[Info-vax] Changing SMTP server presented hostname in UCX

[Simon Clubley]

On 2014-09-08, Paul Sture <nospam at sture.ch> wrote:
> On 2014-09-08, Simon Clubley
><clubley at remove_me.eisner.decus.org-Earth.UFP> wrote:
>>
>> There's clearly something in the core components section I had missed
>> so please can you point me to the correct option in TCPIP$CONFIG to
>> directly change the hostname (not the domain) in the configuration
>> databases ? Thanks. (Of everything I've done with VMS, I've never
>> had to actually change the TCP/IP hostname of an existing production
>> VMS machine.)
>
> The hostname (i.e. node name) certainly used to be in the Interfaces
> section.
>

I'll have another look at the Interface section tomorrow thanks, but
I don't remember seeing any option to change just the hostname by
itself on an existing configuration.

It's also a strange place to put it as the various CLI set/show
communication options don't qualify the hostname by interface and
neither does the logical at the heart of this.

I also didn't spend as much time as I normally would researching this
due to the previously mentioned schedule pressure.

> I have an ancient (Jan-2001) example of the dialogue here.  Be warned,
> the various questions and answers within TCPIP$CONFIG *have* changed since
> then.
>
><http://openvms.sture.ch/tcpip_config_partial.txt>
>
> FWIW back at the turn of the century there was a set of circumstances
> where things could get out of step internally and the only way short of
> deleting the config and starting from scratch was to knobble the file
> containing the host names.  Because it was an indexed file you had
> to generate the FDL, edit, convert back to indexed.  The icing on the
> cake was that you needed to rename the result to version ;1 before
> restarting TCP/IP
>

This is exactly the kind of thing I am worrying about and exactly
the kind of thing I _really_ don't want to have to do on a production
system.

There's certainly an element of fields with values present which
cannot be set back to those values by the documented CLI interface.
Those values have clearly been imported during the UCX V4.x to V5
conversion on this system.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
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