All logs generated by the Chef server can be found in /var/log/opscode. Each service enabled on the system also has a sub-directory in which service-specific logs are located, typically found in /var/log/opscode/service_name.
The Chef server has built-in support for easily tailing the logs that are generated. To view all the logs being generated on the Chef server, enter the following command:
> chef-server-ctl tail
To view logs for a specific service:
> chef-server-ctl tail SERVICENAME
where SERVICENAME should be replaced Read more click here
Reference:- This article was originally posted on scmGalaxy.com