On Oct 28, 2005, at 7:45 AM, lasa wrote:
I would like to know
1. Is Red Hat ES exactly like Cent OS? (comparing the Security,
protection,
Kernel and other applications)
Please search the archives, this has been discussed numerous times
(even in the last week).
2. How can we find out the open ports and unwanted applications
that easily
intruder can hack if they are installed in a Mail server and DNS
server?
(details for any web site or any book)
Nessus is a utility for vulnerability scanning. If you are on the
server in question, you can use "netstat -vat" and "netstat -vau" to
see listening TCP and UDP ports, respectively. If you see any
unknown services, you can use "lsof -i <protocol>:<port>" to
determine what processes are listening. Example:
[root@colo root]# lsof -i tcp:465
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
master 2138 root 14u IPv4 4662 TCP *:smtps (LISTEN)
--
Jason Dixon
DixonGroup Consulting
http://www.dixongroup.net
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