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Mailx , sendmail and mailhost

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Operating Systems Solaris Mailx , sendmail and mailhost
# 8  
Old 02-17-2016
Smiliehi all,

sorry for bring up this thread.
I happen to encounter this setup below

Code:
 
 disabled       Jan_23   svc:/network/sendmail-client:default
online         Jan_23   svc:/network/smtp:sendmail

 ps -ef | grep sendmail
    root  2838  2101   0   Jan 23 ?           0:49 /usr/lib/sendmail -bl -q15m
  oracle 25537  9002   0 20:42:07 pts/2       0:00 grep sendmail

There is also no mailhost set in the /etc/hosts nor DNS (using nslookup) and yet I can still send out email using mailx from that server.

There is a local sendmail daemon listening at port 25 though.


Does it means

1) when sendmail-client service is disabled, it just means that there will be no daemon to push the mclientqueue but mailx will still spawn a sendmail process as a msp and read the submit.cf

2) having no mailhost define in /etc/hosts and dns, and a sendmail daemon (MTA) listening at local port 25, can I say that the local sendmail MTA directly
resolve the next hop to the actual mailserver of the recipient / sending out without going through a relay ?

Regards,
NoobSmilieSmilieSmilie
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LEARN ABOUT OPENDARWIN

nifind

NIFIND(1)						      General Commands Manual							 NIFIND(1)

NAME

       nifind - find a directory in the NetInfo hierarchy

SYNOPSIS

       nifind [ -anvp ] [ -t timeout ] directory [ domain ]

DESCRIPTION

       nifind  searches for the named directory in the NetInfo hierarchy.  It starts at the local domain and climbs up through the hierarchy until
       it reaches the root domain.  Any occurrences of directory are reported by directory ID number.  If the optional domain argument	is  given,
       then nifind stops climbing at that point in the hierarchy.  The domain argument must be specified by an absolute or relative domain name.

       When invoked with the -a option, nifind searches for the named directory in the entire NetInfo hierarchy (or the subtree with domain as the
       root if domain is specified).   The -n option exempts local domains from the search.

       nifind uses a default two second connection timeout when contacting a domain.  The connection timeout can be overridden with the -t option.

OPTIONS

       -a     Search for directory in the entire NetInfo hierarchy.

       -n     Exempt local directories from the search.

       -p     Print directory contents.

       -t timeout
	      Specify an integer value as the connection timeout (in seconds).

       -v     Produce verbose output.

EXAMPLES

       % nifind /printers/inky
       /printers/inky found in /software, id = 202
       /printers/inky found in /, id = 357

       % nifind  -a /machines/mailhost /sales
       /machines/mailhost found in /sales, id = 234

       % nifind -v /users/uid=164
       /users/uid=164 not found in /sales/polaris
       /users/uid=164 not found in /sales
       /users/uid=164 found in /, id = 451

       % nifind -p /machines/mailhost
       /machines/mailhost found in /sales, id=171
       name: zippy mailhost
       ip_address: 192.42.172.5

       /machines/mailhost found in /, id = 350
       name:  zorba mailhost
       ip_address: 192.42.172.1

SEE ALSO

       netinfo(5)

AUTHOR

       Marc Majka, Apple Computer Inc.

BUGS

       nifind does not complain if domain is not an ancestor specified in a normal search.

Apple Computer, Inc.						  August 9, 1994							 NIFIND(1)