If you read the news today, you will see that there is a very bad security vulnerability with a software library called log4j.  We are vulnerable in several applications. In response we have proactively removed external access to these sites. 

Here is a list of what is affected
1.  alertus.emu.edu   
2.  labtutor.emu.edu 
3.  phone.emu.edu 
4.  papercut.emu.edu
5.  resources.emu.edu External access restored 12/11/21 11:00AM