logging responses from bind

I have Redhat 8 running bind version 9.2.1.

I have a DNS round robin to spread requests accross a handful of web
servers, and it sometimes seems to "get stuck" on just one server.

As part of debugging that, I would like to eliminate bind as a source
of the problem; I would like to log bind's DNS queries and responses
for a while to confirm that it is rotating among the pool.

After reading some man pages and googling, I have this in the
named.conf file:

logging {
channel simple_log {
file "/var/log/named/bind.log" versions 3 size 5m;
#severity warning;
severity info;
print-time yes;
print-severity yes;
print-category yes;
};
category default{
simple_log;
};
};

This does not seem to be putting the requests/responses in the log
file. Does anyone know how to do this ? Should the "severity"
setting be something different, and if so, what ?

Thanks in advance,

--Rob

"Rob Ristroph" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...

> This does not seem to be putting the requests/responses in the log
> file. Does anyone know how to do this ? Should the "severity"
> setting be something different, and if so, what ?

http://triton.process.com/bind-docs/logging.html and perusing the debug
levels might be helpful to you.