Accessing Central Administration with Google Chrome

January 4, 2012 Max Melcher

1 minute read

When accessing Central Administration with Google Chrome you will get the following:

"This webpage is unavailable"

with the description:

Error 312 (net::ERR_UNSAFE_PORT): Unknown error.

In order to fix that edit the Properties of the Chrome link and append the following to the “target” value:

--explicitly-allowed-ports=42

where 42 is the port for your Central Administration. You can add more ports if you want, in total it should like this:

C:\Users\mmelcher\AppData\Local\Google\Chrome\Application\chrome.exe --explicitly-allowed-ports=42,84,87

Still dont like it - ports are not unsafe by default - but at least there is an option to allow it. Dont you think?

Melcher.dev