workshop 3: Connecting to remote computers with ssh

[ctb]

Tuesday, August 10 from 9 am - 11:30 PDT

Instructors: Moderator: Abhijna Helpers: Marisa

Zoom link:

Description:

This two hour workshop will show attendees how to connect to remote computers using ssh software, which is the most common way to do so. We will discuss usernames and passwords, introduce ssh software clients, and work through the most common challenges attendees will face in connecting to remote computers.

no draft lesson yet

owner: ???

---

hands-on topics:

• connecting to remote systems with a password (farm HPC?)
• using ssh keypairs;
• ???

[ctb]

• IMPORTANT QUESTION: what ssh client?
  • mobaxterm?
  • does latest version of Windows have ssh?
  • Is there a web based portal or plugin?
  • as a note:
    • we can provide ssh keys up front
    • and only later tell them how to generate one
• topics/learning objectives
  • different clients discussion
  • specifying a computer to log into
  • specifying a username to connect to
    • @ vs -l
    • local vs remote
  • passwords vs keys
    • do we teach how to generate keys?
    • maybe show how to generate on farm
  • how public/private keys work
  • troubleshooting
    • -v and logging, what connections look like
    • incorrect password vs incorrect key
    • key-only vs password-only
    • network connectivity
  • can we set up some examples somewhere for this? remote aws (password), remote aws (key), remote farm (ssh key)
  • compare/contrast with binder, jupyter, rstudio, and web interfaces more generally; http vs ssh
  • systems administration, privileges, etc.
  • home directory, common locations on systems
    • scratch, tmp, shared directories
• prerequisites: unix shell
  • a basic understanding of executing commands remotely
  • local vs remote computer concepts
• assessments
  • maybe some questions based on the unix shell
  • some questions about where things execute, using what memory/disk?

[ctb]

note that I need to leave at 11am PST.

[ctb]

err, and so does Amanda.

[ctb]

lesson dev: https://hackmd.io/5eV8uYsXTU-GxPVdXG32Bg

[jeremywalter]

Surveys: Pre: https://forms.gle/9qWtouf4nA2vXi3LA Post: https://forms.gle/ZpRZWWCNKKyLJhtp8

[nick-ulle]

Notes should reflect ssh is on both Linux and OS X

[marisalim]

add to ssh login section

Mine worked but it just had this message: The authenticity of host 'farm.cse.ucdavis.edu (128.120.146.1)' can't be established. ECDSA key fingerprint is SHA256:XsfxXdolugXtm5/nWuEX0UB3mkllshTHTx+yHXQTrE0. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes I just typed yes

reminder that the git clone step is a bit slow on Farm when there are 40 ppl running it (perhaps good timing for a break, while it downloads)

[nick-ulle]

Suggestion to teach sftp rather than or in addition to scp. It's much more convenient if you need to transfer many files.

[ctb]

On Tue, Aug 10, 2021 at 10:57:48AM -0700, Nick Ulle wrote:

Suggestion to teach sftp rather than or in addition to scp. It's much more convenient if you need to transfer many files.

planned for Thursday! but it's a bit harder on mobaxterm... which is why I decided not to teach it today!

[jeremywalter]

Chat text (if anyone wants to grab q's) GMT20210810-155028_Recording.txt