10 More Discussions You Might Find Interesting
1. What is on Your Mind?
Hi,
I not sure if this is the right place to ask this question and if I'm wrong I apologize.
I'm a systems administrator and have about 5 years of experience. I have worked on
Solaris
HP-UX
*linux
Visualization ( VMWare )
And I'm comfortable with shell and Perl.
Of late,... (0 Replies)
Discussion started by: maverick_here
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2. AIX
Dear All
i am working on windows plattform and i am interested in Aix so i have done IBM Aix certification, can you please suggest Aix filed is good for my carrier,currently i am working as Desktop admin
edit by bakunin: please understand that the question you raised has nothing to do with the... (1 Reply)
Discussion started by: manzur13
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3. UNIX for Advanced & Expert Users
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The bad part is , shell scripting is all i know , so the kind of jobs i am getting is mostly production... (2 Replies)
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4. AIX
Hi all,
I'm a Solaris/linux sysadmin with a good general UNIX skills and with a little tiny background on AIX with no exposure to IBM's hardware ( just reading ) , but i think i can cope with it .
UNIX jobs nowadays are rare here ( i mean hp-ux , solaris , aix ) not linux specially after the... (6 Replies)
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5. Solaris
I'm looking for career advice here.
I've been working as a support engineer for Sun partners for 2 years now, and I worked with a lot of servers, tape libraries, and SAN storage. I have also done a lot of server installations and gone to a lot of trainings.
Now, I'm offered to do Solaris... (13 Replies)
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6. What is on Your Mind?
Hi all,
I need a career Advice.
About myself -- I have 2 years of work experience as a System Administrator (Linux and Solaris). I am Sun Certified System Administrator on Solaris 10.0 currently working in a MNC.
As for career growth, I am doing 3 year MBA course from distance learning,... (4 Replies)
Discussion started by: vikas027
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7. What is on Your Mind?
Hello, I am currently a second year university student studying amongst other subjects Unix.
I am interested in pursuing Unix into a future career, specifically as a network administrator.
I was wondering if you can provide information on how to pursue a career in Unix, i.e. what general paths... (17 Replies)
Discussion started by: -CurrentStudent
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8. What is on Your Mind?
I am a junior unix sys admin (Tru64) I have been in this job for 9 months and I am quite worried.
When I first got the job I was delighted as I was finally in a job where I could have the chance to be a specialist in a field rather than being a general support guy (i graduated from uni and got... (5 Replies)
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9. Shell Programming and Scripting
I am new to scripting and I need some direction on which language to learn.
Can you please advice and which skill is very marketable career wise.Thanks in advance. (1 Reply)
Discussion started by: etcman
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10. UNIX for Dummies Questions & Answers
Dear All,
I have finished my MS in chemical engineering from US university and presetly on OPT work permit.
I do not have software background.
I have received call from consultant company.
They are offering me AIX UNIX training for four weeks and find me a job.
My question is how difficuilt... (5 Replies)
Discussion started by: saarth_desh
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Net::DNS::RR::OPT(3) User Contributed Perl Documentation Net::DNS::RR::OPT(3)
NAME
Net::DNS::RR::OPT - DNS OPT resource record
SYNOPSIS
use Net::DNS;
$opt = new Net::DNS::RR(
type => "OPT",
flags => 0x8000, # extended flags
rcode => 0, # extended RCODE
size => 1280, # UDP payload size
);
DESCRIPTION
EDNS OPT pseudo resource record.
The OPT record supports EDNS protocol extensions and is not intended to be created, accessed or modified directly by user applications.
All access to EDNS features is performed indirectly by operations on the packet header. The underlying mechanism is entirely hidden from
the user.
METHODS
The available methods are those inherited from the base class augmented by the type-specific methods defined in this package.
Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or
other unpredictable behaviour.
version
$version = $rr->version;
$rr->version( $version );
The version of EDNS used by this OPT record.
size
$size = $packet->edns->size;
$more = $packet->edns->size(1280);
size() advertises the maximum size (octets) of UDP packet that can be reassembled in the network stack of the originating host.
rcode
$extended_rcode = $packet->header->rcode;
$incomplete_rcode = $packet->edns->rcode;
The 12 bit extended RCODE. The most significant 8 bits reside in the OPT record. The least significant 4 bits can only be obtained from
the packet header.
flags
$edns_flags = $packet->edns->flags;
$do = $packet->header->do;
$packet->header->do(1);
16 bit field containing EDNS extended header flags.
Options
@option = $packet->edns->options;
$octets = $packet->edns->option($option_code);
$packet->edns->option( NSID => 'value' );
$packet->edns->option( 3 => 'value' );
When called in a list context, options() returns a list of option codes found in the OPT record.
When called with a single argument, option() returns the octet string corresponding to the specified option. The function value is
undefined if the specified option is absent.
Options can be changed by providing an argument list containing one or more (name => value) pairs to be added or modified. The effect of
such changes is cumulative. An option is deleted if the value is undefined.
COPYRIGHT
Copyright (c)2001,2002 RIPE NCC. Author Olaf M. Kolkman.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in
supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the
software without specific prior written permission.
THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO
EVENT SHALL AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
Portions Copyright (c)2012 Dick Franks.
Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.
SEE ALSO
perl, Net::DNS, Net::DNS::RR, RFC2671 Section 4
perl v5.18.2 2014-01-16 Net::DNS::RR::OPT(3)