Hi all,
 I called an external webservices using visualforce with a button click but iam getting the following error.

System.CalloutException: Read timed out

Class.WebServ.SetbasicAuthCallout: line 30, column 20
External entry point 

 code

<apex:page sidebar="false" controller="WebServ"> <apex:form > <h1>Synchronize Salesforce with MySQL </h1> <br/> <br/><b>Sync From Salesforce to MySQL</b> <br/> <br/> <apex:outputlink value="http://localhost/crm/accounts_mysql_tutorial.php"> Account</apex:outputlink> <apex:commandButton action= "{!SetbasicAuthCallout}" value="Account"/> <apex:outputText value="{!Details}"></apex:outputText> </apex:form> </apex:page>

public class WebServ { //The following example illustrates how you can use an authorization header with a request, and handle the response: public String getDetails() { // Get the XML document from the external server Http http = new Http(); HttpRequest req = new HttpRequest(); req.setEndpoint('http://localhost'); req.setMethod('GET'); HttpResponse res = http.send(req); // Log the XML content System.debug(res.getBody()); return res.getBody(); } public void SetbasicAuthCallout(){ HttpRequest req = new HttpRequest(); req.setEndpoint('http://192.168.1.50/crm/accounts_mysql_tutorial.php'); req.setMethod('GET'); // Specify the required user name and password to access the endpoint // As well as the header and header information //String username = 'suganya_@gmail.com'; //String password = 'suganya'; //Blob headerValue = Blob.valueOf('username:password'); //String authorizationHeader = 'BASIC ' + //EncodingUtil.base64Encode(headerValue); //req.setHeader('Authorization', authorizationHeader); // Create a new http object to send the request object // A response object is generated as a result of the request Http http = new Http(); HTTPResponse res = http.send(req); System.debug(res.getBody()); } }

Plz guide me with the proceeding steps.Thanks in advance.