I-Netfilter wuhlaka olunikezwa i-Linux kernel evumela imisebenzi ehlukahlukene ehlobene nenethiwekhi ukuthi isetshenziswe ngendlela yezibambi ezenziwe ngokwezifiso. … I-Netfilter imele isethi yamahhuku ngaphakathi kwe-Linux kernel, evumela amamojula athile e-kernel ukubhalisa imisebenzi yokuphinda ushayele ngesitaki sokuxhumana se-kernel.
Uyini umehluko phakathi kwe-iptables ne-netfilter?
Kungase kube khona ukudideka mayelana nomehluko phakathi kwe-Netfilter nama-iptables. I-Netfilter iyi- ingqalasizinda; iyi-API eyisisekelo enikezwa i-Linux 2.4 kernel yezinhlelo zokusebenza ezifuna ukubuka nokukhohlisa amaphakethe enethiwekhi. I-Iptables iyisixhumi esibonakalayo esisebenzisa i-Netfilter ukuze ihlukanise futhi isebenze ngamaphakethe.
Isebenza kanjani i-netfilter ku-Linux?
Izingwegwe ze-netfilter ziwuhlaka ngaphakathi kwe-Linux kernel lokho ivumela amamojula e-kernel ukubhalisa imisebenzi yokuphinda ushayele ezindaweni ezihlukene zesitaki senethiwekhi ye-Linux. Umsebenzi wokushayela emuva obhalisiwe ube usubizwa emuva kuwo wonke amaphakethe anqamula ihhuku efanele ngaphakathi kwesitaki senethiwekhi ye-Linux.
Ayini izingwegwe ze-netfilter?
Ngamanye amazwi, i-netfilter iyithuluzi elikunikeza amandla okusebenzisa ama-callback ukuze uhlaziye, uguqule noma usebenzise iphakethe. I-Netfilter inikeza okuthile okubizwa ngokuthi ama-netfilter hooks, okungukuthi indlela yokusebenzisa ama-callbacks ukuze uhlunge amaphakethe ngaphakathi kwe-kernel.
Kuyini ukulandelela uxhumano lwe-netfilter?
Ukulandelela uxhumo (“conntrack”) isici esiyinhloko sesitaki senethiwekhi ye-Linux kernel. Ivumela i-kernel ukugcina umkhondo wakho konke ukuxhumana okunengqondo kwenethiwekhi noma ukugeleza, futhi ngaleyo ndlela akhombe wonke amaphakethe akha ukugeleza ngakunye ukuze akwazi ukusingathwa ndawonye ngokungaguquki.
Ingabe i-netfilter iyi-firewall?
I-Netfilter imele isethi yamahhuku ngaphakathi kwe-Linux kernel, evumela amamojula athile e-kernel ukubhalisa imisebenzi yokuphinda ushayele ngesitaki sokuxhumana se-kernel.
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I-Netfilter.
| Ukukhishwa okuzinzile | 5.13.8 (4 Agasti 2021) [±] |
|---|---|
| uhlelo Operating | Linux |
| Uhlobo | Imojuli ye-Linux kernel Packet filter/firewall |
| License | GNU GPL |
| Iwebhusayithi | netfilter.org |
Iyini i-Iproute2 ku-Linux?
Iproute2 i iqoqo lezinsiza zokulawula inethiwekhi ye-TCP/IP nokulawulwa kwethrafikhi ku-Linux. … Iphrojekthi /etc/net ihlose ukusekela ubuchwepheshe benethiwekhi besimanje abaningi, njengoba ingasebenzisi ifconfig futhi ivumela umlawuli wesistimu ukuthi asebenzise zonke izici ze-iproute2, okuhlanganisa nokulawulwa kwethrafikhi.
Yini i-netfilter Ubuntu?
I-Linux kernel ku-Ubuntu inikeza a uhlelo lokuhlunga iphakethe ebizwa ngokuthi i-netfilter, kanye nesixhumi esibonakalayo esivamile sokukhohlisa isihlungi se-netfilter ama-iptable suite wemiyalelo. … ufw inikeza uhlaka lokuphatha i-netfilter, kanye nesixhumi esibonakalayo somugqa womyalo wokukhohlisa i-firewall.
Yini i-mangle ku-Linux?
Itafula le-mangle esetshenziswa ukuguqula izihloko ze-IP zephakethe ngezindlela ezahlukahlukene. Isibonelo, ungalungisa inani le-TTL (Isikhathi Sokuphila) lephakethe, noma ukwandise noma unciphise inani lama-hop enethiwekhi avumelekile iphakethe elingawagcina. Ezinye izihloko ze-IP zingashintshwa ngezindlela ezifanayo.
Ngazi kanjani uma i-netfilter ifakiwe?
Nokho, ungakwazi ukuhlola kalula isimo sama-iptables nge umyalo we-systemctl isimo se-iptables. service noma mhlawumbe umyalo wesimo se-iptables wesevisi - kuya ngokusatshalaliswa kwakho kweLinux. Ungakwazi futhi ukubuza ama-iptables ngomyalo othi iptables -L ozobhala imithetho esebenzayo.
Yini i-netfilter eqhubekayo?
DESCRIPTION. i-netfilter-persistent isebenzisa isethi yama-plugin ukuze ilayishe, ishaye futhi ilondoloze imithetho yesihlungi se-netfilter ngesikhathi sokuqalisa kanye nesikhathi sokuma. Ama-plugin angabhalwa nganoma yiluphi ulimi olufanelekile futhi agcinwe kokuthi /usr/share/netfilter-persistent/plugins.d.