Category Archives: Operating Systems

RDP /admin switch

Command line parameters for Remote Desktop Connection


/admin connects you to the RDP session as admin overruling all warnings. So if you get the “limit reached” connection error and can’t connect (something along that message) you can use the /admin switch to overrule it and connect anyway.



Is used for administration of a Remote Desktop Session Host server. In this version of Remote Desktop Connection, if the Remote Desktop Session Host role service is installed on the remote computer, running mstsc /admin will do the following (for the current connection only):

  • Disable Remote Desktop Services client access licensing
  • Disable time zone redirection
  • Disable RD Connection Broker redirection
  • Disable Remote Desktop Easy Print

/admin also does the following on connections to Windows Server 2008 R2 with the RD Session Host role service installed:

  • Disables Plug and Play device redirection for this connection only.
  • Changes the remote session theme to Windows Classic View (if it’s available) for this connection only.

To connect to a remote computer with the RD Session Host role service installed, follow these steps:

  1. Open the Command Prompt window by clicking the Start button Picture of the Start button. In the search box, type Command Prompt, and then, in the list of results, click Command Prompt.
  2. Type mstsc /v:server /admin.

How to Disable Dynamic DNS Updates on Windows Systems

Why you should consider disabling the Dynamic DNS Updates service

Dynamic DNS

Microsoft Windows operating systems support a feature that dynamically updates the mappings of domain names to associated IP addresses assigned to hosts by DHCP servers. This automatic updating, called Dynamic DNS Updates service, reduces the administrative overhead associated with manually administering DNS records of network hosts.

While this service can reduce administrative overhead, it also can, and does, have deleterious effects on the larger Internet by leaking traffic regarding private IP addresses that should never leave the local area network.

Further info here