Day 7.
What is missing from a half-open scan?
- FIN
- SYN-ACK
- ACK
- SYN
- RST
Solved
Question of the day 08/09, Cybersecurity Edition
+12Best answer by JMeixner
ACK (the last ACK)
Backups are like pizza, I love them. | Linkedin: @marco-fabbri-it
+16ACK (the last ACK)
Jochen (Joe) Meixner | Veeam Vanguard 2024 | Veeam Legend 2021 - 2024 | Veeam Certified Architect (VMCA) | Veeam Certified Engineer (VMCE) | LinkedIn: https://www.linkedin.com/in/jochen-meixner | X: @JoMeix | BlueSky: @jmeixner.bsky.social
+11- SYN-ACK
Veeam: VMCA | VMCE | VMXP | Veeam Legend - Microsoft: MCITP | MCP | MCSA | 2008 R2 | 2012R2 | 2016 | MCSE Core Infrastructure | MCSE Cloud Platform - Azure: AZ900 | AZ104| AZ500|AZ305 - AWS Cloud Practitioner - VMWare: VCP-DCV Vsphere 7.x - Cisco: CCNA (Expired)
+21ACK
Chris Childerhose - VMCA2024 | VMCE2023 | VMCE-SP2024 | Veeam Vanguard 8* | Veeam Legend 5* | VUG Canada Leader | vExpert 6* | Toronto VMUG Leader | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
+12In an half-scan, what is missing is last ACK.
It’s used to avoid logging on scanned device by interrupting TCP handshake.
On nmap is “-sS” and it’s the default scan.
Backups are like pizza, I love them. | Linkedin: @marco-fabbri-it
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.