Why bother with Windows Server backup in large environments? Even in big companies, having a backup of your Active Directory forest can be challenging: do you know what you must backup? do you know if the backup infrastructure and software allows you to backup what you need do you know […]
Sudden slow SQL symptom If you have installed SQL Server on a Windows 2008 R2 OS, you may receive calls from your users complaining about slow SQL. All your queries are becoming suddenly slow. THat’s a standard rant. But what is strange is it doesn’t affect user stored procedures only. […]
In late august, Elias Khnaser (re) ran a webinar for Pluralsight about the differences between AWS and Microsoft Azure. How cloud providers are now ranked were among the various pieces of information he gave during an hour. These 2 slides about the cloud landscape changed in less than 4 years. […]
There is a lot of documentation about AD FS 3.0, the Active Directory Federation Services that comes with Windows 2012 R2. For example, this series of tutorials walks you through the different steps to build a lab. However almost all articles assume that you have a simple single domain forest […]
During good old Windows 2003 times, the Terminal Licensing Servers were published in the Active Directory using the Sites object and the entry TS-Enterprise-License-Server as explained here. Under WIndows 2008R2, the RDS Licensing role service registers a service connection point; however few documents tells you where to find this SCP […]
Starting with Windows Server 2012 R2, and as demonstrated there, you can create yourself your own multi-form factor authentication in any .NET language that can create interfaces. Once you have created your DLL assembly, you must register it with Register-AdfsAuthenticationProvider. However the syntax for the TypeName argument is somewhat cumbersome. […]
If you are managing Sharepoint or Active Directory Federation Services, you sometimes have to register DLLs in the GAC without your supplier providing you a nice MSI installer to do so. Once solution would be use gacutil but it is now a .Net Framework Utility, and you may not want […]
Need to have a process listening on some port to test your firewall rules? Instead of using a netcat or ncat, here’s a very simple Powershell implementation of this ncat/netcat feature:
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function Wait-OnPort ($port) { $endpoint = new-object System.Net.IPEndPoint ([ipaddress]::any, $port) $listener = new-object System.Net.Sockets.TcpListener $endpoint $listener.start() $listener.AcceptTcpClient() # wait until somebody connect $listener.stop() } |
If you need a TCP Client, the code is very straightforward:
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$t = New-Object System.Net.Sockets.TcpClient("servernameorIPAddress",port) #port is not open, you get an exception New-Object : Exception calling ".ctor" with "2" argument(s): "No connection could be made because the target machine actively refused it 10.254.212.81:666" At line:1 char:16 + $t = New-Object <<<< System.Net.Sockets.TcpClient("servernameorIPAddress",port) + CategoryInfo : InvalidOperation: (:) [New-Object], MethodInvocationException + FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand #port is open, you get nothing $t.Close() |
If you use WebDeploy on your IIS Servers, and have trouble to publish web sites on them using the WebDeploy tool, you may have received errors such as: Could not connect to the remote computer (“targetserver”). On the remote computer, make sure that Web Deploy is installed and that the […]
You are probably using those concepts without knowing: today let’s speak about URI differences. URLs: Uniform Resource Locator Most of us know what is an URL even they are very basic computer users: that’s a way to locate a file somewhere on the network. Everybody will speak about http:// and […]
