notes on setting up ssh keys for git usage

2021-05-14 15:50:44 -04:00 · 2021-05-14 15:50:44 -04:00 · 7e84cde9d7
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+SSH keys are generated by the openSSH program and are usually stored in `.ssh` folder of the home directory for the user.
+* Windows: `C:\Users\PTrowbridge\.ssh`
+* NIX `//home/pt/.ssh`
+
+If there is nothing there you can create keys by doing `ssh-keygen` like so:
+```
+    sshdemo@USHCC10107:~$ ssh-keygen
+    Generating public/private rsa key pair.
+    Enter file in which to save the key (/home/sshdemo/.ssh/id_rsa):
+    Created directory '/home/sshdemo/.ssh'.
+    Enter passphrase (empty for no passphrase):
+    Enter same passphrase again:
+    Your identification has been saved in /home/sshdemo/.ssh/id_rsa.
+    Your public key has been saved in /home/sshdemo/.ssh/id_rsa.pub.
+    The key fingerprint is:
+    SHA256:DpV1961Dec5/vmASwdu8eYPp1UXi4QOku6LJeVoSz3o sshdemo@USHCC10107
+    The key's randomart image is:
+    +---[RSA 2048]----+
+    |          . o .  |
+    |         o.+ . o.|
+    |        o .o. = =|
+    |       .   .== O |
+    |      o S .o o* +|
+    |       *   .. =o+|
+    |      . * .. B ++|
+    |     . BE.  + +.o|
+    |      B+     . .o|
+    +----[SHA256]-----+
+    sshdemo@USHCC10107:~$
+```
+
+if you chose to use a passphrase you will have to enter the passphrase once whenever you (login/boot?)
+
+Here's the folder and files it created:
+```
+    sshdemo@USHCC10107:~$ cd .ssh/
+    sshdemo@USHCC10107:~/.ssh$ ll
+    total 4
+    drwx------ 1 sshdemo sshdemo  512 May 14 15:38 ./
+    drwxr-xr-x 1 sshdemo sshdemo  512 May 14 15:38 ../
+    -rw------- 1 sshdemo sshdemo 1766 May 14 15:38 id_rsa
+    -rw-r--r-- 1 sshdemo sshdemo  400 May 14 15:38 id_rsa.pub
+    sshdemo@USHCC10107:~/.ssh$
+```
+
+the `id_rsa.pub` file is the public key. 
+if you copy the contents to your profile on a git server, you can use ssh to connect instead of having to use user/pass with http.
+usually you log into the website and go to setting for your profile.
+
+after loading the public key to your public profile can clone the repo using ssh.
+to target an alternate port you will have to manually do a remote add:
+
+`git clone ssh://git@gitea.hptrow.me:port_num_here/pt/notes`
+
+or if the repo is already setup you can:
+
+``git remote add hptrow ssh://git@gitea.hptrow.me:port_num_here/pt/notes`
+
+now you can `git push` without any password prompt