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Article Number: 000202925

Dell VNX: Unable to connect to Unisphere GUI after Java update (User Correctable)

Summary: After updating Java to latest version, Unisphere may stop connecting properly.

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Article Content

Symptoms

Java starts up but the Unisphere login window is never shown.

Cause

Oracle changed Java to disable TLSv1 and TLSv1.1 by default. Both algorithms are still required by VNX Unisphere to properly open its GUI. This issue has first been observed on Java version 1.8.0_291, but it may also occur with other versions. 

Resolution

Steps to re-enable TLSv1 and TLSv1.1:

1. Go to the Java path "lib\security" folder (eg. "C:\Program Files (x86)\Java\jre1.8.0_291\lib\security").

2. Open file java.security with admin rights.

3. Search for this parameter jdk.tls.disabledAlgorithms

4. Edit line to remove TLSv1 and TLSv1.1

    Before
    jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA

    After
    jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA

5. Save file.

6. Clear browser's cache and cookies.

7. Relaunch browser and try opening Unisphere again. It should work fine.

Article Properties

Affected Product

VNX/VNXe, VNX1 Series, VNX2 Series

Product

VNX5100, VNX5200, VNX5300, VNX5400, VNX5500, VNX5600, VNX5700, VNX5800, VNX7500, VNX7600, VNX8000

Last Published Date

05 Jan 2023

Version

2

Article Type

Solution

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