How to remove ARP cache entry from ESXi 5.5

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There doesn’t appear to be a way to completely clear the arp cache of ESXi however you can remove specific entries one by one

Examples of command usage from VMWare host CLI:

esxcli network ip neighbor remove -a 10.1.1.250 -v 6

esxcli network ip neighbor remove -a 10.1.1.250 -v 4

-v is the IP version, ipv4 or ipv6

 

Migrate SBS 2008 to Windows 2012

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Issue: You have an existing SBS 2008 environment and you need to migrate to Windows 2012.  In addition, you may be migrating the built-in Exchange 2007 instance to Exchange 2013 or to Office 365. Purpose: I will provide a high level overview of the options and process and then link to more granular steps  for the solutions.  I will continue to update this as I have time including additional steps. Key questions that determine decisions: How many end users do you have? Do you want to: A) Read more [...]

prevent CHKDSK checking disk volume at boot

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Issue: You need to disable CHKDSK from running on a volume at boot if it detects a dirty bit. Background: at boot time, CHKDSK performs a default boot-time chk.  If a 'dirty bit' is found, CHKDSK runs a full scan CHKDSK of the disk during boot. Solution: Several articles suggest editing the registry, however the best way to gracefully update the setting and corresponding registry key is to issue the following command prompt command which will in this example disable auto check (autochk) from Read more [...]

Exchange 2013 CU12

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Exchange 2013 CU12 came out in May 2016 and is the most recent release of Exchange 2013.  Note: Cumulative Update 10 or higher is required to co-exist with Exchange 2016.  Upgrading to CU12 may require an AD schema upgrade depending on your current version of Exchange 2013. For convenience, here is the link to download CU12. Instructions to Upgrade an existing Exchange 2013 deployment to CU12. Remember on new deployments, you can deploy Exchange 2013 from the CU12 Rollup itself, Read more [...]

How to disable Auto Shrink all SQL databases

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You can use the following code in query generated to disable auto shrink on all SQL databases.  This code will generate the actual scripts needed, which you then execute.  See the comment section above the code snipped for instructions. /* This will script output the needed commands for you */ /* Execute it in query analyzer, which will generates all the commands */ /* do a Select All, Copy, then Paste into query analyzer and execute */ SELECT 'ALTER DATABASE ' + QUOTENAME(name) + ' SET AUTO_SHRINK Read more [...]