Helpful Ubuntu and Linux Admin Utilities

SSH with no password

https://help.ubuntu.com/community/SSH/OpenSSH/Keys

Simple Steps

1. On Client (Mac or Linux): create keys

mkdir ~/.ssh
chmod 700 ~/.ssh
ssh-keygen -t rsa

2. Copy only Public Key to the Server or remote host

ssh-copy-id <username>@<host>

If ssh-copy-id not found then do this on the server

cp authorized_keys authorized_keys_Backup
cat id_rsa.pub >> authorized_keys

Software

sudo apt-get install openssh-server

sudo apt-get install openssh-client

Copy files from one machine or folder to another

https://help.ubuntu.com/community/rsync

sudo rsync -azvv /home/path/folder1/ /home/path/folder2

Software

sudo apt-get install rsync