Dell Remote Access Controller: Difference between revisions
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Dealing with Dell iDRACs is always fun. Here are some notes on how to use it. | |||
== Tasks == | == Tasks == | ||
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{{Navbox Hardware}} | ==Troubleshooting== | ||
Older iDRACs require Java. That's always fun. | |||
===Network connection has dropped=== | |||
[[File:IDRAC connection dropped.png|alt=iDRAC Network connection has been dropped|thumb|iDRAC Network connection has been dropped]]Install icedtea-web or the official JDK from oracle. Because the iDRAC uses RC4 for SSL/TLS, you will get an error "The viewer has terminated. Reason: The network connection has dropped." if you try to connect. To work around this, you will need to edit <code>/usr/java/jdk1.8.0_202-amd64/jre/lib/security/java.security</code> (change the java version as required) and edit <code>jdk.tls.disabledAlgorithms</code> to not include RC4. Save the file and try launching the java web start applet again.{{Highlight | |||
| code = 644 #jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, \ | |||
645 # EC keySize < 224, 3DES_EDE_CBC, anon, NULL | |||
646 jdk.tls.disabledAlgorithms=SSLv3, DES, MD5withRSA, DH keySize < 1024, \ | |||
647 EC keySize < 224, 3DES_EDE_CBC, anon, NULL | |||
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}}[[File:Java application blocked.png|alt=Java application blocked|thumb|Java application blocked]] | |||
===Java application blocked=== | |||
On an even older Dell iDRAC (version 2.2), when trying to launch the java web start application, I got an "Application Blocked by Java Security". | |||
To fix this, you need to open the Java security control panel by running <code>/usr/java/jdk1.8.0_202-amd64/jre/bin/ControlPanel</code>, go to the "Security" tab, and then click 'Edit Site List...'. Add your iDRAC's address into the exception list. For example, [http://ipmi-nn1/ http://ipmi-nn1:80] or [https://ipmi-nn1/ https://ipmi-nn1:443].{{Navbox Hardware}} | |||
[[Category:Hardware]] | [[Category:Hardware]] | ||
Revision as of 23:15, 21 January 2022
Dealing with Dell iDRACs is always fun. Here are some notes on how to use it.
Tasks
Access the serial console
Access RAC via SSH, then run:
$ console com2
Hit Ctrl - \ to exit.
Restart the server
$ racadm serveraction powercycle
Other actions include:
- powerdown to halt system
- powerup to start the system
- powercycle to stop and start the system
- powerstatus to display the system status (either ON or OFF)
- hardreset to force a power reset
Restart the remote access controller
$ racadm racreset soft
You may also choose to use a hard reset or force the reset with -f. Eg:
$ racadm racreset hard -f
Troubleshooting
Older iDRACs require Java. That's always fun.
Network connection has dropped
Install icedtea-web or the official JDK from oracle. Because the iDRAC uses RC4 for SSL/TLS, you will get an error "The viewer has terminated. Reason: The network connection has dropped." if you try to connect. To work around this, you will need to edit /usr/java/jdk1.8.0_202-amd64/jre/lib/security/java.security (change the java version as required) and edit jdk.tls.disabledAlgorithms to not include RC4. Save the file and try launching the java web start applet again.
644 #jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, DH keySize < 1024, \
645 # EC keySize < 224, 3DES_EDE_CBC, anon, NULL
646 jdk.tls.disabledAlgorithms=SSLv3, DES, MD5withRSA, DH keySize < 1024, \
647 EC keySize < 224, 3DES_EDE_CBC, anon, NULL
Java application blocked
On an even older Dell iDRAC (version 2.2), when trying to launch the java web start application, I got an "Application Blocked by Java Security".
To fix this, you need to open the Java security control panel by running /usr/java/jdk1.8.0_202-amd64/jre/bin/ControlPanel, go to the "Security" tab, and then click 'Edit Site List...'. Add your iDRAC's address into the exception list. For example, http://ipmi-nn1:80 or https://ipmi-nn1:443.