I have resubmitted this issue I am having as the my last post was moved to programming as the issue appeared to be specific to java but on further investigation this is not the case.
The issues also arises when running the host command and appears to be either a problem with the named caching server running on Centos or the response is mangle in someway for the url webservices.securetrading.net.
The problem arrises as soon as the a lookup up is made for ipv6 AAAA record.
It only occurs with the above mentioned URL.
I have installed a separate instance of centos running named caching server on a virtualbox host running under OSX on my home network and can confirm the issue is still arising. So it's not limited to our business network.
I can also confirm the issue also arrises when changing to different nameservers ie when using google public nameserver 8.8.8.8
After a period of time the nslookup starts to resolve correctly but as soon as I execute a host command or a java program that requires a lookup to the ipv6 AAAA the issue returns.
* did you capture network while process nslookup_2?
for example
Code:
# tcpdump port 53 -s0 -nn -w nslookup_2.pcap
and you can check packet traffic on wireshark (or tshark) or similiar other progs
* what is messages/logs from caching-server d(what is status caching-nameserver or named or ..) when received this error?
* did you look to your cached server confs files may releated about this issue (any periods or ipv6)?
* check your firewall settings if has?
Hi guys. Ok so let me lay out my configs. I can do a NSlookup from client to server BUT NOT a reverse lookup.
DNS server: Optimus.jaydomain.com
IP : 192.168.1.50
DNS Client: Megatron.jaydomain.com
IP : 192.168.1.60
On Sever:
# cat /etc/named.conf
//
// named.conf
//
// Provided... (4 Replies)
Hi frnds
I recently configured Squid 2.5 stable version on my redhat machine.Caches are storing in my disk (/var/spool/squid) but my access.log file always shows tcp_miss for every site i access as well as store.log file shows release on every action.
some of the records of my... (6 Replies)
I came back to my solaris 10 system after a week of being gone and xterm no longer work. I checked into it and the system doesn't reverse lookup my client system. There is a manual entry for my system in the /etc/hosts file and a forward lookup works fine, but I still can't get reverse lookup. Any... (0 Replies)
Hello,
I'm a UNIX SysAdmin at a large webhosting company and we have a vendor that provides a service which involves the ftp'ing of files from their servers to ours. They initiate FTP using a perl script with NET::FTP.
When they try to transfer files (and delete files over ftp), there is... (3 Replies)
Guys,
I am new to FreeBSD. I have this weird issue where when i issue the command "/etc/rc.d/named restart" i get --> command not found.
I am running BIND 9.6.-ESV-R3 on FreeBSD 8.2
I have added named_enable="YES" in rc.conf as per manual
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I spent hours trying to create a system where the name server returns a value of 192.168.100.5 locally, but 209.137.nnn.nnn for requests outside of the firewall.
If I run "nslookup mail.mydomain.com" from a machine inside the firewall, the 192.168 number is returned, but if I do "nslookup... (3 Replies)
Hi Experts,
I have a virtual server of SUSE Linux Enterprise Server 10 (x86_64). I am having strange issue of Naming services. Every 1 or 2 hours, named service stops working on this server and then I have to start it from "/etc/init./named start"
I am not getting clue, where should I start... (0 Replies)
Sorry to bug you, but my sed is failing me,
I have a file auto generated from abinitio, it has a string of chars ending with a line break, and then it has added a ^A character, I can remove this is vi by using the following %s/^A//g (where ^A is ctrl v and control A), however when I try to sed... (1 Reply)
i'm setting up a solaris 9 box to be my home network's DNS server. actually it's up and running, but it's set as a caching-only name server.
can i set it up to be the primary name server? what are the advantages if i can set it up to be a primary name server vs. a caching only name server? (3 Replies)
i've gone through the sun docs as well as a Solaris Network Admin book.
while the book is fair, it lacks detail and i'm sure there are things it's missing on getting a caching only name server working.
as for the sun docs... what it has is really miserable. i can't make anything out of it.
... (4 Replies)
