Can I log into multiple instances of discourse simultaneously?

[tophee (Christoph)]

In addition to the above answers to your question, you might also want to think twice before setting up separate discourse instances for different cities. See this topic for more on this:

Setting up Multiple Instances of Discourse as Subdomains

Hi everyone, I have a few questions and was wondering if you could help me clearing some doubts. I have discourse set up under a main domain and not under a subdomain. I have recently changed my mind and instead of having my forum categories in one place, I would like to have them set up as subdomains, my questions are: can I set up multiple instances of discourse under one domain? As in, Category of computer, nature, life and science. Can I set up four subdomains and one discourse instance i…