Passwordless SSH access

1. Check for existing SSH keys

# ls ~/.ssh

2. Generate new SSH keys

# ssh-keygen

3. Check for SSH keys

# ls ~/.ssh

4. Copy your pulic key to server

# ssh-copy-id <username>@<ip-address>

or

# cat ~/.ssh/id_rsa.pub | ssh <username>@<ip-address> 'mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys' 

Refer to:
1. https://www.raspberrypi.org/documentation/remote-access/ssh/passwordless.md
2. https://askubuntu.com/questions/46930/how-can-i-set-up-password-less-ssh-login

exFAT support on CentOS 7

yum install -y http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-1.el7.nux.noarch.rpm

yum install exfat-utils fuse-exfat


Refer to: https://bitsanddragons.wordpress.com/2017/09/25/exfat-support-on-centos-7/

The default password of root for Centos 7.

There is no password. Password-based login as "root" is initially disabled. You need to login to to your default (admin) account using SSH and your key, and then run "sudo passwd root" to set a password on the "root" account. Otherwise you have to reset root password during reboot.