And now if ye will deal kindly and truly with my master, tell me:
and if not, tell me; that I may turn to the right hand, or to the
left.
-- Genesis 24:49
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How to turn off telnetd on FreeBSD
Sunday, December 25th, 2011There 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
Tags: brand, Comment, conf, daemon, freebsd, freebsd security, inetd, libexec, line, line telnet, nowait, Restart, root, security, security advisory, stream, tcp, Telnet, telnetd, usr, version, vulnerability
Posted in Computer Security, FreeBSD, System Administration | 1 Comment »