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June 2002, Week 1

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Subject:
Re: DNS & Reslvcnf
From:
Gerhard Roets <[log in to unmask]>
Reply To:
Gerhard Roets <[log in to unmask]>
Date:
Thu, 6 Jun 2002 13:57:11 +0200
Content-Type:
text/plain
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text/plain (65 lines) 
Hi Andrew,

Refer to the attached snippet. Those files aught to exist on your system. Now the moment you created a real resolv.conf in /etc. It overrides the reslvcnf for certain functions. Due to this inconsistency I do think you are getting problems. I recommend you copy resolv.conf to resolv.conf.old and ad its contents over reslvcnf.net.sys. Remove and recreate the links as needed. This aught to solve your problem.

<snippet of ll aka ls -l in ./etc>
lrwxrwxrwx   1 MANAGER.SYS       0             17 Jun  4 10:51 protocol -> /SYS/NET/PROTOCOL
lrwxrwxrwx   1 MANAGER.SYS       0             17 Jun  4 10:51 resolv.conf -> /SYS/NET/RESLVCNF
lrwxrwxrwx   1 MANAGER.SYS       0             17 Jun  4 10:51 services -> /SYS/NET/SERVICES
</snippet>


Do not hesitate to contact me if you need any further help. I also recommend you to look at the MPE Internet services manual.

Regards

Gerhard Roets
HP 3000 Support
Neil Harvey & Associates (Pty) Ltd.
HP 3000 Select Systems & Solutions Reseller
PO Box 24, Newlands, 7725, South Africa
Boundary Terraces, 1 Mariendahl Lane, Newlands, Cape Town
Direct Phone: +27-21-670-9233     Direct Fax: +27-21-670-9333
Mobile: +27-82-444-4889 


-----Original Message-----
From: John Burke [mailto:[log in to unmask]]
Sent: 05 June 2002 17:26
To: [log in to unmask]
Subject: Re: [HP3000-L] DNS & Reslvcnf


> From: Andrew Cartledge [mailto:[log in to unmask]]
>
> Further to previous mail.
>
> Can anyone explain why the existance of a RESLVCNF file would
> cause the
> HOST file to stop being referenced.
>
> When the HOST file exists on its own I can, via NAMEADDR,
> resolve a domain
> name eg. webserver.test.com, to an IP address.
>
> This enables my NETIPC application to open and communicate with the
> application at the other end of my wet piece of string.
>
> When I introduce RESLVCNF I can now resolve www names via
> NSLOOKUP but my
> NETIPC application falls over. In addition my NAMEADDR lookup
> by name fails
> in NETTOOL. Remove RESLVECNF and NAMEADDR works again.
>
> Odd!

Odd, perhaps, but that is the way MPE has worked for a very long time. Use
of DNS overrides any host file entries. What you need is the NSSWITCH patch
(search the archives for NSSWITCH for a complete explanation).

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