Can not log in as root via telnet when "ktelnet" service is enabled
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SUSE Linux Enterprise Server 11 Service Pack 1
At the same time, the krb5-apps-servers package contains a xinetd config file, /etc/xinetd.d/ktelnet, which declares itself as the handler for the telnet service. When xinetd reads its configuration at startup, /etc/xinetd.d/ktelnet takes precedence over /etc/xinetd.d/telnet, and therefore xinetd will launch the /usr/lib/mit/sbin/telnetd daemon after a telnet client connects to the server on TCP port 23, instead of launching /usr/sbin/in.telnetd.
To resolve this issue, edit the /etc/xinetd.d/ktelnet file and change the "service telnet" declaration on line 4 to "service ktelnet". After doing this change, run "rcxinetd restart". Now, the /etc/securetty aware /usr/sbin/in.telnetd daemon will be available on port 23, and the kerberized telnet daemon /usr/lib/mit/sbin/telnetd will be available on port 6623, which is the IANA Registered Port number[*] for this service. This configuration will allow you to log in as root via telnet to TCP port 23.
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- Document ID:7007097
- Creation Date: 25-Oct-2010
- Modified Date:03-Mar-2020
- SUSE Linux Enterprise Server
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