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ConsoleRSS

ESX(i) Host Console Administration and Tips

Run esxcli Command in a Web Browser: Another ESXi Hack

In my recent consulting projects, I really got into a lot of scripting either command lines or Python with ESXi management. As I mentioned the hidden HTML formatter in esxcli command, you may have speculated what could the usage. The answer is simple: Web ...
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Hidden esxcli Command Output Formats You Probably Don’t Know

Besides the vim-cmd command I covered earlier, there is another powerful set of commands in ESXi – esxcli. As you can find from the help of the command, it covers 10 namespaces and drills down several layers down. The typical operations with the namespace ...
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Powerful Hacks With ESXi vim-cmd Command, Together With Shell Commands

If you have read my previous article on the vim-cmd, you may have realized how handy it is, especially when it comes to manage virtual machines. There is however a pretty challenging problem to use it – for most commands for a virtual machine, it requires ...
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Allowing SSH access to ESXi/ESX hosts with public/private key authentication (1002866)

This article provides steps to allow SSH access to ESXi/ESX hosts with public/private key authentication rather than with username/password authentication.

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Hacking ESXi For SSH Login Without Password

As a powerful virtualization server, ESXi has a built-in SSH server even though it’s not enabled by default. That is what most system adminstrators use to remotely run commands there. ESXi also has a built-in SSH client so that you can ssh to other server ...
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VMware ESXi vim-cmd Command: A Quick Tutorial

Command lines are very important for system administrors when it comes to automation. Although GUIs are more likely (not always as I’ve seen too many bad ones) to be more intuitive and easier to get started with, sooner or later administrators will use co ...
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Tools That Enhance PuTTY Experience

PuTTY is a very popular tool on Windows for connecting to remote server using SSH. As I used it a lot recently, I tried several tools that enhance the user experience. You may be interested in them too.

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How to check driver versions in ESXi (fnic, etc.)

I recently encountered some strange I/O issues with guests running on ESXi 5.0 U2 in a Cisco UCS environment that I have inherited.  While investigating the root cause it was brought to our attention that some of our UCS drivers might be out of date. ...
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vSphere 5.5 introduces new, simpler UNMAP command

Welcome news for anyone using array-based thin provisioning with vSphere, VMware has introduced a new and simpler UNMAP command that can be invoke from esxcli with vSphere Platform 5.5.  This will help 3PAR customers more easily perform the UNMAP pro ...
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Forcing a link state up or down for a vmnic interface on ESXi 5.x (2006074)

When troubleshooting network connectivity, most commonly when working with improperly configured port channels, on a vSwitch, VMware vDS, or Cisco Nexus 1000v vDS, you have to shut down the uplink ports on the upstream physical switches for testing. &nbs ...
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Practical commands for the ESXi console

For troubleshooting on ESX(i), I always end up in the console even on ESXi 5.x. There are a number of practical commands that I can usually remember, but not always.

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Quick Tip: How to Change ESXi SSH Prompt

This quick tip was motivated by a comment from Jason Nash where he wished the hostname of an ESXi host is automatically displayed on the SSH prompt when logging into the system. Traditionally, systems providing SSH access will default the SSH prompt to us ...
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Getting started with vscsiStats

I have had a few occasions recently to start using vscsiStats. For those of you who may be unfamiliar, this is a great tool for virtual machine disk I/O workload characterization. Have you ever wondered about the most common I/O size generated by the Gues ...
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Manually installing or uninstalling the VMware vCloud Director 1.x host agent on an ESXi host (2003486)

This article provides information on manually installing/uninstalling the vCloud Director host agent on an ESXi host.   You may want to manually install/uninstall the vCloud Director host agent on an ESXi host in some troubleshooting scenarios ...
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How to – use vmkping to verify Jumbo Frames

You have configured Jumbo Frames in your VMware infrastructure and want to verify if everything is working well? No problem – you can do this with the command vmkping. But you should take care how to use this command.

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