or not. If not, I have to
close it from the server. My problem is I don’t know
how to.
Take an example of port number 19.
- How do I know if my server is using port 19?
- How do I close port 19 from the server?
- How do I test if port 19 is closed or open from the
serer?
My /etc/services file shows:
chargen 19/tcp ttytst source # Character
Generator
chargen 19/udp ttytst source #
My understanding is /etc/services file is only the
display. Uncomment the lines in that file will not
close the port. Man, I need help real bad here. Thanks
for your help…and appreciation.
Stepahnie
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