Symptoms
NMC: Modify client wizard generates a pop-up error "connecting to host failed: loaded plugin is not signed.The error is seen on the NMC client with NRE 8.0.14The error is not seen on the NMC client with JRE 8 update 301.
Cause
The plug-in error is due to the Java version installed on the client.
Resolution
Perform the following actions on the NMC server and clients:1. Go to the NRE "security" folder:
Linux: /opt/nre/java/latest/lib/securityWindows: C:\Program Files\NRE\java\jre#.#.#_###\lib\security
2. Make a backup copy of java.security.3. Edit java.security.
Change the following lines from
jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
DSA keySize < 1024, include jdk.disabled.namedCurves, \
SHA1 denyAfter 2019-01-01
To:
# jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
# DSA keySize < 1024, include jdk.disabled.namedCurves, \
# SHA1 denyAfter 2019-01-01
NOTE: These fields have been commented out by using #.
4. Save the changes.5. Clear the Java cache on the NMC client.
NOTE: To clear the NRE Java cache open C:\Program Files\NRE\java\jre#.#.#_###\bin\javacpl.exe.
6. Launch the NMC and attempt using the "modify client wizard".
