Controlling a computer remotely

Question

I am location independent and advertise my services on CL throughout the US and Canada.  I travel a lot and work from a 11' MBA but am not able to use CL when overseas (because of IP or geo-something or another).
I am wondering if I could set up a Mac Mini at home in the US and connect to it remotely to post my ads when I am out of town.  It seems like a pretty easy solution, but I feel like I might be missing something.  I am pretty much a novice when it comes to these things. 
Any thoughts on the viability of this solution?
Lastly, I am traveling to China, India and London in a few weeks.  While I am not too worried about India and London, does anyone know if accessing a remote desktop is an option from within China?
Sorry if this is the wrong forum for this question!
Thanks for any help.  I really appreciate it.

Answer 1

I am having trouble with passing a socket to a timer task. The #### comments show what I want to do.
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package clienttcp;
import java.net.*;
import java.io.*;
import java.lang.String.*;
import java.util.Timer;
import java.util.TimerTask;
public class clientTCP {
public static void main(String[] args) throws IOException {
String host = "localhost";
int port = 4444;
Socket OrderSocket = null;
PrintWriter fromClient = null;
BufferedReader toClient = null;
try {
OrderSocket = new Socket(host, port);
fromClient = new PrintWriter(OrderSocket.getOutputStream(), true);
toClient = new BufferedReader(new InputStreamReader(OrderSocket.getInputStream()));
} catch (UnknownHostException e) {
System.err.printf("Don't know about host: %s.\n", host);
System.exit(1);
} catch (IOException e) {
System.err.printf("Couldn't get I/O for the connection to: %s.\n", host);
System.exit(1);
BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
String fromServer;
fromClient.println("First hi");
//###### I want a timer to do this every 10 seconds ##########################
// fromClient.println("hi");
while (true) {
// first process the reply then drop down to body
if ((fromServer = toClient.readLine()) != null) {
System.out.println("GrocServer: " + fromServer);
if (fromServer.equals("Bye.")) {
break;
fromClient.close();
toClient.close();
stdIn.close();
OrderSocket.close();
}