Overview:

You get errors when trying to start Jive after migrating it to another server.

ERROR com.jivesoftware.service.tenant.SingleTenantService - Please check your connectivity to the directory service!
SkyhookConfigInfo{skyhookHost=xxx.yyy.zzz.com, skyhookPort=30000, socketTimeout=10000}
Please ensure a firewall isnt blocking access.

Solution:

Check if the property http.proxyHost exists in the jiveproperty table in the database.

select * from jiveproperty where name like 'http.proxyHost'

The output of this should look somewhat like

"http.proxyHost";"192.168.0.1"

Ensure that the proxy address listed here is correct and reachable.

There are other parameters that manage the outgoing proxy:

http.proxyHost =
http.proxyPort =
http.proxyUsername = 
http.proxyPassword =