Abin da ke Port 0 Used For?

Port 0 ba ainihin tashar tashar jiragen ruwa ba ne, amma akwai dalili a gare shi

Ba kamar yawancin tashar jiragen ruwa ba , tashar jiragen ruwa 0 tana tashar jiragen ruwa a TCP / IP sadarwar, ma'anar cewa kada a yi amfani da shi a cikin TCP ko UDP saƙonni.

Port 0 yana da muhimmiyar mahimmanci a cikin shirye-shirye na cibiyar sadarwar , musamman tsara shirye-shirye na Unix, don neman tsarin da aka ba da shi, tashoshi masu dorewa. Salon zero kamar tashar jiragen ruwa ne wanda ya gaya wa tsarin don samo lambar tashar jiragen ruwa mai dacewa.

Gidajen sadarwa a cikin TCP da UDP sun kasance daga nau'in lambar har zuwa 65535. Lambobin shiga a cikin kewayon tsakanin sifili da 1023 an danganta su a matsayin tashoshin yanar gizo ko sanannun mashigai. Kwamitin Ƙididdigar Intanit na Intanet (IANA) yana riƙe da jerin sunayen masu amfani da waɗannan tashar tashar jiragen ruwa a kan intanet, kuma ba a amfani da tashar tashar jiragen ruwa 0 ba.

Ta yaya Port 0 ke aiki a cikin Shirye-shiryen Cibiyar

Sanya sabbin hanyoyin sadarwa ta hanyar sadarwa yana buƙatar a sanya ɗayan tashar tashar jiragen ruwa guda biyu a gefen asusun da kuma makwabta. TCP ko UDP saƙonnin da mai samo asali (source) ya ƙunshi duka lambobin tashar jiragen ruwa don wanda mai karɓar saƙon (manufa) zai iya ba da sakonnin amsawa zuwa ga maƙasudin yarjejeniya.

IANA ya rigaya ya sanya sauti na intanet don yin amfani da intanet kamar sabobin yanar gizo (tashar jiragen ruwa 80), amma yawancin hanyoyin TCP da UDP ba su da tashar tashar su kuma dole su sami daya daga tsarin aiki na su a duk lokacin da suka fara gudu.

Don rarraba tashar tashar tashoshinta, aikace-aikace suna kiran ayyukan TCP / IP kamar ɗaurin () don buƙatar ɗaya. Aikace-aikacen na iya samar da lambar ƙayyadadden (lambar ƙira) don ɗaure () idan sun fi so su nemi takamaiman lamba, amma irin wannan buƙatar na iya kasa saboda wasu aikace-aikacen aikace-aikacen da ke gudana a kan tsarin na iya amfani da shi a halin yanzu.

A madadin, zai iya samar da tashar jiragen ruwa 0 don ɗaure () azaman haɓakar sa a maimakon. Wannan yana haifar da tsarin aiki don bincika ta atomatik kuma ya sake dawo da tashar jiragen ruwa mai dacewa a cikin tashar tashar tashar tashar TCP / IP.

Ka lura cewa aikace-aikacen ba za a ba da tashar jiragen ruwa ba 0 amma maimakon wasu tashar tashar. Amfani da wannan tsari na shirye-shirye yana da inganci. Maimakon kowane aikace-aikacen da ke cike da aiwatar da code don kokarin ƙoƙarin tashar jiragen ruwa har sai sun sami wani aiki mai inganci, aikace-aikace na iya dogara ga tsarin aiki don yin haka.

Unix, Windows, da kuma sauran tsarin aiki sun bambanta kadan a yadda suke amfani da tashar jiragen ruwa 0, amma irin wannan taron ya shafi.

Port 0 da Tsaron Cibiyar

Harkokin hanyar sadarwar da aka tura a yanar gizo don rundunonin sauraro a tashar jiragen ruwa 0 za a iya haifar da su daga magungunan cibiyar sadarwa ko bazata ta hanyar aikace-aikacen da aka tsara ba daidai ba. Sakonnin da aka yi amfani da shi don amsawa ga zirga-zirgar jiragen ruwa na jirgin ruwa zai iya taimakawa masu hari su kara koyo game da halin da kuma hanyoyin sadarwa na waɗannan na'urori.

Yawancin masu bada sabis na intanet (ISPs) toshe hanyar zirga-zirga a kan tashar jiragen ruwa 0 (duka sakonni masu zuwa da masu fita) don taimakawa wajen kare waɗannan abubuwa.