Add slides/ssh_intro_2.md

2020/2020-02-15_gnuLinuxCourse/slides/ssh_intro_2.md

+# Accessing Computers over Network (Securely)
+
+* ... programs have bugs
+
+<!-- .element: class="fragment" -->
+* Bugs in communicating program enable [backdoors][1] and other [exploits][2]
+
+<!-- .element: class="fragment" -->
+* A computer on a public networks with ports unprotected is a recipe for disaster
+
+<!-- .element: class="fragment" -->
+* Which is why a computer from a previous point is never exposed to public
+	... unless it's a [honeypot][3]
+
+	<!-- .element: class="fragment" -->
+	
+<!-- .element: class="fragment" -->
+
+[1]: https://www.techrepublic.com/article/is-the-intel-management-engine-a-backdoor/
+[2]: https://en.wikipedia.org/wiki/Heartbleed
+[3]: https://en.wikipedia.org/wiki/Honeypot_(computing)