Generate key on local machine
ssh-keygen -t rsa
It will ask you for a password but you can leave it blank.
Note you could also pick -t dsa if you prefer.
Ensure that the remote server has a .ssh directory
Continue reading Setting up public key authentication over SSH
If you are adding more memory on your dedicated server, you will need to add more swap space. You have two choices: add or upgrade a swap partition or create a swap file. Because changing the size or create a new swap partition is not easy, the best solution is to create a new swap file. Since the 2.6 Linux kernel, the swap files are just as fast as swap partitions.
Continue reading Adding Swap File under Linux