Yes, then DNS queries go to some external DNS server. You should recognize if the DNS server address from ipconfig /all belongs to your organization or not.
I have DNS Server running in solaris 10 .
There is website called exaple.com ,whcih was hosted in this dns server with IP 1.2.3.4 ,now we deleted the DNS entry of that website from our DNS Server (db.exmaple.com is deleted from named.conf ) and it is hosted with some other name server with IP... (1 Reply)
We have a DNS server that is only using as a cache DNS of parent server. I wonder where it the cache file that it created from parent DNS?
Please tell me where will be the cache file? (0 Replies)
Hi All,
could any one point out any open source test-suites for "File cache" testing and as well as performance test suites for the same. Currently my system is up with Linux/ext4.
Regards
Manish (0 Replies)
Hi all
I saw in Microsoft web site www.SysInternals.com a tool called CoreInfo from able to print out on screen the size of the Data and Instruction caches of your processor, the Locigal to Physical Processor mapping, the number of the CPU sockets. etc..
Do you know if in Linux is available a... (2 Replies)
Hi Chaps and Chappettes,
I've had a short period of time recently to learn and implement DNS cache-only in our organisation. Trouble is, according to my tcpdumps, the amount of traffic on port 53 has increased. This is of course the exact opposit of the desired effect. Would y'all mind looking... (2 Replies)
Hi again guys,
It seems this is a global thing affecting all the DNS bind versions prior to July 28 2008. I have my work cut out for me very soon, I see at least a handful of servers in my list that either need to patching or upgrading.
How many of you guys are affected? Anybody successfully... (4 Replies)
hi,
What is the difference between UBC cache and Metadata cache ? where can i find UBC cache Hits and Metadata cache Hits in hp-ux?
Advanced thanx for the help. (2 Replies)
dns(n) Tnm Tcl Extension dns(n)
__________________________________________________________________________________________________________________________________________________NAME
dns - Query the Domain Name System of the Internet.
_________________________________________________________________DESCRIPTION
The dns command allows to query the Internet Domain Name System (DNS) (RFC 1034, RFC 1035, RFC 974, RFC 1912) for host information. The
main purpose of this command is to convert host names into IP addresses and vice versa. The dns command also allows to retrieve host infor-
mation records as well as mail exchanger records.
DNS COMMAND
dns [options]
Invoking the dns command with options but without any command arguments allows to retrieve and change the default values. See the
description of supported options below. Default values are bound to a Tcl interpreter which allows to have multiple Tcl interpreter
with different defaults.
dns [options] address host
The dns address command sends a query to retrieve the address record for the specified host. The command returns the list of IP
addresses for the given host name.
dns [options] name address
The dns name command sends a query to retrieve the domain name pointer record. A pointer record maps an IP address to a fully quali-
fied domain name (FQDN). The command returns the fully qualified domain name for the given IP address.
dns [options] hinfo name
The dns hinfo command sends a query to retrieve the host information record. The command returns a list containing two elements. The
first element describes the hardware type and the second element the operating system.
dns [options] mx name
The dns mx command sends a query to retrieve the mail exchanger record. The command returns a list of mail exchanger records if name
is a domain name for which one or more MX records exist. Each element of this list contains a full qualified domain name (FQDN) and
its priority.
dns [options] soa name
The dns soa command sends a query to retrieve the start of authority record for a DNS domain. The command returns the name of the
authoritative DNS server of the DNS domain name.
DNS OPTIONS -server server
The -server option defines the DNS server which will be used to process the request. The default value is the default DNS server
configured on the local system.
-timeout time
The -timeout option defines the time the dns command will wait for a response. The time is defined in seconds with a default of 2
seconds.
-retries number
The -retries option defines how many times a request is retransmitted during the timeout interval. The default number of retries is
2. Please note, that many resolver double the last timeout after every retry.
SEE ALSO scotty(1), Tnm(n), Tcl(n)
AUTHORS
Erik Schoenfelder <schoenfr@gaertner.de>
Juergen Schoenwaelder <schoenw@cs.utwente.nl>
Tnm dns(n)