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networking:firewall:common_ports
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networking:firewall:common_ports [2012/01/12 11:39] gcooper |
networking:firewall:common_ports [2012/01/12 12:01] (current) gcooper |
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| ====== Commonly Used TCP Ports ====== | ====== Commonly Used TCP Ports ====== | ||
| - | The following TCP ports are used to provide common network services such as e-mail and remote access. | + | The following TCP ports are used to provide common network services such as e-mail and remote access. UDP is a connectionless protocol that is not frequently forwarded. |
| - | In the interest of security, a person would normally only forward secure (encrypted) | + | These are some of the most common |
| - | These are some of the most common | + | :!: In the interest of security, a person would normally only forward secure (encrypted) |
| :!: You should only forward the ports for the services you want to expose to the outside (Internet). | :!: You should only forward the ports for the services you want to expose to the outside (Internet). | ||
| - | |20|FTP Data|| | + | |**Port**|**Name**|**Description**|**Notes**| |
| - | |21|FTP Control|| | + | |20|FTP Data|File Transfer Protocol|Server -> Client Data Connection. You don't need to forward port 21 if your clients use the common " |
| - | |22|SSH||Encrypted secure shell and secure file transfers (SFTP)| | + | |21|FTP Control|File Transfer Protocol|Client -> Server Control Connection| |
| - | |25|SMTP|Used to transfer mail between mail servers and for mail submitted by mail clients. May be secured with TLS.| | + | |22|SSH|Secure Shell|Encrypted secure shell and secure file transfers (SFTP)| |
| - | |80|HTTP| | + | |25|SMTP|Simple Mail Transfer Protocol|Used to transfer mail between mail servers and for mail submitted by mail clients. May be secured with TLS.| |
| - | |110|POP3| | + | |80|HTTP|Hypertext Transfer Protocol|The common WWW protocol used by web browsers| |
| - | |143|IMAP| | + | |110|POP3|Post Office Protocol v3|Mail retrieval. Client-based message store.| |
| - | |443|HTTPS| | + | |143|IMAP|Internet Mail Access Protocol|Mail retrieval. Server-based message store.| |
| - | |465|SMTP over SSL| | + | |443|HTTPS|HTTP over SSL|Encrypted web traffic| |
| - | |587|Submission|Used with SMTP protocol to submit mail from mail clients. May be secured with TLS.| | + | |465|SMTPS|SMTP over SSL|Encrypted mail traffic| |
| - | |993|IMAP over SSL| | + | |587|Submission|SMTP on alternate port|Used with SMTP protocol to submit mail from mail clients. May be secured with TLS. Often used when ISP blocks port 25.| |
| - | |995|POP over SSL| | + | |993|IMAPS|IMAP over SSL|Encrypted mail retrieval. Client-based message store.| |
| - | |1723|PPTP|Microsoft Point-to-Point-Tunneling | + | |995|POPS|POP over SSL|Encrypted mail retrieval. Server-based message store.| |
| - | |3389|RDP|Remote Desktop Protocol| | + | |1723|PPTP|Microsoft Point-to-Point |
| - | |5900|VNC|| | + | |3389|RDP|Remote Desktop Protocol|Newer versions of RDP are more secure and support more features.| |
| + | |5900|VNC|Virtual Network Computing|This remote control protocol may also be used on other ports such as 5901, 5902, etc.| | ||
networking/firewall/common_ports.1326393594.txt.gz · Last modified: 2012/01/12 11:39 by gcooper
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