Sunos 5.8 Error:EDNS not supported by your namesever

[Mark Andrews]

In message <20120905071700.GA2061 at nic.fr>, Stephane Bortzmeyer writes:
> On Wed, Sep 05, 2012 at 10:01:45AM +0300,
>  syed haq <smuh99 at gmail.com> wrote 
>  a message of 66 lines which said:
> 
> > EDNS not supported by ***.**.**.**
> 
> 1) Test your name server to be sure the diagnostic is correct:
> 
> dig +bufsize=4096 @YOUR-NAME-SERVER SOA YOUR-DOMAIN
> 
> You should get in the answer something like:
> 
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 4096
> 
> (To test with a non-EDNS name server, 'dig +bufsize=4096
> @uz5dz39x8xk8wyq3dzn7vpt670qmvzx0zd9zg4ldwldkv6kx9ft090.ns.yp.to SOA
> yp.to' and with a EDNS name server 'dig +bufsize=4096 @f.ext.nic.fr
> SOA fr' so you can see the difference)
> 
> 2) BIND supports EDNS for so long that everyone forget when it was
> included. So, it is unlikely it is the fault of your name server. If
> your name server does not support EDNS, it probably means there is a
> broken middlebox (firewall or something like that: most are configured
> by ignorants, specially when it comes to the DNS) that you have to
> fix.

SunOS 5.8 is ancient (12+ year old)and no longer supported by Oracle.
I can't remember which version of BIND 8, SunOS 5.8 shipped with
but it wasn't a recent version at the time.  Named will most probably
have to be replaced.  He can compile a modern version of BIND 9 or
down load a prebuilt version.  It looks like unixpackages.com has
a prebuilt package but I'm not going to subscribe to confirm.

Alternatively the OS could be upgraded to a more recent release or
the entire machine could be replaced.

Mark
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org