SSH and making my computer speak
The Rails installation saga continues. My day was productive, but my progress happened in a different place than I had expected.
SSH access to my VM
My first goal today was setting up SSH key access to my VM that I'm practicing my Rails installation on. I've only done this a couple of times: I created my SSH key for my Macbook Pro over a year ago, then I set up SSH access on a couple of Droplets for work. I don't have a lot of practice with this, and I found the procedure confusing since I was trying to follow along with a half-dozen Digitalocean help guides.
After some digging, I managed to find the Digitalocean article for setting up SSH that I originally used over a year ago.
It was simpler than I remember to set up SSH. It's probably only simpler because the first time I had almost no idea what I was doing.
Step 1: ssh-keygen
ssh-keygen. If you want a more secure key, run
ssh-keygen -b 4096 to get a 4096-bit key instead of the standard 3072-bit. Set the key directory and enter your passcode. The passcode is optional, but offers more security so you should use it.
Step 2: copy your public key
Apparently there's a
ssh-copy-id command! I didn't know what I was doing last time: I
rsynced the key to the server. You can copy your key over by running
ssh-copy-id [email protected]. I got confused here because of my custom port. I had figured since I had mounted my VM to port 2222, I could tack
:2222 onto the end of the host and it would work. Nope: it needed a
-p flag to specify the port. The command should be
ssh-copy-id [email protected] -p 2222.
Step 3: Disable password access
Next we want to disable passwords so John the Ripper or whatever hackers use can't bust this thing open in three minutes. Edit
/etc/ssh/sshd_config with sudo and find the line that says
PasswordAuthentication yes and set it to
Important: make sure you're editing
sshd_config and not
ssh_config. They both have the
PasswordAuthentication property, but it doesn't actually disable it if you do it on
ssh_config. Yep, I messed that up.
An unexpected turn of priorities: making my computer speak
I realized my next step in deploying this site was getting it into version control (yes, I know that I'm playing with fire right now).
Despite wanting to build in public, I haven't proofread any of these posts. I'm actually really bad at proofreading. A couple of years ago, I discovered that if you select text on a Mac and hold
esc, the computer will read the text to you out loud. This has become a critical step in my writing process, and I don't feel comfortable editing without it.
This System76 machine doesn't have that feature.
My next step before committing to GitHub is proofreading, so this feature seemed critical. I hit the forums, copy and pasted some stuff, and learned just enough bash scripting to get a janky version of this feature working. I wrote a blog post outlining how to set it up, which took maybe an hour. Now I have it all set up, and tomorrow I can start proofreading the blogs I've written before there are so many that it becomes a hopeless venture.
Every time I do bash scripting, I realize how little bash scripting I know. I'd like to know more, but with Python being so ubiquitous it feels like a lost cause. If I stick with coding long enough, I'm sure I'll pick it up eventually. I wonder how many years it'll be until I hit that eventually.