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Socket connections

Rowan Chattaway
Ranch Hand

Joined: Jan 18, 2002
Posts: 75
Hi, I'm having a little trouble with Socket's!
public boolean isConnected(String ipAddress)
final int dayTimePort = 13;
final int pingPort = 7003;
final int telnetPort = 23;
BufferedReader in = null;
Socket socketComputer = null;
socketComputer = new Socket(ipAddress, dayTimePort);
//in = new BufferedReader(new InputStreamReader(socketComputer.getInputStream()));
//String timeStamp = in.readLine();
return true;
catch(UnknownHostException e)
return false;
catch(IOException e)
return false;
This is used to check whether any of our critical systems have gone down, the boolean returned is used to determine what image and set of actions to do/display on the intranet site I'm developing.
The above code works fine, however testing it by giving it a fake ipaddress, i.e. one that doesn't exists( to act as a 'down' system) - the socket connection takes ages to conclude that it can't make a connection. This causes trouble by causing the page to display very very slowly.
Can anyone think of a way of improving this?
Any help would be very much appreciated!

The early bird may get the worm, but the second mouse gets the cheese.........<br /> <br />Sun Certified Programmer for Java 2 Platform<br />Sun Certified Web-Component Developer for J2EE Platform
Peter den Haan
Ranch Hand

Joined: Apr 20, 2000
Posts: 3252
This question has been answered in Sockets and Internet Protocols. Please do not post a question in more than one forum.
- Peter
I agree. Here's the link:
subject: Socket connections
It's not a secret anymore!