[comp.unix.aux] MacTCP without DNS support?

lengge@chx400.switch.ch (Thomas Lenggenhager) (01/07/91)

In article <1991Jan4.220228.4505@athena.mit.edu> hbh@athena.mit.edu (Heidi Hammel) writes:
>I just installed A/UX 2.0 on my Mac IIci.  I have been running NCSA 
>Telnet 2.3 on my Mac via an ethertalk card and thinwire connections.  
>But it won't run under A/UX.  Says it's not 32-bit clean.  
>I tried relogging in under 24-bit (just like it says in the TFM for 
>running non-32-bit-clean programs). No luck.
>
>It _acts_ like its working, but just can't locate the machine.  In the 
>control planel under MacTCP, when I look at the IP addresses and defaults 
>WITH A/UX,  they are all O's.  WITHOUT A/UX, they are set to the correct 
>IP address and defaults.  I cannot change them under A/UX - says they 
>are protected.
>
>Any clues?  Something silly?  I'm an experienced unix _user_ (read: _not_ 
>a system hacker) but very new to the Mac world.  Thanks for any help.
>--
>------   Heidi B. Hammel      (hbh@athena.mit.edu)     MIT 54-316
>--       Department of Earth, Atmospheric, and Planetary Sciences

The first problem you describe is just the warning documented somewhere in
the manual. You have to change a bit with the ResEdit to get it to
disappear.

The second problem I experienced with TCP/Connect II from InterCon as well.
It seems to me that the MacTCP under A/UX 2.0 doesn't support the DNS name to
address lookup. If you try to connect via the IP number it works perfectly.
Connecting by domain name always fails!

Question to Apple:
Why isn't this documented in the manual? Or is it just a bug and not a
feature?

===============================================================================
     Thomas Lenggenhager, SWITCH, ETH-Zentrum, CH-8092 Zurich, Switzerland
          INET: lenggenhager@switch.ch       | Tel: +41-1-261 8178
          UUCP: ..!mcsun!chx400!lenggenhager | Fax: +41-1-261 8133
         X.400: S=lenggenhager;O=switch;P=switch;A=arcom;C=CH
-- 
===============================================================================
     Thomas Lenggenhager, SWITCH, ETH-Zentrum, CH-8092 Zurich, Switzerland
          INET: lenggenhager@switch.ch       | Tel: +41-1-261 8178
          UUCP: ..!mcsun!chx400!lenggenhager | Fax: +41-1-261 8133

urlichs@smurf.sub.org (Matthias Urlichs) (01/07/91)

In comp.unix.aux, article <1991Jan6.213329.8182@chx400.switch.ch>,
  lengge@chx400.switch.ch (Thomas Lenggenhager) writes:
< 
< It seems to me that the MacTCP under A/UX 2.0 doesn't support the DNS name to
< address lookup. If you try to connect via the IP number it works perfectly.
< Connecting by domain name always fails!
< 
< Question to Apple:
< Why isn't this documented in the manual? Or is it just a bug and not a
< feature?
< 
It's a bug. More specifically, it's a bug in NCSA Telnet.

NCSA Telnet tries to do its own name lookup by opening a port and talking
to a "real" name server out there somewhere.
Unfortunately, this clashes with the A/UX system, which has its own UNIXish
name server/resolver code (which MacTCP does use).

Any code that uses MacTCPs built-in name lookup does work.
(Keep in mind that the MacTCP included in A/UX is a special version.)

NB: If you really must have a long signature, please don't include it twice. ;-)
-- 
Matthias Urlichs -- urlichs@smurf.sub.org -- urlichs@smurf.ira.uka.de     /(o\
Humboldtstrasse 7 - 7500 Karlsruhe 1 - FRG -- +49+721+621127(0700-2330)   \o)/