Re: Digging to the final IP
On Oct 21, 2014, at 4:00 PM, Evan Hunt wrote:
On Tue, Oct 21, 2014 at 12:07:15PM -0700, Warren Kumari wrote:
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Because, not everyone is as stunningly brilliant as you?
To a non-zero population of this list the above looks like line-
noise...
Could be worse, could be perl...
But if perl were acceptable,
perl -e 'printf %vd\n, (gethostbyname example.com)[4]'
John
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Re: Digging to the final IP
It's interesting to see the discussion about trying to turn dig into something it isn't. :) It's a really good DNS diagnostic tool, but if you just want to get the answer for a query, host does the job quite well, with a lot less fuss. Doug ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On 10/21/14 8:31 PM, Frank Bulk wrote: Dave, Thanks for the input, but what I was looking for was a dig command that returns the IP(s) or a fail. It looks like the host command is the right solution in this case, not dig. Yep. :) You can check the return value of the call to get your fail as well. For example: $ host ajklasdfjklasd.com ; echo $? Host ajklasdfjklasd.com not found: 3(NXDOMAIN) 1 hth, Doug ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
Anytime you see 'grep' and 'cut' used together, they can usually be
shortened to just 'awk', which requires starting one less process. And if
this case it splits fields the way a users sees them, so the same code
works in both cases:
$ dig +noall +answer home.kreme.com in a | awk '/[\t ]A[\t ]/ {print $NF}'
23.24.150.141
$ dig +noall +answer dave.knig.ht in a | awk '/[\t ]A[\t ]/ {print $NF}'
216.235.14.46
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Information and Technology Services (ITS)
rharo...@umich.edu
734-647-6524 desk
On Wed, Oct 22, 2014 at 6:58 PM, LuKreme krem...@kreme.com wrote:
On 21 Oct 2014, at 22:46 , Jim Young jyo...@gsu.edu wrote:
On 10/22/14 12:08 AM, LuKreme krem...@kreme.com wrote:
On 21 Oct 2014, at 19:20 , Dave Knight d...@knig.ht wrote:
$ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6
216.235.14.46
Interesting. This works for me:
dig +noall +answer home.kreme.com in a | egrep '\tA' | cut -f5
but on your example, it requires -f6
And yet, the outputs appear to have the same number of fields.
$ dig +noall +answer www.kreme.com in a
www.kreme.com. 21139 IN CNAME cerebus.kreme.com.
cerebus.kreme.com. 21141 IN A 23.24.150.141
$ dig +noall +answer dave.knig.ht in a
dave.knig.ht.13916 IN CNAME sb.sanxion.org.
sb.sanxion.org. 222 IN A 216.235.14.46
Very odd.
Subtle formatting difference for human consumption. There are a variable
number of ASCII TABs inserted to visually align fields.
Yeah, I saw the extra space after 222, but did not check for a second tab
following sb.sanxion.org.
This is where output generated for human consumption can be tricky to
parse.
That’s why I like dig +short
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Re: Digging to the final IP
In article mailman.1128.1414072988.26362.bind-us...@lists.isc.org,
Bob Harold rharo...@umich.edu wrote:
Anytime you see 'grep' and 'cut' used together, they can usually be
shortened to just 'awk', which requires starting one less process. And if
this case it splits fields the way a users sees them, so the same code
works in both cases:
$ dig +noall +answer home.kreme.com in a | awk '/[\t ]A[\t ]/ {print $NF}'
23.24.150.141
$ dig +noall +answer dave.knig.ht in a | awk '/[\t ]A[\t ]/ {print $NF}'
216.235.14.46
$ dig +noall +answer cancer.ucs.ed.ac.uk | perl -ne ' /\sA\s/ do {
@_=split; print $_[$#_]\n }'
129.215.166.13
129.215.200.7
Sam
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Re: Digging to the final IP
At Thu, 23 Oct 2014 15:17:49 +0100,
Sam Wilson wrote:
In article mailman.1128.1414072988.26362.bind-us...@lists.isc.org,
Bob Harold rharo...@umich.edu wrote:
Anytime you see 'grep' and 'cut' used together, they can usually be
shortened to just 'awk', which requires starting one less process. And if
this case it splits fields the way a users sees them, so the same code
works in both cases:
$ dig +noall +answer home.kreme.com in a | awk '/[\t ]A[\t ]/ {print $NF}'
23.24.150.141
$ dig +noall +answer dave.knig.ht in a | awk '/[\t ]A[\t ]/ {print $NF}'
216.235.14.46
$ dig +noall +answer cancer.ucs.ed.ac.uk | perl -ne ' /\sA\s/ do {
@_=split; print $_[$#_]\n }'
129.215.166.13
129.215.200.7
Which makes it easy, in either case, to return a status value, as
Frank Bulk seemed to want.
Something like
'... {print $NF; count++} END {exit ! count}'
or
| perl -ane ' /\sA\s/ do { print $F[$#F]\n; $count++ } END
{exit ! $count }'
might work.
Niall
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Re: Digging to the final IP
At Thu, 23 Oct 2014 15:17:49 +0100,
Sam Wilson wrote:
In article mailman.1128.1414072988.26362.bind-us...@lists.isc.org,
Bob Harold rharo...@umich.edu wrote:
Anytime you see 'grep' and 'cut' used together, they can usually be
shortened to just 'awk', which requires starting one less process. And if
this case it splits fields the way a users sees them, so the same code
works in both cases:
$ dig +noall +answer home.kreme.com in a | awk '/[\t ]A[\t ]/ {print $NF}'
23.24.150.141
$ dig +noall +answer dave.knig.ht in a | awk '/[\t ]A[\t ]/ {print $NF}'
216.235.14.46
$ dig +noall +answer cancer.ucs.ed.ac.uk | perl -ne ' /\sA\s/ do {
@_=split; print $_[$#_]\n }'
129.215.166.13
129.215.200.7
Which makes it easy, in either case, to return a status value, as
Frank Bulk seemed to want.
Something like
'... {print $NF; count++} END {exit ! count}'
or
| perl -ane ' /\sA\s/ do { print $F[$#F]\n; $count++ } END
{exit ! $count }'
might work.
Niall
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Re: Digging to the final IP
At Tue, 21 Oct 2014 22:31:28 -0500, Frank Bulk wrote: Dave, Thanks for the input, but what I was looking for was a dig command that returns the IP(s) or a fail. It looks like the host command is the right solution in this case, not dig. Doesn't egrep fail on no match? Niall ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On Oct 22, 2014, at 5:56, Niall O'Reilly niall.orei...@ucd.ie wrote:
At Tue, 21 Oct 2014 22:31:28 -0500,
Frank Bulk wrote:
Dave,
Thanks for the input, but what I was looking for was a dig command that
returns the IP(s) or a fail. It looks like the host command is the right
solution in this case, not dig.
Doesn't egrep fail on no match?
It does, but the cut at the end of the pipeline swallows it’s exit status
We can still get that though…
$ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6
216.235.14.46
$ echo ${PIPESTATUS[1]}
0
$ dig +noall +answer hopefully.this.does.not.exist in a | egrep 'IN\tA\t' | cut
-f6
$ echo ${PIPESTATUS[1]}
1
That is if you’re using bash of course…
dave
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Re: Digging to the final IP
On 21 Oct 2014, at 22:46 , Jim Young jyo...@gsu.edu wrote: On 10/22/14 12:08 AM, LuKreme krem...@kreme.com wrote: On 21 Oct 2014, at 19:20 , Dave Knight d...@knig.ht wrote: $ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6 216.235.14.46 Interesting. This works for me: dig +noall +answer home.kreme.com in a | egrep '\tA' | cut -f5 but on your example, it requires -f6 And yet, the outputs appear to have the same number of fields. $ dig +noall +answer www.kreme.com in a www.kreme.com. 21139 IN CNAME cerebus.kreme.com. cerebus.kreme.com. 21141 IN A 23.24.150.141 $ dig +noall +answer dave.knig.ht in a dave.knig.ht.13916 IN CNAME sb.sanxion.org. sb.sanxion.org. 222 IN A 216.235.14.46 Very odd. Subtle formatting difference for human consumption. There are a variable number of ASCII TABs inserted to visually align fields. Yeah, I saw the extra space after 222, but did not check for a second tab following sb.sanxion.org. This is where output generated for human consumption can be tricky to parse. That’s why I like dig +short -- BART BUCKS ARE NOT LEGAL TENDER Bart chalkboard Ep. 8F06 ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On Mon, Oct 20, 2014 at 1:19 PM, Mark Andrews ma...@isc.org wrote:
Why do we need to have a option to dig to massage the results into
every possible different form?
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Because, not everyone is as stunningly brilliant as you?
To a non-zero population of this list the above looks like line-noise...
W
Mark
In message 54451077.8030...@imperial.ac.uk, Phil Mayers writes:
On 20/10/14 14:22, Frank Bulk (iname.com) wrote:
We=92re using this in a bash shell script. I don=92t think there=92s a n=
ative
shell command to get the IP, so I=92ll use a mixture of host and dig as
necessary.
If your system has it, try getent e.g.
getent ahosts hostname
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PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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I don't think the execution is relevant when it was obviously a bad
idea in the first place.
This is like putting rabid weasels in your pants, and later expressing
regret at having chosen those particular rabid weasels and that pair
of pants.
---maf
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Re: Digging to the final IP
On Tue, Oct 21, 2014 at 12:07:15PM -0700, Warren Kumari wrote:
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Because, not everyone is as stunningly brilliant as you?
To a non-zero population of this list the above looks like line-noise...
Could be worse, could be perl. In any case, filtering the existing
output does seem better than adding every imaginable formatting option
to dig.
... I *could* maybe see adding a formatting option to produce an
easier-to-parse output header, though, such as:
; OPCODE=QUERY
; RCODE=NOERROR
; QRFLAG=1
; AAFLAG=0
; TCFLAG=0
; RDFLAG=1
; RAFLAG=1
; ADFLAG=0
; CDFLAG=0
[... etc ...]
--
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Internet Systems Consortium, Inc.
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RE: Digging to the final IP
We have people on this list who are incapable of programming simple text
extraction in *at*least*one*language*? Really?
No-one said a _scripting_ language had to be used. Feel free to use C (with
sharp or plusplus, if you wish), or Pascal, or Smalltalk, or LISP, or
Fortran, or S/370 Assembler. Whatever floats your boat. Whatever doesn't look
like line-noise to you, nor has a requirement of stunning brilliance to
use. Feel free to format it in pretty ways (if the language allows you to do
that) and/or comment it liberally.
(Personally, I'd probably use Perl with the Net::DNS module, but that's only
because I've written about a million of those scripts and so wouldn't have to
think too hard about it).
- Kevin
-Original Message-
From: bind-users-boun...@lists.isc.org
[mailto:bind-users-boun...@lists.isc.org] On Behalf Of Warren Kumari
Sent: Tuesday, October 21, 2014 3:07 PM
To: Mark Andrews
Cc: bind-us...@isc.org
Subject: Re: Digging to the final IP
On Mon, Oct 20, 2014 at 1:19 PM, Mark Andrews ma...@isc.org wrote:
Why do we need to have a option to dig to massage the results into
every possible different form?
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Because, not everyone is as stunningly brilliant as you?
To a non-zero population of this list the above looks like line-noise...
W
Mark
In message 54451077.8030...@imperial.ac.uk, Phil Mayers writes:
On 20/10/14 14:22, Frank Bulk (iname.com) wrote:
We=92re using this in a bash shell script. I don=92t think
there=92s a n=
ative
shell command to get the IP, so I=92ll use a mixture of host and
dig as necessary.
If your system has it, try getent e.g.
getent ahosts hostname
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1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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I don't think the execution is relevant when it was obviously a bad idea in the
first place.
This is like putting rabid weasels in your pants, and later expressing regret
at having chosen those particular rabid weasels and that pair of pants.
---maf
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Re: Digging to the final IP
On Oct 19, 2014, at 1:26, Frank Bulk frnk...@iname.com wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. For example, root@nagios:/tmp# dig mail.automatedwastesystems.net +short mail3.sandhills.com. root@nagios:/tmp# I'd rather know that mail3.sandhills.com is NXDOMAIN. Regards, Frank How about… $ dig +noall +answer mail.automatedwastesystems.net in a | egrep 'IN\tA\t' | cut -f6 which correctly returns nothing in this case, but when there’s a CNAME chain ending in addresses it returns them $ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6 216.235.14.46 and surely you want IPv6 support… $ dig +noall +answer dave.knig.ht in a dave.knig.ht in | egrep 'IN\t(A|)\t' | cut -f6 216.235.14.46 2001:4900:1:393::2 dave signature.asc Description: Message signed with OpenPGP using GPGMail ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
*Note: UMDNJ is now Rutgers-Biomedical and Health Sciences*
|| \\UTGERS |-*O*-
||_// Biomedical | Ryan Novosielski - Senior Technologist
|| \\ and Health | novos...@rutgers.edumailto:novos...@rutgers.edu-
973/972.0922 (2x0922)
|| \\ Sciences | OIRT/High Perf Res Comp - MSB C630, Newark
`'
On Oct 21, 2014, at 16:00, Evan Hunt e...@isc.orgmailto:e...@isc.org wrote:
On Tue, Oct 21, 2014 at 12:07:15PM -0700, Warren Kumari wrote:
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Because, not everyone is as stunningly brilliant as you?
To a non-zero population of this list the above looks like line-noise...
Could be worse, could be perl. In any case, filtering the existing
output does seem better than adding every imaginable formatting option
to dig.
... I *could* maybe see adding a formatting option to produce an
easier-to-parse output header, though, such as:
; OPCODE=QUERY
; RCODE=NOERROR
; QRFLAG=1
; AAFLAG=0
; TCFLAG=0
; RDFLAG=1
; RAFLAG=1
; ADFLAG=0
; CDFLAG=0
[... etc ...]
While on some level, I'm with you, IP only doesn't seem like a corner case.
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RE: Digging to the final IP
Dave, Thanks for the input, but what I was looking for was a dig command that returns the IP(s) or a fail. It looks like the host command is the right solution in this case, not dig. Kind regards, Frank -Original Message- From: Dave Knight [mailto:d...@knig.ht] Sent: Tuesday, October 21, 2014 8:21 PM To: Frank Bulk Cc: bind-users Subject: Re: Digging to the final IP On Oct 19, 2014, at 1:26, Frank Bulk frnk...@iname.com wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. For example, root@nagios:/tmp# dig mail.automatedwastesystems.net +short mail3.sandhills.com. root@nagios:/tmp# I'd rather know that mail3.sandhills.com is NXDOMAIN. Regards, Frank How about. $ dig +noall +answer mail.automatedwastesystems.net in a | egrep 'IN\tA\t' | cut -f6 which correctly returns nothing in this case, but when there's a CNAME chain ending in addresses it returns them $ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6 216.235.14.46 and surely you want IPv6 support. $ dig +noall +answer dave.knig.ht in a dave.knig.ht in | egrep 'IN\t(A|)\t' | cut -f6 216.235.14.46 2001:4900:1:393::2 dave ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On 21 Oct 2014, at 19:20 , Dave Knight d...@knig.ht wrote: $ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6 216.235.14.46 Interesting. This works for me: dig +noall +answer home.kreme.com in a | egrep '\tA' | cut -f5 but on your example, it requires -f6 And yet, the outputs appear to have the same number of fields. $ dig +noall +answer www.kreme.com in a www.kreme.com. 21139 IN CNAME cerebus.kreme.com. cerebus.kreme.com. 21141 IN A 23.24.150.141 $ dig +noall +answer dave.knig.ht in a dave.knig.ht. 13916 IN CNAME sb.sanxion.org. sb.sanxion.org. 222 IN A 216.235.14.46 Very odd. I use: $ dig +short $HOSTNAME | tail -1 -- A synonym is a word you use when you can't spell the word you first thought of. - Burt Bacharach ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
# dig +noall +answer dave.knig.ht a|awk '/IN\tA\t/ {print $NF}'
216.235.14.46
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Re: Digging to the final IP
On 10/22/14 12:08 AM, LuKreme krem...@kreme.com wrote: On 21 Oct 2014, at 19:20 , Dave Knight d...@knig.ht wrote: $ dig +noall +answer dave.knig.ht in a | egrep 'IN\tA\t' | cut -f6 216.235.14.46 Interesting. This works for me: dig +noall +answer home.kreme.com in a | egrep '\tA' | cut -f5 but on your example, it requires -f6 And yet, the outputs appear to have the same number of fields. $ dig +noall +answer www.kreme.com in a www.kreme.com. 21139 IN CNAME cerebus.kreme.com. cerebus.kreme.com. 21141 IN A 23.24.150.141 $ dig +noall +answer dave.knig.ht in a dave.knig.ht. 13916 IN CNAME sb.sanxion.org. sb.sanxion.org.222 IN A 216.235.14.46 Very odd. Subtle formatting difference for human consumption. There are a variable number of ASCII TABs inserted to visually align fields. $ dig +noall +answer www.kreme.com in a | egrep '\tA' | cat -t cerebus.kreme.com.^I21409^IIN^IA^I23.24.150.141 $ dig +noall +answer dave.knig.ht in a | egrep '\tA' | cat -t sb.sanxion.org.^I^I299^IIN^IA^I216.235.14.46 There is only one ASCII TAB (represented as ^I with cat -t) between cerebus.kreme.com. and 21409. but two ASCII TABs between sb.sanxion.org. and 299. I'm guessing a very short name might result in three! This is where output generated for human consumption can be tricky to parse. Best regards, Jim Y. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
If all you are after is one of the final IP addresses (not the entire set), then using a dumb client might be easier. For instance, 'ping'. $ ping -q -c1 www.google.com PING www.google.com (203.66.155.113): 56 data bytes If you want to get more than one IP address, then you'll need an intelligent client such as 'host' or 'dig: $ host www.google.com www.google.com has address 203.66.155.49 www.google.com has address 203.66.155.50 www.google.com has address 203.66.155.44 ... www.google.com has address 203.66.155.45 www.google.com has IPv6 address 2404:6800:4008:c03::67 On 10/20/14, 12:03 PM, Fajar A. Nugraha wrote: What are you using this for? If it's part of a script, it might be easier to just use gethostbyname. For example, in php: http://php.net/manual/en/function.gethostbyname.php , Returns the IPv4 address or a string containing the unmodified hostname on failure. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
RE: Digging to the final IP
We’re using this in a bash shell script. I don’t think there’s a native shell command to get the IP, so I’ll use a mixture of host and dig as necessary. Thanks, Frank From: Fajar A. Nugraha [mailto:w...@fajar.net] Sent: Sunday, October 19, 2014 11:04 PM To: Frank Bulk Cc: comp-protocols-dns-b...@isc.org Subject: Re: Digging to the final IP What are you using this for? If it's part of a script, it might be easier to just use gethostbyname. For example, in php: http://php.net/manual/en/function.gethostbyname.php , Returns the IPv4 address or a string containing the unmodified hostname on failure. -- Fajar On Mon, Oct 20, 2014 at 10:43 AM, Frank Bulk frnk...@iname.com mailto:frnk...@iname.com wrote: Thanks, what I ended up using. Didn't think that there was anything host could do that dig couldn't do. Frank -Original Message- From: bind-users-boun...@lists.isc.org mailto:bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org mailto:bind-users-boun...@lists.isc.org ] On Behalf Of Barry Margolin Sent: Sunday, October 19, 2014 5:00 AM To: comp-protocols-dns-b...@isc.org mailto:comp-protocols-dns-b...@isc.org Subject: Re: Digging to the final IP In article mailman.1097.1413711142.26362.bind-us...@lists.isc.org mailto:mailman.1097.1413711142.26362.bind-us...@lists.isc.org , Sten Carlsen st...@s-carlsen.dk mailto:st...@s-carlsen.dk wrote: Would host be closer to what you want? Host also tells you about aliases it encounters along the way. -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! On 19 Oct 2014, at 08:05, Karl Auer ka...@biplane.com.au mailto:ka...@biplane.com.au wrote: On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au mailto:ka...@biplane.com.au ) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org mailto:bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users -- Barry Margolin Arlington, MA ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org mailto:bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org mailto:bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On 20/10/14 14:22, Frank Bulk (iname.com) wrote: We’re using this in a bash shell script. I don’t think there’s a native shell command to get the IP, so I’ll use a mixture of host and dig as necessary. If your system has it, try getent e.g. getent ahosts hostname ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
Why do we need to have a option to dig to massage the results into
every possible different form?
dig A $name | awk '$0 ~ /status/ $0 !~ /status: NOERROR,/ {
sub(,, , $6 ); print $6; x=1
}
$4 == A { print $5; x=1 }
END { if (!x) print TIMEOUT }'
Mark
In message 54451077.8030...@imperial.ac.uk, Phil Mayers writes:
On 20/10/14 14:22, Frank Bulk (iname.com) wrote:
We=92re using this in a bash shell script. I don=92t think there=92s a n=
ative
shell command to get the IP, so I=92ll use a mixture of host and dig as
necessary.
If your system has it, try getent e.g.
getent ahosts hostname
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Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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RE: Digging to the final IP
That feature runs on our system, but it doesn't digging through to a final IP or failure: getent ahosts mail.automatedwastesystems.net returns nothing. Regards, Frank -Original Message- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Phil Mayers Sent: Monday, October 20, 2014 8:39 AM To: bind-users@lists.isc.org Subject: Re: Digging to the final IP On 20/10/14 14:22, Frank Bulk (iname.com) wrote: We're using this in a bash shell script. I don't think there's a native shell command to get the IP, so I'll use a mixture of host and dig as necessary. If your system has it, try getent e.g. getent ahosts hostname ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
Would host be closer to what you want? -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! On 19 Oct 2014, at 08:05, Karl Auer ka...@biplane.com.au wrote: On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
In article mailman.1097.1413711142.26362.bind-us...@lists.isc.org, Sten Carlsen st...@s-carlsen.dk wrote: Would host be closer to what you want? Host also tells you about aliases it encounters along the way. -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! On 19 Oct 2014, at 08:05, Karl Auer ka...@biplane.com.au wrote: On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users -- Barry Margolin Arlington, MA ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
RE: Digging to the final IP
Thanks, what I ended up using. Didn't think that there was anything host could do that dig couldn't do. Frank -Original Message- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Barry Margolin Sent: Sunday, October 19, 2014 5:00 AM To: comp-protocols-dns-b...@isc.org Subject: Re: Digging to the final IP In article mailman.1097.1413711142.26362.bind-us...@lists.isc.org, Sten Carlsen st...@s-carlsen.dk wrote: Would host be closer to what you want? Host also tells you about aliases it encounters along the way. -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! On 19 Oct 2014, at 08:05, Karl Auer ka...@biplane.com.au wrote: On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users -- Barry Margolin Arlington, MA ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Digging to the final IP
What are you using this for? If it's part of a script, it might be easier to just use gethostbyname. For example, in php: http://php.net/manual/en/function.gethostbyname.php , Returns the IPv4 address or a string containing the unmodified hostname on failure. -- Fajar On Mon, Oct 20, 2014 at 10:43 AM, Frank Bulk frnk...@iname.com wrote: Thanks, what I ended up using. Didn't think that there was anything host could do that dig couldn't do. Frank -Original Message- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Barry Margolin Sent: Sunday, October 19, 2014 5:00 AM To: comp-protocols-dns-b...@isc.org Subject: Re: Digging to the final IP In article mailman.1097.1413711142.26362.bind-us...@lists.isc.org, Sten Carlsen st...@s-carlsen.dk wrote: Would host be closer to what you want? Host also tells you about aliases it encounters along the way. -- Best regards Sten Carlsen No improvements come from shouting: MALE BOVINE MANURE!!! On 19 Oct 2014, at 08:05, Karl Auer ka...@biplane.com.au wrote: On Sun, 2014-10-19 at 00:26 -0500, Frank Bulk wrote: Is there a dig option that will list out the final (IPs) or query result?? By default, even with +short, it can list intermediate CNAME(s) and not what IP(s) that CNAME may have. Not great, but might be enough to be helpful: dig +nonssearch $1 | egrep -i STATUS|^$1 Regards, K. -- ~~~ Karl Auer (ka...@biplane.com.au) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: EC67 61E2 C2F6 EB55 884B E129 072B 0AF0 72AA 9882 Old fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users -- Barry Margolin Arlington, MA ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
