Start the ubuntu telnet Client

1. sudo apt-get install xinetd telnetd
2. after the installation is successful, the system prompts sudo vi/etc/inetd. conf and add the following line to telnet stream tcp nowait telnetd/usr/sbin/tcpd/usr/sbin/in. telnetd
3. sudo vi/etc/xinetd. conf and add the following content: # Simple configuration file for xinetd # www.2cto.com # Some defaults, and include/etc/xinetd. d/defaults {# Please note that you need a log_type line to be able to uselog_on_success # and log_on_failure. the default is the following: # log_type = SYSLOG daemon info instances = 60log_type = SYSLOG authprivlog_on_success = HOST PIDlog_on_failure = HOSTcps = 25 30} includedir/etc/xinetd. d
4. sudo vi/etc/xinetd. d/telnet and add The following content: # default: on # description: The telnet server serves telnet sessions; it uses \ # unencrypted username/password pairs for authentication. service telnet {disable = noflags = REUSEsocket_type = streamwait = no www.2cto.com user = rootserver =/usr/sbin/in. telnetdlog_on_failure + = USERID}
5. restart the machine or restart the network service sudo/etc/init. d/xinetd restart
6. Use the TELNET client to remotely log on to non-root users.
7. log on to mv/etc/securetty. bak as root.
You can also:
Modify the/etc/pam. d/login file. Just comment out the following line. # Auth required lib/security/pam_securetty.so author grzrt