Logs error appear after upgrading bind-9.5.0-P1

[Vinny Abello]

> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> Behalf Of Nelson Serafica
> Sent: Wednesday, August 06, 2008 11:50 PM
> To: bind-users at isc.org
> Subject: Logs error appear after upgrading bind-9.5.0-P1
>
> When I upgraded my bind to bind-9.5.0-P1. Logs below keeps on appearing
> from various domain.
> Aug  7 11:44:59 DNS1 named[1419]: too many timeouts resolving
> '38.108.54.121.in-addr.arpa/PTR' (in '108.54.121.in-addr.arpa'?):
> disabling EDNS
> Aug  7 11:44:59 DNS1 named[1419]: too many timeouts resolving
> 'pldtdsl.net/SPF' (in 'pldtdsl.NET'?): disabling EDNS
> Aug  7 11:44:59 DNS1 named[1419]: too many timeouts resolving
> 'ns1.aalakjhgb.com/AAAA' (in 'aalakjhgb.com'?): disabling EDNS
> Aug  7 11:44:59 DNS1 named[1419]: too many timeouts resolving
> 'ns2.aalakjhgb.com/AAAA' (in 'aalakjhgb.com'?): disabling EDNS
> Aug  7 11:44:59 DNS1 named[1419]: too many timeouts resolving
> 'ns2.aalakjhgb.com/AAAA' (in 'aalakjhgb.com'?): disabling EDNS
> Aug  7 11:45:00 DNS1 named[1419]: too many timeouts resolving
> 'ns1.aalakjhgb.com/AAAA' (in 'aalakjhgb.com'?): disabling EDNS
>
> Is this normal? Are those "too many timeouts" is just a normal logs?
> DNS server is working fine jsut curious about the logs.

Per a previous post:

With 9.5.x comes verbose logging of EDNS transactions. What does this mean? According to isc.org:

EDNS (Extension Mechanisms for DNS) have been available for around eight years and many servers (and all root servers) support it. Some firewalls don't support EDNS by default, some authoritative servers fail to respond to EDNS queries (instead of returning an required error), and timeouts also may be caused by network problems, dead servers, broken middle boxes, and broken authoritative servers. BIND 9.5 makes fallback to plain DNS from EDNS due to timeouts more visible.

If you want to silence the logging noise, edit named.conf as follows (under "logging" section):

                category edns-disabled { null; };

Read more about EDNS in the documentation for Bind9.5.x on isc.org


-Vinny