How to turn off telnetd on FreeBSD
There is a brand new
remote FreeBSD vulnerability in telnetd
in all its versions starting from version 7 to 9. It is therefore
advisable that the telnet daemon be completely disabled.
To
disable telnetd on FreeBSD:
1. Open /etc/inetd.conf
freebsd# vi /etc/inetd.conf
2. Comment out the line
telnet stream tcp nowait root /usr/libexec/telnetd
telnetd
e.g.:
#telnet stream tcp nowait root /usr/libexec/telnetd
telnetd
3. Restart inetd
freebsd# /etc/rc.d/inetd restart
The whole remote root telnetd FreeBSD security advisory (SA),
can be read here