I have installed tigase server in my linux machine.
After successfully installed tigase i found following in etc/init.properties.
--user-db = mysql
--admins = admin@username
--user-db-uri = jdbc:mysql://localhost/tigasedb?user=tigase&password=tigase12
config-type = --gen-config-def
--virt-hosts = username
--debug = server
Now, I want to install pubsub component with already installed server.
You need to reinstall with advance configuration options instead of basic installation.
You will get options for which component you need to configure with server.