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| Table 65 Predefined Services (continued) | ||
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| SERVICE | DESCRIPTION |
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| H.323(TCP:1720) | Net Meeting uses this protocol. |
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| HTTP(TCP:80) | Hyper Text Transfer Protocol - a client/server protocol for the world |
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| wide web. |
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| HTTPS | HTTPS is a secured http session often used in |
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| ICQ(UDP:4000) | This is a popular Internet chat program. |
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| IPSEC_TRANSPORT/ | The IPSEC AH (Authentication Header) tunneling protocol uses this |
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| TUNNEL(AH:0) | service. |
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| IPSEC_TUNNEL(ESP:0) | The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol |
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| uses this service. |
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| IRC(TCP/UDP:6667) | This is another popular Internet chat program. |
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| MSN Messenger(TCP:1863) | Microsoft Networks’ messenger service uses this protocol. |
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| MULTICAST(IGMP:0) | Internet Group Multicast Protocol is used when sending packets to a |
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| specific group of hosts. |
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| NEWS(TCP:144) | A protocol for news groups. |
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| NFS(UDP:2049) | Network File System - NFS is a client/server distributed file service that |
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| provides transparent |
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| NNTP(TCP:119) | Network News Transport Protocol is the delivery mechanism for the |
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| USENET newsgroup service. |
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| PING(ICMP:0) | Packet INternet Groper is a protocol that sends out ICMP echo |
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| requests to test whether or not a remote host is reachable. |
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| POP3(TCP:110) | Post Office Protocol version 3 lets a client computer get |
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| POP3 server through a temporary connection (TCP/IP or other). |
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| PPTP(TCP:1723) |
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| public networks. This is the control channel. |
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| PPTP_TUNNEL(GRE:0) |
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| public networks. This is the data channel. |
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| RCMD(TCP:512) | Remote Command Service. |
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| REAL_AUDIO(TCP:7070) | A streaming audio service that enables real time sound over the web. |
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| REXEC(TCP:514) | Remote Execution Daemon. |
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| RLOGIN(TCP:513) | Remote Login. |
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| RTELNET(TCP:107) | Remote Telnet. |
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| RTSP(TCP/UDP:554) | The Real Time Streaming (media control) Protocol (RTSP) is a remote |
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| control for multimedia on the Internet. |
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| SFTP(TCP:115) | Simple File Transfer Protocol. |
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| SMTP(TCP:25) | Simple Mail Transfer Protocol is the |
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| the Internet. SMTP enables you to move messages from one |
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| server to another. |
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| SNMP(TCP/UDP:161) | Simple Network Management Program. |
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| Traps for use with the SNMP (RFC:1215). |
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| UDP:162) |
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| Structured Query Language is an interface to access data on many |
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| different types of database systems, including mainframes, midrange |
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| systems, UNIX systems and network servers. |
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Chapter 9 Firewall Configuration | 173 |