计算机端口详解

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1、计算机端口详解计算机“端口”是英文port的义译，可以认为是计算机与外界通讯交流的出口。其中硬件领域的端口又称接口，如：USB端口、串行端口等。软件领域的端口一般指网络中面向连接服务和无连接服务的通信协议端口，是一种抽象的软件结构，包括一些数据结构和 I/O （基本输入输出）缓冲区。可以先了解面向连接和无连接协议（Connection-Oriented and Connectionless Protocols）面向连接服务的主要特点有：面向连接服务要经过三个阶段：数据传数前，先建立连接，连接建立后再传输数据，数据传送完后，释放连接。面向连接服务，可确保数据传送的次序和传输的可靠性。无连接服务的

2、特点是：无连接服务只有传输数据阶段。消除了除数据通信外的其它开销。只要发送实体是活跃的，无须接收实体也是活跃的。它的优点是灵活方便、迅速，特别适合于传送少量零星的报文，但无连接服务不能防止报文的丢失、重复或失序。区分“面向连接服务”和“无连接服务”的概念，特别简单、形象的例子是：打电话和写信。两个人如果要通电话，必须先建立连接拨号，等待应答后才能相互传递信息，最后还要释放连接挂电话。写信就没有那么复杂了，地址姓名填好以后直接往邮筒一扔，收信人就能收到。TCP/IP协议在网络层是无连接的（数据包只管往网上发，如何传输和到达以及是否到达由网络设备来管理）。而“端口”，是传输层的内容，是面向连接的。

3、协议里面低于1024的端口都有确切的定义，它们对应着因特网上常见的一些服务。这些常见的服务可以划分为使用TCP端口（面向连接如打电话）和使用UDP端口（无连接如写信）两种。网络中可以被命名和寻址的通信端口是操作系统的一种可分配资源。由网络OSI （开放系统互联参考模型,Open System Interconnection Reference Model）七层协议可知，传输层与网络层最大的区别是传输层提供进程通信能力，网络通信的最终地址不仅包括主机地址，还包括可描述进程的某种标识。所以TCP/IP协议提出的协议端口，可以认为是网络通信进程的一种标识符。应用程序（调入内存运行后一般称为：进程）通

4、过系统调用与某端口建立连接（binding,绑定）后，传输层传给该端口的数据都被相应的进程所接收，相应进程发给传输层的数据都从该端口输出。在TCP/IP协议的实现中，端口操作类似于一般的I/。操作，进程获取一个端口，相当于获取本地唯一的I/O文件，可以用一般的读写方式访问。类似于文件描述符，每个端口都拥有一个叫端口号的整数描述符，用来区别不同的端口。山于TCP/IP传输层的TCP和UDP两个协议是两个完全独立的软件模块，因此各自的端口号也相互独立。如TCP有一个255号端口，UDP也可以有一个255号端口，两者并不冲突。端口号有两种基本分配方式：第种叫全局分配这是一种集中分配方式，由一个公认权

5、威的中央机构根据用户需要进行统一分配，并将结果公布于众，第二种是本地分配，又称动态连接，即进程需要访问传输层服务时，向本地操作系统提出申请，操作系统返回本地唯一的端口号，进程再通过合适的系统调用，将自己和该端口连接起来（binding,绑定）。TCP/IP端口号的分配综合了以上两种方式，将端口号分为两部分，少量的作为保留端口，以全局方式分配给服务进程。每一个标准服务器都拥有一个全局公认的端口叫周知口，即使在不同的机器上，其端口号也相同。剩余的为自由端口，以本地方式进行分配。TCP和UDP规定，小于-256的端口才-能作为保留端口。按端口号可分为3大类:(1)公认端口(Well Known Po

6、rts)：从0到1023,它们紧密绑定(binding)于一些服务。通常这些端口的通讯明确表明了某种服务的协议。例如：80端口实际上总是 HTTP通讯。(2)注册端口(Registered Ports)：从1024到49151。它们松散地绑定于一些服务。也就是说有许多服务绑定于这些端口，这些端口同样用于许多其它目的。例如：许多系统处理动态端口从1024左右开始。(3)动态和/或私有端口(Dynamic and/or Private Ports)：从49152到65535。理论上，不应为服务分配这些端口。实际上，机器通常从1024起分配动态端口。但也有例外：SUN的RPC端口从32768开始。系

7、统管理员可以“重定向”端口：一种常见的技术是把一个端口重定向到另一个地址。例如默认的HTTP端口是80,不少人将它重定向到另一个端口，如8080。如果是这样改了，要访问本文就应改用这个地址 :8080/net/port.htm (当然，这仅仅是理论上的举例)。实现重定向是为了隐藏公认的默认端口，降低受破坏率。这样如果有人要对一个公认的默认端口进行攻击则必须先进行端口扫描。大多数端口重定向与原端口有相似之处，例如多数HTTP端口由80变化而来：81,88,8000,8080,8888。同样POP的端口原来在110,也常被重定向到1100。也有不少情况是选取统计上有特别意义的数，象1234,234

8、56,34567等。许多人有其它原因选择奇怪的数，42,69,666,31337。近来，越来越多的远程控制木马(Remote Access Trojans, RATs )采用相同的默认端口。如 NetBus的默认端口是12345。Blake R. Swopes指出使用重定向端口还有一个原因，在UNIX系统上，如果你想侦听1024以下的端口需要有root权限。如果你没有root权限而又想开web服务，你就需要将其安装在较高的端口。此外，一些ISP的防火墙将阻挡低端口的通讯，这样的话即使你拥有整个机器你还是得重定向端口。常用默认端口列表及功能中文注解端口功能英文注解功能中文注解1 tcpmux T

9、CP Port Service Multiplexer 器2 compressnet Management Utility3 compressnet Compression Process5 rje Remote Job Entry7 echo Echo9 discard Discard11 systat Active Users13 daytime Daytime17 qotd Quote of the Day18 msp Message Send Protocol19 chargen Character Generator20 ftp-data File Transfer!Default

10、Data21 ftp File TransferControl22 ssh SSH Remote Login Protocol23 telnet Telnet24 ? any private mail system25 smtp Simple Mail Transfer27 nsw-fe NSW User System FE29 msg-icp MSG I CP31 msg-auth MSG Authentication33 dsp Display Support Protocol传输控制协议端口服务多路开关选择compressnet管理实用程序压缩进程远程作业登录回显在线用户时间每日引用消息

11、发送协议字符发生器文件传输协议(默认数据口)文件传输协议(控制)SSH远程登录协议终端仿真协议预留给个人用邮件系统简单邮件发送协议NSW用户系统现场工程师MSG ICPMSG验证显示支持协议预留给个人打印机服务35? any private printer server38394142434445464748495051维护52535455565758596061626364656667686970717273747576777879808182838485868737time Time时间rap Route Access Protocolrip Resource Location Proto

12、colgraphics Graphicsnameserver WINS Host Name Server nicname Who Ismpm-flags MPM FLAGS Protocol路由访问协议资源定位协议图形WINS主机名服务“绰号 who is服务MPM（消息处理模块）标志协议mpm Message Processing Module recv消息处理模块mpm-snd MPM default send ni-ftp Nl FTPauditd Digital Audit Daemon消息处理模块（默认发送口）Nl FTP数码音频后台服务tacacs Login Host Proto

13、col (TACACS)TACACS 登录主机协议xns-time XNS Time Protocol domain Domain Name Server xns-ch XNS Clearinghouse isi-gl ISI Graphics Language xns-auth XNS Authentication ? any private terminal access xns-mail XNS Mail ? any private file service ? Unassigned ni-mail Nl MAIL acas ACA Services whois+ whois+施乐网络服

14、务系统时间协议 域名服务器施乐网络服务系统票据交换ISI图形语言施乐网络服务系统验证预留个人用终端访问施乐网络服务系统邮件预留个人文件服务未定义NI邮件？异步通讯适配器服务covia Communications Integrator (Cl) tacacs-ds TACACS-Database Servicesql* netOracle SQL* NETbootps Bootstrap Protocol Server bootpc Bootstrap Protocol Client tftp Trivial File TransferWHOIS+通讯接口TACACS数据库服务Oracle S

15、QL* NET引导程序协议服务端 引导程序协议客户端gopher netrjs-1 netrjs-2 netrjs-3 netrjs-4GopherRemote JobRemote JobRemote JobRemote JobServiceServiceServiceService? any private dial out service小型文件传输协议 信息检索协议 远程作业服务 远程作业服务 远程作业服务 远程作业服务预留给个人拨出服务deos Distributed External Object Store 分布式外部对象存储? any private RJE service ve

16、ttcp vettcp finger Fingerhttp World Wide Web HTTP hosts2-ns HOSTS2 Name Server xfer XFER Utility mit-ml-dev MIT ML Device ctf Common Trace Facility mit-ml-dev MIT ML Device mfcobol Micro Focus Cobol ? any private terminal link预留给个人远程作业输入服务 修正TCP?查询远程主机在线用户等信息全球信息网超文本传输协议HOST2名称服务传输实用程序模块化智能终端ML设备公用追

17、踪设备模块化智能终端ML设备Micro Focus Cobol 编程语言 预留给个人终端连接re-mail-ck Remote Mail Checking Protocol 远程邮件检查协议 la-maint IMP Logical Address Maintenance I MP(接口信息处理机)逻辑地址8889909192939495969798kerberos Kerberossu-mit-tg SU/MIT Telnet Gateway dnsix DNSIX Securit Attribute Token mit-dov MIT Dover Spooler npp Network P

18、rinting Protocol dcp Device Control Protocol objcall Tivoli Object Dispatcher supdup SUPDUPdixie DIXI E Protocol SpecificationKerberros安全认证系统SU/MIT终端仿真网关Map DNSIX安全属性标记图MIT Dover假脱机网络打印协议设备控制协议Tivoli对象调度DIXIE协议规范swift-rvf (Swift Remote Virtural File Protocol)快速远程虚拟文件协议tacnews TAC NewsTAC新闻协议99 metag

19、ram Metagram Relay100 new acct unauthorized use端口详解# GoSH portlist compiled by Julian Assange - proff # Please send any additions / clarifications to strobe #reserved O/tcp Reserved JBPreserved 0/udp Reserved JBPtcpmux 1/tcp TCP Port Service Multiplexer MKLtcpmux 1/udp TCP Port Service Multiplexer M

20、KLcompressnet 2/tcp Management Utility BV15compressnet 2/udp Management Utility BV15compressnet 3/tcp Compression Process BV15compressnet 3/udp Compression Process BV15rje 5/tcp Remote Job Entry 12,JBPrje 5/udp Remote Job Entry 12,JBPecho 7/tcp Echo 95,JBPecho 7/udp Echo 95,JBPdiscard 9/tcp Discard

21、94,JBPdiscard 9/udp Discard 94,JBPsystat 11/tcp Active Users 89,JBPsystat 11/udp Active Users 89,JBPdaytime 13/tcp Daytime 93,JBPdaytime 13/udp Daytime 93,JBPnet st at 15/tcp Net st atqotd 17/tcp Quote of the Day 100,JBPqotd 17/udp Quote of the Day 100,JBPmsp 18/tcp Message Send Protocol RXNmsp 18/u

22、dp Message Send Protocol RXNchargen 19/tcp ttytst source Character Generatorchargen 19/udp ttytst source Character Generatorftp-data 20/tcp File Transfer Default Data96,JBPftp-data 20/udp File Transfer Default Data96,JBPftp 21/tcp File Transfer Control96,JBPftp 21/udp File Transfer Control96,JBPssh

23、22/tcp Secure Shell - RSA encrypted rshtelnet 23/tcp Telnet 112,JBPtelnet 23/udp Telnet 112,JBPpriv-mail 24/tcp any private mail system RA11 priv-mail 24/udp any private mail system RA11smtp 25/tcp Simple Mail Transfer 102,JBPsmtp 25/udp Simple Mail Transfer 102,JBPnsw-fe 27/tcp NSW User System FE 2

24、4,RHTnsw-fe 27/udp NSW User System FE 24,RHTmsg-icp 29/tcp MSG ICP 85,RHTmsg-icp 29/udp MSG I CP 85,RHTmsg-auth 31/tcp MSG Authentication 85,RHTmsg-auth 31/udp MSG Authentication 85,RHTdsp 33/tcp Display Support Protocol EXCdsp 33/udp Display Support Protocol EXCpriv-print 35/tcp any private printer

25、 server JBPpriv-print 35/udp any private printer server JBPtime 37/tcp Time 108,JBPtime 37/udp Time 108,JBPrap 38/tcp Route Access Protocolrap 38/udp Route Access Protocolrip 39/tcp resource Resource Location Protocolrip 39/udp resource Resource Location Protocolgraphics 41/tcp Graphics 129,JBPgraph

26、ics 41/udp Graphics 129,JBPnameserver 42/tcp Host Name Server 99,JBPnameserver 42/udp Host Name Server 99,JBPnicname 43/tcp Who Is 55,ANM2nicname 43/udp Who Is 55,ANM2mpm-flags 44/tcp MPM FLAGS Protocol JBPmpm-flags 44/udp MPM FLAGS Protocol JBPmpm 45/tcp Message Processing Module recv98,JBPmpm 45/u

27、dp Message Processing Module recv98,JBPmpm-snd 46/tcp MPM default send98,JBPmpm-snd 46/udp MPM default send98,JBPni-ftp 47/tcp Nl FTP134,SK8ni-ftp 47/udp Nl FTP134,SK8auditd 48/tcp Digital Audit Daemonauditd 48/udp Digital Audit Daemonlogin 49/tcp Login Host Protocol PHD1login 49/udp Login Host Prot

28、ocol PHD1re-mail-ck 50/tcp Remote Mail Checking Protocol 171,SXD1 re-mail-ck 50/udp Remote Mail Checking Protocol 171,SXD1 la-maint 51/tcp IMP Logical Address Maintenance 76,AGM la-maint 51/udp IMP Logical Address Maintenance 76,AGM xns-time 52/tcp XNS Time Protocol SXAxns-time 52/udp XNS Time Proto

29、col SXAdomain 53/tcp Domain Name Server 81,95,PM1domain 53/udp Domain Name Server 81,95,PM1xns-ch 54/tcp XNS Clearinghouse SXAxns-ch 54/udp XNS Clearinghouse SXAisi-gl 55/tcp ISI Graphics Language 7,RB9isi-gl 55/udp ISI Graphics Language 7,RB9xns-auth 56/tcp XNS Authentication SXAxns-auth 56/udp XNS

30、 Authentication SXAmtp 57/tcp deprecatedpriv-term 57/tcp any private terminal access JBPpriv-term 57/udp any private terminal access JBP xns-mail 58/tcp XNS Mail SXA xns-mail 58/udp XNS Mail SXA priv-file 59/tcp any private file service JBP priv-file 59/udp any private file service JBP ni-mail 61/tc

31、p Nl MAIL 5,SK8 ni-mail 61/udp Nl MAIL 5,SK8 acas 62/tcp ACA Services EXW acas 62/udp ACA Services EXW via-ftp 63/tcp VIA Systems - FTP DXD via-ftp 63/udp VIA Systems - FTP DXD whois+63/tcp whois+63/udpcovia 64/tcp Communications Integrator (Cl)TXD covia 64/udp Communications Integrator (Cl)TXD taca

32、cs-ds 65/tcp TACACS-Dat abase Service 3,KH43 tacacs-ds 65/udp TACACS-Database Service 3,KH43 sql* net 66/tcp Oracle SQL* NET JFH2 sql* net 66/udp Oracle SQL* NET JFH2bootps 67/tcp Bootstrap Protocol Server 36,WJC2 bootps 67/udp Bootstrap Protocol Server 36,WJC2 bootpc 68/tcp Bootstrap Protocol Clien

33、t 36,WJC2 bootpc 68/udp Bootstrap Protocol Client 36,WJC2 tftp 69/tcp Trivial File Transfer 126,DDC1 tftp 69/udp Trivial File Transfer 126,DDC1 gopher 70/tcp Gopher MXC1gopher 70/udp Gopher MXC1netrjs-171/tcp Remote Job Service 10,RTB3 netrjs-171/udp Remote Job Service 10,RTB3 netrjs-272/tcp Remote

34、Job Service 10,RTB3 netrjs-272/udp Remote Job Service 10,RTB3 netrjs-373/tcp Remote Job Service 10,RTB3 netrjs-373/udp Remote Job Service 10,RTB3 netrjs-474/tcp Remote Job Service 10,RTB3 netrjs-474/udp Remote Job Service 10,RTB3 priv-dial 75/tcp any private dial out service JBP priv-dial 75/udp any

35、 private dial out service JBP deos 76/tcp Distributed External Object Store deos 76/udp Distributed External Object Store netrjs 77/tcppriv-rje 77/tcp any private RJE service JBP priv-rje 77/udp any private RJE service JBP vettcp 78/tcp vettcp CXL1vettcp 78/udp vettcp CXL1 finger 79/tcp Finger 52,KL

36、H finger 79/udp Finger 52,KLH http 80/tcp www www-http World Wide Web HTTP http 80/udp www www-http World Wide Web HTTP www 80/tcp World Wide Web HTTP TXLwww 80/udp World Wide Web HTTP TXL hosts2-ns 81/tcp HOSTS2 Name Server EAK1 hosts2-ns 81/udp HOSTS2 Name Server EAK1 xfer 82/tcp XFER Utility TXS2

37、 xfer 82/udp XFER Utility TXS2mit-ml-dev 83/tcp MIT ML Device DXR3 mit-ml-dev 83/udp MIT ML Device DXR3ctf 84/tcp Common Trace Facility HXTctf 84/udp Common Trace Facility HXTmit-ml-dev 85/tcp MIT ML Device DXR3mit-ml-dev 85/udp MIT ML Device DXR3mfcobol 86/tcp Micro Focus Cobol SXEmfcobol 86/udp Mi

38、cro Focus Cobol SXEpriv-term-l 87/tcp any private terminal link JBPpriv-term-l 87/udp any private terminal link JBPttylink 87/tcpkerberos 88/tcp Kerberos BCNkerberos 88/udp Kerberos BCNsu-mit-tg 89/tcp SU/MIT Telnet Gateway MRCsu-mit-tg 89/udp SU/MIT Telnet Gateway MRCdnsix 90/tcp DNSIX Securit Attr

39、ibute Token Map CXW1dnsix 90/udp DNSIX Securit Attribute Token Map CXW1mit-dov 91/tcp MIT Dover Spooler EBMmit-dov 91/udp MIT Dover Spooler EBMnpp 92/tcp Network Printing Protocol LXMnpp 92/udp Network Printing Protocol LXMdcp 93/tcp Device Control Protocol DT15dcp 93/udp Device Control Protocol DT1

40、5objcall 94/tcp Tivoli Object Dispatcher TXB1objcall 94/udp Tivoli Object Dispatcher TXB1supdup 95/tcp SUPDUP 27,MRCsupdup 95/udp SUPDUP 27,MRCdixie 96/tcp DIXIE Protocol Specification TXH1dixie 96/udp DIXIE Protocol Specification TXH1swift-rvf 97/tcp Swift Remote Vitural File Protocol MXRswift-rvf

41、97/udp Swift Remote Vitural File Protocol MXRtacnews 98/tcp TAG News ANM2tacnews 98/udp TAC News ANM2metagram 99/tcp Metagram Relay GEOFmetagram 99/udp Metagram Relay GEOFnew acct 10O/tcp unauthorized usehostname 101/tcp hostnames NIC Host Name Serverhostname 101/udp hostnames NIC Host Name Serveris

42、o-tsap 102/tcp tsap ISO-TSAP Class 0iso-tsap 102/udp tsap ISO-TSAP Class 0gppitnp 103/tcp Genesis Point-to-Point Trans Net PXM1gppitnp 103/udp Genesis Point-to-Point Trans Net PXM1x400103/tcp ISO Mailacr-nema 104/tcp ACR-NEMA Digital Imag.& Comm.300PXM1acr-nema 104/udp ACR-NEMA Digital Imag.& Comm.3

43、00PXM1x400-snd 104/tcp ISO Mailcsnet-ns 105/tcp Mailbox Name Nameserver 127,MS56csnet-ns 105/udp Mailbox Name Nameserver 127,MS563com-tsmux 106/tcp 3COM-TSMUX JXS53com-tsmux 106/udp 3COM-TSMUX JXS5rtelnet 107/tcp Remote Telnet Service 101 JBPrtelnet 107/udp Remote Telnet Service 101 JBPsnagas 108/tc

44、p SNA Gateway Access Server KXMsnagas 108/udp SNA Gateway Access Server KXM pop2109/tcp postoffice Post Office Protocol - Version 2 pop2109/udp postoffice Post Office Protocol - Version 2 pop3110/tcp Post Office Protocol - Version 3122,MTR pop3110/udp Post Office Protocol - Version 3122,MTR sunrpc 1

45、11/tcp rpcbind SUN Remote Procedure Call sunrpc 111/udp rpcbind SUN Remote Procedure Call mcidas 112/tcp MclDAS Data Transmission Protocol GXD mcidas 112/udp MclDAS Data Transmission Protocol GXD auth 113/tcp Authentication Service 130,MCSJ auth 113/udp Authentication Service 130,MCSJ audionews 114/

46、tcp Audio News Multicast MXF2 audionews 114/udp Audio News Multicast MXF2 sftp 115/tcp Simple File Transfer Protocol 73,MKL1 sftp 115/udp Simple File Transfer Protocol 73,MKL1 ansanotify 116/tcp ANSA REX Notify NXH ansanotify 116/udp ANSA REX Notify NXH uucp-path 117/tcp UUCP Path Service 44,MAE uuc

47、p-path 117/udp UUCP Path Service 44,MAE sqlserv 118/tcp SQL Services LXB3 sqlserv 118/udp SQL Services LXB3nntp 119/tcp Network News Transfer Protocol 65,PL4 nntp 119/udp Network News Transfer Protocol 65,PL4 cfdptkt 120/tcp CFDPTKT JXO3cfdptkt 120/udp CFDPTKT JXO3erpc 121/tcp Encore Expedited Remot

48、e Pro.Call 132,JXO erpc 121/udp Encore Expedited Remote Pro.Call 132,JXO smakynet 122/tcp SMAKYNET MXO smakynet 122/udp SMAKYNET MXOntp 123/tcp Network Time Protocol 80,DLM1ntp 123/udp Network Time Protocol 80,DLM1 ansatrader 124/tcp ANSA REX Trader NXH ansatrader 124/udp ANSA REX Trader NXH locus-m

49、ap 125/tcp Locus PC-Interface Net Map Ser 137,EP53 locus-map 125/udp Locus PC-Interface Net Map Ser 137,EP53 unitary 126/tcp Unisys Unitary Login FEIL unitary 126/udp Unisys Unitary Login F曰L locus-con 127/tcp Locus PC-1 interface Conn Server 137,EP53 locus-con 127/udp Locus PC-Interface Conn Server

50、 137,EP53 gss-xlicen 128/tcp GSS X License Verification JXL gss-xlicen 128/udp GSS X License Verification JXL pwdgen 129/tcp Password Generator Protocol 141,FJW pwdgen 129/udp Password Generator Protocol 141,FJW cisco-fna 130/tcp cisco FNATIVE WXB cisco-fna 130/udp cisco FNATIVE WXB cisco-tna 131/tc

51、p cisco TNATIVE WXB cisco-tna 131/udp cisco TNATIVE WXB cisco-sys 132/tcp cisco SYSMAINT WXB cisco-sys 132/udp cisco SYSMAINT WXB statsrv 133/tcp Statistics Service DLM1 st at sr v 133/udp Statistics Service DLM1 ingres-net 134/tcp INGRES-NET Service MXB ingres-net 134/udp INGRES-NET Service MXB loc

52、-srv 135/tcp Location Service JXP loc-srv 135/udp Location Service JXPprofile 136/tcp PROFILE Naming System LLP profile 136/udp PROFILE Naming System LLPnetbios-ns 137/tcp NETBIOS Name Service JBPnetbios-ns 137/udp NETBIOS Name Service JBPnetbios-dgm 138/tcp NETBIOS Datagram Service JBPnetbios-dgm 1

53、38/udp NETBIOS Datagram Service JBPnetbios-ssn 139/tcp NETBIOS Session Service JBPnetbios-ssn 139/udp NETBIOS Session Service JBPemfis-data 140/tcp EMFIS Data Service GB7emfis-data 140/udp EMFIS Data Service GB7emfis-cntl 141/tcp EMFIS Control Service GB7emfis-cntl 141/udp EMFIS Control Service GB7b

54、l-idm 142/tcp Britton-Lee IDM SXS1bl-idm 142/udp Britton-Lee IDM SXS1imap2143/tcp Interim Mail Access Protocol v2MRCimap2143/udp Interim Mail Access Protocol v2MRCNeWS 144/tcp Window SystemNeWS 144/udp Window Systemnews 144/tcp NewS window system JAGnews 144/udp NewS window system JAGuaac 145/tcp UA

55、AC Protocol DAG4uaac 145/udp UAAC Protocol DAG4iso-tpO 146/tcp ISO-IPO 86,MTRiso-tpO 146/udp ISO-IPO 86,MTRiso-ip 147/tcp ISO-IP MTRiso-ip 147/udp ISO-IP MTRcronus 148/tcp CRON US-SUPPORT 135, JXBcronus 148/udp CRONUS-SUPPORT 135,JXBaed-512149/tcp AED 512 Emulation Service AXBaed-512149/udp AED 512

56、Emulation Service AXBsql-net 150/tcp SQL-NET MXPsql-net 150/udp SQL-NET MXPhems 151/tcp HEMS 87,CXThems 151/udp HEMS 87,CXTbftp 152/tcp Background File Transfer Program ADMbftp 152/udp Background File Transfer Program AD14sgmp 153/tcp SGMP 37,MS9sgmp 153/udp SGMP 37,MS9netsc-prod 154/tcp NETSC SH37n

57、etsc-prod 154/udp NETSC SH37netsc-dev 155/tcp NETSC SH37netsc-dev 155/udp NETSC SH37sqlsrv 156/tcp SQL Service CMRsqlsrv 156/udp SQL Service CMRknet-cmp 157/tcp KNET/VM Command/Message Protocol77,GSM11knet-cmp 157/udp KNET/VM Command/Message Protocol77,GSM11pcmail-srv 158/tcp PCMail Server 19,MXLpcm

58、ail-srv 158/udp PCMail Server 19,MXLnss-routing 159/tcp NSS-Routing JXRnss-routing 159/udp NSS-Routing JXRsgmp-traps 160/tcp SGMP-TRAPS 37,MS9sgmp-traps 160/udp SGMP-TRAPS 37,MS9snmp 161/tcp SNMP 15,MTRsnmp 161/udp SNMP 15,MTRsnmptrap 162/tcp SNMPTRAP 15,MTRsnmptrap 162/udp SNMPTRAP 15,MTRcm ip-man

59、163/tcp CMIP/TCP Manager 4,AXB1cm ip-man 163/udp CMIP/TCP Manager 4,AXB1cmip-agent 164/tcp CMIP/TCP Agentsmip-agent 164/udp CMI P/TCP Agentxns-courier 165/tcp Xerox 144,SXAxns-courier 165/udp Xerox 144,SXAs-net 166/tcp Sirius Systems BXLs-net 166/udp Sirius Systems BXLnamp 167/tcp NAMP MS9namp 167/u

60、dp NAMP MS9rsvd 168/tcp RSVD NT12rsvd 168/udp RSVD NT12send 169/tcp SEND WDW11send 169/udp SEND WDW11print-srv 170/tcp Network PostScript BKRprint-srv 170/udp Network PostScript BKRmultiplex 171/tcp Network Innovations Multiplex KXDmultiplex 171/udp Network Innovations Multiplex KXDcl/1172/tcp Netwo

61、rk Innovations CL/1KXDcl/1172/udp Network Innovations CL/1KXDxyplex-mux 173/tcp Xyplex BXSxyplex-mux 173/udp Xyplex BXSmailq 174/tcp MAILQ RXZmailq 174/udp MAILQ RXZvmnet 175/tcp VMNET CXTvmnet 175/udp VMNET CXTgenrad-mux 176/tcp GENRAD-MUX RXTgenrad-mux 176/udp GENRAD-MUX RXTxdmcp 177/tcp X Display Manager Control Protocol RWS4 xdmcp 177/udp X Display Manager Control Protocol RWS4 NextStep 178/udp nextstep NeXTStep NextStep Window Serv