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SCO Unix Refusing acces to port 25 from some ip address

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Marcus Adams

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Apr 18, 1998, 3:00:00 AM4/18/98
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Hi

I've got a sco 3.2v4.2 box running mmdf that collects out mail
this has been running fine until a new machine to send mail down to us was
brought on-line

if this machine trys to connect on port 25 it gets connection refused
if other machines on the same network try and connect on port 25, they can
connect and send mail

if the machine connects on any other port i.e 23 it connects and gets a
login fine

Speaking to Deamon it's a configuration issue on my sco box and i've proved
that by taking my mailserver of the network and plugging in a pc to it with
the same ip address of the punt-3 the machine the cant connect.

However i'm not that hot on mmdf or tcp on sco and havnt got the first idea
where to look to find whats stopping
this ip address from connecting.

Any Suggestions would be greatfully recived

NB if you do email with some ideas could you please use the address of
mad...@fat-cat.demon.o.uk (my home account) as until this is sorted my
office is without mail

thanks

Marcus

Mad...@lynxauto.co.uk

Barry Walsh

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Apr 19, 1998, 3:00:00 AM4/19/98
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I don't know about SCO Unix 3.2v4.2, but Openserver 5 (3.2v5.0) did have
problems like "connection refused" with MMDF (I think these were connected to
DNS as well).

Your best bet is to peruse SCO's website (www.sco.com) and view their support
database (I think its www.sco.com/Support/ssl.html from memory).

--
I3arry \/\/alsh b...@ubix.demon.co.uk www.ubix.demon.co.uk

Simon Guerrero

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Apr 23, 1998, 3:00:00 AM4/23/98
to mad...@fat-cat.demon.co.uk

Barry Walsh wrote: I don't know about SCO Unix 3.2v4.2, but Openserver 5 (3.2v5.0)
did have

> problems like "connection refused" with MMDF (I think these were connected to
> DNS as well).

I recall that the original release of OSR5 had mmdf problems regarding needing to
use fully qualified host names in the mmdf configuration files.

like the difference between 'hamster.blobby.co.uk' and 'hamster'

but I don't know of similar in previous versions. Check out mmdftailor in the man
pages.

Simon
--
Simon Guerrero, Project Management/Development Engineer
Santa Cruz Operation, Watford, UK
Tel. +44 (0)1923 813775
sim...@sco.com

Kevin Smith

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Apr 26, 1998, 3:00:00 AM4/26/98
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In article <353F41EF...@sco.com> Simon Guerrero <sim...@sco.com> writes:
>
>
>
>Barry Walsh wrote: I don't know about SCO Unix 3.2v4.2, but Openserver 5 (3.2v5.0)
>did have
>
>> problems like "connection refused" with MMDF (I think these were connected to
>> DNS as well).
>
>I recall that the original release of OSR5 had mmdf problems regarding needing to
>use fully qualified host names in the mmdf configuration files.
>
>like the difference between 'hamster.blobby.co.uk' and 'hamster'
>
>but I don't know of similar in previous versions. Check out mmdftailor in the man
>pages.

If you are not running DNS, the host from which the connection is made
must be listed in ~mmdf/table/smtp.chn. I'm not sure about the distinction
between FQDN's and node names. Try both.
--
Do two rights make | Kevin Smith, ShadeTree Software, Philadelpha, PA, USA
a libertarian | 001-215-487-3811 shady.com,kevin bbs.cpcn.com,sysop

Tim Burton

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May 6, 1998, 3:00:00 AM5/6/98
to

In article <6hvk10$r...@shady.shady.com>, kbs=cu...@shady.com says...

>
>In article <353F41EF...@sco.com> Simon Guerrero <sim...@sco.com> writes:
>>
>>
>>
>>Barry Walsh wrote: I don't know about SCO Unix 3.2v4.2, but Openserver 5
(3.2v5.0)
>>did have
>>
>>> problems like "connection refused" with MMDF (I think these were connected
to
>>> DNS as well).
>>
>>I recall that the original release of OSR5 had mmdf problems regarding
needing to
>>use fully qualified host names in the mmdf configuration files.
>>
>>like the difference between 'hamster.blobby.co.uk' and 'hamster'
>>
>>but I don't know of similar in previous versions. Check out mmdftailor in the
man
>>pages.
>
>If you are not running DNS, the host from which the connection is made
>must be listed in ~mmdf/table/smtp.chn. I'm not sure about the distinction
>between FQDN's and node names. Try both.

I am also having problems with 3.2v4.2 I have now had to enter IP addresses for
punt-1a/b and punt-2a/b/c/d to the smtp.chn in order to receive mail on three
servers :-(

OSR 5.0.0 is the only OSR5 version to have a problem, 5.0.2 and 5.0.4 are OK as
far as I know. i have 4 OSR5.0.0 servers and 13 others (5.0.2 and 5.0.4) which
are OK...EXCEPT FOR RECEIVING MAIL FROM PUNT2!!!!

Does anyone know whether configuring DNS means that hosts do not have to be
entered in smtp.chn in 3.2v4.2 ?

Regards

Tim

_________________________________________________________________________
Tim Burton <t...@forward-comp.co.uk> Forward Computers Ltd, Nottingham, UK
The views expressed are not necessarily those of my employer!
_________________________________________________________________________


Kevin Smith

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May 9, 1998, 3:00:00 AM5/9/98
to

Configuring DNS means you don't have to put names in smtp.chn.

If you are not running DNS the host names have to be in /etc/hosts
and in smtp.chn and the name in smtp.chn has to match the second column
(first name) in /etc/hosts.

This is true in 3.2v4.x and OSR5.0.x.

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