一 摘要
端口是网络应用中非常重要的东西，相当于门。
二 什么是端口
在 Internet上，主机间通过TCP/TP协议发送和接收数据报告，每个数据报告根据其目的主机ip互联网网络中的路由选择地址。可以看出，报告数据 利润传输到目的主机没有问题。问题在哪里？我们知道大多数人都知道
操作系统支持多程序（过程）同时运行，因此目的主机应将接收到的数据发送给许多相同的数据 运行过程中的哪一个？显然，这个问题需要解决，引入了端口机制。
本地操作系统将为需要的过程分配协议端口 （protocal port，也就是说，我们常说的端口)，每个协议端口都有一个正整数标如:80、139、445等。当目的主机收到数据报告时，数据将根据报告第一部分的目的端口号发送到相应的端口，与该端口相对应的过程将接收数据并等待下一组数据的到来。说到这里，端口的概念似乎还是抽象的，继续跟我来，不要走开。
端口实际上是一个团队。操作系统为每个过程分配不同的团队。根据目的端口，数据报告被推入相应的团队，等待被过程取用。在极其特殊的情况下，团队也可能溢出，但操作系统允许每个过程指定和调整团队的大小。
不仅接受数据报告的过程需要打开自己的端口，而且发送数据报告的过程也需要打开端口。这样，有源端口将在数据报告中标记，以便接受数据可以顺利返回到端口。
三 端口的分类
在Internet根据协议类型，端口分为TCP端口和UDP两种端口，虽然都用正整数标记，但不会引起歧义，比如TCP的80端口和UDP80端口，因为数据报告同时标明端口类型。
从端口分布的角度来看，端口分为固定端口和动态端口（一些教程将很少使用的高端口分为第三类：私人端口）：
固定端口(0-1023):
采用集中管理机制，即服从管理机构对端口的分配，该机构负责发布这些分配。由于这些端口与某些服务密切相关，我们经常扫描这些端口来判断对方 这些服务是否已经开比如TCP的21（ftp），80（http），139（netbios），UDP的7（echo），69（tftp）等等，大家悉 知的端口；
动态端口(1024-49151)
操作系统将这些端口动态地分配给每个过程，而不是固定地绑定到某个服务， 同一过程的两次分配可以分配到不同的端口。然而，一些应用程序不愿意使用操作系统分配的动态端口，它们有自己的商标端口，如oicq客户端的 木马冰河7626端口4000端口固定而有名。
四 端口在入侵中的作用
有些人曾经把服务器比作房子，把端口比作通往不同房间（服务）的门。如果不考虑细节，这是一个很好的比喻。如果入侵者想占领房子，他们必须破门而入（物理入侵）。对于入侵者来说，了解房子开了多少扇门，是什么样的门，门后面有什么是非常重要的。
入侵者通常使用扫描仪扫描目标主机的端口，以确定哪些端口是开放的。从开放的端口，入侵者可以知道目标主机提供了什么服务，然后猜测可能存在 因此，对端口的扫描可以帮助我们更好地了解目标主机，而对于管理员来说，扫描本机的开放端口也是做好安全防范的第一步。
五 端口相关工具
1 netstat -an
的确，这不是一个工具，但他是检查自己打开端口的最方便的方法cmd输入此命令。
C:/>netstat -an
Active Connections
Proto Local Address Foreign Address State
TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1025 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1026 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1028 0.0.0.0:0 LISTENING
TCP 0.0.0.0:3372 0.0.0.0:0 LISTENING
UDP 0.0.0.0:135 *:*
UDP 0.0.0.0:445 *:*
UDP 0.0.0.0:1027 *:*
UDP 127.0.0.1:1029 *:*
UDP 127.0.0.1:1030 *:*
这是我没上网时机器打开的端口。两个135和445是固定端口，其余是动态端口。
2 fport.exe和mport.exe
这也是一个小程序，在两个命令下查看本地机器的开放端口。事实上，与netstat -an这个命令是一样的，但它可以显示打开端口的过程，并且有更多的信息。如果你怀疑你奇怪的端口可能是木马，用它们来检查。
3 activeport.exe（也称aports.exe）
除了上述两个程序的所有功能外，东东还有两个更有吸引力的地方：图形界面和关闭端口。这对新手来说绝对是一件好事，推荐使用哦。
4 superscan3.0
你不会没听说过它的名字吗？纯端口扫描软件NO.1.速度快，可指定扫描端口，绝对必要。
六 保护好自己的端口
刚接触互联网的朋友通常对自己的端口非常敏感。他们总是他们的电脑打开太多的端口，更害怕后门程序的端口，但因为他们不太熟悉端口，所以没有解决办法上网。事实上，保护你的端口并不难，只要做以下几点：
1) 查看：经常使用命令或软件查看当地开放的端口，看看是否有可疑的端口；
2) 判断：如果您不熟悉开放端口，应立即查找端口全集或木马常见端口（网上很多），查看可疑端口的功能描述，或通过软件查看开放端口的过程；
3) 关闭：如果木马端口或数据中没有该端口的描述，则应关闭该端口。您可以使用防火墙或本地连接来屏蔽端口-TCP/IP高级-选项-选项-选项-选项-高级-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选项-选-选项-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选-选TCP/IP采用筛选机制筛选端口；
注：在判断时要小心，因为一些动态分布的端口也很容易引起你多余的怀疑，这些端口通常相对较低和连续。此外，一些狡猾的后门软件，他们会使用一些常见的端口，如80通信（穿透防火墙），这是不可预防的，所以不容易操作奇怪的程序是关键。
以下是常见端口的详细介绍。
汇总常用端口表
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" who is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
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 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
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
98 tacnews TAC News TAC(东京大学自动计算机?)新闻协议
99 metagram Metagram Relay
101/tcp hostname NIC Host Name Server
102/tcp iso-tsap ISO-TSAP Class 0
103/tcp gppitnp Genesis Point-to-Point Trans Net
104/tcp acr-nema ACR-NEMA Digital Imag. & Comm. 300
105/tcp cso CCSO name server protocol
105/tcp csnet-ns Mailbox Name Nameserver
106/tcp 3com-tsmux 3COM-TSMUX
107/tcp rtelnet Remote Telnet Service
108/tcp snagas SNA Gateway Access Server
109/tcp pop2 Post Office Protocol - Version 2
110/tcp pop3 Post Office Protocol - Version 3
111/tcp sunrpc SUN Remote Procedure Call
112/tcp mcidas McIDAS Data Transmission Protocol
113/tcp ident
114/tcp audionews Audio News Multicast
115/tcp sftp Simple File Transfer Protocol
116/tcp ansanotify ANSA REX Notify
117/tcp uucp-path UUCP Path Service
118/tcp sqlserv SQL Services
119/tcp nntp Network News Transfer Protocol
120/tcp cfdptkt CFDPTKT
121/tcp erpc Encore Expedited Remote Pro.Call
122/tcp smakynet SMAKYNET
123/tcp ntp Network Time Protocol
124/tcp ansatrader ANSA REX Trader
125/tcp locus-map Locus PC-Interface Net Map Ser
126/tcp unitary Unisys Unitary Login
127/tcp locus-con Locus PC-Interface Conn Server
128/tcp gss-xlicen GSS X License Verification
129/tcp pwdgen Password Generator Protocol
130/tcp cisco-fna cisco FNATIVE
131/tcp cisco-tna cisco TNATIVE
132/tcp cisco-sys cisco SYSMAINT
133/tcp statsrv Statistics Service
134/tcp ingres-net INGRES-NET Service
135/tcp epmap DCE endpoint resolution
136/tcp profile PROFILE Naming System
137/tcp netbios-ns NETBIOS Name Service
138/tcp netbios-dgm NETBIOS Datagram Service
139/tcp netbios-ssn NETBIOS Session Service
140/tcp emfis-data EMFIS Data Service
141/tcp emfis-cntl EMFIS Control Service
142/tcp bl-idm Britton-Lee IDM
143/tcp imap Internet Message Access Protocol
144/tcp uma Universal Management Architecture
145/tcp uaac UAAC Protocol
146/tcp iso-tp0 ISO-IP0
147/tcp iso-ip ISO-IP
148/tcp jargon Jargon
149/tcp aed-512 AED 512 Emulation Service
150/tcp sql-net SQL-NET
151/tcp hems HEMS
152/tcp bftp Background File Transfer Program
153/tcp sgmp SGMP
154/tcp netsc-prod NETSC
155/tcp netsc-dev NETSC
156/tcp sqlsrv SQL Service
157/tcp knet-cmp KNET/VM Command/Message Protocol
158/tcp pcmail-srv PCMail Server
159/tcp nss-routing NSS-Routing
160/tcp sgmp-traps SGMP-TRAPS
161/tcp snmp SNMP
162/tcp snmptrap SNMPTRAP
163/tcp cmip-man CMIP/TCP Manager
164/tcp cmip-agent CMIP/TCP Agent
165/tcp xns-courier Xerox
166/tcp s-net Sirius Systems
167/tcp namp NAMP
168/tcp rsvd RSVD
169/tcp send SEND
170/tcp print-srv Network PostScript
171/tcp multiplex Network Innovations Multiplex
172/tcp cl/1 Network Innovations CL/1
173/tcp xyplex-mux Xyplex
174/tcp mailq MAILQ
175/tcp vmnet VMNET
176/tcp genrad-mux GENRAD-MUX
177/tcp xdmcp X Display Manager Control Protocol
178/tcp nextstep NextStep Window Server
179/tcp bgp Border Gateway Protocol
180/tcp ris Intergraph
181/tcp unify Unify
182/tcp audit Unisys Audit SITP
183/tcp ocbinder OCBinder
184/tcp ocserver OCServer
185/tcp remote-kis Remote-KIS
186/tcp kis KIS Protocol
187/tcp aci Application Communication Interface
188/tcp mumps Plus Five‘s MUMPS
189/tcp qft Queued File Transport
190/tcp gacp Gateway Access Control Protocol
191/tcp prospero Prospero Directory Service
192/tcp osu-nms OSU Network Monitoring System
193/tcp srmp Spider Remote Monitoring Protocol
194/tcp irc Internet Relay Chat Protocol
195/tcp dn6-nlm-aud DNSIX Network Level Module Audit
196/tcp dn6-smm-red DNSIX Session Mgt Module Audit Redir
197/tcp dls Directory Location Service
198/tcp dls-mon Directory Location Service Monitor
199/tcp smux SMUX
200/tcp src IBM System Resource Controller
201/tcp at-rtmp AppleTalk Routing Maintenance
202/tcp at-nbp AppleTalk Name Binding
203/tcp at-3 AppleTalk Unused
204/tcp at-echo AppleTalk Echo
205/tcp at-5 AppleTalk Unused
206/tcp at-zis AppleTalk Zone Information
207/tcp at-7 AppleTalk Unused
208/tcp at-8 AppleTalk Unused
209/tcp qmtp The Quick Mail Transfer Protocol
210/tcp z39.50 ANSI Z39.50
211/tcp 914c/g Texas Instruments 914C/G Terminal
212/tcp anet ATEXSSTR
214/tcp vmpwscs VM PWSCS
215/tcp softpc Insignia Solutions
216/tcp CAIlic Computer Associates Int‘l License Server
217/tcp dbase dBASE Unix
218/tcp mpp Netix Message Posting Protocol
219/tcp uarps Unisys ARPs
220/tcp imap3 Interactive Mail Access Protocol v3
221/tcp fln-spx Berkeley rlogind with SPX auth
222/tcp rsh-spx Berkeley rshd with SPX auth
223/tcp cdc Certificate Distribution Center
242/tcp direct Direct
243/tcp sur-meas Survey Measurement
244/tcp dayna Dayna
245/tcp link LINK
246/tcp dsp3270 Display Systems Protocol
247/tcp subntbcst_tftp SUBNTBCST_TFTP
248/tcp bhfhs bhfhs
256/tcp rap RAP
257/tcp set Secure Electronic Transaction
258/tcp yak-chat Yak Winsock Personal Chat
259/tcp esro-gen Efficient Short Remote Operations
260/tcp openport Openport
263/tcp hdap HDAP
264/tcp bgmp BGMP
280/tcp http-mgmt http-mgmt
309/tcp entrusttime EntrustTime
310/tcp bhmds bhmds
312/tcp vslmp VSLMP
315/tcp dpsi DPSI
316/tcp decauth decAuth
317/tcp zannet Zannet
321/tcp pip PIP
344/tcp pdap Prospero Data Access Protocol
345/tcp pawserv Perf Analysis Workbench
346/tcp zserv Zebra server
347/tcp fatserv Fatmen Server
348/tcp csi-sgwp Cabletron Management Protocol
349/tcp mftp mftp
351/tcp matip-type-b MATIP Type B
351/tcp bhoetty bhoetty (added 5/21/97)
353/tcp ndsauth NDSAUTH
354/tcp bh611 bh611
357/tcp bhevent bhevent
362/tcp srssend SRS Send
365/tcp dtk DTK
366/tcp odmr ODMR
368/tcp qbikgdp QbikGDP
371/tcp clearcase Clearcase
372/tcp ulistproc ListProcessor
373/tcp legent-1 Legent Corporation
374/tcp legent-2
374/tcp legent-2 Legent Corporation
375/tcp hassle Hassle
376/tcp nip Amiga Envoy Network Inquiry Proto
377/tcp tnETOS NEC Corporation
378/tcp dsETOS NEC Corporation
379/tcp is99c TIA/EIA/IS-99 modem client
380/tcp is99s TIA/EIA/IS-99 modem server
381/tcp hp-collector hp performance data collector
383/tcp hp-alarm-mgr hp performance data alarm manager
384/tcp arns A Remote Network Server System
385/tcp ibm-app IBM Application
386/tcp asa ASA Message Router Object Def.
387/tcp aurp Appletalk Update-Based Routing Pro.
388/tcp unidata-ldm Unidata LDM Version 4
389/tcp ldap Lightweight Directory Access Protocol
390/tcp uis UIS
391/tcp synotics-relay SynOptics SNMP Relay Port
393/tcp dis Data Interpretation System
394/tcp embl-ndt EMBL Nucleic Data Transfer
395/tcp netcp NETscout Control Protocol
396/tcp netware-ip Novell Netware over IP
397/tcp mptn Multi Protocol Trans. Net.
398/tcp kryptolan Kryptolan
399/tcp iso-tsap-c2 ISO Transport Class 2 Non-Control over TCP
400/tcp work-sol Workstation Solutions
401/tcp ups Uninterruptible Power Supply
402/tcp genie Genie Protocol
403/tcp decap decap
404/tcp nced nced
405/tcp ncld ncld
406/tcp imsp Interactive Mail Support Protocol
407/tcp timbuktu Timbuktu
408/tcp prm-sm Prospero Resource Manager Sys. Man.
409/tcp prm-nm Prospero Resource Manager Node Man.
410/tcp decladebug DECLadebug Remote Debug Protocol
411/tcp rmt Remote MT Protocol
412/tcp synoptics-trap Trap Convention Port
413/tcp smsp SMSP
414/tcp infoseek InfoSeek
415/tcp bnet BNet
416/tcp silverplatter Silverplatter
417/tcp onmux Onmux
418/tcp hyper-g Hyper-G
419/tcp ariel1 Ariel
420/tcp smpte SMPTE
421/tcp ariel2 Ariel
422/tcp ariel3 Ariel
423/tcp opc-job-start IBM Operations Planning and Control Start
424/tcp opc-job-track IBM Operations Planning and Control Track
425/tcp icad-el ICAD
426/tcp smartsdp smartsdp
427/tcp svrloc Server Location
428/tcp ocs_cmu OCS_CMU
429/tcp ocs_amu OCS_AMU
430/tcp utmpsd UTMPSD
431/tcp utmpcd UTMPCD
432/tcp iasd IASD
433/tcp nnsp NNSP
434/tcp mobileip-agent MobileIP-Agent
435/tcp mobilip-mn MobilIP-MN
436/tcp dna-cml DNA-CML
437/tcp comscm comscm
438/tcp dsfgw dsfgw
439/tcp dasp dasp Thomas Obermair
440/tcp sgcp sgcp
441/tcp decvms-sysmgt decvms-sysmgt
442/tcp cvc_hostd cvc_hostd
443/tcp https http protocol over TLS/SSL
444/tcp snpp Simple Network Paging Protocol
445/tcp microsoft-ds Microsoft-DS
446/tcp ddm-rdb DDM-RDB
447/tcp ddm-dfm DDM-RFM
448/tcp ddm-ssl DDM-SSL
449/tcp as-servermap AS Server Mapper
450/tcp tserver TServer
451/tcp sfs-smp-net Cray Network Semaphore server
453/tcp creativeserver CreativeServer
454/tcp contentserver ContentServer
455/tcp creativepartnr CreativePartnr
456/tcp macon-tcp macon-tcp
457/tcp scohelp scohelp
458/tcp appleqtc apple quick time
459/tcp ampr-rcmd ampr-rcmd
460/tcp skronk skronk
461/tcp datasurfsrv DataRampSrv
462/tcp datasurfsrvsec DataRampSrvSec
463/tcp alpes alpes
464/tcp kpasswd kpasswd
465/tcp smtps smtp protocol over TLS/SSL (was ssmtp)
466/tcp digital-vrc digital-vrc
467/tcp mylex-mapd mylex-mapd
468/tcp photuris proturis
469/tcp rcp Radio Control Protocol
470/tcp scx-proxy scx-proxy
471/tcp mondex Mondex
472/tcp ljk-login ljk-login
473/tcp hybrid-pop hybrid-pop
474/tcp tn-tl-w1 tn-tl-w1
475/tcp tcpnethaspsrv tcpnethaspsrv
476/tcp tn-tl-fd1 tn-tl-fd1
477/tcp ss7ns ss7ns
478/tcp spsc spsc
479/tcp iafserver iafserver
480/tcp iafdbase iafdbase
481/tcp ph Ph service
482/tcp bgs-nsi bgs-nsi
483/tcp ulpnet ulpnet
484/tcp integra-sme Integra Software Management Environment
485/tcp powerburst Air Soft Power Burst
486/tcp avian avian
487/tcp saft saft Simple Asynchronous File Transfer
488/tcp gss-http gss-http
489/tcp nest-protocol nest-protocol
490/tcp micom-pfs micom-pfs
492/tcp ticf-1 Transport Independent Convergence for FNA
493/tcp ticf-2 Transport Independent Convergence for FNA
494/tcp pov-ray POV-Ray
495/tcp intecourier intecourier
496/tcp pim-rp-disc PIM-RP-DISC
497/tcp dantz dantz
498/tcp siam siam
499/tcp iso-ill ISO ILL Protocol
500/tcp isakmp isakmp
501/tcp stmf STMF
502/tcp asa-appl-proto asa-appl-proto
503/tcp intrinsa Intrinsa
504/tcp citadel citadel
505/tcp mailbox-lm mailbox-lm
506/tcp ohimsrv ohimsrv
507/tcp crs crs
508/tcp xvttp xvttp
509/tcp snare snare
510/tcp fcp FirstClass Protocol
511/tcp passgo PassGo
512/tcp exec remote process execution;
513/tcp login remote login a la telnet;
514/tcp shell cmd
515/tcp printer spooler
516/tcp videotex videotex
517/tcp talk like tenex link, but across
518/tcp ntalk
519/tcp utime unixtime
520/tcp efs extended file name server
521/tcp ripng ripng
522/tcp ulp ULP
523/tcp ibm-db2 IBM-DB2
524/tcp ncp NCP
525/tcp timed timeserver
526/tcp tempo newdate
527/tcp stx Stock IXChange
528/tcp custix Customer IXChange
529/tcp irc-serv IRC-SERV
530/tcp courier rpc
531/tcp conference chat
532/tcp netnews readnews
533/tcp netwall for emergency broadcasts
534/tcp mm-admin MegaMedia Admin
535/tcp iiop iiop
536/tcp opalis-rdv opalis-rdv
537/tcp nmsp Networked Media Streaming Protocol
538/tcp gdomap gdomap
539/tcp apertus-ldp Apertus Technologies Load Determination
540/tcp uucp uucpd
541/tcp uucp-rlogin uucp-rlogin
542/tcp commerce commerce
543/tcp klogin
544/tcp kshell krcmd
545/tcp appleqtcsrvr appleqtcsrvr
546/tcp dhcpv6-client DHCPv6 Client
547/tcp dhcpv6-server DHCPv6 Server
548/tcp afpovertcp AFP over TCP
549/tcp idfp IDFP
550/tcp new-rwho new-who
551/tcp cybercash cybercash
552/tcp deviceshare deviceshare
553/tcp pirp pirp
554/tcp rtsp Real Time Stream Control Protocol
555/tcp dsf
556/tcp remotefs rfs server
557/tcp openvms-sysipc openvms-sysipc
558/tcp sdnskmp SDNSKMP
559/tcp teedtap TEEDTAP
560/tcp rmonitor rmonitord
561/tcp monitor
562/tcp chshell chcmd
563/tcp nntps nntp protocol over TLS/SSL (was snntp)
564/tcp 9pfs plan 9 file service
565/tcp whoami whoami
566/tcp streettalk streettalk
567/tcp banyan-rpc banyan-rpc
568/tcp ms-shuttle microsoft shuttle
569/tcp ms-rome microsoft rome
570/tcp meter demon
571/tcp meter udemon
572/tcp sonar sonar
573/tcp banyan-vip banyan-vip
574/tcp ftp-agent FTP Software Agent System
575/tcp vemmi VEMMI
576/tcp ipcd ipcd
577/tcp vnas vnas
578/tcp ipdd ipdd
579/tcp decbsrv decbsrv
581/tcp bdp Bundle Discovery Protocol
588/tcp cal CAL
589/tcp eyelink EyeLink
590/tcp tns-cml TNS CML
593/tcp http-rpc-epmap HTTP RPC Ep Map
594/tcp tpip TPIP
596/tcp smsd SMSD
599/tcp acp Aeolon Core Protocol
600/tcp ipcserver Sun IPC server
606/tcp urm Cray Unified Resource Manager
607/tcp nqs nqs
608/tcp sift-uft Sender-Initiated/Unsolicited File Transfer
609/tcp npmp-trap npmp-trap
610/tcp npmp-local npmp-local
611/tcp npmp-gui npmp-gui
613/tcp hmmp-op HMMP Operation
620/tcp sco-websrvrmgr SCO WebServer Manager
621/tcp escp-ip ESCP
625/tcp dec_dlm DEC DLM
626/tcp asia ASIA
628/tcp qmqp QMQP
630/tcp rda RDA
631/tcp ipp IPP (Internet Printing Protocol)
632/tcp bmpp bmpp
634/tcp ginad ginad
635/tcp rlzdbase RLZ DBase
636/tcp ldaps ldap protocol over TLS/SSL (was sldap)
637/tcp lanserver lanserver
639/tcp msdp MSDP
666/tcp doom doom Id Software
667/tcp disclose campaign contribution disclosures - SDR Technologies
668/tcp mecomm MeComm
669/tcp meregister MeRegister
670/tcp vacdsm-sws VACDSM-SWS
671/tcp vacdsm-app VACDSM-APP
672/tcp vpps-qua VPPS-QUA
673/tcp cimplex CIMPLEX
674/tcp acap ACAP
675/tcp dctp DCTP
704/tcp elcsd errlog copy/server daemon
705/tcp agentx AgentX
709/tcp entrust-kmsh Entrust Key Management Service Handler
710/tcp entrust-ash Entrust Administration Service Handler
729/tcp netviewdm1 IBM NetView DM/6000 Server/Client
730/tcp netviewdm2 IBM NetView DM/6000 send/tcp
731/tcp netviewdm3 IBM NetView DM/6000 receive/tcp
741/tcp netgw netGW
742/tcp netrcs Network based Rev. Cont. Sys.
744/tcp flexlm Flexible License Manager
747/tcp fujitsu-dev Fujitsu Device Control
748/tcp ris-cm Russell Info Sci Calendar Manager
749/tcp kerberos-adm kerberos administration
750/tcp rfile
751/tcp pump
752/tcp qrh
753/tcp rrh
754/tcp tell send
758/tcp nlogin
759/tcp con
760/tcp ns
761/tcp rxe
762/tcp quotad
763/tcp cycleserv
764/tcp omserv
765/tcp webster
769/tcp vid
770/tcp cadlock
771/tcp rtip
772/tcp cycleserv2
773/tcp submit
774/tcp rpasswd
776/tcp wpages
780/tcp wpgs
786/tcp concert Concert
787/tcp qsc QSC
801/tcp device
873/tcp rsync rsync
886/tcp iclcnet-locate ICL coNETion locate server
887/tcp iclcnet_svinfo ICL coNETion server info
888/tcp accessbuilder AccessBuilder
900/tcp omginitialrefs OMG Initial Refs
911/tcp xact-backup xact-backup
990/tcp ftps ftp protocol, control, over TLS/SSL
991/tcp nas Netnews Administration System
992/tcp telnets telnet protocol over TLS/SSL
993/tcp imaps imap4 protocol over TLS/SSL
994/tcp ircs irc protocol over TLS/SSL
995/tcp pop3s pop3 protocol over TLS/SSL (was spop3)
996/tcp vsinet vsinet
997/tcp maitrd
998/tcp busboy
999/tcp garcon
1000/tcp cadlock
1010/tcp surf surf
1023/tcp Reserved Reserved
1030/tcp iad1 BBN IAD
1031/tcp iad2 BBN IAD
1032/tcp iad3 BBN IAD
1047/tcp neod1 Sun‘s NEO Object Request Broker
1048/tcp neod2 Sun‘s NEO Object Request Broker
1058/tcp nim nim
1059/tcp nimreg nimreg
1067/tcp instl_boots Installation Bootstrap Proto. Serv.
1068/tcp instl_bootc Installation Bootstrap Proto. Cli.
1080/tcp socks Socks
1083/tcp ansoft-lm-1 Anasoft License Manager
1084/tcp ansoft-lm-2 Anasoft License Manager
1123/tcp murray Murray
1155/tcp nfa Network File Access
1212/tcp lupa lupa
1222/tcp nerv SNI R&D network
1239/tcp nmsd NMSD
1248/tcp hermes
1313/tcp bmc_patroldb BMC_PATROLDB
1314/tcp pdps Photoscript Distributed Printing System
1321/tcp pip PIP
1345/tcp vpjp VPJP
1346/tcp alta-ana-lm Alta Analytics License Manager
1347/tcp bbn-mmc multi media conferencing
1348/tcp bbn-mmx multi media conferencing
1349/tcp sbook Registration Network Protocol
1350/tcp editbench Registration Network Protocol
1352/tcp lotusnote Lotus Note
1353/tcp relief Relief Consulting
1354/tcp rightbrain RightBrain Software
1355/tcp intuitive-edge Intuitive Edge
1356/tcp cuillamartin CuillaMartin Company
1357/tcp pegboard Electronic PegBoard
1358/tcp connlcli CONNLCLI
1359/tcp ftsrv FTSRV
1360/tcp mimer MIMER
1361/tcp linx LinX
1362/tcp timeflies TimeFlies
1363/tcp ndm-requester Network DataMover Requester
1364/tcp ndm-server Network DataMover Server
1365/tcp adapt-sna Network Software Associates
1366/tcp netware-csp Novell NetWare Comm Service Platform
1367/tcp dcs DCS
1368/tcp screencast ScreenCast
1369/tcp gv-us GlobalView to Unix Shell
1370/tcp us-gv Unix Shell to GlobalView
1371/tcp fc-cli Fujitsu Config Protocol
1372/tcp fc-ser Fujitsu Config Protocol
1373/tcp chromagrafx Chromagrafx
1374/tcp molly EPI Software Systems
1375/tcp bytex Bytex
1376/tcp ibm-pps IBM Person to Person Software
1377/tcp cichlid Cichlid License Manager
1378/tcp elan Elan License Manager
1379/tcp dbreporter Integrity Solutions
1380/tcp telesis-licman Telesis Network License Manager
1381/tcp apple-licman Apple Network License Manager
1382/tcp udt_os
1383/tcp gwha GW Hannaway Network License Manager
1384/tcp os-licman Objective Solutions License Manager
1385/tcp atex_elmd Atex Publishing License Manager
1386/tcp checksum CheckSum License Manager
1387/tcp cadsi-lm Computer Aided Design Software Inc LM
1388/tcp objective-dbc Objective Solutions DataBase Cache
1389/tcp iclpv-dm Document Manager
1390/tcp iclpv-sc Storage Controller
1391/tcp iclpv-sas Storage Access Server
1392/tcp iclpv-pm Print Manager
1393/tcp iclpv-nls Network Log Server
1394/tcp iclpv-nlc Network Log Client
1395/tcp iclpv-wsm PC Workstation Manager software
1396/tcp dvl-activemail DVL Active Mail
1399/tcp cadkey-licman Cadkey License Manager
1400/tcp cadkey-tablet Cadkey Tablet Daemon
1402/tcp prm-sm-np Prospero Resource Manager
1403/tcp prm-nm-np Prospero Resource Manager
1404/tcp igi-lm Infinite Graphics License Manager
1405/tcp ibm-res IBM Remote Execution Starter
1406/tcp netlabs-lm NetLabs License Manager
1407/tcp dbsa-lm DBSA License Manager
1408/tcp sophia-lm Sophia License Manager
1409/tcp here-lm Here License Manager
1410/tcp hiq HiQ License Manager
1411/tcp af AudioFile
1412/tcp innosys InnoSys
1413/tcp innosys-acl Innosys-ACL
1414/tcp ibm-mqseries IBM MQSeries
1415/tcp dbstar DBStar
1416/tcp novell-lu6.2 Novell LU6.2
1417/tcp timbuktu-srv1 Timbuktu Service 1 Port
1418/tcp timbuktu-srv2 Timbuktu Service 2 Port
1419/tcp timbuktu-srv3 Timbuktu Service 3 Port
1420/tcp timbuktu-srv4 Timbuktu Service 4 Port
1421/tcp gandalf-lm Gandalf License Manager
1422/tcp autodesk-lm Autodesk License Manager
1423/tcp essbase Essbase Arbor Software
1424/tcp hybrid Hybrid Encryption Protocol
1425/tcp zion-lm Zion Software License Manager
1426/tcp sais Satellite-data Acquisition System 1
1427/tcp mloadd mloadd monitoring tool
1428/tcp informatik-lm Informatik License Manager
1429/tcp nms Hypercom NMS
1430/tcp tpdu Hypercom TPDU
1431/tcp rgtp Reverse Gossip Transport
1432/tcp blueberry-lm Blueberry Software License Manager
1433/tcp ms-sql-s Microsoft-SQL-Server
1434/tcp ms-sql-m Microsoft-SQL-Monitor
1435/tcp ibm-cics IBM CICS
1436/tcp saism Satellite-data Acquisition System 2
1437/tcp tabula Tabula
1438/tcp eicon-server Eicon Security Agent/Server
1439/tcp eicon-x25 Eicon X25/SNA Gateway
1440/tcp eicon-slp Eicon Service Location Protocol
1441/tcp cadis-1 Cadis License Management
1442/tcp cadis-2 Cadis License Management
1443/tcp ies-lm Integrated Engineering Software
1444/tcp marcam-lm Marcam License Management
1445/tcp proxima-lm Proxima License Manager
1446/tcp ora-lm Optical Research Associates License Manager
1447/tcp apri-lm Applied Parallel Research LM
1448/tcp oc-lm OpenConnect License Manager
1449/tcp peport PEport
1450/tcp dwf Tandem Distributed Workbench Facility
1451/tcp infoman IBM Information Management
1452/tcp gtegsc-lm GTE Government Systems License Man
1453/tcp genie-lm Genie License Manager
1454/tcp interhdl_elmd interHDL License Manager
1455/tcp esl-lm ESL License Manager
1456/tcp dca DCA
1457/tcp valisys-lm Valisys License Manager
1458/tcp nrcabq-lm Nichols Research Corp.
1459/tcp proshare1 Proshare Notebook Application
1460/tcp proshare2 Proshare Notebook Application
1461/tcp ibm_wrless_lan IBM Wireless LAN
1462/tcp world-lm World License Manager
1463/tcp nucleus Nucleus
1464/tcp msl_lmd MSL License Manager
1465/tcp pipes Pipes Platform