Yadda ake saita uwar garken WireGuard VPN akan Ubuntu 20.04

A al'adance, aiwatar da VPN ya wanzu ta hanyoyi biyu. In-kernel VPN aiwatarwa kamar IPsec yana aiwatar da aikin kowane fakitin crypto aiki mai nauyi a cikin kernel a cikin yanayin "bump-in-the-tack" (watau tsakanin tari na IP da direbobin cibiyar sadarwa) . Wannan yana ba da sauri saboda babu wani musanya mahallin mahallin tsakanin kernel da sarari mai amfani yayin sarrafa fakiti. Amma ya zo tare da babban sarkar gudanarwa a cikin jirgin sarrafa sararin samaniya daban (misali, IKE).

Yadda ake toshe takamaiman wakilai masu amfani akan sabar gidan yanar gizo na Nginx

Tambaya: Na lura cewa wasu mutummutumi na kan ziyarci gidan yanar gizona mai ƙarfi ta Nginx kuma suna bincikar sa da ƙarfi, suna ƙarewa da ɓarna da albarkatu na sabar yanar gizo da yawa. Ina ƙoƙarin toshe waɗancan robobi bisa la'akari da kirtani-masu amfani. Ta yaya zan iya toshe takamaiman wakilin mai amfani akan sabar gidan yanar gizon Nginx?

Intanit na zamani yana cike da ɓangarori daban-daban na mutum-mutumi da masu rarrafe irin su malware bots, spamb

Yadda ake gwada saurin uwar garken DNS akan Linux

Ba tare da saitin hannu ba, Linux ɗinku za a saita don amfani da sabis na DNS wanda ISP ko ƙungiyar ku ke bayarwa. Idan ba ku gamsu da tsoffin sabis na DNS ba, kuna iya yin la'akari da yin amfani da sauran ayyukan DNS na jama'a kamar Google DNS, OpenDNS, da sauransu. mafi kyawun DNS a gare ku.

A Linux, akwai buɗaɗɗen tushen kayan aiki na DNS mai suna namebench wanda zai iya taimaka maka nemo mafi kyawun sabar DNS don amfani. namebench na iya aiki a yanayin layi

Menene kyawawan kayan aikin benchmarking sabar yanar gizo don Linux

Dangane da aikin sabar gidan yanar gizo, akwai abubuwa daban-daban da yawa a cikin wasa, misali, ƙirar aikace-aikacen gaba-gaba, latency na cibiyar sadarwa/bandwidth, saitin sabar yanar gizo, cache-gefen uwar garken, iyawar kayan masarufi, nauyin uwar garke na rabawa. hosting, da sauransu. Don kwatantawa da haɓaka aikin sabar gidan yanar gizo a ƙarƙashin nau'ikan abubuwa iri-iri, muna yawan yin gwajin lodi (ko gwajin damuwa) ta amfani da kayan aikin micro-benchmark sabar yanar gizo. Kayan aik

Yadda ake saita iyakar adadin bandwidth na QoS akan mu'amalar hanyar sadarwa ta XenServer VM

A cikin mahalli na VM masu yawan haya, kuna buƙatar ware bandwidth na cibiyar sadarwa daidai ga duk masu haya/VM ɗin da ke akwai, kamar yadda babu wanda VM zai iya cinye albarkatun cibiyar sadarwa da kanta. Ko da a cikin mahallin mai amfani guda ɗaya, ƙila za ku so ku ayyana manufofin QoS don VM ɗinku (kamar madaidaicin mu'amalar bandwidth) saboda dalilai daban-daban.

Idan kana amfani da XenServer (yanzu an sake masa suna zuwa "Citrix Hypervisor") a matsayin mai hawan ka, ya kamata ka s

Yadda ake amfani da facin sabunta XenServer

Citrix yana rarraba faci ko hotfixes na XenServer (yanzu an sake masa suna zuwa "Citrix Hypervisor") akai-akai, don gyara kwari ko sabunta fasalin tsaro. Facin XenServer da aka ba zai iya dogaro da wasu gyare-gyare, a cikin wannan yanayin ba za ku kasa shigar da facin ba tare da fara aiwatar da duk gyare-gyaren dogaro da farko ba. Idan kuna son yin amfani da faci akan mai masaukin ku na XenServer, zaku iya amfani da software na abokin ciniki na XenCenter ko XenServer Command Line interface (C

Yadda ake amfani da uwar garken DNS na al'ada akan tebur na Ubuntu

A cikin Linux, an ƙayyade sabar DNS a cikin /etc/resolv.conf. Koyaya, hanyar da ta dace don tsata saitunan DNS na al'ada akan tebur na Ubuntuba ta yin gyaggyarawa da hannu /etc/resolv.conf, amma ta amfani da keɓantaccen tsarin sarrafa cibiyar sadarwa na tushen GUI wanda ke sarrafawa. abun ciki na /etc/resolv.conf.

Tsohuwar irin wannan shirin da tebur na Ubuntu ke amfani da shi ana kiransa Network Manager, wanda ke da alhakin daidai

Yadda ake fara VMware uwar garken nesa na nesa ba tare da mu'amalar gidan yanar gizo ba

A cikin VMware Server, ana samun damar na'ura mai kwakwalwa don injunan kama-da-wane (VMs) ta amfani da filogin na'ura mai nisa na VM na masu binciken gidan yanar gizo. Duk da haka, kamar yadda VMware Server ba ta da goyon bayan VMware, toshe-shigan na'urar wasan bidiyo mai nisa bai yi amfani da shi ba a cikin sabbin masu binciken gidan yanar gizo. Misali, filogin na'ura mai nisa na VM ya karye don sigar Firefox 3.6 da sama. Lokacin da kuke ƙoƙarin ƙaddamar da taga VM console akan sabuwar Fir

Yadda ake clone VM a cikin VMware Server 2.0

Lokacin da kuke buƙatar ƙirƙirar VM da yawa tare da shigar da vanilla Linux, rufewa VM da ke akwai yana adana lokaci tare da shigarwa da daidaita sabbin VMs. Idan kana amfani da VMware Workstation, VM cloning tsarin yana inganta tare da ginannen mayen injin na'ura na Clone Virtual. Koyaya, idan kuna amfani da VMware Server, ba shi da irin wannan aikin, kuma kuna buƙatar clone VMs da hannu. Domin clone VM a cikin VMware Server 2.0, kuna iya bin waɗannan umarnin mataki-mataki.<

Yadda ake canza ma'ajiyar ma'ajiyar gida ta XenServer daga LVM zuwa EXT

Ta hanyar tsoho, XenServer (yanzu an sake masa suna "Citrix Hypervisor") ƙirƙirar ma'ajiyar ma'ajiyar gida mai nau'in LVM (SR). SR na gida-nau'in LVM baya goyan bayan tsararrun rumbun kwamfyuta na VHD, don haka ƙila bazai zama zaɓi mai kyau ba lokacin da kake amfani da XenServer tare da OpenStack wanda ke buƙatar samun dama ga fayilolin VHD ɗaya don hoton VM da ƙaura. Tare da nau'in EXT na gida SR, zaku iya samun dama ga fayilolin VHD kai tsaye.

Idan kuna son canza ma'ajiyar ajiyar gid