Thank you for your help.
Regarding question number 1, with or without setting IP and port I get:
string(22) “Pods Alt Cache worked!”
string(23) “WP Object Cache worked!”
string(26) “WP Transient Cache worked!”
How do I know whether I should set IP and port or not?
Regarding question number 2, I get a warning:
Cannot send session cache limiter – headers already sent
Should i change something?