It's useful to be able to connect to a service and see what banner it displays. In this video, learn how to use netcat to connect to a service as a client.
- [Instructor] Normally we'd use a specific client … for each service that's accessible on our host. … An FTP client for an FTP server. … A browser for an HTTP server. … And a mail client for a mail server. … However we can also use NetCat as a client … for text based services. … For example, we can use NetCat to connect to a web server. … I'll type NC … minus V … google.com … 80. … The minus V switch tells NetCat to be verbose … and provide me with status messages … and 80 is the standard port for accessing a website. … The connection's been made and I can now type … the HTTP command … GET … Index.html … HTTP/1.1. … This causes the web server to send the text … used to render the web page in a browser. … Similarly, I can connect to an FTP server. … I'll type NC … minus V … speedtest.tele2.net … 21. … This will connect to the speedtest.tele2.net service … and the FTP server will wait for me to login. … I'll do that. … First, I'll type user … anonymous. … Then I'll type … pass … email@example.com. …
- Hackers and the kill chain
- Viruses, spyware, and adware
- Detecting malware with Windows Defender
- Using Windows Firewall and Linux iptables
- Scanning with Nmap
- Monitoring network communications with Netcat
- Combating application-level threats
- Scanning a website to check for vulnerabilities
- Capturing intruders through packet inspection
Skill Level Beginner
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
1. Why Cybersecurity?
4. Network Scanning
5. Network Connections
6. Vulnerability Scanning
7. Web Applications
8. Monitoring Packets
Next steps1m 27s
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