login slow dns

If this isn't exactly what you wanted, please try our Search (there's a LOT of techy and non-techy stuff here about Linux, Unix, Mac OS X and just computers in general!):

From - Sun Oct  8 09:15:02 2000
Path: news.randori.com!newsfeeder.randori.com!codeine.org!proxad.net!fr.clara.net!small.fr.clara.net!newsfeed.mesh.ad.jp!sjc-peer.news.verio.net!news.verio.net!iad-read.news.verio.net.POSTED!nosuchsite!bill
Newsgroups: comp.unix.sco.misc
From: bill@wjv.com (Bill Vermillion)
Subject: Re: Login prompt very slow
Reply-To: bv@wjv.com
Organization: W.J.Vermillion - Orlando / Winter Park
Message-ID: <G22yvD.1IoJ@wjv.com> 
References: <8rivo7$ufn$1@nnrp1.deja.com> <4.3.2.7.2.20001006074711.00ad7ad0@172.20.1.1> <4.3.2.7.2.20001006133928.00dcdf00@scogr1.cscc.maximus.com> <4.3.2.7.2.20001007164922.00db9e60@scogr1.cscc.maximus.com> 
Lines: 101
Date: Sat, 7 Oct 2000 22:09:13 GMT
NNTP-Posting-Host: 157.238.210.43
X-Complaints-To: abuse@verio.net
X-Trace: iad-read.news.verio.net 970959242 157.238.210.43 (Sat, 07 Oct 2000 22:54:02 GMT)
NNTP-Posting-Date: Sat, 07 Oct 2000 22:54:02 GMT
Xref: news.randori.com comp.unix.sco.misc:66890
X-Mozilla-Status: 8010
X-Mozilla-Status2: 00000000

In article <4.3.2.7.2.20001007164922.00db9e60@scogr1.cscc.maximus.com>,
Ken Wolff  <kenw@cscc.maximus.com> wrote:
>At 06:17 PM 10/6/00 +0000, Bill Vermillion wrote:

>>The problem is the machine you are trying to connect TO need to
>>look up the entry, and the target machine has no clue as to
>>/etc/hosts on the Unix side.

>The target machine was our OpenServer box with IP entries in
>/etc/hosts.

This thread has gone so long I was thinking it was the SCO system
trying to connect to other.  Sorry about that.


>>   I'm also assuming that your
>>target machine uses DNS using the ISP's DNS so that it will time
>>out trying to find that information.

>>The man is correct, the Unix system will look in the files in the
>>order in which you specify.   hostresorder local bind witll go
>>to /etc/hosts and then to DNS - ON THE UNIX MACHINE - not the
>>targe.

>I understand the search order, but the man page states "All
>databases will be tried until a match is found". That's the part I
>think is incorrect as it seems to try all databases regardless if a
>match is found.

I've never seen behaviour like that.  

>For us the point is moot. I eventually setup DNS running on our
>firewall and point the our OpenServer to that DNS server.

That's a good solution.

>In the past our OpenServer box had a 24x7 (probably mroe like
>23.75x7) dial up connection to our ISP and used our ISP's DNS
>servers. All 15 of our Win95 PCs were listed in /etc/hosts.
>resolv.conf was as follows:

>domain cscc.maximus.com
>hostresorder local bind
>search cscc.maximus.com
>nameserver 204.177.184.10
>nameserver 204.177.184.15

>Our OpenServer IP address was in \windows\hosts on each of the
>Win95 PCs.

That was not clear from before, but the slow login to the SCO is
because for some reason the SCO system isn't seeing the Win machine
in it's hosts file.   Since you've got it fixed there is no way to
tell, but I wonder if the Win machines had become confused.
Running  winipcfg  will let you know what the Win machine thinks it
has in way of addresses, gateways, etc.

>Whenever our dialup connection to our ISP (and their DNS servers)
>went down we encountered the login delay despite the fact ALL
>boxes in our building were listed in /etc/hosts. Once the dial
>up connection was reestablished (usually within a minute or two)
>everything was fine.

It almost seems the order was reversed - such as looking at the ISP
first.  It delayed trying to connect to the ISP until it timed out,
then just gave the login.   What is intereting is that the
SCO system is either 1) not recognizing something legitimate in
/etc/hosts, or 2) for some reason the Win machine is not
transmitting the correct information.

>I understand that I could have fixed this by running local DNS on
>the OpenServer box. However, with 1 Openserver box and 15 Win95
>boxes I though DNS was just a bit of overkill when /etc/hosts
>should work. That's why I've always looked at this as something
>that needed "fixing".

I use a Unix system as a gateway on a dial-up and run DNS on that
so that I cache often used outside addresses.

>(Sorry, originally posted directly back to Bill and forgot to change 
>'distribution' to 'scomsc').

I got the mail - and I decided I'd check here before replying
directly.  Based on what I've seen with Win machines connecting to
a network my first thought would be it's a problem on the Win side.

Up to about 9 months ago I was working a lot with a large dynamic
network - dynamic meaning it changed weekly not related to DHCP.
In a two day period 200-500 machines could be brought up for a
convention - and I saw more than my share of IP problems.  :-(
Win9X machines were the worst.  Some NT problems.  Once you learned
the quirks of the Apple systems they were OK.  But then someone
would bring in some 'interesting' equipment for sub-networks and
not all communicated transparently with the default modes the
manufacturers set up.

Glad it's working for you now.


-- 
Bill Vermillion -   bv @ wjv . com

Versatile Site Map Generator $59.00
A1 Sitemap Generator

Jump to Comments

Many of the products and books I review are things I purchased for my own use. Some were given to me specifically for the purpose of reviewing them. I resell or can earn commissions from the sale of some of these items. Links within these pages may be affiliate links that pay me for referring you to them. That's mostly insignificant amounts of money; whenever it is not I have made my relationship plain. I also may own stock in companies mentioned here. If you have any question, please do feel free to contact me.

Specific links that take you to pages that allow you to purchase the item I reviewed are very likely to pay me a commission. Many of the books I review were given to me by the publishers specifically for the purpose of writing a review. These gifts and referral fees do not affect my opinions; I often give bad reviews anyway.

We use Google third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address, or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.