The status (the NOERROR in this case) actually serves the purpose of saying that the connection to the DNS server is ok. I wanted a way to correctly split this ressource record so i could extract every field if i wanted to.... I could then use this to extract every DNS message NOERROR, NXDOMAIN, SERVFAIL, etc treat them accordingly.
What if i could keep my RS the same BUT use an empty line as a split delimiter?
That way i could have block[1] like this:
And so on and so on so i would know that if block[4] exist i have a failed update?
I have a file that contains the output of the ls -iR command, something like this:
./results:
2504641011 result_1410 2500957642 result_525
2504641012 result_1425 2500957643 result_540
./tests/1:
2500788755 1 2500788743 1000
./tests/2:
2500788759 3 2500788758 999
... (6 Replies)
I need to parse the following out put and determine if the USB is a DISK and whether or not it's External.
If an HBA line contains "USB" then does the next line contain
"DISK" and "External".
0:0,31,0: HBA : (aacraid,1) AAC SCSI
0,0,0: DISK : Adaptec ASR4800SAS Volu0001
... (6 Replies)
Hello all,
I am new to Unix.. i am trying to implement the TSIG in my BIND and using nsupdate to add record to bind..
this is what i did:
generate the TSIG key using : dnssec-keygen HMAC-MD5 -b 128 -n HOST mydns.com
forgot to mention: i am using FreeBSD.
I then edit the named.conf file... (0 Replies)
Hello all,
I am new to Unix.. i am trying to implement the TSIG in my BIND and using nsupdate to add record to bind..
this is what i did:
generate the TSIG key using : dnssec-keygen HMAC-MD5 -b 128 -n HOST mydns.com
forgot to mention: i am using FreeBSD.
I then edit the named.conf file... (0 Replies)
Hello all,
I am new to Unix.. i am trying to implement the TSIG in my BIND and using nsupdate to add record to bind..
this is what i did:
generate the TSIG key using : dnssec-keygen HMAC-MD5 -b 128 -n HOST mydns.com
forgot to mention: i am using FreeBSD.
I then edit the named.conf file... (1 Reply)
Hi fellows,
I need to define a notification for SSL certificate expiration.
My Command output is below: (this is the "Expiration Date")
Tue Mar 15 09:30:01 2012
So, at 15th Feb (1 month before the expiration), a notification has to be triggered by a script or sth else. How can i set an... (5 Replies)
i have a log file that contains something similar to this:
one two three four five six seven eight
nine ten eleven twelve thirteen fourteen
one two three four five six seven eight
nine ten eleven twelve thirteen fourteen
one two three four five six seven eight
nine ten eleven twelve... (3 Replies)
Hi ,
i am trying to set up an alert, when CPU usage (0.2%us in below output) is more than 40%
top | head | grep '^Cpu'
Cpu(s): 0.2%us, 0.2%sy, 0.0%ni, 99.1%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st
using CUT, i pulled the value 0.2 and assigned to CPU (variable)
CPU=$(expr `top | head -10... (5 Replies)
Discussion started by: Prateek007
5 Replies
LEARN ABOUT DEBIAN
net::dns::header
Net::DNS::Header(3pm) User Contributed Perl Documentation Net::DNS::Header(3pm)NAME
Net::DNS::Header - DNS packet header class
SYNOPSIS
"use Net::DNS::Header;"
DESCRIPTION
A "Net::DNS::Header" object represents the header portion of a DNS packet.
METHODS
new
$header = Net::DNS::Header->new;
"new" creates a header object appropriate for making a DNS query.
parse
($header, $offset) = Net::DNS::Header->parse($data);
Parses the header record at the start of a DNS packet. The argument is a reference to the packet data.
Returns a Net::DNS::Header object and the offset of the next location in the packet.
Parsing is aborted if the header object cannot be created (e.g., corrupt or insufficient data).
print
$header->print;
Prints the header record on the standard output.
string
print $header->string;
Returns a string representation of the header object.
id
print "query id = ", $header->id, "
";
$header->id(1234);
Gets or sets the query identification number.
qr
print "query response flag = ", $header->qr, "
";
$header->qr(0);
Gets or sets the query response flag.
opcode
print "query opcode = ", $header->opcode, "
";
$header->opcode("UPDATE");
Gets or sets the query opcode (the purpose of the query).
aa
print "answer is ", $header->aa ? "" : "non-", "authoritative
";
$header->aa(0);
Gets or sets the authoritative answer flag.
tc
print "packet is ", $header->tc ? "" : "not ", "truncated
";
$header->tc(0);
Gets or sets the truncated packet flag.
rd
print "recursion was ", $header->rd ? "" : "not ", "desired
";
$header->rd(0);
Gets or sets the recursion desired flag.
cd
print "checking was ", $header->cd ? "not" : "", "desired
";
$header->cd(0);
Gets or sets the checking disabled flag.
ra
print "recursion is ", $header->ra ? "" : "not ", "available
";
$header->ra(0);
Gets or sets the recursion available flag.
ad
print "The result has ", $header->ad ? "" : "not", "been verified
"
Relevant in DNSSEC context.
(The AD bit is only set on answers where signatures have been cryptographically verified or the server is authoritative for the data and is
allowed to set the bit by policy.)
rcode
print "query response code = ", $header->rcode, "
";
$header->rcode("SERVFAIL");
Gets or sets the query response code (the status of the query).
qdcount, zocount
print "# of question records: ", $header->qdcount, "
";
$header->qdcount(2);
Gets or sets the number of records in the question section of the packet. In dynamic update packets, this field is known as "zocount" and
refers to the number of RRs in the zone section.
ancount, prcount
print "# of answer records: ", $header->ancount, "
";
$header->ancount(5);
Gets or sets the number of records in the answer section of the packet. In dynamic update packets, this field is known as "prcount" and
refers to the number of RRs in the prerequisite section.
nscount, upcount
print "# of authority records: ", $header->nscount, "
";
$header->nscount(2);
Gets or sets the number of records in the authority section of the packet. In dynamic update packets, this field is known as "upcount" and
refers to the number of RRs in the update section.
arcount, adcount
print "# of additional records: ", $header->arcount, "
";
$header->arcount(3);
Gets or sets the number of records in the additional section of the packet. In dynamic update packets, this field is known as "adcount".
data
$hdata = $header->data;
Returns the header data in binary format, appropriate for use in a DNS query packet.
COPYRIGHT
Copyright (c) 1997-2002 Michael Fuhr.
Portions Copyright (c) 2002-2004 Chris Reinhardt.
Portions Copyright (c) 2007 Dick Franks.
All rights reserved. This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO perl(1), Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Update, Net::DNS::Question, Net::DNS::RR, RFC 1035 Section 4.1.1
perl v5.14.2 2009-12-30 Net::DNS::Header(3pm)