From: ron jochems (jlddkf@hostcompare.com)
Date: Sat Apr 15 2000 - 21:17:28 EEST
Steve,
Thanx very much for your time and info , but before i continue i would like
to ask the following thing.....
Is my following statement correct :
Can the 'nslookup' program be used without DNS running ? Can he retrieve
names without DNS running ?
This question comes to my mind, because when i do 'nslookup' the output is
as follows :
nameserver : 0.0.0.0
So no real nameserver is running as expected, but if i red your mail
correctly, it may be possible to query names with nslookup although DNS
isn't running....
I want to stress out that i really don't want to use DNS, because it is
complicating things more as needed.
So , to make an short problem statement i can say that :
- i can ping my neighbour
- i can telnet/ftp my neighbour
- i can telnet to port 25 to my neighbour
but when sendmail receives an 'neigbour' adress, he is not able to
resolve/deliver.
I've added the 'DS pe1mvx.ampr.org' statement in /etc/sendmail.cf, no
difference however.
About documents... I've got an 'old' copy of the O'reilly Sendmail book.
This is for an old version of sendmail however..
Do you have some new 'online' documents, or did you purchase the
paper-copies ?
Another problem , which may be caused by the same problem:
When my neigbour wants to send smtp mail towards me, this mail is rejected
at my side, with the message : sender domain must resolve' .
I believe this has got something to do with new security features within
sendmail , but i believe i've done the right things to fix this :
/etc/mail/access
/etc/mail/relay-domains
withing these files i've addes the ip-adress and hostname of my neighbour...
I guess i'm overlooking a major issue here , but need a good
push-into-the-right-direction. Maybe you can help me again with some
hints .....
Thanx in advance,
Ron !
-----Original Message-----
From: Steve Fraser <dsspouto.fnoxiggxa@kve.cz>
To: ron jochems <bgma.nkibq@goos.com>
Date: Sunday, April 09, 2000 10:07 AM
Subject: Re: sendmail problem
>Hi Ron,
>You wrote:
>> I am even a little bit more confused about DNS. Should it be used or
not.?.
>>
>You do NOT need to run BIND - but you still need to resolve names somehow.
DNS
>is one way. /etc/hosts is another. If you cat /etc/resolve.conf, you'll see
>you'r systems search sequence. (BIND answers other systems' name lookup
>requests, but you dont need that). You can also use nslookup to check if
your
>name queries are being answered.
>
>> About your tips.
>> I did not yet changed the sendmail.cf, i've just stepped out of bed :)
>OK, but dont forget to restart sendmail when you do :-)
>
>> I;ve tried te 'telnet pe1mvx.ampr.org 25' and that is working just fine.
>Good, so all your IP and routing is OK, and so is DNS (lookups)
>
>
>>No
>> problem at all...I think it;s got something to do with a special
>> kind of hostname-resoloution which sendmail may be using.
>>
>I think sendmail uses the same lookup (gethostbyname) that other programs
use,
>so i dont believe that is correct.
>
>> I also got an reply from someone ho told my answer was right in the
>> Fucking-Manual ,
>Yeah, that's not really helpful if the manual is huge and you have clearly
>already tried there. "Which manual?" is also a valid question.
>
>> Maybe do you have some good documents .?.
>>
>Well, only the O'Reilly sendmail book. You can try www.sendmail.org, that
has
>some good stuff.
>
>Anyway, let me know how you get on.
>
>Cheers
>Steve
>
>
>
This archive was generated by hypermail 2b29 : Sat Apr 15 2000 - 21:33:14 EEST