Enable root logins using ssh in Debian 8.0

By default you can no longer login using ssh as root with just a password since it is more secure to use a pre-shared key. However, you can you can still enable root logins using password authentication.

To do this you need to edit the ssh config file ‘/etc/ssh/sshd_config/sshd_config’ as root.

# vi /etc/ssh/sshd_config

Then find the entry in the Authentication section of the file that says ‘PermitRootLogin’ and change ‘without-password’ to ‘yes’.

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How to Update SSH & MOTD Banner on CentOS 6

For legal reasons, Some people need to display a warning banner on their Linux machine before login so that a person requires to acknowledge the contents of the banner before entering the password. To do this, edit a/etc/issue.net file and fill it with the desired context.

Edit the  /etc/issue.net file:

sudo nano /etc/issue.net

001Here is mine banner as a sample, you can add your’s here:

#########################################################
# Authorized access only! # 
# Disconnect IMMEDIATELY if you are not an authorized user!!! #
# All actions Will be monitored and recorded #
###############################################################

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