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How to get the checksum for a file on Windows

If you're running Windows and ever want to know the md5 or sha-1 checksum for a file you have, did you know there's a built-in command to get it? From the Windows command prompt, run this to get the sha-1 checksum:

certutil -hashfile [path\]filename

or to get the md5, just add that as an argument:

certutil -hashfile [path\]filename MD5

The tool is built into Windows 7 and above, and Server 2008 and above (at least). Tools like it are included in other OS's, but I'm sharing the above for Windows users.

Regardless of what OS you use, for more on why knowing the checksum can be useful (and why comparing file sizes instead may not be enough), and especially with regard to some interesting info about installers for CF2016 and CF11, do read on.

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I'll be speaking at 3 upcoming events, first on Tomcat then on CF and FR

I've been negligent to get a post out about this, and now the events are upon us. I'll be speaking in coming weeks at 3 events, about my favor topics: troubleshooting and monitoring, both CF/Lucee and Tomcat, as well as CF2018 hidden gems. Here are their titles, descriptions, and links to the events:

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Keeping your FusionReactor updated

If you are using FusionReactor (the monitor for CF/Lucee/Tomcat and other Java servers), are you on the latest release, or at least a relatively recent one? You really should be, as new features are added all the time (I especially love the new "archived metrics" added in 7.2). I've written in the past about various FusionReactor updates. It's on 7.4.1 as of this writing.

In this post, I want to encourage you to update as well as show you how to do it (and a mistake you could make that would leave you NOT completely updated because you missed a step.)

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