端口有那些？

端口是什么？都有什么端口？端口有什么用？~

端口是指接口电路中的一些寄存器，这些寄存器分别用来存放数据信息、控制信息和状态信息，相应的端口分别称为数据端口、控制端口和状态端口。
从端口的分配来看，端口被分为固定端口和动态端口两大类：
固定端口（0－1023）：使用集中式管理机制，即服从一个管理机构对端口的指派，这个机构负责发布这些指派。由于这些端口紧绑于一些服务，所以我们会经常扫描这些端口来判断对方是否开启了这些服务，如TCP的21（ftp），80（http），139（netbios），UDP的7（echo），69（tftp）等等一些大家熟知的端口。
动态端口（1024－49151）：这些端口并不被固定的捆绑于某一服务，操作系统将这些端口动态的分配给各个进程，同一进程两次分配有可能分配到不同的端口。不过一些应用程序并不愿意使用操作系统分配的动态端口，他们有其自己的‘商标性’端口，如oicq客户端的4000端口，木马冰河的7626端口等都是固定而出名的。
作用：
有人曾经把服务器比作房子，而把端口比作通向不同房间（服务）的门，如果不考虑细节的话，这是一个不错的比喻。入侵者要占领这间房子，势必要破门而入（物理入侵另说），那么对于入侵者来说，了解房子开了几扇门，都是什么样的门，门后面有什么东西就显得至关重要。
入侵者通常会用扫描器对目标主机的端口进行扫描，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大致提供了哪些服务，进而猜测可能存在的漏洞，因此对端口的扫描可以帮助我们更好的了解目标主机，而对于管理员，扫描本机的开放端口也是做好安全防范的第一步。
根据提供服务类型的不同，端口分为两种，一种是TCP端口，一种是UDP端口。计算机之间相互通信的时候，分为两种方式：
一种是发送信息以后，可以确认信息是否到达，也就是有应答的方式，这种方式大多采用TCP协议；一种是发送以后就不管了，不去确认信息是否到达，这种方式大多采用UDP协议。对应这两种协议的服务提供的端口，也就分为TCP端口和UDP端口。


扩展资料：
保护自己的端口需要做：
1) 查看：经常用命令或软件查看本地所开放的端口，看是否有可疑端口；
2) 判断：如果开放端口中有你不熟悉的，应该马上查找端口大全或木马常见端口等资料（网上多的很），看看里面对你那个可疑端口的作用描述，或者通过软件查看开启此端口的进程来进行判断；
3) 关闭：如果真是木马端口或者资料中没有这个端口的描述，那么应该关闭此端口，你可以用防火墙来屏蔽此端口，也可以用本地连接－TCP/IP－高级－选项－TCP/IP筛选，启用筛选机制来筛选端口；
注意：判断时候要慎重，因为一些动态分配的端口也容易引起你多余的怀疑，这类端口一般比较低，且连续。还有，一些狡猾的后门软件，他们会借用80等一些常见端口来进行通信（穿透了防火墙），令人防不胜防，因此不轻易运行陌生程序才是关键。
参考资料：百度百科——端口

65535个 但是一般使到的也就是十几个，下面是我找的一些常用端口简介，希望对你有帮助 。
1） 公认端口（Well Known Ports）：从0到1023，它们紧密绑定于一些服务。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 用端口对照 端口：0 服务：Reserved 说明：通常用于分析操作系统。这一方法能够工作是因为在一些系统中“0”是无效端口，当你试图使用通常的闭合端口连接它时将产生不同的结果。一种典型的扫描，使用IP地址为0.0.0.0，设置ACK位并在以太网层广播。 端口：1 服务：tcpmux 说明：这显示有人在寻找SGI Irix机器。Irix是实现tcpmux的主要提供者，默认情况下tcpmux在这种系统中被打开。
Irix机器在发布是含有几个默认的无密码的帐户，如：IP、GUEST UUCP、NUUCP、DEMOS 、TUTOR、DIAG、OUTOFBOX等。许多管理员在安装后忘记删除这些帐户。因此HACKER在INTERNET上搜索tcpmux并利用这些帐户。
我们在启动应用的时候经常发现我们需要使用的端口被别的程序占用，但是我们又不知道是被谁占用，这时候我们需要找出“真凶”，如何做到呢？
1、开始---->运行---->cmd，或者是window+R组合键，调出命令

2、输入命令：netstat -an，列出所有端口的情况。

3、也可以直接查看某个具体的端口号有没有被占用，输入如下命令：netstat -aon|findstr "端口号"。例如查看80端口的使用情况：netstat -aon|findstr "80"。

有那些端口?都是干什么的啊?

端口我给你列出来
0=reserved 1=tcpmux 2=compressnet 3=compressnet 4=unassigned 5=remote job entr 6=unassigned 7=echo 8=unassigned 9=discard 10=unassigned 11=active users 12=unassigned 13=daytime 14=unassigned 15=unassigned 16=unassigned 17=quote of the day 18=message send protocol 19=character generator 20=ftp (data) 21=ftp (control) 22=unassigned 23=telnet 24=private mail-system 25=smtp 26=unassigned 27=nsw user system fe 28=unassigned 29=msg icp 30=unassigned 31=msg authentication 32=unassigned 33=display support protocol 34=unassigned 35=private printer server 36=unassigned 37=time 38=route access protocol 39=resource location protocol 40=unassigned 41=graphics 42=host name server 43=who is 44=mpm flags protocol 45=message processing module (recv) 46=mpm-snd, mpm (default send) 47=ni-ftp 48=digital audit daemon 49=login, login host protocol 50=re-mail-ck, remote mail checking protocol 51=imp logical address maintenance 52=xns-time, xns time protocol 53=domain, domain name server 54=xns-ch, xns clearinghouse 55=isi graphics language 56=xns authentication 57=private terminal access 58=xns mail 59=private file service 60=unassigned 61=ni mail 62=aca services 63=unassigned 64=communications integrator (ci) 65=tacacs-database service 66=oracle sql*net 67=bootstrap protocol server 68=bootstrap protocol client 69=trivial file transfer 70=gophergopher 71=remote job service 72=remote job service 73=remote job service 74=remote job service 75=any private dial out service 76=distributed external object store 77=any private rje service 78=vettcpvettcp 79=finger server 80=http 81=hosts2 name server 82=xfer utility 83=mit ml device 84=common trace facility 85=mit ml device 86=micro focus cobol 87=private terminal link 88=kerberos 89=su/mit telnet gateway 90=dnsix securit attribute token map 91=mit dover spooler 92=network printing protocol 93=device control protocol 94=tivoli object dispatcher 95=supdupsupdup 96=dixie protocol specification 97=swift remote vitural file protocol 98=tac newstacnews 99=metagram relay 100=newacct [unauthorized use] 101=nic host name server 102=iso-tsap 103=genesis point-to-point trans net 104=acr-nema digital imag. & comm. 300 105=mailbox name nameserver 106=3com-tsmux3com-tsmux 107=remote telnet service 108=sna gateway access server 109=post office protocol - version 2 110=post office protocol - version 3 111=sun rpc 112=mcidas data transmission protocol 113=authentication service 114=audio news multicast 115=simple file transfer protocol 116=ansa rex notify 117=uucp path service 118=sql servicessqlserv 119=network news transfer protocol 120=cfdptktcfdptkt 121=encore expedited remote pro.call 122=smakynetsmakynet 123=network time protocol 124=ansa rex trader 125=locus pc-interface net map ser 126=unisys unitary login 127=locus pc-interface conn server 128=gss x license verification 129=password generator protocol 130=cisco fnative 131=cisco tnative 132=cisco sysmaint 133=statistics service 134=ingres-net service 135=location service 136=profile naming system 137=netbios name service 138=netbios datagram service 139=netbios session service 140=emfis data service 141=emfis control service 142=britton-lee idm 143=interim mail access protocol v2 144=newsnews 145=uaac protocoluaac 146=iso-ip0iso-tp0 147=iso-ipiso-ip 148=cronus-support 149=aed 512 emulation service 150=sql-netsql-net 151=hemshems 152=background file transfer program 153=sgmpsgmp 154=netscnetsc-prod 155=netscnetsc-dev 156=sql service 157=knet/vm command/message protocol 158=pcmail serverpcmail-srv 159=nss-routingnss-routing 160=sgmp-trapssgmp-traps 161=snmp 162=snmp trap 163=cmip/tcp manager 164=cmip/tcp agent 165=xeroxxns-courier 166=sirius systems 167=nampnamp 168=rsvdrsvd 169=send 170=network postscript 170=network postscript 171=network innovations multiplex 172=network innovations cl/1 173=xyplexxyplex-mux 174=mailq 175=vmnet 176=genrad-muxgenrad-mux 177=x display manager control protocol 178=nextstep window server 179=border gateway protocol 180=intergraphris 181=unifyunify 182=unisys audit sitp 183=ocbinderocbinder 184=ocserverocserver 185=remote-kis 186=kis protocolkis 187=application communication interface 188=plus five's mumps 189=queued file transport 189=queued file transport 190=gateway access control protocol 190=gateway access control protocol 191=prospero directory service 191=prospero directory service 192=osu network monitoring system 193=srmp, spider remote monitoring protocol 194=irc, internet relay chat protocl 195=dnsix network level module audit 196=dnsix session mgt module audit redir 197=directory location service 198=directory location service monitor 199=smux 200=ibm system resource controller 201=at-rtmp appletalk routing maintenance 202=at-nbp appletalk name binding 203=at-3 appletalk unused 204=appletalk echo 205=appletalk unused 206=appletalk zone information 207=appletalk unused 208=appletalk unused 209=trivial authenticated mail protocol 210=ansi z39.50z39.50 211=texas instruments 914c/g terminal 212=atexsstranet 213=ipx 214=vm pwscsvmpwscs 215=insignia solutions 216=access technology license server 217=dbase unix 218=netix message posting protocol 219=unisys arpsuarps 220=interactive mail access protocol v3 221=berkeley rlogind with spx auth 222=berkeley rshd with spx auth 223=certificate distribution center 224=reserved (224-241) 241=reserved (224-241) 242=unassigned# 243=survey measurement 244=unassigned# 245=linklink 246=display systems protocol 247-255 reserved 256-343 unassigned 344=prospero data access protocol 345=perf analysis workbench 346=zebra serverzserv 347=fatmen serverfatserv 348=cabletron management protocol 349-370 unassigned 371=clearcaseclearcase 372=unix listservulistserv 373=legent corporation 374=legent corporation 375=hasslehassle 376=amiga envoy network inquiry proto 377=nec corporation 378=nec corporation 379=tia/eia/is-99 modem client 380=tia/eia/is-99 modem server 381=hp performance data collector 382=hp performance data managed node 383=hp performance data alarm manager 384=a remote network server system 385=ibm application 386=asa message router object def. 387=appletalk update-based routing pro. 388=unidata ldm version 4 389=lightweight directory access protocol 390=uisuis 391=synoptics snmp relay port 392=synoptics port broker port 393=data interpretation system 394=embl nucleic data transfer 395=netscout control protocol 396=novell netware over ip 397=multi protocol trans. net. 398=kryptolankryptolan 399=unassigned# 400=workstation solutions 401=uninterruptible power supply 402=genie protocol 403=decapdecap 404=ncednced 405=ncldncld 406=interactive mail support protocol 407=timbuktutimbuktu 408=prospero resource manager sys. man. 409=prospero resource manager node man. 410=decladebug remote debug protocol 411=remote mt protocol 412=trap convention port 413=smspsmsp 414=infoseekinfoseek 415=bnetbnet 416=silverplattersilverplatter 417=onmuxonmux 418=hyper-ghyper-g 419=arielariel1 420=smptesmpte 421=arielariel2 422=arielariel3 423=ibm operations planning and control start 424=ibm operations planning and control track 425=icadicad-el 426=smartsdpsmartsdp 427=server location 429=ocs_amu 430=utmpsdutmpsd 431=utmpcdutmpcd 432=iasdiasd 433=nnspnnsp 434=mobileip-agent 435=mobilip-mn 436=dna-cmldna-cml 437=comscmcomscm 439=dasp, thomas obermair 440=sgcpsgcp 441=decvms-sysmgtdecvms-sysmgt 442=cvc_hostdcvc_hostd 443=https 444=simple network paging protocol 445=microsoft-ds 446=ddm-rdbddm-rdb 447=ddm-rfmddm-dfm 448=ddm-byteddm-byte 449=as server mapper 450=tservertserver 512=exec, remote process execution 513=login, remote login 514=cmd, exec with auto auth. 514=syslog 515=printer spooler 516=unassigned 517=talk 519=unixtime 520=extended file name server 521=unassigned 522=unassigned 523=unassigned 524=unassigned 526=newdate 530=rpc courier 531=chatconference 532=readnewsnetnews 533=for emergency broadcasts 539=apertus technologies load determination 540=uucp 541=uucp-rlogin 542=unassigned 543=klogin 544=kshell 545=unassigned 546=unassigned 547=unassigned 548=unassigned 549=unassigned 550=new-who 551=unassigned 552=unassigned 553=unassigned 554=unassigned 555=dsf 556=remotefs 557-559=rmonitor 560=rmonitord 561=dmonitor 562=chcmd 563=unassigned 564=plan 9 file service 565=whoami 566-569 unassigned 570=demonmeter 571=udemonmeter 572-599 unassigned ipc server 600=sun ipc server 607=nqs 606=cray unified resource manager 608=sender-initiated/unsolicited file transfer 609=npmp-trapnpmp-trap 610=npmp-localnpmp-local 611=npmp-guinpmp-gui 634=ginadginad 666=doom id software 704=errlog copy/server daemon 709=entrustmanager 729=ibm netview dm/6000 server/client 730=ibm netview dm/6000 send/tcp 731=ibm netview dm/6000 receive/tcp 741=netgwnetgw 742=network based rev. cont. sys. 744=flexible license manager 747=fujitsu device control 748=russell info sci calendar manager 749=kerberos administration 751=pump 752=qrh 754=send 758=nlogin 759=con 760=ns 762=quotad 763=cycleserv 765=webster 767=phonephonebook 769=vid 771=rtip 772=cycleserv2 774=acmaint_dbd 775=acmaint_transd 780=wpgs 786=concertconcert 800=mdbs_daemon 996=central point software 997=maitrd 999=puprouter 1023=reserved 1024=reserved 1025=network blackjack 1030=bbn iad 1031=bbn iad 1032=bbn iad 1067=installation bootstrap proto. serv. 1068=installation bootstrap proto. cli. 1080=socks 1083=anasoft license manager 1084=anasoft license manager 1155=network file access 1222=sni r&d network 1248=hermes 1346=alta analytics license manager 1347=multi media conferencing 1347=multi media conferencing 1348=multi media conferencing 1349=registration network protocol 1350=registration network protocol 1351=digital tool works (mit) 1352=/lotus notelotusnote 1353=relief consulting 1354=rightbrain software 1355=intuitive edge 1356=cuillamartin company 1357=electronic pegboard 1358=connlcliconnlcli 1359=ftsrvftsrv 1360=mimermimer 1361=linx 1362=timefliestimeflies 1363=network datamover requester 1364=network datamover server 1365=network software associates 1366=novell netware comm service platform 1367=dcsdcs 1368=screencastscreencast 1369=globalview to unix shell 1370=unix shell to globalview 1371=fujitsu config protocol 1372=fujitsu config protocol 1373=chromagrafxchromagrafx 1374=epi software systems 1375=bytexbytex 1376=ibm person to person software 1377=cichlid license manager 1378=elan license manager 1379=integrity solutions 1380=telesis network license manager 1381=apple network license manager 1382=udt_os 1383=gw hannaway network license manager 1384=objective solutions license manager 1385=atex publishing license manager 1386=checksum license manager 1387=computer aided design software inc lm 1388=objective solutions database cache 1389=document manager 1390=storage controller 1391=storage access server 1392=print managericlpv-pm 1393=network log server 1394=network log client 1395=pc workstation manager software 1396=dvl active mail 1397=audio active mail 1398=video active mail 1399=cadkey license manager 1400=cadkey tablet daemon 1401=goldleaf license manager 1402=prospero resource manager 1403=prospero resource manager 1404=infinite graphics license manager 1405=ibm remote execution starter 1406=netlabs license manager 1407=dbsa license manager 1408=sophia license manager 1409=here license manager 1410=hiq license manager 1411=audiofileaf 1412=innosysinnosys 1413=innosys-aclinnosys-acl 1414=ibm mqseriesibm-mqseries 1415=dbstardbstar 1416=novell lu6.2novell-lu6.2 1417=timbuktu service 1 port 1417=timbuktu service 1 port 1418=timbuktu service 2 port 1419=timbuktu service 3 port 1420=timbuktu service 4 port 1421=gandalf license manager 1422=autodesk license manager 1423=essbase arbor software 1424=hybrid encryption protocol 1425=zion software license manager 1426=satellite-data acquisition system 1 1427=mloadd monitoring tool 1428=informatik license manager 1429=hypercom nmsnms 1430=hypercom tpdutpdu 1431=reverse gosip transport 1432=blueberry software license manager 1433=microsoft-sql-server 1434=microsoft-sql-monitor 1435=ibm ciscibm-cics 1436=satellite-data acquisition system 2 1437=tabulatabula 1438=eicon security agent/server 1439=eicon x25/sna gateway 1440=eicon service location protocol 1441=cadis license management 1442=cadis license management 1443=integrated engineering software 1444=marcam license management 1445=proxima license manager 1446=optical research associates license manager 1447=applied parallel research lm 1448=openconnect license manager 1449=peportpeport 1450=tandem distributed workbench facility 1451=ibm information management 1452=gte government systems license man 1453=genie license manager 1454=interhdl license manager 1454=interhdl license manager 1455=esl license manager 1456=dcadca 1457=valisys license manager 1458=nichols research corp. 1459=proshare notebook application 1460=proshare notebook application 1461=ibm wireless lan 1462=world license manager 1463=nucleusnucleus 1464=msl license manager 1465=pipes platform 1466=ocean software license manager 1467=csdmbasecsdmbase 1468=csdmcsdm 1469=active analysis limited license manager 1470=universal analytics 1471=csdmbasecsdmbase 1472=csdmcsdm 1473=openmathopenmath 1474=telefindertelefinder 1475=taligent license manager 1476=clvm-cfgclvm-cfg 1477=ms-sna-server 1478=ms-sna-base 1479=dberegisterdberegister 1480=pacerforumpacerforum 1481=airsairs 1482=miteksys license manager 1483=afs license manager 1484=confluent license manager 1485=lansourcelansource 1486=nms_topo_serv 1487=localinfosrvr 1488=docstordocstor 1489=dmdocbrokerdmdocbroker 1490=insitu-confinsitu-conf 1491=anynetgateway 1492=stone-design-1 1493=netmap_lmnetmap_lm 1494=icaica 1495=cvccvc 1496=liberty-lmliberty-lm 1497=rfx-lmrfx-lm 1498=watcom-sqlwatcom-sql 1499=federico heinz consultora 1500=vlsi license manager 1501=satellite-data acquisition system 3 1502=shivashivadiscovery 1503=databeamimtc-mcs 1504=evb software engineering license manager 1505=funk software, inc. 1524=ingres 1525=oracle 1525=prospero directory service non-priv 1526=prospero data access prot non-priv 1527=oracletlisrv 1529=oraclecoauthor 1600=issd 1651=proshare conf audio 1652=proshare conf video 1653=proshare conf data 1654=proshare conf request 1655=proshare conf notify 1661=netview-aix-1netview-aix-1 1662=netview-aix-2netview-aix-2 1663=netview-aix-3netview-aix-3 1664=netview-aix-4netview-aix-4 1665=netview-aix-5netview-aix-5 1666=netview-aix-6netview-aix-6 1986=cisco license management 1987=cisco rsrb priority 1 port 1988=cisco rsrb priority 2 port 1989=cisco rsrb priority 3 port 1989=mhsnet systemmshnet 1990=cisco stun priority 1 port 1991=cisco stun priority 2 port 1992=cisco stun priority 3 port 1992=ipsendmsgipsendmsg 1993=cisco snmp tcp port 1994=cisco serial tunnel port 1995=cisco perf port 1996=cisco remote srb port 1997=cisco gateway discovery protocol 1998=cisco x.25 service (xot) 1999=cisco identification port 2009=whosockami 2010=pipe_server 2011=raid 2012=raid-ac 2013=rad-am 2015=raid-cs 2016=bootserver 2017=terminaldb 2018=rellpack 2019=about 2019=xinupageserver 2020=xinupageserver 2021=xinuexpansion1 2021=down 2022=xinuexpansion2 2023=xinuexpansion3 2023=xinuexpansion4 2024=xinuexpansion4 2025=xribs 2026=scrabble 2027=shadowserver 2028=submitserver 2039=device2 2032=blackboard 2033=glogger 2034=scoremgr 2035=imsldoc 2038=objectmanager 2040=lam 2041=interbase 2042=isis 2043=isis-bcast 2044=primsl 2045=cdfunc 2047=dls 2048=dls-monitor 2065=data link switch read port number 2067=data link switch write port number 2201=advanced training system program 2500=resource tracking system server 2501=resource tracking system client 2564=hp 3000 ns/vt block mode telnet 2784=world wide web - development 3049=ccmail 3264=ccmail, cc:mail/lotus 3333=dec-notes 3984=mapper network node manager 3985=mapper tcp/ip server 3986=mapper workstation server 3421=bull apprise portmapper 3900=unidata udt os 4132=nuts daemonnuts_dem 4133=nuts bootp server 4343=unicall 4444=krb524 4672=remote file access server 5002=radio free ethernet 5010=telepathstarttelelpathstart 5011=telepathattack 5050=multimedia conference control tool 5145=rmonitor_secure 5190=aol, america-online 5300=ha cluster heartbeat 5301=hacl-gs # ha cluster general services 5302=ha cluster configuration 5303=hacl-probe ha cluster probing 5305=hacl-test 6000-6063=x11 x window system 6111=sub-process hp softbench sub-process control 6141/=meta-corp meta corporation license manager 6142=aspentec-lm aspen technology license manager 6143=watershed-lm watershed license manager 6144=statsci1-lm statsci license manager - 1 6145=statsci2-lm statsci license manager - 2 6146=lonewolf-lm lone wolf systems license manager 6147=montage-lm montage license manager 7000=afs3-fileserver file server itself 7001=afs3-callback callbacks to cache managers 7002=afs3-prserver users & groups database 7003=afs3-vlserver volume location database 7004=afs3-kaserver afs/kerberos authentication service 7005=afs3-volser volume management server 7006=afs3-errors error interpretation service 7007=afs3-bos basic overseer process 7008=afs3-update server-to-server updater 7009=afs3-rmtsys remote cache manager service 7010=ups-online onlinet uninterruptable power supplies 7100=x font service 7200=fodms flip 8010=wingate 8181=imail 9535=man
http://cache.baidu.com/c?word=%B6%CB%BF%DA%3B%D3%D0%3B%C4%C7%D0%A9&url=http%3A//bbs%2Exilu%2Ecom/cgi%2Dbin/bbs/view%3Fforum%3D7778765%26message%3D23&b=17&a=16&user=baidu

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延津县13273691748： 计算机的端口除了虚拟端口之外还有什么种类的端口? ？
播居通心： 注册端口(RegisteredPorts)以及动态和/或私有端口(Dynamicand/orPrivatePorts) 以上是对这个问题的回答,希望对您有帮助.

延津县13273691748： 端口一般常用来的有那些? - ？
播居通心： 最常用的web服务端口80 然后是FTP的21端口... windows远程端口3389 邮件服务器的POP3 110端口和SMTP 25端口

延津县13273691748： Linux操作系统有哪些常用端口? ？
播居通心： Linux常用端口 著名端口 1 tcpmux TCP 端口服务多路复用 5 rje 远程作业入口 7 echo Echo 服务 9 discard 用于连接测试的空服务 11 systat 用于列举连接了的端口的系统状...

延津县13273691748： tcp/ip 端口号有哪些 - ？
播居通心： (1)公认端口(WellKnownPorts):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(RegisteredPorts):从1024到49151.它们松散地绑定于...

延津县13273691748： 常用端口有哪些呀? 详细讲下呀 谢谢呀 - ？
播居通心： http 80 ftp 21 smtp 25

延津县13273691748： 电脑默认的网络端口有哪些? - ？
播居通心： 常用网络端口 无论你的服务器中安装的是Windows 2000 Server,还是Windows Server 2003,它们无一例外会在默认安装下开通135端口、137端口、138端口、139端口和445端口.这些端口可以说都是一把“双刃剑”,它们既能为 你提供便...

延津县13273691748： 常用的端口号有哪些?？
播居通心： 这个要看哪些是你常用的 比如:一般网站HTTP的是 80 FTP的是21 信箱POP3是110 信箱SMTP25 TELNET终端是23 远程桌面是3389 不同的网络软件可以自己定义端口号

延津县13273691748： 计算机中常用服务都使用哪些端口 - ？
播居通心： 1:公认端口(well known ports):从0-1023,他们是绑定于一些服务.通常这些端口的通信明确表明了某种服务的协议.比如,21端口是FTP服务所开放的.2:注册端口(registrerd ports):从1024-49151,他们松散的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他目的.比如,许多系统处理动态端口是从1024开始的.3:动态或私有端口(dynamic and/or private ports):从49512-65535,理论上不应该为服务分配这些端口.实际上,计算机通常从1024开始分配动态端口.当然也有例外的,SUN的RPC端口从32768开始.