Many enterprise IT systems at NPS make use of SSL certificates issued by the DoD. If your browser doesn't trust them, you may run into issues. Reinstalling the certs is always a good step in troubleshooting as well. Get started with installing the latest certificates by reviewing the tutorials below.

Is your CAC reader Mac friendly? Visit the USB Readers page to verify the CAC reader you have is.

InstallRoot Tool

The InstallRoot application is the simplest and most straightforward way to install all DOD certificates in your windows operating system, and supports Internet Explorer, Chrome, Firefox, and Java.

• • Select your corresponding computer architecture type from the links below: (NIPR Windows Installer, for SIPR certificates access DISA's site directly from a SIPR machine)
  • Once downloaded, install the file and run InstallRoot.
  • Install required certificates. A more detailed explanation with pictures is shown below.
  • Restart your browsers for the changes to take effect (all windows!).
    • In some cases you may have to clear the cache of the browser you are using.

Download the Install Root Software here:

1. Installing R on Mac OSX. Installing R on Mac OS is similar to Windows. Once again, The easiest way is to install it through CRAN by going to the CRAN downloads page and following the links as shown in the video below: The next step is to click on the 'R-3.6.2.pkg' (or newer version) file to begin the installation.
2. Firstly, get the root certificate. Then follow the steps below: Procedures: Double click the certificate file (with '.cer' extension) Choose 'System' from the keychain option.Then press 'OK'When the following window pops-up, click the 'Always Trust' button.Then you.
3. In order for your machine to recognize your CAC certificates and DoD websites as trusted, run the InstallRoot utility (32-bit, 64-bit or Non Administrator) to install the DoD CA certificates on Microsoft operating systems. If you’re running an alternate operating system such as Mac OS or Linux, you can import certificates from the PKCS 7 bundle.

Step 1:

Double-click the installer and click next.

Step 2:

Select the desired folder to install to or continue by clicking next.

Step 3:

Leave the defaults checked and click next.

Step 4:

After the installation finished click run InstallRoot.

Step 5*:

If Firefox, Java, or both programs are installed on your computer you will be asked if you would like to install the certificates in their respective certificate stores. Select yes if you are accessing DOD sites that use Java or if you access DOD sites with Firefox.

Step 6:

Close the Quick Start pop up.

Step 7:

Click Install Certificates in the top left corner. If you click the drop down next to the red ribbon you should see a green check mark next to the certificates.

More information on certificates and other tools can be found via DISA.

Download the latest DoD root certificates here:DoD RootCerts file (CAC required).

1. Open the Keychain Access application if it's not already running.
2. Drag certificates in the folder to the login section of the Keychain Access.
3. Click 'Add' to pop-up adding all certificates to login keychain (must click add to every certificate.).
4. Once all certificates have been added double click DoD Root CA 3 and 4 certificates, select Trust and change 'When using this certificate' from 'User System Defaults' to 'Always Trust'.
5. Confirm your changes by entering an administrative password.
   
   

Notes:

There should be 55 DoD certs available in the Mac Keychain Access Utility.

R is one of the main languages used for data science today. As such, it is natural that any beginner may want to know how to get started with this powerful language regardless of the operating system running on a computer. Thus, this tutorial will address this by covering the installation process of R on Windows 10, Mac OSX, and Ubuntu Linux.

Furthermore, it will also go over the installation of RStudio, which is an IDE (Integrated Development Environment) that makes R easier to use as well as how to install R packages such as dplyr or ggplot2.

Installing R on Windows 10

Install Root For Mac

Installing R on Windows 10 is very straightforward. The easiest way is to install it through CRAN, which stands for The Comprehensive R Archive Network. Just visit the CRAN downloads page and follow the links as shown in the video below:

Once the download is finished, you will obtain a file named 'R-3.6.3-win.exe' or similar depending on the version of R that you download. The links shown in the video above will take you to the most recent version. To finish installing R on your computer, all that is left to do is to run the .exe file. Most of the time, you will likely want to go with the defaults, so click the button 'Next' until the process is complete, as shown in the video below. Note that, even though I do not do so, you can add desktop or quick start shortcuts during the process.

Installing RStudio

Once R is installed, you can proceed to install the RStudio IDE to have a much-improved environment to work in your R scripts. It includes a console that supports direct code execution and tools for plotting and keeping track of your variables in the workspace, among other features. The installation process is very straightforward, as well. Simply go to the RStudio downloads page and follow the video below:

Once the download is complete, you will get a file named 'RStudio-1.2.5033.exe' or similar. Again this will be dependent on the version. To complete the installation, it is as easy as before. Just run the previously mentioned .exe file with the default settings by clicking 'Next', and wait until the installation finishes. Bear in mind that RStudio requires that R is installed beforehand.

Installing Packages in R

Installing Root Mac

Now you have base R installed on your system and a nice IDE to begin your R programming journey. However, base R is rather limited in the things that it can do, which is why we have R packages such as dplyr for enhanced,'ggplot2'))

The second is shown in the video below. It is an easy-to-use graphical interface built into RStudio from which you can search and download any R package available on CRAN.

Installing R on Mac OSX

Installing R on Mac OS is similar to Windows. Once again, The easiest way is to install it through CRAN by going to the CRAN downloads page and following the links as shown in the video below:

The next step is to click on the 'R-3.6.2.pkg' (or newer version) file to begin the installation. You can leave the default options as is just like for Windows.

Installing RStudio and R packages

This process is essentially the same as in Windows. To download RStudio, go to the RStudio downloads page and get the .dmg for Mac OS, as shown in the image below. Remember to keep default installation options.

Once you open RStudio, installing packages is the same as with Windows. You can use either install.packages(c('dplyr','ggplot2')) in the console or go ahead and use the graphical interface shown in the video under the installing packages in R subsection of this tutorial.

Installing R on Ubuntu 19.04/18.04/16.04

Installing R on Ubuntu maybe a little bit more tricky for those unused to working in the command line. However, it is perhaps just as easy as with Windows or Mac OS. Before you start, make sure to have root access in order to use sudo.

Mac Root User

As it is common, prior to installing R, let us update the system package index and upgrade all our installed packages using the following two commands:

sudo apt update

sudo apt -y upgrade

After that, all that you have to do is run the following in the command line to install base R.

sudo apt -y install r-base

Installing RStudio and R Packages

Once base R is installed, you can go ahead and install RStudio. For that we are going to head over again to the RStudio downloads page and download the .deb file for our Ubuntu version as shown in the image below:

Once you have the .deb file, all that is left is to navigate to your downloads folder using cd Downloads in the command line and then run the following command to begin the installation process:

sudo dpkg -i rstudio-1.2.5033-amd64.deb

You may encounter some dependency problems that may cause your first try to install RStudio to fail, but this has an easy fix. Just run the following command and try again:

sudo apt -f install

When the process finishes, you will have an RStudio shortcut in your Ubuntu app list, but you will also be able to start RStudio by typing rstudio in the command line.

Once you open RStudio, installing packages can be done in the exact same manner as with Windows or Mac OS. Either by typing install.packages(c('dplyr','ggplot2')) in the console or using the graphical interface shown in the video under the installing packages in R subsection of this tutorial

Conclusion

I hope that this tutorial will help those of you eager to dive into the world of R programming regardless of your operating system choice. If you are looking to start learning R as such after installing it, please refer to the Introduction to R course, which will guide you through the basics of R programming. Keep learning; the sky is the limit.