Change IP of slave server

[pgarcia]

If I have move a server (slave or master) from the network so it will change its IP.

 how can i change the ip on the master and the slave to continue working without reinstalling usersandgroups (ebox-usersandgroups-reinstall).

I have tried changing the ip on https://ipslave/ebox/Users/View/Mode and adding on /etc/hosts master the IP slave  but it dont work
 
only be done in this way with ebox-usersandgroups-reinstall??

Thanks