This week's book giveaway is in the Java 8 forum.
We're giving away four copies of Java 8 in Action and have Raoul-Gabriel Urma, Mario Fusco, and Alan Mycroft on-line!
See this thread for details.
The moose likes Servlets and the fly likes java.net.UnknownHostException Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of Java 8 in Action this week in the Java 8 forum!
JavaRanch » Java Forums » Java » Servlets
Bookmark "java.net.UnknownHostException" Watch "java.net.UnknownHostException" New topic
Author

java.net.UnknownHostException

Ken Pullin
Ranch Hand

Joined: Jan 29, 2001
Posts: 43
Hi - I have a servlet that tries to make a HttpURLConnection to a website outside of my domain. Basically we send some info to another website so that the website can put a Cookie on the user's machine and then redirect back to our website(we use this to brand our site when user's come through a portal). anyway, this works in our QA and stage environment but not in production. Our environment consists of Weblogic 5.1 and Netscape on Unix (Sun Solaris) machines. We added the url to the host file in the production environment, but everytime we try to connect(which we do first to make sure the other website is "up"), our code throws a UnknownHostException - any clues?
Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15665
    
  15

I'd check to make sure that the failing server has domain name server connections and that there's no firewall blocking them.


Customer surveys are for companies who didn't pay proper attention to begin with.
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: java.net.UnknownHostException
 
Similar Threads
java.net.UnknownHostException
Domain Authentication
wildcard for tomcat-users.xml users
sun app server 81. vs 8.2 for sun studio creator2
Project directory structure that facilitates all kinds of developer testing