09-28-2010
Set up Sendmail as sending only server
I have set up where my primary fibre optical WAN access does not have any sending SMTP service but my fall-back ADSL service does. However, with most Internet Service Providers, the SMTP service access is "locked" to the IP addresses that the service knows about. Therefore I can not send SMTP requests to my ADSL service while using the fibre optical. I have then installed Sendmail on a CentOS 5.5 64 bit so as to allow sending SMTP request no matter what service is active.
My new problem is that I can not sending SMTP requests to email address on my own domain (receiving email server not in my offices!)
How can I configure Sendmail server to be a sending SMTP server only.
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LEARN ABOUT SUNOS
in.tnamed
in.tnamed(1M) System Administration Commands in.tnamed(1M)
NAME
in.tnamed, tnamed - DARPA trivial name server
SYNOPSIS
/usr/sbin/in.tnamed [-v]
DESCRIPTION
in.tnamed is a server that supports the DARPA Name Server Protocol. The name server operates at the port indicated in the "name" service
description (see services(4)), and is invoked by inetd(1M) when a request is made to the name server.
OPTIONS
-v Invoke the daemon in verbose mode.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWtnamd |
+-----------------------------+-----------------------------+
SEE ALSO
svcs(1), uucp(1C), inetadm(1M), inetd(1M), svcadm(1M), services(4), attributes(5), smf(5)
Postel, Jon, Internet Name Server, IEN 116, SRI International, Menlo Park, California, August 1979.
NOTES
The protocol implemented by this program is obsolete. Its use should be phased out in favor of the Internet Domain Name Service (DNS) pro-
tocol.
The in.tnamed service is managed by the service management facility, smf(5), under the service identifier:
svc:/network/tname
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). Responsibil-
ity for initiating and restarting this service is delegated to inetd(1M). Use inetadm(1M) to make configuration changes and to view config-
uration information for this service. The service's status can be queried using the svcs(1) command.
SunOS 5.10 11 Aug 2004 in.tnamed(1M)