Increase or decrease the disk volume sizes of AWS EC2 instances.
NMap, NCat, and Telnet are Linux CLI tools for port scanning, fingerprinting OS’s, and even vulnerability scanning.
SFTP (SSH File Transfer Protocol) implements FTP commands that can be used over SSH protocol and is more secure than general file transfer protocols like FTP...
Use FirewallD and UFW to easily open Firewall ports in Linux Servers.
Use AWS EC2 Management Console to open Firewall ports of cloud servers.