Keeping auth token from expiring

[mythprod]

Hi guys, I have a deki up on the cloud that denies anonymous users. However, I've built an auth token so anyone can access a certain part of the deki. I give them access by sending a URL with an auth token appended to the URL (http://server.com/pathtodesiredpage?authtoken=888888...). That's been working great, however the auth token didn't work today when I checked it, it's requiring me to log in again. I'm assuming my auth token expired? I'm wondering if there's a place in the control panel somewhere I can configure tokens not to expire or if it's some other setting in a config file I don't know about. Also, is there a better way to handle this situation than auth tokens? I'm open to the method, just wanting something that won't expire so anonymous users can access one small part of the deki.

TIA!

[mythprod]

for more insight, I gained my knowledge of the auth token from this thread. It looked like the last reply was that as far as what was known the session should never expire as long as the user didn't log out?

http://forums.developer.mindtouch.co...ls-on-the-URL&