Linux Mac tips
List of recipes to debug or just do what you need on MAC or LINUX machine.
Find the pid of a listening process + kill it
I found this Stackoverflow question.
On MAC
lsof -i tcp:8018
display a table like that
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
node 2091 slucas 21u IPv4 0x55f00507a74a3aa5 0t0 TCP *:4506 (LISTEN)
To kill the process
kill -9 2091
ssh add ssh keys to authorized keys in a server
cat ~/.ssh/id_rsa.pub | ssh [email protected] "cat >> ~/.ssh/authorized_keys"
authorized_keys is file that list all authorized keys in the remote server.
for root login check that PermitRootLogin without-password
is set in you sshdConfig file
https://www.digitalocean.com/community/tutorials/how-to-use-ssh-keys-with-digitalocean-droplets
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