Add SSH Into Heroku Server Hosting App as a Heroku TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1166 TILs and counting..._
+_1167 TILs and counting..._
 
 ---
 
@@ -333,6 +333,7 @@ _1166 TILs and counting..._
 
 - [Deploy A Review App To A Different Stack](heroku/deploy-a-review-app-to-a-different-stack.md)
 - [Set And Show Heroku Env Variables](heroku/set-and-show-heroku-env-variables.md)
+- [SSH Into Heroku Server Hosting App](heroku/ssh-into-heroku-server-hosting-app.md)
 
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heroku/ssh-into-heroku-server-hosting-app.md

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+# SSH Into Heroku Server Hosting App
+
+Heroku hosts and deploys your app on a remote server. One of Heroku's primary
+offerings is that it abstracts away the details of that server. You generally
+don't need to think about it. Instead you can use the Heroku CLI to interact
+with it indirectly.
+
+There will inevitably be a time when you need to access that server directly.
+Heroku gives you a way to do this with their CLI through
+[`ps:exec`](https://devcenter.heroku.com/articles/exec).
+
+```bash
+$ heroku ps:exec --app my-app
+```
+
+This will connect you to an SSH session with the server that the app is running
+on.