When you connect with the SSIM Client Console you receive the error "Host name specified can not be found"

Products

• Security Information Manager

Issue/Introduction

When you connect with the SSIM Client Console you receive the error "Host name specified can not be found".

Symptoms
When you click Details on the error it displays:

Host name specified can not be found'
Details:
java.net.UnknownHostException: sima.apci.com
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at com.sun.net.ssl.internal.www.protocol.https.HttpsURLConnectionOldImpl.connect(Unknown Source)
at com.symantec.sim.app.SimApplication.validateIP(SimApplication.java:804)
at com.symantec.sim.app.SimApplication$2.construct(SimApplication.java:685)
at com.symantec.sim.ui.util.SwingWorker$2.run(SwingWorker.java:169)
at java.lang.Thread.run(Unknown Source)

 

Cause

The computer the SSIM Client Console is installed on cannot resolve the Symantec Security Information Managers (SSIM) hostname and there for fails to connect.

Resolution

To confirm this is a Domain Name Server (DNS) resolution problem, follow these steps:

Flush the DNS cache - This will ensure old and possibly incorrect DNS responses are not the problem.

Use nslookup to see if the computer can resolve the SSIM appliances hostname.

1. In a command window, at the prompt, type nslookup and press Enter.
2. At the prompt, type the hostname of the SSIM appliance and press Enter.

If no IP Address is returned, the DNS server was not able to answer the request.

To further test that this is a DNS resolution problem, add an entry for the SSIM appliance to the hosts file of the SSIM Client Console computer.

To add an entry to the hosts file:
 

1. Open the hosts file in notepad.
   The location of the hosts file is C:\Windows\System32\drivers\etc\
2. Place the cursor at the end of the last line and press Enter.
3. Type the IP Address of the SSIM appliance and press Tab.
4. Type the Hostname of the SSIM appliance.
5. On the File menu, click Save.
6. Close the hosts file.

Connect to the SSIM appliance. If you are able to connect to the SSIM appliance, the DNS resolution for the SSIM appliances hostname must be fixed.