Inetd.conf
Inetd, the internet daemon super server is typically used to run some daemons and services like telnetd or ftpd. UNIX systems like Solaris and other commercial unicies typically still use inetd and enable a lot of bad services by default. Comment out, (#) services which are not used or are considered a risk.
The general consensus of so called unsecure or risky services are... All of them. If possible disable everything.
As an example, Pipeline was left with one active line in it's inetd.conf, and it looked like this:
ftp stream tcp nowait root /usr/sbin/tcpd /usr/local/sbin/vsftpd /usr/local/etc/vsftpd.conf
Check out man inetd.