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lockdown mode / DCIU

Posted on 2013-12-03
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Last Modified: 2013-12-05
can enforcing lockdown mode /disabling DCUI create any support type issues? I.e. are there any cases whereby you may wish to perform troubleshooting directly on the host as opposed to using vCenter?

And secondly is it an easy thing to enable/disable - or quite a time consuming excercise? I was thinking it could be enabled (ld mode) by default and temporarily disabled if theres a genuine business case/then re-enabled after the work is done?
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Question by:pma111
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Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39692709
1. Yes it can cause issues, if you visit the console, to perform additional diagnostics, and the console is locked, you will not be able to access the server.

A bit like if there is no keyboard attached!

2. It is easy to enable and disable from vSphere vCenter Server.

VMware KB: Enabling or disabling Lockdown mode on an ESXi host
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by:pma111
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So is that the appraoch you follow, enable LD mode by default, disable as and when neccesary?
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If you believe you may have a security risk in your computer room or datacentre.

We see it enable, when you have servers in a shared datacentre location with many other companies servers.
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by:pma111
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But it would also save the impact if someone gained unauthorised access to the server room, i.e. break in? i,e,.defence in depth strategy, or are you pretty much toast if someone breaks in anyway?
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If someone broke in, they could remove the server!

and deal with access to the server later. (easily!)
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