need an answer for this

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need an answer for this

Postby mukarram » Tue Nov 04, 2003 1:49 am

I am trying to telnet to host crap.onyx.edu but i get the message host not found.can anybody tell me all possible reasons for this.
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Postby zaeemarshad » Tue Nov 04, 2003 2:26 am

a ping to the host fails. seems like it is not online or has blocked incoming access. dunno.
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Re:

Postby LinuxFreaK » Tue Nov 04, 2003 2:33 am

Dear Mukarram,
Salam,

Sir, the problem is host can't resolve and possibally host does not exits in your DNS Record or in your ISP DNS Record. Sir, I had also trying to ?Resolve http://www.onyx.edu but its not Resolve may be its not Exits or may be Server is down. but i did Traceroute to verify weather its the DNS Problem or Host does not exits then its shows me

traceroute: unknown host crap.onyx.edu
traceroute: unknown host www.onyx.edu

Even when i tried to tace www.google.com its working fine for me :) take a look at the result:

traceroute to www.google.akadns.net (216.239.53.99), 30 hops max, 40 byte packets
1 FastEthernet6-0.civ-service1.Canberra.telstra.net (203.50.1.65) 0.503 ms 0.45 ms 0.359 ms
2 GigabitEthernet3-0.civ-core2.Canberra.telstra.net (203.50.10.129) 0.545 ms 0.476 ms 0.295 ms
3 GigabitEthernet2-2.dkn-core1.Canberra.telstra.net (203.50.6.126) 0.682 ms 0.677 ms 0.578 ms
4 Pos4-0.ken-core4.Sydney.telstra.net (203.50.6.121) 4.164 ms 3.937 ms 4.194 ms
5 10GigabitEthernet3-0.pad-core4.Sydney.telstra.net (203.50.6.86) 22.348 ms 31.043 ms 45.476 ms
6 GigabitEthernet0-1.syd-core01.Sydney.net.reach.com (203.50.13.246) 4.339 ms 4.385 ms 4.31 ms
7 i-13-0.sjc-core01.net.reach.com (202.84.143.17) 192.256 ms 192.302 ms 192.292 ms
8 i-3-1.sjc02.net.reach.com (202.84.251.58) 192.868 ms 192.702 ms 194.422 ms
9 eqixsj-google-gige.google.com (206.223.116.21) 180.458 ms 180.312 ms 180.314 ms
10 216.239.48.210 (216.239.48.210) 180.609 ms 180.653 ms 180.532 ms
11 216.239.48.74 (216.239.48.74) 181.246 ms 197.892 ms 181.178 ms
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
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20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *

And Finally i said the host does not exists :)

Best Regards.
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Re: need an answer for this

Postby lambda » Wed Nov 05, 2003 8:09 pm

either you couldn't look up the name or the name doesn't exist. in your case, it's the latter.

Code: Select all

% host -t any crap.onyx.edu
Host not found.
% host -t any onyx.edu
Host not found.
% host -t ns onyx.edu
Host not found.
%


looks like the domain doesn't exist, either.
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Postby farhanksa » Thu Nov 06, 2003 12:47 am

well problem may be in the past the domain was registered..as usually for year and the time had expired.............also it may not be hosted too now a days

as a side info lots of isp in pk now ha dblocked ICMP packets
so thats y u cant ping or tracert ..tracerout any more (:) security issues)
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Re:

Postby LinuxFreaK » Thu Nov 06, 2003 1:02 am

This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.

The EDUCAUSE Whois database is authoritative for the
.EDU domain.

A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.net

By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail.

You may use "%" as a wildcard in your search. For further
information regarding the use of this WHOIS server, please
type: help

--------------------------

No Match
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