Tag Archives: re-enable

Windows Server – Disk Performance Missing From Task Manager?

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7

KB ID 0001203 

Problem

If your machine is struggling, a good place to look first is the performance tab on ‘Task Manager’

Here you can see CPU and Memory Stats and how our network cards are performing, but wheres the disk stats?

Solution

Before you can see them you need to enable them, open a PowerShell, (or an administrative command window). and run the following command;

diskperf -y

 

Now re-open task manager and go to the performance tab and you can see the stats for the hard drives;

I can’t think why, but if you wanted to turn this off again issue the following command;

diskperf -n

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Dell DRAC 5 – ‘Error when reading from SSL socket Connection’

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KB ID 0001062 

Problem

Ages ago I did an article on how a Java update has stopped me getting access to the DRAC 5 controller on my Power Edge 2950. Well I had more problems this week trying to get on from my MAC.

Solution

The problem is, Java have pretty much blocked communications with SSLv3 (in light of the recent Poodle attack scares). Which is fair enough, but it’s not helping me get on my server that’s 50 miles away! The following procedure allows you to re-enable SSLv3 in Java (Tested on version 8 update 40). Obviously there is some security risks in doing so, this is as SSLv3 is exploitable, so best practice would be to just do this temporarily to get access then disable it again when no longer needed.</p?

1. You need to locate your java.security file, I’ve found paths all over the Internet to its location, the one that matters I found in the following locations;

MAC OSX: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/security/java.security

Windows: C:Program Files (x86)Javajre{version}libsecurityjava.security

Note: If Java/Apple monkey around with paths and you are looking at this in the future execute the following terminal command to find the file;

[box]find / -name ‘java.security‘ -print 2>/dev/null[/box]

2. Once located, edit the file and locate the line that reads;

[box]jdk.tls.disabledAlgorithms=SSLv3[/box]

MAC OSX Java.Security

Windows Java.Security

3. Simply remove SSLv3 from the end of the line and save the file. NOTE: With MAC OSX you will need to SUDO, to have the permissions to edit this file (see below).

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