Problem with bind - Printable Version

Problem with bind - Printable Version

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RE: Problem with bind - theprincy - 09-02-2009 01:37 AM

(09-02-2009 01:02 AM)sci2tech Wrote: Did you try to google about your error?!! I told you this has nothing to do with ispcp.
To solve read this: http://www.cyberciti.biz/faq/max-open-files-1024-smaller-than-max-sockets. It was first result. That will also solve
Quote:named[339]: network unreachable resolving 'bitsy.mit.edu/A/IN': 2001:503:a83e::2:30#53

Code:

ns10.bitrunners.com. [] (NO GLUE) [TTL=86400]
domain is not delegated to you. Contact your hoster / isp. Also for

Code:

You must have A records for all of your nameservers.
And read a little about DNS. Just in case you want to be a real admin. It so easy to blame other for your lack of knowledge.

I only said I did upgrade to 1.0.3 and I have this problem. If before the upgrade I had no problems after upgrade and started the first thing I thought was caused dall'aggiornamento made, and that's what I said and reported.
Also I do not blame anyone for lack of knowledge. rather they are the first to say that I know nothing.
The first problem I solved this morning immediately after giving perhaps a misconfiguration that have sprung all the problems later.

to become a good sysadmin, alone is not enough for all the help and suggestions, as well as reading a good book

not take it as an attack I recommend Smile

PS: The strange thing is that with the. com dns I have the same problem is solved correctly is there that do not understand.
should also give it to me with. com or wrong?

see ps2 Tongue

PS2 : in the previous post there is a mistake when I said I wanted to write

domain .com /net /etc

Domain NS records Nameserver records returned by the parent servers are:

ns3.bitrunners.com. ['151.1.153.22'] [TTL=172800]
ns4.bitrunners.com. ['151.1.153.22'] [TTL=172800]

really

Domain NS records Nameserver records returned by the parent servers are:

ns9.bitrunners.com. ['151.1.153.22'] [TTL=172800]
ns10.bitrunners.com. ['151.1.153.22'] [TTL=172800]

RE: Problem with bind - theprincy - 09-02-2009 02:56 AM

I checked the NS server on these sites

a) http://www.checkdns.net/quickcheck.aspx?domain=xxxxxx.xx
b) http://www.intodns.com/xxxxxx.xx
c) http://dnscheck.iis.se/
d) http://www.uptrends.com/aspx/free-dns-lookup-tools.aspx

a, d is all perfect
b, c is not nothing perfect

Who to believe? why this problem? how can this happen? if it is a server error in addition to files and named.conf named.conf.xxxxx and domain.ext.db where do I look?

RE: Problem with bind - kilburn - 09-02-2009 04:06 AM

In my own experience, intodns has been extremely good and reliable at diagnosing DNS issues. Which errors did it throw to you? Can you post the domain? I mean... domains should not be something ultra-private that you cannot reveal, don't you think? This would let us diagnose the issue much easier...

RE: Problem with bind - theprincy - 09-02-2009 05:01 AM

(09-02-2009 04:06 AM)kilburn Wrote: domains should not be something ultra-private that you cannot reveal, don't you think?

These examples use the same for dns,
francescovoci.com no problem which affect the display and functions of domain,
mauriziomariani.it the ns are not found d of course nothing works email and web
as you can see from the images .

RE: Problem with bind - kilburn - 09-02-2009 06:25 AM

There is one problem on the first domain, and two on the second one.

1st problem: bitrunners.com has a whole buch of nameservers, but some of them do not provide records for "ns3.bitrunners.com" and "ns4.bitrunners.com" (they are NOT synchronized and serving the same records as should be):

Code:

minibender:~ kilburn$ host -t NS bitrunners.com

bitrunners.com name server ns1.bitrunners.com.

bitrunners.com name server ns2.bitrunners.com.

bitrunners.com name server ns3.bitrunners.com.

bitrunners.com name server ns4.bitrunners.com.

bitrunners.com name server ns5.bitrunners.com.

bitrunners.com name server ns6.bitrunners.com.

bitrunners.com name server ns7.bitrunners.com.

bitrunners.com name server ns8.bitrunners.com.

bitrunners.com name server ns10.bitrunners.com.

bitrunners.com name server ns9.bitrunners.com.

minibender:~ kilburn$ host -t A ns4.bitrunners.com ns1.bitrunners.com

Using domain server:

Name: ns1.bitrunners.com

Address: 151.1.153.29#53

ns4.bitrunners.com has address 151.1.153.22

minibender:~ kilburn$ host -t A ns4.bitrunners.com ns3.bitrunners.com

Using domain server:

Name: ns3.bitrunners.com

Address: 151.1.153.22#53

Host ns4.bitrunners.com not found: 3(NXDOMAIN)

Thus, as the cilent randomly chooses one of the nameservers and asks to him, some clients will get to "correct" servers (such as ns1.bitrunners.com) and get a proper answer, while others hit a "bad" server (such as ns3.bitrunners.com) and get a host not found error.

This problem is there for both domains, but...

The first domain has IP addresses associated to the nameservers directly on the registry info. This is good, and you should do the same with the second one Wink

RE: Problem with bind - theprincy - 09-02-2009 07:27 AM

Quote:The first domain has IP addresses associated to the nameservers directly on the registry info. This is good, and you should do the same with the second one Wink

all the ip of the machine are fees associated with the nameserver, for example ns3 and ns4 to ip .22, NS5 n6 to IP 27. that's what you mean?

RE: Problem with bind - theprincy - 09-02-2009 07:30 PM

I then assigned each car a different domain for managing the DNS.
instance on the machine with IP 151.1.153.22 I gave revhost.info, so now I ns1.revhost.info and ns2.revhost.info.
running the command that you did get this

robert @ linux-BWWR: ~> host-t revhost.info NS
;; Connection timed out; no servers could be reached
robert @ linux-BWWR: ~> host-t A ns1.revhost.info ns2.revhost.info
Using domain server:
Name: ns2.revhost.info
Address: 151.1.153.22 # 53
Aliases:
ns1.revhost.info has address 151.1.153.22

why do you think comes out error
;; Connection timed out; no servers could be reached?

what you do not understand why check to a new DNS domain works for 10 minutes and then give problems.

RE: Problem with bind - kilburn - 09-02-2009 08:35 PM

Quote:robert @ linux-BWWR: ~> host-t revhost.info NS

This is not correctly written. The syntax is (type is optional, defaults to "A" and "server_to_contact" is also optional, defaults to whatever server you have configured for this mahcine):

Code:

host [-t <type_of_record>] <hostname> [server_to_contact]

Therefore, you asked for the host "NS", record of type "revhost.info", to your usual DNS server. The corrected command outputs results as expected:

Code:

Bender:~ marc$ host -t NS revhost.info

revhost.info name server ns2.revhost.info.

revhost.info name server ns1.revhost.info.

Please, read some "introduction to how the dns system works" tutorial or something, becuse you're missing essential concepts necessary to debug this kind of problems.

RE: Problem with bind - theprincy - 09-02-2009 10:09 PM

I downloaded several guides and I'm trying to figure out where is the problem Smile

when the solution will solve the problem poster in case anyone has the same problem in my future

RE: Problem with bind - theprincy - 09-02-2009 11:36 PM

i solved then I modified the file revhost.info.db in this way (is the domain that acts as DNS Management)
....
;modifica test
ns1.revhost.info. IN A 151.1.153.22
ns2.revhost.info. IN A 151.1.153.22
@ IN A 151.1.153.22
http://www.revhost.info IN A 151.1.153.22
....
.....
;ns1. IN A 151.1.153.22
;ns2. IN A 151.1.153.22
; CNAME for VHCS compatibility
;ns IN CNAME ns1
; CNAME for mail transfer
; fine modifica test