The -k Option of Telnet Command
Ken Hoyt <hoyt@hpindyo.cup.hp.com> Fri, 17 November 1995 20:52 UTC
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To: telnet-ietf@cray.com
Cc: hoyt@hpindyo.cup.hp.com, marjo@hpindyo.cup.hp.com
Subject: The -k Option of Telnet Command
Date: Fri, 17 Nov 1995 12:43:57 -0800
Sender: ietf-archive-request@IETF.CNRI.Reston.VA.US
From: Ken Hoyt <hoyt@hpindyo.cup.hp.com>
We are attempting to support Kerberos 5 authentication on our Telnet and are being asked to support the "-k <realm>" option for the telnet command. However, I noticed the following code segment in the BSD telnet command code (from main.c): case 'k': #if defined(AUTHENTICATION) && defined(KRB4) { extern char *dest_realm, dst_realm_buf[], dst_realm_sz; dest_realm = dst_realm_buf; (void)strncpy(dest_realm, optarg, dst_realm_sz); } #else fprintf(stderr, "%s: Warning: -k ignored, no Kerberos V4 support.\n", prompt); #endif break; In this code, it seems obvious to me that the -k option is not supported outside of Kerberos 4 authentication. Therefore, my questions are: 1. Is it really true that the -k option is only supported within Kerberos 4 authentication and thus not intended for support within Kerberos 5 authentication? 2. a. If the answer to #1 is yes, then is there another way in which this functionality is implemented? b. If the answer to #1 is no, please elaborate on what it would take to support the -k option for Kerberos 5. I apologize if this seems like a trivial or obvious matter, but I want to make sure I am clear on this issue. Thank you. - Ken Hoyt (hoyt@cup.hp.com) Hewlett-Packard (408) 447-3042
- The -k Option of Telnet Command Ken Hoyt
- Re: The -k Option of Telnet Command Theodore Ts'o