Starting on Monday, Sept. 12, at 8 a.m., computing systems (including mobile devices) on the main Fermilab network (fgz network) will no longer be able to access non-Fermilab domain name system (DNS) servers. If your device is configured to only use offsite DNS servers, this will result in your computing system being unable to resolve any addresses and make it appear as though your device cannot access the Internet. Use of non-Fermilab DNS servers presents a computer security risk, since other DNS servers can cause malware to be installed on your computer or mobile device.
If you have not manually configured your computer or mobile device to use another DNS server, (which is the case for the majority of people), this will not present a problem. Your device will automatically use the Fermilab wireless network when you are at Fermilab and some other network when you are somewhere else.
However, if you have configured your computer or mobile device to use another DNS server, you will need to reconfigure your DNS settings to use the Fermilab DNS AnyCast address, 220.127.116.11, before 8 a.m. on Sept. 12. If you do not reconfigure your DNS settings by that time, you may not be able to access any network services while on site at Fermilab.