OS Scan
Astsu sends an ICMP packet to the port destination and waits for a response from the domain. After receiving the response astsu extracts the TTL and finds the possible operating system of the host.
Astsu – Network Scanner Tool
Astsu is a free and open-source tool available on GitHub. Astsu is written in python language. You must have python language installed in your kali Linux operating system in order to use this tool. Astsu works as a scanner on the network. Astsu is used to scan a network using the IP address. Astsu can be used to scan common ports in which a TCP syn Packet to the destination port and the Nmap will check the services running on the port. Astsu can be used to discover open and closed ports on the network. Astsu can be used to scan the Operating system on the host. Astsu works as a scanner using an IP address.