Wireshark analysis of Nmap and Metasploit built-in SYN scan

Source: Internet
Author: User
Tags ack

SYN Scan

SYN Scan, according to three handshake, sends a SYN packet to the port, if the other party responds Syn/ack, it proves the port is open

First, Nmap.

Fast, 0.67 seconds to complete, see Wireshark crawl

Send a large number of SYN packets at a time

The 15,19,24 in the figure is the ACK packet returned by the open port of the scanned host

Next is the Metasploit scan module.

The scanning speed of the Metasploit is slow, and it is obvious that the sweep starts from the first port

Wireshark analysis of Nmap and Metasploit built-in SYN scan

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.