ftp port 21

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  1. TCP/IP Secure and Insecure Network Ports

    Learn TCP/IP secure vs insecure ports: HTTPS 443 & SSH 22 protect data, while HTTP 80 & FTP 21 risk attacks. Secure your network communication.
    • x32x01
    • Thread
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    • Forum: General Networking Forum
    • ftp port 21 http port 80 https port 443 insecure ports network security basics nmap port scanning secure network ports ssh port 22 tcp ip ports telnet port 23