BIND 9.3.6 - server failure error code 2

[cp2011]

I started to review the logs in BIND and noticed that there are entries for server failure error code 2.

1) Why is causes these errors, even if the URL queried are valid?
2) How can I investigate the cause of these errors?
3) Is this a normal happening in BIND? I am seeing about 0.5% error rate.
4) What is considered normal rate?

Anyone has any statistic showing the max query per second that can be handled by BIND?

 

[UltraZero]

Hi. Version 9.3.6 was released sometime around 2008.

1. You might consider upgrading to a newer version 9.8.x.
or verion 9.7.4.

2. Check your log files for error. Also, you might want to contact
the makers of bind. They have a forum as far as I know as well. I think
the version you have is not supported and they will tell you to upgrade
to a more current version.

 

[cp2011]

Thanks. points noted.