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Implementing TLS with Sendmail and having problem with cert request

 
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Old 04-20-2010
Implementing TLS with Sendmail and having problem with cert request
Hi. One of my company's customers requires mails to be sent to them to use TLS. Thanks to some good documentation on the web, I've got this mostly figured out, but now I'm stuck at generating the CSR.

My company's mail domain is sg.bunny.com (not real address, obviously), but the email gateway (running sendmail 8.14.4) has the following DNS records:

mail.sg.bunny.com 192.168.1.1 MX
eg1.bunny.com.sg 192.168.1.1 A
1.1.168.192.in-addr.arpa eg1.bunny.com.sg PTR
1.1.168.192.in-addr.arpa flop.bunny.com.sg PTR

Which hostname should I use for the CN on the cert? The one that corresponds to the MX record or the A record?

Don't ask me why the server is registered with 3 different names. No idea why my predecessor did that.
Last edited by pierreery; 04-20-2010 at 05:03 AM..
 
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LEARN ABOUT HPUX

ldap_start_tls_s

LDAP_TLS(3)						     Library Functions Manual						       LDAP_TLS(3)

NAME

       ldap_start_tls, ldap_start_tls_s, ldap_tls_inplace, ldap_install_tls - LDAP TLS initialization routines

LIBRARY

       OpenLDAP LDAP (libldap, -lldap)

SYNOPSIS

       #include <ldap.h>

       int ldap_start_tls(LDAP *ld);

       int ldap_start_tls_s(LDAP *ld, LDAPControl **serverctrls, LDAPControl **clientctrls);

       int ldap_tls_inplace(LDAP *ld);

       int ldap_install_tls(LDAP *ld);

DESCRIPTION

       These  routines are used to initiate TLS processing on an LDAP session.	ldap_start_tls_s() sends a StartTLS request to a server, waits for
       the reply, and then installs TLS handlers on the session if the request succeeded. The routine  returns	LDAP_SUCCESS  if  everything  suc-
       ceeded,	otherwise  it returns an LDAP error code.  ldap_start_tls() sends a StartTLS request to a server and does nothing else. It returns
       LDAP_SUCCESS if the request was sent successfully.  ldap_tls_inplace() returns 1 if TLS handlers have been installed on the specified  ses-
       sion,  0  otherwise.   ldap_install_tls()  installs  the  TLS  handlers on the given session. It returns LDAP_LOCAL_ERROR if TLS is already
       installed.

SEE ALSO

       ldap(3), ldap_error(3)

ACKNOWLEDGEMENTS

       OpenLDAP Software is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>.  OpenLDAP Software is	derived  from  the
       University of Michigan LDAP 3.3 Release.

OpenLDAP							    2017/06/01							       LDAP_TLS(3)