PowerShell - 2018

Remote PowerShell Core session to a Linux host from Windows machine

Remote sessions using OpenSSH from Windows to Linux host
 
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Starting from January 2018, Microsft has made PowerShell Core 6, a cross-platform tool available not only to Windows users which was the case so far with previous versions, but to Linux and Mac users as well. Since it was tool for Windows only, it had it's own ways for remoting using WinRM unlike Linux operating systems which primarily rely on SSH. Windows is great for editing and development, I find it really comfortable to work on with so many tools and platform available ... read more

Setting IP address and domain filtering in IIS using PowerShell script

Restricting and allowing traffic to web application through IIS using PowerShell
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Starting from IIS 7.0 Microsoft introduced IP and Domain restrictions feature as a part of IIS setup. However, if you do not have this feature installed on your IIS you can easily install it through windows features adding steps which are pretty much same for each Windows version (https://docs.microsoft.com/en-us/iis/configuration/system.webserver/security/ipsecurity/add) or simply by using WebPlatform Installer. Just run WebPlatform Installer and search for IP and Domain restrictions in search box ... read more

Optimize PNG images for internet using pngcrush and PowerShell

Reduce size of existing PNG images without loosing quality with pngcrush
 
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Imagine a case where you have an existing website which is running for the past few years. You decided to run a Google PageSpeed insights on couple of pages and you realized that your PNG images on the pages are not optimized for Internet. Now this can be solved thanks to a lot of online PNG image optimizers, but considering the number of the files you might have over the years of website running it can be matter of days, even maybe weeks to optimize all of them. This was my case and I could not afford myself that much time. ... read more

Minify CSS and JavaScript files with PowerShell script

JavaScript and CSS file optimization with PowerShell script
 
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Minification of Cascade Style Sheet (CSS) and Java Script (JS) should be on a TODO list for every web application. The minification of CSS and JS can be easily one on the runtime with ASP.NET bundling which is build in in ASP.NET framework, but in case of distributing your resource files over CDN you cannot use the runtime minification. You physical files need to be minified ... read more

Merge folders with Windows PowerShell script

Detect changes and merge folders and files with PowerShell script
 
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When deploying application to specific location it is often required to deploy only few files and not the whole deployment package. For example, if you changed only single static image file in your ASP.NET WebApplication, there is no reason to overwrite bin folder content and cause WebApplication on IIS to restart. ... read more

Sending email with Gmail account using PowerShell script

Send email with your Gmail account login with PowerShell script
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Sending email after and even before a long running PowerShell script is a logical thing to do to notify users which are responsible for taking actions for the specific operation. PowerShell starting from version 3.0 has build in cmdlet Send-MailMessage for sending emails. ... read more

Use PowerShell to install SSL certificate on IIS

Importing PFX SSL certificate to IIS with PowerShell script
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Since Google announced HTTPS as ranking signal most of the websites now days are switching to secured communication via SSL certificates. Even I switched my website to HTTPS secured connection to follow up with this new trend. Using certificate on the website is related to domain binding, but even before we setup the domain binding for the website, we need to import the certificate to IIS ... read more

Get .NET Framework version installed on Windows using PowerShell

How to find out installed version of .NET Framework with PowerShell
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Finding out installed .NET Framework version on the host Windows OS is not an everyday job, but when it comes to deployments of the .NET application it is needed to check if the host supports targeting .NET Framework version. Starting from .NET Framework 4.5, Microsoft is storing .NET Framework version as a key in registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\Release ... read more

Managing Windows Scheduled Tasks with Windows PowerShell

List, create and update Windows Scheduled Tasks with PowerShell
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Microsoft Windows Task Scheduler component is a standard part of Microsoft Windows operating system since Windows98. It allows schedulex execution of programs or scripts at specific pre-defined time or recurrent time interval. Repetitive creating and updating Windows Scheduled Tasks manually using Windows built in manager can be annoying ... read more

Complex parameters in Windows PowerShell scripting

Passing and handling parameter in Windows PowerShell script
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Like in any other language, in PowerShell we also want to reuse our code and execute same set of operations with different parameters. PowerShell has great support for parameters which can be used in PowerShell script invocation.If you want your script to accept parameters you need to declare them in the script file ... read more

Setting ASP.NET application on IIS always running with PowerShell

Switch off AppPool timeout with PowerShell script
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When creating new website with new application pool, bu default IIS sets your application pool in a way to save resources when inactive. This is because it does not want to run your website all the time if is there is no activity on it and keep using resources on the host for idle worker processes (w3wp.exe). This is the reason you might experience slow response when opening your website URL from time to time especially if your website has low traffic. ... read more

Automated clean up and archive of log files with PowerShell 5

Archiving old log files with PowerShell 5 and Windows Scheduled Tasks
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Depending on the application architecture, your Windows virtual machine might have one or more applications or components of a single solution. Those might be WebApi services, Web Applications or Windows applications. Any of these components may generate logs which are important for diagnostics and tracking down events ... read more

Clean up IIS log files from web server using PowerShell

Avoid low disk space because of IIS logs with PowerShell Scheduled Task
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Microsoft IIS Server is by default logging every request that reaches it. This can be pretty useful for tracking down the issue which my occur over time, but it is also pilling up log files on server's disk which eventually can cause low disk space. You an always clean up these files manually, but wouldn't it be nice if server does that for you? ... read more

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