ssh client-server key pairing a nightmare

as usual, i'm a super noob ("noob noob") and cant follow basic instructions, so time to naggy myself

my poopy terms:
- client : the local pc you interact with directly, the one you typing on
- server : the remote pc/server you want to ssh into, the one with (hopefully) the powderful compute

tested on linux & windows
macos not tested, maybe similar to linux instructions (i dunno, spoil your mac not my fault)

please note the following:
- client
- tested on both linux and windows
- server
- linux only
- nobody use windows server

generate key on your client pc

both linux and windows instructions alike

ssh-keygen [options]

## -t <type> : encryption tpye/implementation. eg rsa, tsa, ecdsa, ed25519
## -b <bit> : encryption bits

you will be prompted for 2 things

1. key file name and location
   - linux (default) : ~/.ssh/<key_name>
   - windows (default) : C:\Users\<user_name>\.ssh\<key_name>

2. password
   - leave blank for no password (just press enter twice on prompt)
   - naggy repeat password

see here for more detailed guide and options

copy public key from client to server

public key in the format <key_name>.pub

send key to server, from your client pc
server cannot directly access ur client pc key! (or maybe can i dunno :0)

linux : the better terminal

ssh-copy-id -i <path_to_client_key>/<client_key_name>.pub <server_username>@<remote_host_name>

## -i : input public key path, <path_to_client_key>/<client_key_name>.pub

windows : powder shell

open POWERSHELL on windows
NOT command prompt (it useless)
why use windows? so junky

cat ~/.ssh/<client_key_name>.pub | ssh <server_username>@<remote_host_name> "cat > ~/.ssh/authorized_keys"

explaining cat ~/.ssh/<client_key_name>.pub :
- accessing your windows client public key file
- in linux format
- ~ here represents C:\Users\<client_username>\ cos windows extra

explaining "cat > ~/.ssh/authorized_keys":
- store your client public key to server
- so server recognise client (know you and friend you)
- ~ here represents /home/<server_username>/

once done, open new ssh session on the client added to server, and should not need any password

if not, suck thumb and cry :) jkjk
if there is missing instructions, please dont beat me up, i fragile

cheers,
haha noob noob de ni