Beginning on July 11th ISC Networking will disable off-campus recursive access to it’s DNS servers. In other words, Penn’s DNS service will no longer accept DNS translation requests from computers outside of PennNet. On-campus users and the vast majority of off-campus users should not be impacted by these changes.
ISC has prepared some documentation to help LSPs communicate these changes and diagnose issues related to these changes. Additional details are available via the links below.