LISTEN to your child
As a parent, it is important that you remain one of the "go-to" individuals in your child's life. Encourage them to open up to you and be prudent with your words. When your children want to talk about something that got them into trouble or about something that they did wrong, do not scold them! Instead, let them finish speaking, and immediately thank them for opening up to you. Then you can proceed to prudently pointing out their mistakes and encourage them to make amends.
There is nothing more important than being able to maintain an open and honest line of communication between parent and child, even more so if the parent lives abroad. Afraid of the conversation getting cut? Make use of applications such as Google Hangout, Skype, Viber, and Line to enjoy uninterrupted messaging and calls (assuming you have a stable internet connection).