Searching for PuTTy using google will turn up a number of sites. I chose the first link, because I recognize it - having downloaded files from this site previously.
The site putty.org is relatively new.
You can download files one at a time, or in one convenient "zip" file. I choose the "zip" file.
You can either open (run) the file, or save it. I always save it, in order to check for viruses. I am paranoid ...
You will notice that I have WinZip installed. This is a "shareware" as opposed to "freeware" program. Shareware programs expect you to purchase them for a nominal cost (after trial period is up).
As is customary, I have downloaded the file in my default directory C:\Downloads
If you "right-click" on the file, you will see that the program "7-zip" has been installed as one of the options to open the file. I choose the option to "extract files"
I extract to the directory "C:\PuTTy" rather than "C:\Program Files\PuTTy" (for no particular reason).
Since I have installed the files previously, it asks me whether to overwrite my previously installed files. I respond "Yes to All".
Examining the installation directory, you will see a number of programs. "PUTTY.EXE" is the one we want.
I usually make a shortcut on the desktop (if this is not an installation option). You can do this by right-clicking the icon, and selecting "Send To->Desktop".
Create a new session by typing in "calclab1.math.tamu.edu" for the Host Name. Leave port 22 (default) unchanged. Make sure connection type SSH is selected.
You should also make sure the SSH Protocol 2 is selected.
You can also change the background and foreground colors (I use white as background, and black as foreground).
I also like blue cursors.
When you are done, remember to save the session (I saved the session as calclab1).
When you open up PuTTy in the future, all you have to do is double-click calclab1 in the saved sessions section.
Login using your NetID and password.
You will get the message of the day, and other information. You will be placed in your "home directory".
My home directory is "/u/fac/mpilant". Yours will be something different.
You also will have, or will need to create, a special directory called the "public_html" directory.
If you do not have a public_html directory (note the underscore "_"!), you will need to create one by executing the commands below.
When this is completed, you will be ready to begin to create your own webpages on the calclab math server!