SUMMARY: how to check for sendmail version & telnet problems

From: Hee_Meng_HO@lta.gov.sg
Date: Thu Sep 07 2000 - 00:58:44 CDT


Hello all,

Special thanks to the following gurus who helped. You guys are great!
J. J. Johnson
Emanuel Almeida
Sean Quaint
Brett Lymn
Jay Lessert

The following are the answers to my question (see below):
1) There is another way of checking for the sendmail version. Try:
     # /usr/lib/sendmail -bt -d

You should see:

     Version 8.9.3+Sun
     Compiled with: LDAPMAP MAP_REGEX LOG MATCHGECOS MIME7TO8 MIME8TO7
                    NAMED_BIND NDBM NETINET NETINET6 NETUNIX NEWDB NIS
NISPLUS
                    QUEUE SCANF SMTP USERDB XDEBUG

Another variant is this:

     # /usr/lib/sendmail -d0.1 -bt < /dev/null

I think both means the same thing :)

2) On the box that you are trying to connect to, edit the following
etc/default/login file
  and "comment" the line as follows:

# If CONSOLE is set, root can only login on that device.
# Comment this line out to allow remote login by root.
#
#CONSOLE=/dev/console

Actually, I have yet to try them as my system administrator is busy. On the
other hand, it's only polite if I submit the summary early. Anyway, I think
it should work since others have tried them successfully. I'll try it once
my sys admin is free. If the results are different from the above, I'll
post another summary.

cheers!
heemeng

*** Original Question ***

Hi gurus,

I'm currently trying to check for the version of sendmail used in our
servers.

I know of one way of doing so, that is to telnet locally to the server
itself.

After logging in, I managed to get the following from one of my servers:
  Trying ::1...
  Connected to localhost.
  Escape character is '^]'.
  220 STM1@nirvana.com.sg ESMTP Sendmail 8.9.3+Sun/8.9.3; Mon, 28 Aug
2000
15:25:18
   +0800 (SGT)

>From the above, I identified that the sendmail version used is 8.9.3

However, when I repeated the same process on another server, I get:
  Not on system console
  Connection closed by foreign host

Somehow, it does not work! I checked the /etc/inetd.conf file and
verified
that telnet daemon is enabled.

My questions:
1) Are there any other methods of checking for the sendmail version?
2) What happened on my second server? Have anyone encountered this
before?
Please advise.

Lastly, a million thanks in advance. I'll summarize once I get the
feedbacks :)

cheers!
heemeng

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