Telnet is a quite useful connecitivity verification tool, especially during the system set up or troubleshooting. For some reason, mostly security concern, this feature is disabled since Windows Server 2008. But when you want a quick check, it’s really a pain to open the Server Manager and click, click, click… Fortunately we have PowerShell. So here is the one-line command to turn it on:
And another command to turn it off, before you log-off:
Recently I’ve been playing around with the new Hyper-V Nested Virtualization feature within Windows 10 (build 10565 and greater) and Windows Server 2016. It is pretty cool to be able to creat…
Source: Install a VMWare ESXi 6.0 Hypervisor in a Hyper-V VM
Classic, a.k.a. Service Management Model, ASM:
Resource Manager, ARM:
I should have put this handy long time ago. There is situation that we need to know if a special port on a server is listening, then we can see if need to open firewall, etc. So the command netstat is our friend.
Simple way to use netstat is:
>netstat –ano | more
It will show all the listening ports in numerical form, and the process ID that is listening.
Another way is use find:
>netstat –an | find “:3389”
TCP 0.0.0.0:1367 0.0.0.0:0 LISTENING
I will add some Linux command later.
Azure Cloud Service Role is classic, old style, one of those you won’t see updated counterpart in new Azure Resource Manager (ARM). In Azure, a Cloud Service Role is a collection of managed, load-balanced, Platform-as-a-Service (PaaS) virtual machines that work together to perform common tasks. Cloud Service Roles are managed by Azure fabric controller and provide the ultimate combination of scalability, control, and customization.
Web Role and Worker Role are under Cloud services (classic).
Web Role is a Cloud Service role in Azure that is configured and customized to run web applications developed on programming languages / technologies that are supported by Internet Information Services (IIS), such as ASP.NET, PHP, Windows Communication Foundation and Fast CGI.
Worker Role is any role in Azure that runs applications and services level tasks, which generally do not require IIS. In Worker Roles, IIS is not installed by default. They are mainly used to perform supporting background processes along with Web Roles and do tasks such as automatically compressing uploaded images, run scripts when something changes in database, get new messages from queue and process and more.
Differences between Web and Worker Roles – The main difference between the two is that a Web Role support and runs Internet Information Services (IIS), while an instance of a Worker Role does not.
Have the new BlackBerry Classic, a.k.a. Q20, for almost four months. It has personal space and work space, quite isolated to each other. The trouble I discovered earlier is that all screenshots go to work space so they are not easy to share in the social media apps, which can only install in the personal space.
Since last week, I saw a more serious problem. When it connected to a Windows machine, the flash drive that used to connect to and could be seen in Windows no longer worked. Windows could briefly show the used and free space of it, but no folder can be opened. Neither my home desktop or work laptop was working, so I tried not to think this is some restriction put on from BES recently. Even worse, this morning I found none of the MP3 music in BlackBerry was working – the player could not recognize the file format although it knew the suffix of the files.
One thing I tried and it worked is the very old trick – Reboot.
Mobile device also need to reboot once a while, even BlackBerry 10 or Apple iOS. Lesson learned.
This workaround using the PowerShell, seems fancier than the dozens of click I just did.
One of our clients had recently configured Remote Desktop Services on a Windows Server 2012 R2 OS. Since it was a small infrastructure, all the remote desktop roles were installed on the single ser…
Source: Error “The remote session was disconnected because there are no Remote Desktop License Servers available to provide a license” !!