Add directions for downloading VM.

Introduction/index.md

@@ -45,8 +45,60 @@ Software Environment
 
 This is a hands-on tutorial with several programming exercises.  We
 recommend using the virtual machine we've prepared that has all the
-necessary software that you need pre-installed. You can get the
-tutorial VM from the following link: [Frenetic Tutorial VM](https://cornell.box.com/frenetic-4-tutorial).
+necessary software that you need pre-installed.   To run this, you need the
+following open source software packages applicable for your host computer:
+
+- [VirtualBox](https://www.virtualbox.org/wiki/Downloads)
+
+- [Vagrant](http://www.vagrantup.com/downloads): automates the process of 
+  creating, provisioning, starting and stopping VM's.
+
+The Frenetic Tutorial VM runs Ubuntu 14.04 as the guest OS.  It has OCaml, OPAM, Mininet, 
+Wireshark, and Frenetic itself pre-installed.  The standard VIM and Nano editor packages
+are installed, but you can install your own through the normal Ubuntu package mechanisms.
+
+The Frenetic tutorial VM is stored in the Vagrant cloud, and installing it requires
+very little effort.   First start up a command prompt on your Windows, Linux, or Mac
+OS host PC.  Then:
+
+- Create a <code>frenetic-tutorial-vm</code> directory and change into it 
+- Issue a <code>vagrant init cr396/frenetic-tutorial</code>.  This will create a 
+  proper Vagrantfile in the directory.
+- Type <code>vagrant up</code>.  This command does the heavy lifting: downloading the
+  latest VM, installing it into Virtual Box, and creating the right credentials
+- Lastly, type <code>vagrant ssh</code> to login to a command prompt on your VM.  
+
+The output will look something like this:
+
+~~~ bash
+$ mkdir frenetic-tutorial-vm
+$ cd frenetic-tutorial-vm
+~/frenetic-tutorial-vm$ vagrant init cr396/frenetic-tutorial
+A `Vagrantfile` has been placed in this directory. You are now
+ready to `vagrant up` your first virtual environment! Please read
+the comments in the Vagrantfile as well as documentation on
+`vagrantup.com` for more information on using Vagrant.
+~/frenetic-tutorial-vm$ vagrant up
+Bringing machine 'default' up with 'virtualbox' provider...
+==> default: Box 'cr396/frenetic-tutorial' could not be found. Attempting to find and install...
+
+... lots of downloading and text
+
+~/frenetic-tutorial-vm$ vagrant ssh
+Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.16.0-30-generic x86_64)
+
+ * Documentation:  https://help.ubuntu.com/
+Last login: Sun Feb 28 11:57:22 2016 from 10.0.2.2
+vagrant@frenetic:~$ 
+~~~
+
+To use the VM:
+
+- To start, change into the <code>frenetic-tutorial-vm</code> directory and type <code>vagrant up</code> followed
+  by <code>vagrant ssh</code>.
+- To stop, simply exit from the Frenetic VM command prompt.  Back at your host command prompt, type <code>vagrant
+  halt</code>.  This step is optional - if you forget and shut down your host machine, the Frenetic VM will 
+  itself shut down cleanly beforehand.  But halting it will save you some memory and CPU cycles on the host.
 
 References
 ----------

NetKATFirewall/index.md

@@ -43,15 +43,15 @@ chapter. The ability to combine policies in a compositional way is one
 of the key benefits of NetKAT's language-based approach.
 
 Type this policy into a file `Firewall.ml` in the
-`netkat-tutorial-workspace` directory.
+`netkat-tutorial-solutions` directory.
 
 #### Testing
 
 To test your code, compile the firewall and start the controller in
 one terminal,
 
 ~~~
-$ netkat-build Firewall
+$ ./netkat-build Firewall
 $ ./Firewall.d.byte
 ~~~
 
@@ -107,7 +107,7 @@ let forwarding : policy =
 ~~~
 
 Type this policy into a file `Forwarding.ml` in the
-`netkat-tutorial-workspace` directory.
+`netkat-tutorial-solutions` directory.
 
 We want our firewall policy to wrap this forwarding policy:
 
@@ -131,14 +131,14 @@ let _ =
 ~~~
 
 Save this policy into a file `Firewall2.ml` in the
-`netkat-tutorial-workspace` directory.
+`netkat-tutorial-solutions` directory.
 
 ### Testing
 
 - Build and launch the controller:
 
 ~~~ shell
-$ netkat-build Firewall2
+$ ./netkat-build Firewall2
 $ ./Firewall2.d.byte
 ~~~
 
@@ -221,7 +221,7 @@ Then you should modify the firewall to only allow ICMP traffic between
 hosts `10.0.0.3` and `10.0.0.4`.
 
 Type this policy into a file `Firewall3.ml` in the
-`netkat-tutorial-workspace` directory and test it in Mininet. Note
+`netkat-tutorial-solutions` directory and test it in Mininet. Note
 that due to the access control policy, it probably makes sense to test
 a few points of the access control policy. For example, if you run
 _fortune_ on port 80 on `h1`,
@@ -242,6 +242,6 @@ flow using conditionals. However, using NetKAT's predicates (`p1 &&
 p2`, `p1 || p2`, and `!p`) is is often possible to write a more
 compact and legible policy. Revise your advanced firewall this policy,
 putting the result in a file `Firewall4.ml` in the
-`netkat-tutorial-workspace` directory and test it in Mininet.
+`netkat-tutorial-solutions` directory and test it in Mininet.
 
 {% include api.md %}

NetKATRepeater/index.md

@@ -18,11 +18,10 @@ programming language, and let a compiler and run-time system handle
 the details related to configuring switch flow tables (as well as
 sending requests for statistics, accumulating replies, etc.)
 
-The templates for this part are in
-`src/netkat-tutorial-solutions`.
+You will place these files in `netkat-tutorial-solutions`.
 
 ~~~
-$ cd src/netkat-tutorial-solutions
+$ cd netkat-tutorial-solutions
 ~~~
 
 ### Example 1: A Repeater (Redux)
@@ -77,7 +76,7 @@ To run the repeater, type the code above into a file
 start the repeater controller using the following commands.
 
 ~~~
-$ netkat-build Repeater
+$ ./netkat-build Repeater
 $ ./Repeater.d.byte
 ~~~
 

NetKATRouting/index.md

@@ -48,14 +48,14 @@ Using NetKAT, write a forwarding policy that connects all hosts to each other. Y
 >>
 ~~~
 
-Save this in a file called `Routing.ml` and save it in the `netkat-tutorial-workspace` folder.
+Save this in a file called `Routing.ml` and save it in the `netkat-tutorial-solutions` folder.
 
 #### Testing
 
 Compile and start the controller:
 
 ~~~
-$ netkat-build Routing.d.byte
+$ ./netkat-build Routing
 $ ./Routing.d.byte
 ~~~
 

OxLearning/index.md

@@ -40,10 +40,10 @@ learns host locations.
 
 You should use the template below to get started.  Save it in a file
 called `Learning.ml` and place it in the directory
-`~/src/frenetic-tutorial-workspace/Learning.ml`.
+`~/src/ox-tutorial-solutions/Learning.ml`.
 
 ~~~ ocaml
-(* ~/src/frenetic-tutorial-workspace/Learning.ml *)
+(* ~/src/ox-tutorial-solutions/Learning.ml *)
 
 open Frenetic_Ox
 open Frenetic_OpenFlow0x01

OxMonitor/index.md

@@ -36,10 +36,10 @@ let packet_in (sw : switchId) (xid : xid) (pktIn : packetIn) : unit =
 
 Use the following code as a template for this exercise.  Save it in a file
 called `Monitor.ml` and place it in the directory
-`~/src/frenetic-tutorial-workspace/Monitor.ml`.
+`~/src/ox-tutorial-solutions/Monitor.ml`.
 
 ~~~ ocaml
-(* ~/src/frenetic-tutorial-workspace/Monitor.ml *)
+(* ~/src/ox-tutorial-solutions/Monitor.ml *)
 
 open Frenetic_Ox
 open Frenetic_OpenFlow0x01

OxNat/index.md

@@ -43,10 +43,10 @@ $ sudo mn --controller=remote --topo=single,3 --mac --arp
 #### Programming Task
 
 Use the template below to get started. Save it in a file called
-`Nat1.ml` and place it in the directory `~/src/frenetic-tutorial-workspace/Nat1.ml`.
+`Nat1.ml` and place it in the directory `~/src/ox-tutorial-solutions/Nat1.ml`.
 
 ~~~ ocaml
-(* ~/src/frenetic-tutorial-workspace/Nat1.ml *)
+(* ~/src/ox-tutorial-solutions/Nat1.ml *)
 
 open Frenetic_Ox
 open Frenetic_OpenFlow0x01

OxRepeater/index.md

@@ -97,7 +97,7 @@ message. Therefore, this repeater only needs to provide a `packet_in`
 handler. We have provided some starter code in a template below.
 
 Fill in the body of this function and save it in a file called
-`Repeater.ml`.
+`ox-tutorial-solutions/Repeater.ml`.
 
 ~~~ ocaml
 open Frenetic_Ox
@@ -141,10 +141,10 @@ the [OpenFlow_Core] module) and fill it in.
 
 <h4 id="compiling">Compiling your Controller</h4>
 
-To build your controller, run the following command:
+To build your controller, run the following command from the <code>ox-tutorial-solutions</code> directory:
 
 ~~~
-$ ox-build Repeater.d.byte
+$ ./ox-build Repeater.d.byte
 ~~~
 
 Assuming compilation succeeds, you will see output like to this:

OxRouting/index.md

@@ -107,7 +107,7 @@ path back to a given source.
 
  * Build and launch the controller:
 
-       $ ox-build Routing.native
+       $ ./ox-build Routing.native
        $ ./Routing.native
 
 

README.md

@@ -10,7 +10,7 @@ locally, you'll need to checkout the gh-pages branch:
     $ git clone -b gh-pages [email protected]:frenetic-lang/tutorials.git
 
 If you want to preview your changes locally before pushing, you'll need to
-install [Jekyll].
+install [Jekyll].   Type "jekyll serve" to start up a local server.  
 
 [GitHub Pages]: https://pages.github.com
 [Jekyll]: http://jekyllrb.com