The Transmission Control Protocol (TCP) imagwiritsa ntchito njira zoyankhulirana zomwe zimatchedwa ma doko kuti zigwirizane pakati pa ntchito zosiyanasiyana zomwe zimagwiritsidwa ntchito pa chipangizo chimodzimodzi. Mosiyana ndi ma doko pamakompyuta monga ma doko USB kapena mabomba a Ethernet, maiko a TCP alidi - zolembedwera zosinthika zili pakati pa 0 ndi 65535.
Maiko ambiri a TCP ndi njira zothandizira anthu ambiri zomwe zingatumikidwe ngati zili zofunika koma osakhala osayenera. Komabe madoko ena ochepa omwe amadziwika, amaperekedwa ku ntchito zinazake. Ngakhale ma doko ambiri a TCP ali ndi mapulogalamu omwe salipo, ena ndi otchuka kwambiri.
01 a 08
Gombe la TCP 0
TCP siigwiritsira ntchito pulogalamu 0 kuti iyankhulane pa intaneti, koma chitukukochi chimadziwika bwino kwa olemba mapulogalamu. Mapulogalamu okhwima a TCP amagwiritsira ntchito doko 0 pamsonkhanowo kuti apemphe chidole chomwe chilipo kuti chisankhidwe ndi kupatsidwa ndi ntchito. Izi zimapulumutsa wokonza pulogalamu kuti asankhe ("hardcode") chiwerengero cha doko chomwe sichingagwire bwino ntchito. Zambiri "
02 a 08
Maiko a TCP 20 ndi 21
Ma seva a FTP amagwiritsa ntchito chingwe cha TCP 21 kuti azitsatira mbali zawo za FTP. Seva imamvetsera malamulo a FTP akufika pa doko ili ndikuyankha mogwirizana. Mu yogwira ntchito FTP, seva imagwiritsanso ntchito pulogalamu 20 kuti ayambe kusamutsira deta kubwerera kwa FTP.
03 a 08
Gombe la TCP 22
Kachilitsika Koyera (SSH) imagwiritsa ntchito dolo 22. SSH amaseva amvetsere pa dokolo la zopempha zolowera zolowera kuchokera kwa makasitomala akutali. Chifukwa cha chikhalidwe ichi, malo 22 a seva iliyonse ya anthu nthawi zambiri amatengedwa ndi osokoneza makompyuta ndipo akhala akuyang'anitsitsa kwambiri pachitetezo chotetezera. Otsatira ena a chitetezo amalimbikitsa kuti oyang'anira amasamutsire SSH yawo kumalo ena osiyana kuti ateteze masokawa, pamene ena akutsutsana ndi ntchitoyi.
04 a 08
Madera a UDP 67 ndi 68
Dynamic Host Configuration Protocol (DHCP) maseva amagwiritsira ntchito UDP port 67 kuti amvetsere pempho pamene makasitomala a DHCP akuyankhulana pa doko 68.
05 a 08
Gombe la TCP 80
Mosakayikitsa malowa otchuka kwambiri pa intaneti, phukusi la TCP 80 ndiloperewera kuti ma seva a Webusaiti a HyperText Transfer Protocol (HTTP) amvetsere pazipempha za pawebusaiti.
06 ya 08
Doko la UDP 88
Utumiki wa masewera a masewera a Xbox Live Internet amagwiritsa ntchito nambala zingapo zojambulapo kuphatikizapo port 88 ya UDP.
07 a 08
Madera a UDP 161 ndi 162
Mwachindunji, Simple Network Management Protocol (SNMP) imagwiritsa ntchito UDP port 161 potumiza ndi kulandira zopempha pa intaneti. Zimagwiritsa ntchito UDP port 162 monga chosasinthika popeza misampha ya SNMP kuchokera ku zipangizo zoyendetsedwa.
08 a 08
Mapiri pamwamba pa 1023
Nambala za phukusi za TCP ndi UDP pakati pa 1024 ndi 49151 zimatchedwa madoko olembetsedwa . Internet Inapatsidwa Manambala Olamulira ikulemba mndandanda wa mautumiki ogwiritsa ntchito ma dokowa kuti athe kuchepetsa ntchito zotsutsana.
Mosiyana ndi ma doko omwe ali ndi manambala apang'ono, opanga mautumiki atsopano a TCP / UDP akhoza kusankha nambala yeniyeni kuti alembetse ndi IANA m'malo mokhala ndi nambala yowapatsidwa. Kugwiritsira ntchito madoko olembetsa kumapewa zowonjezera zina zotetezera zomwe zimagwiritsidwa ntchito pamakope okhala ndi manambala ochepa.