BIND 9.5.0-P2 DNS issue

[Daniel Dawalibi]

Hi,
 

 

After upgrading from our Bind version to Bind 9.5.0-P2 we faced many
resolving problems such "Server Failed" messages on any valid domain. 

 

# nslookup

Default Server:  localhost

Address:  127.0.0.1

 

> www.google.com

Server:  localhost

Address:  127.0.0.1

 

> ***Server Failed ****

 

 

The server failed messages occurred when the number of recursive clients
reach a certain number (i.e : 400 recursive clients)

 

 

Output of the command rndc:

 

./rndc status 

recursive clients: 349/10000

tcp clients: 6/100

server is up and running

 

 

Any idea about this issue?

 

 

Regards,

Daniel