Técnica para inibir tentativas de acesso a VPS.

Essa é uma técnica usada para assustar a atacante mais inexperiente.

• No arquivo /etc/ssh/sshd_config, descomente a opção banner:

root@meuuser:~# vim /etc/ssh/sshd_config Banner /etc/issue.net

• No arquivo /etc/issue.net, colocamos o texto e ascii art, se tivermos:

root@meuuser:~# cat /etc/issue.net
##############################################################
# All connections are monitored here. #
# Disconnect IMMEDIATELY if you are not an authorized user. #
# LAWS will be applied in case of RULES VIOLATION. #
##############################################################

Em seguida, basta reiniciar o serviço SSH e acessar novamente para ver a mensagem inserida.