www.example.com (production)

www-staging.example.com (staging)

www-test.example.com (testing)

www-dev.example.com (dev, goes to 127.0.0.1)

other:

by port, would have to hit one ip, then redirect. could use a load balancer.

by deeper subdomain, stage.www.example.com , problems w wildcard ssl certs? would need ucc cert?

with subfolder, would have to hit one ip, then redirect

issues:

0. assume different machines for d, t, s, p

1. we have multiple real subdomains, so don't want, say "dev.example.com"

2. ssl certs

3. we always use www for webservers due to the problem w cookies on naked domains, meaning that we always 301 redirect example.com to www.example.com

4. working on multiple sites at a time

thanks!