Lab Report 1

Installing VScode

  1. Go to the Visual Studio Code website.
  2. Click the “Download” button pictured below, and choose the appropriate download corresponding to your operating system. Image
  3. Follow the application’s instructions for installation.

Remotely Connecting

  1. If you are on Windows, install the OpenSSH program. If you are on Mac, ignore this step and proceed to Step 2.
  2. Look up your course specific account by entering the information on this website.
  3. Open VScode and open a terminal by clicking “Terminal” in top menu and then selecting new terminal.

  4. Enter the following command into the terminal, replacing XX with the appropriate letters from your course specific account.

    ssh cs15lsp22zXX@ieng6.ucsd.edu

  5. If you get a message that reads:

    The authenticity of host 'ieng6.ucsd.edu (128.54.70.227)' can't be established. RSA key fingerprint is SHA256:ksruYwhnYH+sySHnHAtLUHngrPEyZTDl/1x99wUQcec. Are you sure you want to continue connecting (yes/no/[fingerprint])?

    Enter yes into the terminal.

  6. Enter your password, and if you see the following screen you are connected! Image

Trying Some Commands

  1. Try the ls -lat and ls -a commands on the remote server. Image
  2. Try the cp /home/linux/ieng6/cs15lsp22/public/hello.txt ~/ and ` cat /home/linux/ieng6/cs15lsp22/public/hello.txt` commands on the remote server. Image
  3. Try the ls -lat and ls -a commands on client. Image
  4. Try the cp /home/linux/ieng6/cs15lsp22/public/hello.txt ~/ and ` cat /home/linux/ieng6/cs15lsp22/public/hello.txt` on client. Image

Moving Files With scp

  1. Put java file (in this case, WhereAmI.java) onto your computer.
  2. Enter scp WhereAmI.java cs15lsp22XX@ieng6.ucsd.edu:~/ into the terminal on client, again replacing XX with the appropriate letters from your course specific account.
  3. Use ssh to enter remote server.
  4. Use command ls to check if file (WhereAmI.java) is in ssh. Image

Setting An SSH Key

  1. Enter ssh-keygen into terminal on server.
  2. When prompted with Enter file in which to save the key, enter /Users/<user-name>/.ssh/id_rsa replacing <username> with the appropriate one on your client.
  3. Enter an empty space bar twice when prompted with Enter passphrase (empty for no passphrase):.
  4. If you are on Windows, use these intructions to complete an extra step. If you are on Mac, ignore this step and proceed to Step 5.
  5. Enter remote server and enter command mkdir .ssh. Exit server.
  6. On client, enter scp/Users<user-name>/.ssh/id_rsa.pub cs15lsp22XX@ieng6.ucsd.edu:~/.ssh/authorized_keys, replacing <user-name> and XX with appropriate inputs.
  7. Test if you can login without needing a password. Image

Optimizing Remote Running

  1. For copying a local edit in WhereAmI.java to the server and running it, first enter

    scp WhereAmI.java cs15lsp22avv@ieng6.ucsd.edu:~/ into the terminal, followed by

    ssh cs15lsp22avv@ieng6.ucsd.edu "javac WhereAmI.java; java WhereAmI" and you should see it run. Image (Here one can see the commands making the file run on the server, with the last line "hello" being the local edit. )

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