lab-report-1.md

Lab Report 1

Part 1- Installing Visual Studio Code

Go to the Visual Studio Code website. Click on the corresponding link to download VSC onto your computer. VCS  Once you download and open VSC, it should look something like this. 

Part 2- Remotely Connecting

Start by finding your course specific account. Go to the Account Lookup page and fill out your information. You should then see a page like this. 

I was on a Mac computer, so I did not need to install OpenSSH. Start by opening a terminal in VSCode. In the terminal, your first command will be $ ssh [email protected] Replace "zz" with the letters in your course specific account. I was unable to login with the course specific account, after trying multiple times to reset my password and login. I used my SSO login instead. If it's your first time loggin in remotely, it should look something like this:

Part 3- Trying Some Commands

Try some commands in both your computer and the remote computer. Terminal --> Split Terminal allows you to have two terminals side by side. I logged into ssh on one, and compared the commands on each side by side. My computer: I printed the working directory (pwd), listed (ls), changed directory to home (cd ~) and then listed again. Remote login: On the remote, I used the same commands to see how they worked differently than on my home computer. I printed the working directory, listed, changed directory to home, and then listed again.

Part 4- Moving Files with scp

Create a text file on VCS called "WhereAmI.java" with the contents:

class WhereAmI {
  public static void main(String[] args) {
    System.out.println(System.getProperty("os.name"));
    System.out.println(System.getProperty("user.name"));
    System.out.println(System.getProperty("user.home"));
    System.out.println(System.getProperty("user.dir"));
  }
}

Run the following commands to compile and run the class

javac WhereAmI.java
java WhereAmI

Then copy the file to the remote server with this command, replacing 'cs15lfa22zz' with your course specific account: scp WhereAmI.java [email protected]:~/

Part 5- Setting an SSH Key

In terminal, type the command: ssh-keygen When given the prompt Enter file in which to save the key: press enter again to specify the default path

Then use these commands to copy the public key to the .ssh directory onto your account on the server.

# on client
$ ssh [email protected]
<Enter Password>

# now on server
$ mkdir .ssh
$ <logout>

# back on client
$ scp /Users/emilybetter/.ssh/id_rsa.pub [email protected]:~/.ssh/authorized_keys
# You use your username and the path you saw in the command above

Part 6- Optimizing Remote Running

I used the hints given to optimize remote running. I ran the command `scp WhereAmI.java [email protected]:~/ ; javac WhereAmI.java; java WhereAmI' After making a local change, I pressed the up arrow key to recall the last command.