Kodi njira yodutsa (Bypass) ndi chiyani?
Zipangizo Zachitetezo cha Network zimagwiritsidwa ntchito kwambiri pakati pa maukonde awiri kapena kuposerapo, monga pakati pa netiweki yamkati ndi netiweki yakunja. Zipangizo Zachitetezo cha Network kudzera mu kusanthula kwa paketi ya netiweki, kuti zidziwe ngati pali chiwopsezo, pambuyo pokonza motsatira malamulo ena oyendetsera, kutumiza paketi kuti izime, ndipo ngati zida zachitetezo cha netiweki sizinagwire ntchito bwino, Mwachitsanzo, pambuyo pa kulephera kwa magetsi kapena kugwa, magawo a netiweki olumikizidwa ku chipangizocho amalekanitsidwa. Pankhaniyi, ngati netiweki iliyonse ikufunika kulumikizidwa, ndiye kuti Bypass iyenera kuwonekera.
Ntchito ya Bypass, monga momwe dzinalo likusonyezera, imalola maukonde awiriwa kulumikizana popanda kudutsa mu dongosolo la chipangizo chachitetezo cha netiweki kudzera mu mkhalidwe winawake woyambitsa (kulephera kwa magetsi kapena kugwa). Chifukwa chake, chipangizo chachitetezo cha netiweki chikalephera, netiweki yolumikizidwa ku chipangizo cha Bypass imatha kulumikizana. Zachidziwikire, chipangizo cha netiweki sichimakonza mapaketi pa netiweki.
Kodi njira yogwiritsira ntchito Bypass imagawidwa bwanji?
Bypass imagawidwa m'njira zowongolera kapena zoyambitsa, zomwe ndi izi:
1. Yoyambitsidwa ndi magetsi. Mu mawonekedwe awa, ntchito ya Bypass imayatsa chipangizocho chikazimitsidwa. Ngati chipangizocho chizimitsidwa, ntchito ya Bypass imazimitsidwa nthawi yomweyo.
2. Yolamulidwa ndi GPIO. Mukalowa mu OS, mutha kugwiritsa ntchito GPIO kuyendetsa madoko enaake kuti muwongolere switch ya Bypass.
3. Kulamulira pogwiritsa ntchito Watchdog. Iyi ndi njira yowonjezera ya 2. Mutha kugwiritsa ntchito Watchdog kuti muwongolere kuyatsa ndi kuletsa pulogalamu ya GPIO Bypass kuti muwongolere momwe zinthu zilili pa Bypass. Mwanjira imeneyi, ngati nsanjayo yagwa, Bypass ikhoza kutsegulidwa ndi Watchdog.
Mu ntchito zenizeni, zinthu zitatuzi nthawi zambiri zimakhalapo nthawi imodzi, makamaka njira ziwiri 1 ndi 2. Njira yogwiritsira ntchito nthawi zambiri ndi iyi: chipangizocho chikazima, Bypass imayatsidwa. Chipangizocho chikayatsidwa, Bypass imayatsidwa ndi BIOS. BIOS ikatenga chipangizocho, Bypass imayatsidwabe. Zimitsani Bypass kuti pulogalamuyo igwire ntchito. Pa nthawi yonse yoyambira, palibe kulumikizidwa kwa netiweki.
Kodi mfundo ya Bypass implementation ndi iti?
1. Mulingo wa Zida
Pa mulingo wa zida, ma relay amagwiritsidwa ntchito makamaka kuti akwaniritse Bypass. Ma relay amenewa amalumikizidwa ku zingwe za chizindikiro cha madoko awiri a netiweki ya Bypass. Chithunzi chotsatirachi chikuwonetsa momwe relay imagwirira ntchito pogwiritsa ntchito chingwe chimodzi cha chizindikiro.
Tengani chitsanzo cha choyambitsa magetsi. Ngati magetsi alephera, switch yomwe ili mu relay idzafika pa 1, kutanthauza kuti, Rx pa RJ45 interface ya LAN1 idzalumikizana mwachindunji ndi RJ45 Tx ya LAN2, ndipo chipangizocho chikayatsidwa, switchyo idzalumikizana ndi 2. Mwanjira imeneyi, ngati kulumikizana kwa netiweki pakati pa LAN1 ndi LAN2 kukufunika, muyenera kuchita izi kudzera mu pulogalamu yomwe ili pa chipangizocho.
2. Mulingo wa Mapulogalamu
Mu gulu la Bypass, GPIO ndi Watchdog amatchulidwa kuti amayang'anira ndikuyambitsa Bypass. Ndipotu, njira ziwiri zonsezi zimayendetsa GPIO, kenako GPIO imalamulira relay pa hardware kuti ipange kulumpha koyenera. Makamaka, ngati GPIO yofananayo yayikidwa pamlingo wapamwamba, relay idzalumphira pamalo 1 motsatana, pomwe ngati chikho cha GPIO chayikidwa pamlingo wotsika, relay idzalumphira pamalo 2 motsatana.
Pa Watchdog Bypass, kwenikweni imawonjezedwa Watchdog control Bypass potengera GPIO control pamwambapa. Watchdog ikayamba kugwira ntchito, ikani zochita kuti zidutse pa BIOS. Dongosololi limayatsa ntchito ya watchdog. Watchdog ikayamba kugwira ntchito, netiweki yofananira imayatsidwa ndipo chipangizocho chimalowa mu bypass state. Ndipotu, Bypass imayendetsedwanso ndi GPIO, koma pankhaniyi, kulemba kwa GPIO kwa magawo otsika kumachitika ndi Watchdog, ndipo palibe pulogalamu yowonjezera yomwe ikufunika kuti mulembe GPIO.
Ntchito ya hardware Bypass ndi ntchito yofunika kwambiri ya zinthu zachitetezo cha netiweki. Chipangizocho chikazima kapena kugwa, madoko amkati ndi akunja amalumikizidwa kuti apange chingwe cha netiweki. Mwanjira imeneyi, kuchuluka kwa deta kumatha kudutsa mwachindunji mu chipangizocho popanda kukhudzidwa ndi momwe chipangizocho chilili panopa.
Kugwiritsa Ntchito Kwambiri (HA):
Mylinking™ imapereka njira ziwiri zopezera zambiri (HA), Active/Standby ndi Active/Active. Kuyika Active Standby (kapena active/passive) ku zida zothandizira kuti zipereke kulephera kuchokera ku zipangizo zoyambira kupita ku zosungira. Ndipo Active/Active Imagwiritsidwa ntchito ku maulalo owonjezera kuti ipereke kulephera pamene chipangizo chilichonse chogwira ntchito chalephera.
Mylinking™ Bypass TAP imathandizira zida ziwiri zowonjezera, zomwe zitha kugwiritsidwa ntchito mu yankho la Active/Standby. Chimodzi chimagwira ntchito ngati chipangizo chachikulu kapena "Active". Chida cha Standby kapena "Passive" chimalandirabe anthu nthawi yeniyeni kudzera mu mndandanda wa Bypass koma sichimaonedwa ngati chipangizo cha inline. Izi zimapangitsa kuti "Hot Standby" ichepe. Ngati chipangizo chogwira ntchito chalephera ndipo Bypass TAP yasiya kulandira kugunda kwa mtima, chipangizo choyimirira chimayamba kugwira ntchito ngati chipangizo chachikulu ndipo chimabwera pa intaneti nthawi yomweyo.
Kodi ndi Ubwino Wotani womwe mungapeze potengera Bypass yathu?
1-Gawani kuchuluka kwa magalimoto musanayambe komanso mutatha kugwiritsa ntchito chida chamkati (monga WAF, NGFW, kapena IPS) ku chida chakunja kwa gulu
2-Kuyang'anira zida zambiri zomwe zili mkati nthawi imodzi kumathandiza kuti chitetezo chikhale chosavuta komanso kuchepetsa zovuta za netiweki
3-Imapereka kusefa, kusonkhanitsa, ndi kulinganiza katundu pa maulalo olowera
4-Chepetsani chiopsezo cha nthawi yopuma yosakonzekera
5-Kulephera, kupezeka kwakukulu [HA]
Nthawi yotumizira: Disembala-23-2021
