Re: [Off-Topic] RE: This list's prefix

2013-06-06 Thread Narcis Garcia
Not everyone has the same software infrastructure, and not everyone has
the same visual proficiency. For this reason a Subject Prefix helps on
manage much messages on inbox.

I don't understand why the Subject Prefix can be inconvenient for
someone, if it's brief.


Al 06/06/13 01:11, En/na Stuart Browne ha escrit:
 -Original Message-
 From: bind-users-bounces+stuart.browne=ausregistry.com...@lists.isc.org
 [mailto:bind-users-bounces+stuart.browne=ausregistry.com...@lists.isc.org]
 On Behalf Of Elmar K. Bins
 Sent: Thursday, 6 June 2013 5:46 AM
 To: bind-users@lists.isc.org
 Subject: Re: This list's prefix

 war...@kumari.net (Warren Kumari) wrote:

 And the 100-dollar-question is: How do you remove them on outgoing
 mails? ;-)
 You don't -- that's part of the churches evangelism / outreach effort.

 ;)


 (Less flip answer: sorry, don't know if you can...)

 Just wondering, because your responses arrive without them.
 
 If you run your own SMTP gateway that supports milters, have-at-it.  Not 
 overly difficult, plenty of C and perl examples out there.
 
 Stuart
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RFC 1918 Warning Event ID 2

2013-06-06 Thread Eng_M.wahab
Dears,

I was receiving the below warning event :

Event Type:Warning
Event Source:named
Event Category:None
Event ID:2
Date:6/5/2013
Time:11:01:30 AM
User:N/A
Computer:DNS01
Description:
client 10.0.11.162#62089: RFC 1918 response from Internet for 
26.201.21.172.in-addr.arpa


And after searching I found a solution which says :

** create empty zones as following

zone 10.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   zone 16.172.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   ...

   zone 31.172.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   zone 168.192.IN-ADDR.ARPA {
   type master;
   file empty;
   };




   ** And empty zone is 


$TTL86400
@   IN  SOA ns1.eccsolutions.net. hostmaster.eccsolutions.net. (
  2013050901  ; Serial
  28800  ; Refresh
  14400  ; Retry
  360; Expire
  86400 ); Minimum
  IN  NS   ns1.eccsolutions.net.
  IN  NS   ns2.eccsolutions.net.


Now I receive such events in my Secondary DNS server

Event Type:Warning
Event Source:named
Event Category:None
Event ID:2
Date:6/3/2013
Time:4:05:54 PM
User:N/A
Computer:DNS02
Description:
zone 10.IN-ADDR.ARPA/IN: saved 'db.empty' as 'db-2072'


And

Event Type:Error
Event Source:named
Event Category:None
Event ID:1
Date:6/4/2013
Time:11:59:44 AM
User:N/A
Computer:DNS02
Description:
zone 10.IN-ADDR.ARPA/IN: loading from master file db.empty failed: not at top 
of zone

what is wrong with my configuration and how to solve this ? 
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Re: RFC 1918 Warning Event ID 2

2013-06-06 Thread Mark Andrews

In message dub101-ds17938d7e8867dfe699b6edc2...@phx.gbl, Eng_M.wahab writes
:

 Dears,

 I was receiving the below warning event :

 Event Type:Warning
 Event Source:named
 Event Category:None
 Event ID:2
 Date:6/5/2013
 Time:11:01:30 AM
 User:N/A
 Computer:DNS01
 Description:
 client 10.0.11.162#62089: RFC 1918 response from Internet for
 26.201.21.172.in-addr.arpa


 And after searching I found a solution which says :

 ** create empty zones as following

 zone 10.IN-ADDR.ARPA {
type master;
file empty;
};

zone 16.172.IN-ADDR.ARPA {
type master;
file empty;
};

...

zone 31.172.IN-ADDR.ARPA {
type master;
file empty;
};

zone 168.192.IN-ADDR.ARPA {
type master;
file empty;
};




** And empty zone is


 $TTL86400
 @   IN  SOA ns1.eccsolutions.net.
 hostmaster.eccsolutions.net. (
   2013050901  ; Serial
   28800  ; Refresh
   14400  ; Retry
   360; Expire
   86400 ); Minimum
   IN  NS   ns1.eccsolutions.net.
   IN  NS   ns2.eccsolutions.net.


 Now I receive such events in my Secondary DNS server

 Event Type:Warning
 Event Source:named
 Event Category:None
 Event ID:2
 Date:6/3/2013
 Time:4:05:54 PM
 User:N/A
 Computer:DNS02
 Description:
 zone 10.IN-ADDR.ARPA/IN: saved 'db.empty' as 'db-2072'


 And

 Event Type:Error
 Event Source:named
 Event Category:None
 Event ID:1
 Date:6/4/2013
 Time:11:59:44 AM
 User:N/A
 Computer:DNS02
 Description:
 zone 10.IN-ADDR.ARPA/IN: loading from master file db.empty failed: not at
 top of zone

 what is wrong with my configuration and how to solve this ?

Follow the instructions on the second server.  i.e. use master zones
not slave zones.  Slave zones cannot share files.

Mark
-- 
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: any requests

2013-06-06 Thread Tony Finch
Doug Barton do...@dougbarton.us wrote:
 On 06/05/2013 11:33 AM, Tony Finch wrote:
  I believe the ANY hack on mail servers was a Sendmailism 20ish years ago.

 s/Send/q/

No, I meant Sendmail - see http://fanf.livejournal.com/10.html

Sendmail at one time tried to use ANY for combined MX+A lookups, which
doesn't work. qmail uses ANY for CNAME lookups, which sort-of works, apart
from a number of bugs described on the page above.

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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Re: any requests

2013-06-06 Thread Tony Finch
Vernon Schryver v...@rhyolite.com wrote:

  [ANY query for combined MX/A lookup was] a bad hack then and it
  has remained a bad hack :-)

 I would not agree if you could rely on the open resolvers continuing
 to do what they're doing, if you didn't care about parsing 3 or 4
 KBytes of irrelevant bits to get the RRsets you want, and if you don't
 care about spending 9 or 10 IP packets on a truncated UDP responce and
 then a full TCP response instead of 6 on 3 separate queries.

 With BIND as your DNS server, it could be a win for bursts of mail to
 a single SMTP server if your SMTP client is too dumb to do the obvious,
 safe caching.  At worst you would need to ask for ANY, MX, A, and ,
 but some of the time the ANY would have all of the RRsets.

There are other caveats:

The ANY query does not trigger additional section processing, so if you
find MX records in the result you have to make follow-up queries to get
the A and  records of the targets; if you made an MX query in the
first place you often don't need to make more queries.

The ANY query does not trigger alias processing, so if there is a CNAME
chain you have to follow it yourself. This is a waste because if you made
an MX query in the first place the server would have given you the whole
chain without further queries.

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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Re: RFC 1918 Warning Event ID 2

2013-06-06 Thread Eng_M.wahab

Thanks Mark,

It works in a perfect way ;)

As for the below error, does it have anything to do with the RFC 1918 issue 
or it's another issue ?


Event Type:Error
Event Source:named
Event Category:None
Event ID:1
Date:6/6/2013
Time:12:09:44 PM
User:N/A
Computer:DNS01
Description:
client 81.xx.xx.xx#63209: update '0.10.in-addr.arpa/IN' denied

-Original Message- 
From: Mark Andrews

Sent: Thursday, June 06, 2013 10:17 AM
To: Eng_M.wahab
Cc: bind-us...@isc.org
Subject: Re: RFC 1918 Warning Event ID 2


In message dub101-ds17938d7e8867dfe699b6edc2...@phx.gbl, Eng_M.wahab 
writes

:


Dears,

I was receiving the below warning event :

Event Type:Warning
Event Source:named
Event Category:None
Event ID:2
Date:6/5/2013
Time:11:01:30 AM
User:N/A
Computer:DNS01
Description:
client 10.0.11.162#62089: RFC 1918 response from Internet for
26.201.21.172.in-addr.arpa


And after searching I found a solution which says :

** create empty zones as following

zone 10.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   zone 16.172.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   ...

   zone 31.172.IN-ADDR.ARPA {
   type master;
   file empty;
   };

   zone 168.192.IN-ADDR.ARPA {
   type master;
   file empty;
   };




   ** And empty zone is


$TTL86400
@   IN  SOA ns1.eccsolutions.net.
hostmaster.eccsolutions.net. (
  2013050901  ; Serial
  28800  ; Refresh
  14400  ; Retry
  360; Expire
  86400 ); Minimum
  IN  NS   ns1.eccsolutions.net.
  IN  NS   ns2.eccsolutions.net.


Now I receive such events in my Secondary DNS server

Event Type:Warning
Event Source:named
Event Category:None
Event ID:2
Date:6/3/2013
Time:4:05:54 PM
User:N/A
Computer:DNS02
Description:
zone 10.IN-ADDR.ARPA/IN: saved 'db.empty' as 'db-2072'


And

Event Type:Error
Event Source:named
Event Category:None
Event ID:1
Date:6/4/2013
Time:11:59:44 AM
User:N/A
Computer:DNS02
Description:
zone 10.IN-ADDR.ARPA/IN: loading from master file db.empty failed: not at
top of zone

what is wrong with my configuration and how to solve this ?


Follow the instructions on the second server.  i.e. use master zones
not slave zones.  Slave zones cannot share files.

Mark
--
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: Bind 9.9.3 configuration message: missing 'file' entry

2013-06-06 Thread Spain, Dr. Jeffry A.
 The brackets were wrong and we should have checked that obj was true.

 The patch you provided makes the log message go away. The bind9 service 
 appears to be working normally, and named-checkconf produces no output. 
 Thanks. Jeff.

FYI. The patch for /lib/bind9/check.c provided earlier in this thread appears 
to be applicable to 9.9.3-P1 as well. There were no changes to this file 
between the two releases. Jeff.
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Re: RFC 1918 Warning Event ID 2

2013-06-06 Thread Mark Andrews

In message dub101-ds177bb02f419f2957ff9507c2...@phx.gbl, Eng_M.wahab writes
:
 Thanks Mark,
 
 It works in a perfect way ;)
 
 As for the below error, does it have anything to do with the RFC 1918 issue 
 or it's another issue ?
 
 Event Type:Error
 Event Source:named
 Event Category:None
 Event ID:1
 Date:6/6/2013
 Time:12:09:44 PM
 User:N/A
 Computer:DNS01
 Description:
 client 81.xx.xx.xx#63209: update '0.10.in-addr.arpa/IN' denied

You have clients attempting to dynamically update the reverse zone.
This could be a dhcp server or machines the machines themselves.
You need to decide if this is appropriate or not and if appropriate
adjust the configuration to allow it.  By default updates are denied.

Mark
-- 
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: RFC 1918 Warning Event ID 2

2013-06-06 Thread Eng_M.wahab
Thnkx one more time Mark , It's wrong behavior so I keep the default 
settings.


-Original Message- 
From: Mark Andrews

Sent: Thursday, June 06, 2013 2:27 PM
To: Eng_M.wahab
Cc: bind-us...@isc.org
Subject: Re: RFC 1918 Warning Event ID 2


In message dub101-ds177bb02f419f2957ff9507c2...@phx.gbl, Eng_M.wahab 
writes

:

Thanks Mark,

It works in a perfect way ;)

As for the below error, does it have anything to do with the RFC 1918 
issue

or it's another issue ?

Event Type:Error
Event Source:named
Event Category:None
Event ID:1
Date:6/6/2013
Time:12:09:44 PM
User:N/A
Computer:DNS01
Description:
client 81.xx.xx.xx#63209: update '0.10.in-addr.arpa/IN' denied


You have clients attempting to dynamically update the reverse zone.
This could be a dhcp server or machines the machines themselves.
You need to decide if this is appropriate or not and if appropriate
adjust the configuration to allow it.  By default updates are denied.

Mark
--
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: This list's prefix

2013-06-06 Thread Mike Hoskins (michoski)
-Original Message-

From: Elmar K. Bins e...@4ever.de
Organization: unorganized since 1789
Date: Thursday, June 6, 2013 6:18 AM
To: bind-users@lists.isc.org bind-users@lists.isc.org
Subject: Re: This list's prefix

s...@resistor.net (SM) wrote:

 And the 100-dollar-question is: How do you remove them on outgoing
mails? ;-)
 The answer is to edit the subject line after hitting the reply button.
:-)

I feared this would be the ugly truth...

Or don't buy into religion and have a simpler life.

;-)

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Re: [Architecture discussion] IPv6 and best practices for DNS naming and the MX/SMTP problem

2013-06-06 Thread Andreas Meile

Hello Carsten and Kevin

Thanks for your answers. As a short summary, I will use (and recommend) the 
following ways:


- consider .local/.loc/.intra/.lan etc. as legacy which should be eliminated 
(Microsoft officially supports Active Directory domain renaming procedures 
for that).
- preferred way is to use intra.example.com, dmz.example.com etc. so 
example.com itself can stay fully public while the sub DNS zones can be 
setup restricted but the correct DNS delegation chains must be complete so 
every DNS resolver on the world on a authorized system (this can also be a 
friend company or local office over VPN, not only the LAN behind the 
firewall itself) can resolve the names and IP(v6) adresses successfully in 
both directions.
- In BIND this list of authorized resolvers can be setup with the 
allow-query directive, so unauthorized systems don't get a DNS timeout, they 
just get a refused answer when trying to resolve internal resources.
- a smart relay host with both public IPv4 and IPv6 addresses on the network 
interfaces eliminates the dual stack MX / EHLO hostname IPv4-NAT problem 
because I fully can control the way between my internal mail server and the 
smart relay host (they always can [and should] communicate over IPv6 for 
example so there is no need to point the MX record to the firewall instead 
internal mail server itself because of NAT) = this even allows me to put 
the smart relay host as a friend system for my internal DNS server so the 
MTA on the smart relay host knows mailserv.intra.example.com as valid EHLO 
hostname and can send i...@example.com to 
infou...@mailserv.intra.example.com for example (forwarding rule).


In my own network I already started to implement several of these measures. 
My current goal is to implement dual-stack for every component/network 
segment so I can give some feedback in a later time. When everything works 
well, another goal is to implement that in my customer's networks (I am 
working as freelancer for several regional customers) as part of future IT 
migration projects.


Corrections and additions are welcome. :-)

Andreas

- Original Message - 
From: Carsten Strotmann c...@strotmann.de

To: Andreas Meile mailingli...@andreas-meile.ch
Cc: bind-users@lists.isc.org
Sent: Monday, May 27, 2013 8:20 AM
Subject: Re: [Architecture discussion] IPv6 and best practices for DNS 
naming and the MX/SMTP problem




Hello Andreas,

[...]
--
Teste die PC-Sicherheit mit www.sec-check.net 



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Re: any requests

2013-06-06 Thread Barry Margolin
In article mailman.488.1370508226.20661.bind-us...@lists.isc.org,
 Tony Finch d...@dotat.at wrote:

 The ANY query does not trigger alias processing, so if there is a CNAME
 chain you have to follow it yourself. This is a waste because if you made
 an MX query in the first place the server would have given you the whole
 chain without further queries.

Unless the links in the CNAME chain are in the same bailiwick, isn't the 
client going to ignore them and follow them itself, to avoid cache 
poisoning?

-- 
Barry Margolin
Arlington, MA
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Re: any requests

2013-06-06 Thread Tony Finch
Barry Margolin bar...@alum.mit.edu wrote:
 In article mailman.488.1370508226.20661.bind-us...@lists.isc.org,
  Tony Finch d...@dotat.at wrote:

  The ANY query does not trigger alias processing, so if there is a CNAME
  chain you have to follow it yourself. This is a waste because if you made
  an MX query in the first place the server would have given you the whole
  chain without further queries.

 Unless the links in the CNAME chain are in the same bailiwick, isn't the
 client going to ignore them and follow them itself, to avoid cache
 poisoning?

The client is a stub resolver, the server is a recursive resolver. The
recursive server will either serve the CNAME chain from cache or chase it
safely if necessary,

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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Build BIND 9.9.3-P1 on Solaris 10 with 'cc', using OpenSSL built with 'gcc'?

2013-06-06 Thread Mike Peterson
Is there any way to build BIND 9.9.3-P1 on Solaris 10 with 'cc', using 
OpenSSL built with 'gcc'?


There are many other packages that use OpenSSL that only build with 
'gcc', but BIND 9.9.3-P1 won't compile on Solaris 10 with 'gcc' (I think 
it did previously, as my notes have 'CC=gcc' set in the 'configure' 
statement, but the 'README' says building with gcc is not supported 
unless gcc is the vendor's usual compiler). Building with 'gcc' fails 
when trying to test whether 'openssl' works, and has other complaints 
before that.


It appears to build with 'cc' if OpenSSL is disabled, which disables 
DNSSEC (OK for now as we don't use it, yet).


Thanks,
Mike
--
Mike PetersonInformation Security Analyst - 
Audit
E-mail: mi...@noc.utoronto.caWWW: 
http://www.noc.utoronto.ca/
Tel: 416-978-5230   Fax: 
416-978-6620

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Re: any requests

2013-06-06 Thread Vernon Schryver
 From: Tony Finch d...@dotat.at

 Sendmail at one time tried to use ANY for combined MX+A lookups, which
 doesn't work.

That would be true and relevant if sendmail did that.  Requesting ANY,
not getting all of the MX, A, and/or  records needed, and failing
to continue making other DNS requests simply does not work.  If sendmail
did that, then given what BIND has done for eons, that bug would have
been noticed immediately eons ago.

Tony Finch pointed out privately that it wasn't until sendmail 8.12
that stopped asking for ANY records.  I found 8.11.6 on
http://rpm.pbone.net/index.php3/stat/26/dist/4/size/1399432/name/sendmail-8.11.6-1.62.3.src.rpm
sendmail/domain.c in 8.11.6 started by requesting ANY.  However it
continued requesting , A, and/or MX and parsing ANSWER sections
until it got the records needed.  It did not stop with the ANY response
unless the ANY response was dispositive (e.g contained all types or
NXDOMAIN).  My superficial code reading says it ignored ADDITIONAL
sections and so ignored potentially interesting A or  RRs in
ADDITIONAL sections.  My quick side-by-side comparison of the old
8.11.6 and current 8.14.7 domain.c says that the relevant difference
is that 8.14.7 starts with A or  and never tries ANY.

However, that is about dns_getcanonname().  getmxrr() in both 8.11.6
and 8.14 starts and ends with MX and never messes with ANY.

There is broken in that ANY scheme.  It might or might not reduce
average DNS traffic for sending mail.  I'd vote against it today for
various reasons, but that doesn't make it wrong.

There is an interesting comment in the 8.11.6 version of domain.c:

**  The ANY query is really meant to prime
**  the cache so this isn't dangerous.

If your SMTP client is very close to your recursive resolvers (typical
10 or 20 years ago), then making an ANY request that you ignore could
reduce your external DNS traffic by priming (not refreshing) the
resolver's cache.  I don't know that getmxrr() in sendmail is not
called before dns_getcanonname(), which would prevent cache the priming
by an ANY request.


About chasing CNAMEs safely or otherwise, please recall the somewhat
controversial DontExpandCnames.  The current cf/README says:

confDONT_EXPAND_CNAMES  DontExpandCnames
[False] If set, $[ ... $] lookups that
do DNS based lookups do not expand
CNAME records.  This currently violates
the published standards, but the IETF
seems to be moving toward legalizing
this.  For example, if FTP.Foo.ORG
is a CNAME for Cruft.Foo.ORG, then
with this option set a lookup of
FTP will return FTP.Foo.ORG; if
clear it returns Cruft.FOO.ORG.  N.B.
you may not see any effect until your
downstream neighbors stop doing CNAME
lookups as well.


Vernon Schryverv...@rhyolite.com
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Re: any requests

2013-06-06 Thread Tony Finch
Vernon Schryver v...@rhyolite.com wrote:

 About chasing CNAMEs safely or otherwise, please recall the somewhat
 controversial DontExpandCnames.  The current cf/README says:

 confDONT_EXPAND_CNAMES  DontExpandCnames
 [False] If set, $[ ... $] lookups that
 do DNS based lookups do not expand
 CNAME records.  This currently violates
 the published standards, but the IETF
 seems to be moving toward legalizing
 this.  For example, if FTP.Foo.ORG
 is a CNAME for Cruft.Foo.ORG, then
 with this option set a lookup of
 FTP will return FTP.Foo.ORG; if
 clear it returns Cruft.FOO.ORG.  N.B.
 you may not see any effect until your
 downstream neighbors stop doing CNAME
 lookups as well.

That sounds like it was written about 15 years ago when the DRUMS working
group was active. This currently violates the published standards refers
to RFC 1123, and the mail-related parts of that were obsoleted by RFC 2821
and then RFC 5321 which allow non-canonical domains (and in fact did right
from the first draft of November 1995).

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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Re: Build BIND 9.9.3-P1 on Solaris 10 with 'cc', using OpenSSL built with 'gcc'?

2013-06-06 Thread Mark Andrews

Supported in this case means accept bug reports for not we know
it won't work.

Mark

In message 51b0ba26.9030...@noc.utoronto.ca, Mike Peterson writes:
 Is there any way to build BIND 9.9.3-P1 on Solaris 10 with 'cc', using 
 OpenSSL built with 'gcc'?
 
 There are many other packages that use OpenSSL that only build with 
 'gcc', but BIND 9.9.3-P1 won't compile on Solaris 10 with 'gcc' (I think 
 it did previously, as my notes have 'CC=gcc' set in the 'configure' 
 statement, but the 'README' says building with gcc is not supported 
 unless gcc is the vendor's usual compiler). Building with 'gcc' fails 
 when trying to test whether 'openssl' works, and has other complaints 
 before that.
 
 It appears to build with 'cc' if OpenSSL is disabled, which disables 
 DNSSEC (OK for now as we don't use it, yet).
 
 Thanks,
 Mike
 --
 Mike PetersonInformation Security Analyst - 
 Audit
 E-mail: mi...@noc.utoronto.caWWW: 
 http://www.noc.utoronto.ca/
 Tel: 416-978-5230   Fax: 
 416-978-6620
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