计算机端口详解(非常详细,必看)

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。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/O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。由于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：第一种叫全局分配这是一种集中分配方式，由一个公认权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 Ports）：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

http://wwd.3322.net: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1234，23456，34567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。

端口 ? ?? ?? ?? ?? ?功能英文注解 ? ?? ?? ?? ?? ?? ?功能中文注解

1 tcpmux TCP Port Service Multiplexer 传输控制协议端口服务多路开关选择器 2 compressnet Management Utility compressnet 管理实用程序 3 compressnet Compression Process 压缩进程 5 rje Remote Job Entry 远程作业登录 7 echo Echo 回显 9 discard Discard 丢弃 11 systat Active Users 在线用户 13 daytime Daytime 时间 17 qotd Quote of the Day 每日引用 18 msp Message Send Protocol 消息发送协议 19 chargen Character Generator 字符发生器

20 ftp-data File Transfer[Default Data] 文件传输协议(默认数据口) 21 ftp File Transfer[Control] 文件传输协议(控制) 22 ssh SSH Remote Login Protocol SSH远程登录协议 23 telnet Telnet 终端仿真协议

24 ? any private mail system 预留给个人用邮件系统 25 smtp Simple Mail Transfer 简单邮件发送协议 27 nsw-fe NSW User System FE NSW 用户系统现场工程师 29 msg-icp MSG ICP MSG ICP 31 msg-auth MSG Authentication MSG验证 33 dsp Display Support Protocol 显示支持协议

35 ? any private printer server 预留给个人打印机服务 37 time Time 时间

38 rap Route Access Protocol 路由访问协议 39 rlp Resource Location Protocol 资源定位协议 41 graphics Graphics 图形

42 nameserver WINS Host Name Server WINS 主机名服务 43 nicname Who Is \绰号\服务 44 mpm-flags MPM FLAGS Protocol MPM(消息处理模块)标志协议 45 mpm Message Processing Module [recv] 消息处理模块

46 mpm-snd MPM [default send] 消息处理模块(默认发送口) 47 ni-ftp NI FTP NI FTP

48 auditd Digital Audit Daemon 数码音频后台服务 49 tacacs Login Host Protocol (TACACS) TACACS登录主机协议 50 re-mail-ck Remote Mail Checking Protocol 远程邮件检查协议

51 la-maint IMP Logical Address Maintenance IMP(接口信息处理机)逻辑地址维护 52 xns-time XNS Time Protocol 施乐网络服务系统时间协议 53 domain Domain Name Server 域名服务器

54 xns-ch XNS Clearinghouse 施乐网络服务系统票据交换 55 isi-gl ISI Graphics Language ISI图形语言

56 xns-auth XNS Authentication 施乐网络服务系统验证 57 ? any private terminal access 预留个人用终端访问 58 xns-mail XNS Mail 施乐网络服务系统邮件 59 ? any private file service 预留个人文件服务 60 ? Unassigned 未定义 61 ni-mail NI MAIL NI邮件?

62 acas ACA Services 异步通讯适配器服务 63 whois+ whois+ WHOIS+ 64 covia Communications Integrator (CI) 通讯接口 65 tacacs-ds TACACS-Database Service TACACS数据库服务 66 sql*net Oracle SQL*NET Oracle SQL*NET 67 bootps Bootstrap Protocol Server 引导程序协议服务端 68 bootpc Bootstrap Protocol Client 引导程序协议客户端 69 tftp Trivial File Transfer 小型文件传输协议 70 gopher Gopher 信息检索协议 71 netrjs-1 Remote Job Service 远程作业服务 72 netrjs-2 Remote Job Service 远程作业服务 73 netrjs-3 Remote Job Service 远程作业服务 74 netrjs-4 Remote Job Service 远程作业服务 75 ? any private dial out service 预留给个人拨出服务 76 deos Distributed External Object Store 分布式外部对象存储 77 ? any private RJE service 预留给个人远程作业输入服务 78 vettcp vettcp 修正TCP?

79 finger Finger 查询远程主机在线用户等信息 80 http World Wide Web HTTP 全球信息网超文本传输协议 81 hosts2-ns HOSTS2 Name Server HOST2名称服务 82 xfer XFER Utility 传输实用程序

83 mit-ml-dev MIT ML Device 模块化智能终端ML设备

84 ctf Common Trace Facility 公用追踪设备

85 mit-ml-dev MIT ML Device 模块化智能终端ML设备 86 mfcobol Micro Focus Cobol Micro Focus Cobol编程语言 87 ? any private terminal link 预留给个人终端连接 88 kerberos Kerberos Kerberros安全认证系统 89 su-mit-tg SU/MIT Telnet Gateway SU/MIT终端仿真网关 90 dnsix DNSIX Securit Attribute Token Map DNSIX 安全属性标记图 91 mit-dov MIT Dover Spooler MIT Dover假脱机 92 npp Network Printing Protocol 网络打印协议 93 dcp Device Control Protocol 设备控制协议 94 objcall Tivoli Object Dispatcher Tivoli对象调度 95 supdup SUPDUP

96 dixie DIXIE Protocol Specification DIXIE协议规范

97 swift-rvf（Swift Remote Virtural File Protocol）快速远程虚拟文件协议 98 tacnews TAC News TAC新闻协议 99 metagram Metagram Relay 100 newacct [unauthorized use]

reserved 0/tcp Reserved [JBP] reserved 0/udp Reserved [JBP]

tcpmux 1/tcp TCP Port Service Multiplexer [MKL] tcpmux 1/udp TCP Port Service Multiplexer [MKL] compressnet 2/tcp Management Utility [BV15] compressnet 2/udp Management Utility [BV15] compressnet 3/tcp Compression Process [BV15] compressnet 3/udp Compression Process [BV15] rje 5/tcp Remote Job Entry [12,JBP] rje 5/udp Remote Job Entry [12,JBP] echo 7/tcp Echo [95,JBP] echo 7/udp Echo [95,JBP] discard 9/tcp Discard [94,JBP] discard 9/udp Discard [94,JBP] systat 11/tcp Active Users [89,JBP] systat 11/udp Active Users [89,JBP] daytime 13/tcp Daytime [93,JBP] daytime 13/udp Daytime [93,JBP] netstat 15/tcp Netstat

qotd 17/tcp Quote of the Day [100,JBP] qotd 17/udp Quote of the Day [100,JBP] msp 18/tcp Message Send Protocol [RXN] msp 18/udp Message Send Protocol [RXN]

chargen 19/tcp ttytst source Character Generator

chargen 19/udp ttytst source Character Generator ftp-data 20/tcp File Transfer [Default Data] [96,JBP] ftp-data 20/udp File Transfer [Default Data] [96,JBP] ftp 21/tcp File Transfer [Control] [96,JBP] ftp 21/udp File Transfer [Control] [96,JBP] ssh 22/tcp Secure Shell - RSA encrypted rsh telnet 23/tcp Telnet [112,JBP] telnet 23/udp Telnet [112,JBP]

priv-mail 24/tcp any private mail system [RA11] priv-mail 24/udp any private mail system [RA11] smtp 25/tcp Simple Mail Transfer [102,JBP] smtp 25/udp Simple Mail Transfer [102,JBP] nsw-fe 27/tcp NSW User System FE [24,RHT] nsw-fe 27/udp NSW User System FE [24,RHT] msg-icp 29/tcp MSG ICP [85,RHT] msg-icp 29/udp MSG ICP [85,RHT]

msg-auth 31/tcp MSG Authentication [85,RHT] msg-auth 31/udp MSG Authentication [85,RHT] dsp 33/tcp Display Support Protocol [EXC] dsp 33/udp Display Support Protocol [EXC] priv-print 35/tcp any private printer server [JBP] priv-print 35/udp any private printer server [JBP] time 37/tcp Time [108,JBP] time 37/udp Time [108,JBP] rap 38/tcp Route Access Protocol rap 38/udp Route Access Protocol

rlp 39/tcp resource Resource Location Protocol rlp 39/udp resource Resource Location Protocol graphics 41/tcp Graphics [129,JBP] graphics 41/udp Graphics [129,JBP]

nameserver 42/tcp Host Name Server [99,JBP] nameserver 42/udp Host Name Server [99,JBP] nicname 43/tcp Who Is [55,ANM2] nicname 43/udp Who Is [55,ANM2]

mpm-flags 44/tcp MPM FLAGS Protocol [JBP] mpm-flags 44/udp MPM FLAGS Protocol [JBP]

mpm 45/tcp Message Processing Module [recv] [98,JBP] mpm 45/udp Message Processing Module [recv] [98,JBP] mpm-snd 46/tcp MPM [default send] [98,JBP] mpm-snd 46/udp MPM [default send] [98,JBP] ni-ftp 47/tcp NI FTP [134,SK8] ni-ftp 47/udp NI FTP [134,SK8]

aed-512 149/tcp AED 512 Emulation Service [AXB] aed-512 149/udp AED 512 Emulation Service [AXB] sql-net 150/tcp SQL-NET [MXP] sql-net 150/udp SQL-NET [MXP] hems 151/tcp HEMS [87,CXT] hems 151/udp HEMS [87,CXT]

bftp 152/tcp Background File Transfer Program [AD14] bftp 152/udp Background File Transfer Program [AD14] sgmp 153/tcp SGMP [37,MS9] sgmp 153/udp SGMP [37,MS9] netsc-prod 154/tcp NETSC [SH37] netsc-prod 154/udp NETSC [SH37] netsc-dev 155/tcp NETSC [SH37] netsc-dev 155/udp NETSC [SH37] sqlsrv 156/tcp SQL Service [CMR] sqlsrv 156/udp SQL Service [CMR]

knet-cmp 157/tcp KNET/VM Command/Message Protocol[77,GSM11] knet-cmp 157/udp KNET/VM Command/Message Protocol[77,GSM11] pcmail-srv 158/tcp PCMail Server [19,MXL] pcmail-srv 158/udp PCMail Server [19,MXL] nss-routing 159/tcp NSS-Routing [JXR] nss-routing 159/udp NSS-Routing [JXR] sgmp-traps 160/tcp SGMP-TRAPS [37,MS9] sgmp-traps 160/udp SGMP-TRAPS [37,MS9] snmp 161/tcp SNMP [15,MTR] snmp 161/udp SNMP [15,MTR] snmptrap 162/tcp SNMPTRAP [15,MTR] snmptrap 162/udp SNMPTRAP [15,MTR]

cmip-man 163/tcp CMIP/TCP Manager [4,AXB1] cmip-man 163/udp CMIP/TCP Manager [4,AXB1] cmip-agent 164/tcp CMIP/TCP Agent smip-agent 164/udp CMIP/TCP Agent xns-courier 165/tcp Xerox 144,SXA] xns-courier 165/udp Xerox [144,SXA] s-net 166/tcp Sirius Systems [BXL] s-net 166/udp Sirius Systems [BXL] namp 167/tcp NAMP [MS9] namp 167/udp NAMP [MS9] rsvd 168/tcp RSVD [NT12] rsvd 168/udp RSVD [NT12] send 169/tcp SEND [WDW11] send 169/udp SEND [WDW11]

print-srv 170/tcp Network PostScript [BKR] print-srv 170/udp Network PostScript [BKR]

multiplex 171/tcp Network Innovations Multiplex [KXD] multiplex 171/udp Network Innovations Multiplex [KXD] cl/1 172/tcp Network Innovations CL/1 [KXD] cl/1 172/udp Network Innovations CL/1 [KXD] xyplex-mux 173/tcp Xyplex [BXS] xyplex-mux 173/udp Xyplex [BXS] mailq 174/tcp MAILQ [RXZ] mailq 174/udp MAILQ [RXZ] vmnet 175/tcp VMNET [CXT] vmnet 175/udp VMNET [CXT]

genrad-mux 176/tcp GENRAD-MUX [RXT] genrad-mux 176/udp GENRAD-MUX [RXT]

xdmcp 177/tcp X Display Manager Control Protocol [RWS4] xdmcp 177/udp X Display Manager Control Protocol [RWS4] NextStep 178/udp nextstep NeXTStep NextStep Window Server nextstep 178/tcp NextStep NeXTStep NextStep Window Server bgp 179/tcp Border Gateway Protocol [KSL] bgp 179/udp Border Gateway Protocol [KSL] ris 180/tcp Intergraph [DXB] ris 180/udp Intergraph [DXB] unify 181/tcp Unify [VXS] unify 181/udp Unify [VXS]

audit 182/tcp Unisys Audit SITP [GXG] audit 182/udp Unisys Audit SITP [GXG] ocbinder 183/tcp OCBinder [JXO1] ocbinder 183/udp OCBinder [JXO1] ocserver 184/tcp OCServer [JXO1] ocserver 184/udp OCServer [JXO1] remote-kis 185/tcp Remote-KIS [RXD1] remote-kis 185/udp Remote-KIS [RXD1] kis 186/tcp KIS Protocol [RXD1] kis 186/udp KIS Protocol [RXD1]

aci 187/tcp Application Communication Interface [RXC1] aci 187/udp Application Communication Interface [RXC1] mumps 188/tcp Plus Five''s MUMPS [HS23] mumps 188/udp Plus Five''s MUMPS [HS23] qft 189/tcp Queued File Transport [WXS] qft 189/udp Queued File Transport [WXS] cacp 190/udp Gateway Access Control Protocol gacp 190/tcp Gateway Access Control Protocol

prospero 191/tcp Prospero Directory Service prospero 191/udp Prospero Directory Service

osu-nms 192/tcp OSU Network Monitoring System [DXK] osu-nms 192/udp OSU Network Monitoring System [DXK] srmp 193/tcp Spider Remote Monitoring Protocol [TXS] srmp 193/udp Spider Remote Monitoring Protocol [TXS] irc 194/tcp Internet Relay Chat Protocol [JXO2] irc 194/udp Internet Relay Chat Protocol [JXO2]

dn6-nlm-aud 195/tcp DNSIX Network Level Module Audit [LL69] dn6-nlm-aud 195/udp DNSIX Network Level Module Audit [LL69] dn6-smm-red 196/tcp DNSIX Session Mgt Module Audit Redir[LL69] dn6-smm-red 196/udp DNSIX Session Mgt Module Audit Redir[LL69] dls 197/tcp Directory Location Service [SXB] dls 197/udp Directory Location Service [SXB]

dls-mon 198/tcp Directory Location Service Monitor [SXB] dls-mon 198/udp Directory Location Service Monitor [SXB] smux 199/tcp SMUX [MTR] smux 199/udp SMUX [MTR]

src 200/tcp IBM System Resource Controller [GXM] src 200/udp IBM System Resource Controller [GXM] at-rtmp 201/tcp AppleTalk Routing Maintenance [RXC] at-rtmp 201/udp AppleTalk Routing Maintenance [RXC] at-nbp 202/tcp AppleTalk Name Binding [RXC] at-nbp 202/udp AppleTalk Name Binding [RXC] at-3 203/tcp AppleTalk Unused [RXC] at-3 203/udp AppleTalk Unused [RXC] at-echo 204/tcp AppleTalk Echo [RXC] at-echo 204/udp AppleTalk Echo [RXC] at-5 205/tcp AppleTalk Unused [RXC] at-5 205/udp AppleTalk Unused [RXC]

at-zis 206/tcp AppleTalk Zone Information [RXC] at-zis 206/udp AppleTalk Zone Information [RXC] at-7 207/tcp AppleTalk Unused [RXC] at-7 207/udp AppleTalk Unused [RXC] at-8 208/tcp AppleTalk Unused [RXC] at-8 208/udp AppleTalk Unused [RXC]

tam 209/tcp Trivial Authenticated Mail Protocol [DXB1] tam 209/udp Trivial Authenticated Mail Protocol [DXB1] z39.50 210/tcp ANSI Z39.50 [MXN] z39.50 210/udp ANSI Z39.50 [MXN]

914c/g 211/tcp Texas Instruments 914C/G Terminal [BXH1] 914c/g 211/udp Texas Instruments 914C/G Terminal [BXH1]

anet 212/tcp ATEXSSTR [JXT] anet 212/udp ATEXSSTR [JXT] ipx 213/tcp IPX [DP666] ipx 213/udp IPX [DP666] vmpwscs 214/tcp VM PWSCS [DXS] vmpwscs 214/udp VM PWSCS [DXS]

softpc 215/tcp Insignia Solutions [MXT] softpc 215/udp Insignia Solutions [MXT]

atls 216/tcp Access Technology License Server [LXD] atls 216/udp Access Technology License Server [LXD] dbase 217/tcp dBASE Unix [DXG1] dbase 217/udp dBASE Unix [DXG1]

mpp 218/tcp Netix Message Posting Protocol [STY] mpp 218/udp Netix Message Posting Protocol [STY] uarps 219/tcp Unisys ARPs [AXM1] uarps 219/udp Unisys ARPs [AXM1]

imap3 220/tcp Interactive Mail Access Protocol v3 [JXR2] imap3 220/udp Interactive Mail Access Protocol v3 [JXR2] fln-spx 221/tcp Berkeley rlogind with SPX auth [KXA] fln-spx 221/udp Berkeley rlogind with SPX auth [KXA] fsh-spx 222/tcp Berkeley rshd with SPX auth [KXA] fsh-spx 222/udp Berkeley rshd with SPX auth [KXA] rsh-spx 222/tcp Berkeley rshd with SPX auth rsh-spx 222/udp Berkeley rshd with SPX auth cdc 223/tcp Certificate Distribution Center [KXA] cdc 223/udp Certificate Distribution Center [KXA] sur-meas 243/tcp Survey Measurement [6,DDC1] sur-meas 243/udp Survey Measurement [6,DDC1] link 245/tcp LINK [1,RDB2] link 245/udp LINK [1,RDB2]

dsp3270 246/tcp Display Systems Protocol [39,WJS1] dsp3270 246/udp Display Systems Protocol [39,WJS1] pdap 344/tcp Prospero Data Access Protocol pdap 344/udp Prospero Data Access Protocol pawserv 345/tcp Perf Analysis Workbench pawserv 345/udp Perf Analysis Workbench zserv 346/tcp Zebra server zserv 346/udp Zebra server fatserv 347/tcp Fatmen Server fatserv 347/udp Fatmen Server

csi-sgwp 348/tcp Cabletron Management Protocol csi-sgwp 348/udp Cabletron Management Protocol

clearcase 371/tcp Clearcase [DXL1] clearcase 371/udp Clearcase [DXL1] ulistserv 372/tcp Unix Listserv [AXK] ulistserv 372/udp Unix Listserv [AXK] legent-1 373/tcp Legent Corporation [KXB] legent-1 373/udp Legent Corporation [KXB] legent-2 374/tcp Legent Corporation [KXB] legent-2 374/udp Legent Corporation [KXB] hassle 375/tcp hassle 375/udp

nip 376/tcp Amiga Envoy Network Inquiry Proto nip 376/udp Amiga Envoy Network Inquiry Proto tnETOS 377/tcp NEC Corporation tnETOS 377/udp NEC Corporation dsETOS 378/tcp NEC Corporation dsETOS 378/udp NEC Corporation

is99c 379/tcp TIA/EIA/IS-99 modem client is99c 379/udp TIA/EIA/IS-99 modem client is99s 380/tcp TIA/EIA/IS-99 modem server is99s 380/udp TIA/EIA/IS-99 modem server

hp-collector 381/tcp hp performance data collector hp-collector 381/udp hp performance data collector hp-managed-node 382/tcp hp performance data managed node hp-managed-node 382/udp hp performance data managed node hp-alarm-mgr 383/tcp hp performance data alarm manager hp-alarm-mgr 383/udp hp performance data alarm manager arns 384/tcp A Remote Network Server System arns 384/udp A Remote Network Server System ibm-app 385/tcp IBM Application

asa 386/tcp ASA Message Router Object Def. asa 386/udp ASA Message Router Object Def. aurp 387/tcp Appletalk Update-Based Routing Pro. aurp 387/udp Appletalk Update-Based Routing Pro. unidata-ldm 388/tcp Unidata LDM Version 4 unidata-ldm 388/udp Unidata LDM Version 4

ldap 389/tcp Lightweight Directory Access Protocol ldap 389/udp Lightweight Directory Access Protocol

entrustclient 389/tcp Entrustclient - NorTel DES auth network see 709/tcp uis 390/tcp uis 390/udp

synotics-relay 391/tcp SynOptics SNMP Relay Port synotics-relay 391/udp SynOptics SNMP Relay Port

synotics-broker 392/tcp SynOptics Port Broker Port synotics-broker 392/udp SynOptics Port Broker Port dis 393/tcp Data Interpretation System dis 393/udp Data Interpretation System embl-ndt 394/tcp EMBL Nucleic Data Transfer embl-ndt 394/udp EMBL Nucleic Data Transfer netcp 395/tcp NETscout Control Protocol netcp 395/udp NETscout Control Protocol netware-ip 396/tcp Novell Netware over IP netware-ip 396/udp Novell Netware over IP mptn 397/tcp Multi Protocol Trans. Net. mptn 397/udp Multi Protocol Trans. Net. kryptolan 398/tcp kryptolan 398/udp

iso-tsap-c2 399/tcp ISO-TSAP Class 2 iso-tsap-c2 399/udp ISO-TSAP Class 2 work-sol 400/tcp Workstation Solutions work-sol 400/udp Workstation Solutions ups 401/tcp Uninterruptible Power Supply ups 401/udp Uninterruptible Power Supply genie 402/tcp Genie Protocol genie 402/udp Genie Protocol decap 403/tcp decap 403/udp nced 404/tcp nced 404/udp ncld 405/tcp ncld 405/udp

imsp 406/tcp Interactive Mail Support Protocol imsp 406/udp Interactive Mail Support Protocol timbuktu 407/tcp timbuktu 407/udp

prm-sm 408/tcp Prospero Resource Manager Sys. Man. prm-sm 408/udp Prospero Resource Manager Sys. Man. prm-nm 409/tcp Prospero Resource Manager Node Man. prm-nm 409/udp Prospero Resource Manager Node Man. decladebug 410/tcp DECLadebug Remote Debug Protocol decladebug 410/udp DECLadebug Remote Debug Protocol rmt 411/tcp Remote MT Protocol rmt 411/udp Remote MT Protocol

synoptics-trap 412/tcp Trap Convention Port synoptics-trap 412/udp Trap Convention Port

smsp 413/tcp smsp 413/udp infoseek 414/tcp infoseek 414/udp bnet 415/tcp bnet 415/udp

silverplatter 416/tcp silverplatter 416/udp onmux 417/tcp onmux 417/udp hyper-g 418/tcp hyper-g 418/udp ariel1 419/tcp ariel1 419/udp smpte 420/tcp smpte 420/udp ariel2 421/tcp ariel2 421/udp ariel3 422/tcp ariel3 422/udp

opc-job-start 423/tcp IBM Operations Planning and Control Start opc-job-start 423/udp IBM Operations Planning and Control Start opc-job-track 424/tcp IBM Operations Planning and Control Track opc-job-track 424/udp IBM Operations Planning and Control Track icad-el 425/tcp icad-el 425/udp smartsdp 426/tcp smartsdp 426/udp

svrloc 427/tcp Server Location svrloc 427/udp Server Location ocs_cmu 428/tcp ocs_cmu 428/udp ocs_amu 429/tcp ocs_amu 429/udp utmpsd 430/tcp utmpsd 430/udp utmpcd 431/tcp utmpcd 431/udp iasd 432/tcp iasd 432/udp nnsp 433/tcp nnsp 433/udp

mobileip-agent 434/tcp mobileip-agent 434/udp mobilip-mn 435/tcp mobilip-mn 435/udp dna-cml 436/tcp dna-cml 436/udp comscm 437/tcp comscm 437/udp dsfgw 438/tcp dsfgw 438/udp dasp 439/tcp dasp 439/udp sgcp 440/tcp sgcp 440/udp

decvms-sysmgt 441/tcp decvms-sysmgt 441/udp cvc_hostd 442/tcp cvc_hostd 442/udp

https 443/tcp encrypted http server (SSL - RSA,rc4/des) snpp 444/tcp Simple Network Paging Protocol snpp 444/udp Simple Network Paging Protocol microsoft-ds 445/tcp microsoft-ds 445/udp ddm-rdb 446/tcp ddm-rdb 446/udp ddm-dfm 447/tcp ddm-dfm 447/udp ddm-byte 448/tcp ddm-byte 448/udp

as-servermap 449/tcp AS Server Mapper as-servermap 449/udp AS Server Mapper tserver 450/tcp tserver 450/udp

sfs-smp-net 451/tcp Cray Network Semaphore server sfs-smp-net 451/udp Cray Network Semaphore server sfs-config 452/tcp Cray SFS config server sfs-config 452/udp Cray SFS config server creativeserver 453/tcp CreativeServer creativeserver 453/udp CreativeServer contentserver 454/tcp ContentServer contentserver 454/udp ContentServer creativepartnr 455/tcp CreativePartnr

creativepartnr 455/udp CreativePartnr macon-tcp 456/tcp macon-udp 456/udp scohelp 457/tcp scohelp 457/udp

appleqtc 458/tcp apple quick time appleqtc 458/udp apple quick time ampr-rcmd 459/tcp ampr-rcmd 459/udp skronk 460/tcp skronk 460/udp datasurfsrv 461/tcp datasurfsrv 461/udp datasurfsrvsec 462/tcp datasurfsrvsec 462/udp alpes 463/tcp alpes 463/udp

biff 512/udp comsat used by mail system to notify users exec 512/tcp remote process execution; login 513/tcp remote login a la telnet;

who 513/udp whod maintains data bases showing who''s cmd 514/tcp shell like exec, but automatic shell 514/tcp rlogin style exec (rshd) syslog 514/udp

printer 515/tcp spooler (lpd) printer 515/udp spooler (lpd)

talk 517/tcp like tenex link, but across talk 517/udp like tenex link, but across ntalk 518/tcp (talkd) ntalk 518/udp (talkd) utime 519/tcp unixtime utime 519/udp unixtime

efs 520/tcp extended file name server

router 520/udp local routing process (on site); uses variant of Xerox timed 525/tcp timeserver timed 525/udp timeserver tempo 526/tcp newdate tempo 526/udp newdate courier 530/tcp rpc courier 530/udp rpc conference 531/tcp chat conference 531/udp chat

netnews 532/tcp readnews netnews 532/udp readnews

netwall 533/tcp for emergency broadcasts netwall 533/udp for emergency broadcasts

apertus-ldp 539/tcp Apertus Technologies Load Determination apertus-ldp 539/udp Apertus Technologies Load Determination uucp 540/tcp uucpd uucp 540/udp uucpd uucp-rlogin 541/tcp uucp-rlogin 541/udp

klogin 543/tcp Kerberos (v4/v5) klogin 543/udp Kerberos (v4/v5) kshell 544/tcp krcmd Kerberos (v4/v5) kshell 544/udp krcmd Kerberos (v4/v5) appleqtcsrvr 545/tcp appleqtcsrvr 545/udp new-rwho 550/tcp new-who new-rwho 550/udp new-who cybercash 551/tcp cybercash 551/udp deviceshare 552/tcp deviceshare 552/udp pirp 553/tcp pirp 553/udp dsf 555/tcp dsf 555/udp

remotefs 556/tcp rfs rfs_server Brunhoff remote filesystem remotefs 556/udp rfs rfs_server Brunhoff remote filesystem openvms-sysipc 557/tcp openvms-sysipc 557/udp sdnskmp 558/tcp sdnskmp 558/udp teedtap 559/tcp teedtap 559/udp

rmonitor 560/tcp rmonitord rmonitor 560/udp rmonitord monitor 561/tcp monitor 561/udp chshell 562/tcp chcmd chshell 562/udp chcmd snews 563/tcp snews 563/udp

9pfs 564/tcp plan 9 file service 9pfs 564/udp plan 9 file service whoami 565/tcp whoami whoami 565/udp whoami meter 570/tcp demon meter 570/udp demon meter 571/tcp udemon meter 571/udp udemon umeter 571/tcp udemon umeter 571/udp udemon

ipcserver 600/tcp Sun IPC server ipcserver 600/udp Sun IPC server

pcserver 600/tcp ECD Integrated PC board srvr urm 606/tcp Cray Unified Resource Manager urm 606/udp Cray Unified Resource Manager nqs 607/tcp nqs nqs 607/udp nqs

sift-uft 608/tcp Sender-Initiated/Unsolicited File Transfer sift-uft 608/udp Sender-Initiated/Unsolicited File Transfer npmp-trap 609/tcp npmp-trap 609/udp npmp-local 610/tcp npmp-local 610/udp npmp-gui 611/tcp npmp-gui 611/udp ginad 634/tcp ginad 634/udp

mount 635/udp NFS Mount Service

pcnfs 640/udp PC-NFS DOS Authentication bwnfs 650/udp BW-NFS DOS Authentication doom 666/tcp doom Id Software doom 666/udp doom Id Software mdqs 666/tcp mdqs 666/udp

elcsd 704/tcp errlog copy/server daemon elcsd 704/udp errlog copy/server daemon

entrustmanager 709/tcp EntrustManager - NorTel DES auth network see 389/tcp entrustmanager 709/udp EntrustManager - NorTel DES auth network see 389/tcp netviewdm1 729/tcp IBM NetView DM/6000 Server/Client netviewdm1 729/udp IBM NetView DM/6000 Server/Client netviewdm2 730/tcp IBM NetView DM/6000 send/tcp netviewdm2 730/udp IBM NetView DM/6000 send/tcp

netviewdm3 731/tcp IBM NetView DM/6000 receive/tcp netviewdm3 731/udp IBM NetView DM/6000 receive/tcp netcp 740/tcp NETscout Control Protocol [AXS2] netcp 740/udp NETscout Control Protocol [AXS2] netgw 741/tcp netGW [OXK] netgw 741/udp netGW [OXK]

netrcs 742/tcp Network based Rev. Cont. Sys. [GXC2] netrcs 742/udp Network based Rev. Cont. Sys. [GXC2] flexlm 744/tcp Flexible License Manager [MXC2] flexlm 744/udp Flexible License Manager [MXC2] fujitsu-dev 747/tcp Fujitsu Device Control fujitsu-dev 747/udp Fujitsu Device Control ris-cm 748/tcp Russell Info Sci Calendar Manager ris-cm 748/udp Russell Info Sci Calendar Manager kerberos-adm 749/tcp kerberos administration kerberos-adm 749/udp kerberos administration kerberos 750/tcp kdc Kerberos (v4) kerberos 750/udp kdc Kerberos (v4) loadav 750/udp rfile 750/tcp

kerberos_master 751/tcp Kerberos `kadmin'' (v4) kerberos_master 751/udp Kerberos `kadmin'' (v4) pump 751/tcp pump 751/udp qrh 752/tcp qrh 752/udp rrh 753/tcp rrh 753/udp tell 754/tcp send tell 754/udp send nlogin 758/tcp nlogin 758/udp con 759/tcp con 759/udp

krbupdate 760/tcp kreg Kerberos (v4) registration ns 760/tcp ns 760/udp

kpasswd 761/tcp kpwd Kerberos (v4) \rxe 761/tcp rxe 761/udp quotad 762/tcp quotad 762/udp

cycleserv 763/tcp cycleserv 763/udp omserv 764/tcp omserv 764/udp webster 765/tcp webster 765/udp phonebook 767/tcp phone phonebook 767/udp phone vid 769/tcp vid 769/udp cadlock 770/tcp cadlock 770/udp rtip 771/tcp rtip 771/udp cycleserv2 772/tcp cycleserv2 772/udp notify 773/udp submit 773/tcp acmaint_dbd 774/udp rpasswd 774/tcp acmaint_transd 775/udp entomb 775/tcp wpages 776/tcp wpages 776/udp wpgs 780/tcp wpgs 780/udp

hp-collector 781/tcp hp performance data collector hp-collector 781/udp hp performance data collector hp-managed-node 782/tcp hp performance data managed node hp-managed-node 782/udp hp performance data managed node hp-alarm-mgr 783/tcp hp performance data alarm manager hp-alarm-mgr 783/udp hp performance data alarm manager concert 786/tcp concert 786/udp mdbs_daemon 800/tcp mdbs_daemon 800/udp device 801/tcp device 801/udp

supfilesrv 871/tcp for SUP accessbuilder 888/tcp accessbuilder 888/udp vsinet 996/tcp

vsinet 996/udp

xtreelic 996/tcp XTREE License Server xtreelic 996/udp XTREE License Server maitrd 997/tcp maitrd 997/udp busboy 998/tcp puparp 998/udp

applix 999/udp Applix ac garcon 999/tcp puprouter 999/tcp puprouter 999/udp cadlock 1000/tcp ock 1000/udp

blackjack 1025/tcp network blackjack blackjack 1025/udp network blackjack

listen 1025/tcp listener RFS remote_file_sharing nterm 1026/tcp remote_login network_terminal iad1 1030/tcp BBN IAD iad1 1030/udp BBN IAD iad2 1031/tcp BBN IAD iad2 1031/udp BBN IAD iad3 1032/tcp BBN IAD iad3 1032/udp BBN IAD nim 1058/tcp nim 1058/udp nimreg 1059/tcp nimreg 1059/udp

instl_boots 1067/tcp Installation Bootstrap Proto. Serv. instl_boots 1067/udp Installation Bootstrap Proto. Serv. instl_bootc 1068/tcp Installation Bootstrap Proto. Cli. instl_bootc 1068/udp Installation Bootstrap Proto. Cli. socks 1080/tcp socks 1080/udp

ansoft-lm-1 1083/tcp Anasoft License Manager ansoft-lm-1 1083/udp Anasoft License Manager ansoft-lm-2 1084/tcp Anasoft License Manager ansoft-lm-2 1084/udp Anasoft License Manager nfsd-keepalive 1110/udp Client status info nfsd-status 1110/tcp Cluster status info msql 1112/tcp mini-sql server supfiledbg 1127/tcp for SUP nfa 1155/tcp Network File Access

nfa 1155/udp Network File Access lupa 1212/tcp lupa 1212/udp

nerv 1222/tcp SNI R&D network nerv 1222/udp SNI R&D network msg 1241/tcp remote message server hermes 1248/tcp hermes 1248/udp

alta-ana-lm 1346/tcp Alta Analytics License Manager alta-ana-lm 1346/udp Alta Analytics License Manager bbn-mmc 1347/tcp multi media conferencing bbn-mmc 1347/udp multi media conferencing bbn-mmx 1348/tcp multi media conferencing bbn-mmx 1348/udp multi media conferencing

sbook 1349/tcp Registration Network Protocol [SXS4] sbook 1349/udp Registration Network Protocol [SXS4] editbench 1350/tcp Registration Network Protocol [SXS4] editbench 1350/udp Registration Network Protocol [SXS4] equationbuilder 1351/tcp Digital Tool Works (MIT) [TXT1] equationbuilder 1351/udp Digital Tool Works (MIT) [TXT1] lotusnote 1352/tcp Lotus Note [GXP1] lotusnote 1352/udp Lotus Note [GXP1] relief 1353/tcp Relief Consulting relief 1353/udp Relief Consulting rightbrain 1354/tcp RightBrain Software rightbrain 1354/udp RightBrain Software intuitive-edge 1355/tcp Intuitive Edge intuitive-edge 1355/udp Intuitive Edge cuillamartin 1356/tcp CuillaMartin Company cuillamartin 1356/udp CuillaMartin Company pegboard 1357/tcp Electronic PegBoard pegboard 1357/udp Electronic PegBoard connlcli 1358/tcp connlcli 1358/udp ftsrv 1359/tcp ftsrv 1359/udp mimer 1360/tcp mimer 1360/udp linx 1361/tcp linx 1361/udp timeflies 1362/tcp timeflies 1362/udp

ndm-requester 1363/tcp Network DataMover Requester ndm-requester 1363/udp Network DataMover Requester ndm-server 1364/tcp Network DataMover Server ndm-server 1364/udp Network DataMover Server adapt-sna 1365/tcp Network Software Associates adapt-sna 1365/udp Network Software Associates

netware-csp 1366/tcp Novell NetWare Comm Service Platform netware-csp 1366/udp Novell NetWare Comm Service Platform dcs 1367/tcp dcs 1367/udp screencast 1368/tcp screencast 1368/udp

gv-us 1369/tcp GlobalView to Unix Shell gv-us 1369/udp GlobalView to Unix Shell us-gv 1370/tcp Unix Shell to GlobalView us-gv 1370/udp Unix Shell to GlobalView fc-cli 1371/tcp Fujitsu Config Protocol fc-cli 1371/udp Fujitsu Config Protocol fc-ser 1372/tcp Fujitsu Config Protocol fc-ser 1372/udp Fujitsu Config Protocol chromagrafx 1373/tcp chromagrafx 1373/udp

molly 1374/tcp EPI Software Systems molly 1374/udp EPI Software Systems bytex 1375/tcp bytex 1375/udp

ibm-pps 1376/tcp IBM Person to Person Software ibm-pps 1376/udp IBM Person to Person Software cichlid 1377/tcp Cichlid License Manager cichlid 1377/udp Cichlid License Manager elan 1378/tcp Elan License Manager elan 1378/udp Elan License Manager dbreporter 1379/tcp Integrity Solutions dbreporter 1379/udp Integrity Solutions

telesis-licman 1380/tcp Telesis Network License Manager telesis-licman 1380/udp Telesis Network License Manager apple-licman 1381/tcp Apple Network License Manager apple-licman 1381/udp Apple Network License Manager gwha 1383/tcp GW Hannaway Network License Manager gwha 1383/udp GW Hannaway Network License Manager os-licman 1384/tcp Objective Solutions License Manager os-licman 1384/udp Objective Solutions License Manager

atex_elmd 1385/tcp Atex Publishing License Manager atex_elmd 1385/udp Atex Publishing License Manager checksum 1386/tcp CheckSum License Manager checksum 1386/udp CheckSum License Manager

cadsi-lm 1387/tcp Computer Aided Design Software Inc LM cadsi-lm 1387/udp Computer Aided Design Software Inc LM objective-dbc 1388/tcp Objective Solutions DataBase Cache objective-dbc 1388/udp Objective Solutions DataBase Cache iclpv-dm 1389/tcp Document Manager iclpv-dm 1389/udp Document Manager iclpv-sc 1390/tcp Storage Controller iclpv-sc 1390/udp Storage Controller iclpv-sas 1391/tcp Storage Access Server iclpv-sas 1391/udp Storage Access Server iclpv-pm 1392/tcp Print Manager iclpv-pm 1392/udp Print Manager iclpv-nls 1393/tcp Network Log Server iclpv-nls 1393/udp Network Log Server iclpv-nlc 1394/tcp Network Log Client iclpv-nlc 1394/udp Network Log Client

iclpv-wsm 1395/tcp PC Workstation Manager software iclpv-wsm 1395/udp PC Workstation Manager software dvl-activemail 1396/tcp DVL Active Mail dvl-activemail 1396/udp DVL Active Mail audio-activmail 1397/tcp Audio Active Mail audio-activmail 1397/udp Audio Active Mail video-activmail 1398/tcp Video Active Mail video-activmail 1398/udp Video Active Mail cadkey-licman 1399/tcp Cadkey License Manager cadkey-licman 1399/udp Cadkey License Manager cadkey-tablet 1400/tcp Cadkey Tablet Daemon cadkey-tablet 1400/udp Cadkey Tablet Daemon goldleaf-licman 1401/tcp Goldleaf License Manager goldleaf-licman 1401/udp Goldleaf License Manager prm-sm-np 1402/tcp Prospero Resource Manager prm-sm-np 1402/udp Prospero Resource Manager prm-nm-np 1403/tcp Prospero Resource Manager prm-nm-np 1403/udp Prospero Resource Manager igi-lm 1404/tcp Infinite Graphics License Manager igi-lm 1404/udp Infinite Graphics License Manager ibm-res 1405/tcp IBM Remote Execution Starter ibm-res 1405/udp IBM Remote Execution Starter

netlabs-lm 1406/tcp NetLabs License Manager netlabs-lm 1406/udp NetLabs License Manager dbsa-lm 1407/tcp DBSA License Manager dbsa-lm 1407/udp DBSA License Manager sophia-lm 1408/tcp Sophia License Manager sophia-lm 1408/udp Sophia License Manager here-lm 1409/tcp Here License Manager here-lm 1409/udp Here License Manager hiq 1410/tcp HiQ License Manager hiq 1410/udp HiQ License Manager af 1411/tcp AudioFile af 1411/udp AudioFile innosys 1412/tcp innosys 1412/udp innosys-acl 1413/tcp innosys-acl 1413/udp

ibm-mqseries 1414/tcp IBM MQSeries ibm-mqseries 1414/udp IBM MQSeries dbstar 1415/tcp dbstar 1415/udp

novell-lu6.2 1416/tcp Novell LU6.2 novell-lu6.2 1416/udp Novell LU6.2

timbuktu-srv1 1417/tcp Timbuktu Service 1 Port timbuktu-srv2 1418/tcp Timbuktu Service 2 Port timbuktu-srv2 1418/udp Timbuktu Service 2 Port timbuktu-srv3 1419/tcp Timbuktu Service 3 Port timbuktu-srv3 1419/udp Timbuktu Service 3 Port timbuktu-srv4 1420/tcp Timbuktu Service 4 Port timbuktu-srv4 1420/udp Timbuktu Service 4 Port gandalf-lm 1421/tcp Gandalf License Manager gandalf-lm 1421/udp Gandalf License Manager autodesk-lm 1422/tcp Autodesk License Manager autodesk-lm 1422/udp Autodesk License Manager essbase 1423/tcp Essbase Arbor Software essbase 1423/udp Essbase Arbor Software hybrid 1424/tcp Hybrid Encryption Protocol hybrid 1424/udp Hybrid Encryption Protocol zion-lm 1425/tcp Zion Software License Manager zion-lm 1425/udp Zion Software License Manager sas-1 1426/tcp Satellite-data Acquisition System 1 sas-1 1426/udp Satellite-data Acquisition System 1 mloadd 1427/tcp mloadd monitoring tool

mloadd 1427/udp mloadd monitoring tool

informatik-lm 1428/tcp Informatik License Manager informatik-lm 1428/udp Informatik License Manager nms 1429/tcp Hypercom NMS nms 1429/udp Hypercom NMS tpdu 1430/tcp Hypercom TPDU tpdu 1430/udp Hypercom TPDU

rgtp 1431/tcp Reverse Gossip Transport rgtp 1431/udp Reverse Gossip Transport

blueberry-lm 1432/tcp Blueberry Software License Manager blueberry-lm 1432/udp Blueberry Software License Manager ms-sql-s 1433/tcp Microsoft-SQL-Server ms-sql-s 1433/udp Microsoft-SQL-Server ms-sql-m 1434/tcp Microsoft-SQL-Monitor ms-sql-m 1434/udp Microsoft-SQL-Monitor ibm-cics 1435/tcp ibm-cics 1435/udp

sas-2 1436/tcp Satellite-data Acquisition System 2 sas-2 1436/udp Satellite-data Acquisition System 2 tabula 1437/tcp tabula 1437/udp

eicon-server 1438/tcp Eicon Security Agent/Server eicon-server 1438/udp Eicon Security Agent/Server eicon-x25 1439/tcp Eicon X25/SNA Gateway eicon-x25 1439/udp Eicon X25/SNA Gateway

eicon-slp 1440/tcp Eicon Service Location Protocol eicon-slp 1440/udp Eicon Service Location Protocol cadis-1 1441/tcp Cadis License Management cadis-1 1441/udp Cadis License Management cadis-2 1442/tcp Cadis License Management cadis-2 1442/udp Cadis License Management ies-lm 1443/tcp Integrated Engineering Software ies-lm 1443/udp Integrated Engineering Software marcam-lm 1444/tcp Marcam License Management marcam-lm 1444/udp Marcam License Management proxima-lm 1445/tcp Proxima License Manager proxima-lm 1445/udp Proxima License Manager ora-lm 1446/tcp Optical Research A

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