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sehlooho: Tsamaiso

Tsamaiso ea Sehlopha

Tlhahlobo ea papiso ea lisebelisoa tse nkehang tsa microwave Arinst vs Anritsu

E hatisitsoe ho

Lisebelisoa tse peli tse tsoang ho moqapi oa Russia "Kroks" li rometsoe bakeng sa tlhahlobo e ikemetseng ea tlhahlobo. Tsena ke limithara tse nyane haholo tsa maqhubu a seea-le-moea, e leng: spectrum analyzer e nang le jenereithara ea mats'oao e hahelletsoeng ka hare, le vector network analyzer (reflectometer). Lisebelisoa ka bobeli li na le mefuta e fapaneng ea ho fihla ho 6,2 GHz ka lebelo le holimo. Ho ne ho e-na le thahasello ea ho utloisisa hore na tsena ke “limithara tse bontšang” pokothong e ’ngoe feela (libapalisoa), kapa lisebelisoa tse hlokomelehang, hobane moetsi o li beha: […]

Lenaneo la Asynchronous ho JavaScript (Callback, Promise, RxJs)

E hatisitsoe ho

Lumelang bohle. Sergey Omelnitsky o buisana le eena. Haufinyane tjena ke ile ka amohela molaetsa oa lenaneo le sebetsang, moo ke ileng ka bua ka asynchrony ho JavaScript. Kajeno ke rata ho ngola lintlha ka boitsebiso bona. Empa pele re qala taba ea sehlooho, re lokela ho ngola selelekela. Joale ha re qaleng ka litlhaloso: stack le queue ke eng? Stack ke pokello eo likarolo tsa eona [...]

Retrospective: kamoo liaterese tsa IPv4 li felisitsoeng kateng

E hatisitsoe ho

Geoff Huston, moenjineri ea ka sehloohong oa lipatlisiso ho mongolisi oa marang-rang APNIC, o boletse esale pele hore liaterese tsa IPv4 li tla fela ka 2020. Letotong le lecha la lisebelisoa, re tla nchafatsa tlhahisoleseling mabapi le hore na liaterese li felisitsoe joang, ke bo-mang ba neng ba ntse ba e-na le tsona, le hore na hobaneng sena se etsahetse. / Unsplash / Loïc Mermilliod Hobaneng ha liaterese li fela Pele u fetela pale ea kamoo letamo le "omileng" […]

Litlhaselo tsa Cryptographic: tlhaloso ea likelello tse ferekaneng

E hatisitsoe ho

Ha u utloa lentsoe "cryptography," batho ba bang ba hopola password ea bona ea WiFi, senotlolo se setala haufi le aterese ea sebaka sa bona sa marang-rang seo ba se ratang, le hore na ho thata hakae ho kena lengolo-tsoibila la motho e mong. Ba bang ba hopola letoto la bofokoli lilemong tsa morao tjena ka mantsoe a khutsufalitsoeng (DROWN, FREAK, POODLE...), li-logo tsa setaele le temoso ea ho nchafatsa sebatli sa hau ka potlako. Cryptography e akaretsa tsena tsohle, empa ntlha e fapane. Taba ke hore ho na le moeli o motle pakeng tsa [...]

Boholo ba li-directory ha bo tšoanele boiteko ba rona

E hatisitsoe ho

Sena ha se na thuso ho hang, ha se hlokahale ts'ebelisong e sebetsang, empa poso e nyane e qabolang ka li-directory ho * nix system. Ke Labohlano. Nakong ea lipuisano, hangata ho hlaha lipotso tse bora mabapi le li-inodes, ntho e 'ngoe le e' ngoe-ke-lifaele, tseo batho ba 'maloa ba ka li arabang ka kelello. Empa haeba u cheka ka botebo, u ka fumana lintho tse thahasellisang. Ho utloisisa poso, lintlha tse 'maloa: ntho e' ngoe le e 'ngoe ke faele. directory e boetse e [...]

Tšebeliso ea matla ka ofising: mokhoa oa ho fokotsa tšebeliso ea matla ea 'nete?

E hatisitsoe ho

Re bua haholo ka hore na litsi tsa data li ka boloka matla joang ka ho beha lisebelisoa tse bohlale, moea o ntlafetseng, le tsamaiso ea matla a bohareng. Kajeno re tla bua ka hore na u ka boloka matla joang ofising. Ho fapana le litsi tsa data, motlakase liofising ha o hloke feela ka theknoloji, empa hape le ke batho. Ka hona, ho fumana coefficient ea PUE mona ho […]

Lipalopalo tsa sebaka le polokelo ea hau e nyane

E hatisitsoe ho

Webalizer le Google Analytics li nthusitse ho utloisisa se etsahalang liwebosaeteng ka lilemo tse ngata. Hona joale kea utloisisa hore li fana ka boitsebiso bo fokolang haholo ba bohlokoa. Ho fihlella faele ea hau ea access.log, ho utloisisa lipalo-palo ho bonolo haholo le ho kenya ts'ebetsong lisebelisoa tsa mantlha tse kang sqlite, html, puo ea sql le mongolo ofe kapa ofe […]

Ho etela ka melumo e tala e khanyang

E hatisitsoe ho

Bothata ba bohlokoa ka ho fetisisa ba lipalangoang St. Petersburg ke marokho. Bosiu, ka lebaka la bona, u tlameha ho baleha tavern ntle le ho qeta biri ea hau. Ho lokile, kapa lefa tekesi habeli joalo ka tloaelo. Hoseng, bala nako ka hloko e le hore hang ha borokho bo koetsoe, u fihle seteisheneng joaloka mongoose ea mahlahahlaha. Ha re […]

Na Kafka ho Kubernetes e ntle?

E hatisitsoe ho

Lumela, Habr! Ka nako e 'ngoe, re ne re le ba pele ba ho hlahisa sehlooho sa Kafka' marakeng oa Russia le ho tsoela pele ho shebella tsoelo-pele ea eona. Haholo-holo, re fumane taba ea tšebelisano lipakeng tsa Kafka le Kubernetes e khahla. Sengoloa sa tlhahlobo (le se hlokolosi) mabapi le sehlooho sena se phatlalalitsoe ho blog ea Confluent morao koana ka Mphalane selemong se fetileng tlasa bongoli ba Gwen Shapira. Kajeno re […]

Digest tse Mahareng tsa Weekly #3 (26 Jul - 2 Aug 2019)

E hatisitsoe ho

Ba ikemiselitseng ho tela bolokolohi ba bona hore ba fumane tšireletso ea nakoana kotsing ha ba tšoaneloe ke tokoloho kapa tšireletseho. - Benjamin Franklin Tšimoloho ena e reretsoe ho eketsa thahasello ea Sechaba tabeng ea boinotši, eo ho latela liketsahalo tsa morao-rao e ntseng e sebetsa ho feta leha e le neng pele. Lenaneong: Ba boholong ba setifikeiti sa Medium Root CA ba hlahisa netefatso ea setifikeiti ba sebelisa likarolo tsa protocol tsa OCSP […]

Liithuti tse hlano le tse tharo li ile tsa abela mabenkele a bohlokoa

E hatisitsoe ho

Kapa kamoo re ngotseng laeborari ea C++ ea C++ bakeng sa ZooKeeper, etcd le Consul KV Lefats'eng la litsamaiso tse ajoang, ho na le mesebetsi e mengata e tloaelehileng: ho boloka tlhahisoleseling mabapi le sebopeho sa sehlopha, ho laola tlhophiso ea li-node, ho bona li-node tse fosahetseng, ho khetha. moetapele, le ba bang. Ho rarolla mathata ana, ho entsoe litsamaiso tse khethehileng tse ajoang - lits'ebeletso tsa khokahano. Joale re tla thahasella tse tharo tsa tsona: ZooKeeper, […]

KVM (tlase) VDI e nang le mechini e lahloang e sebelisang bash

E hatisitsoe ho

Sehlooho sena se reretsoe mang?Sengoloa sena se ka khahla batsamaisi ba sistimi ba neng ba tobane le mosebetsi oa ho theha tšebeletso ea mesebetsi ea nako e le 'ngoe. Selelekela Lefapha la ts'ehetso la IT la k'hamphani e nyane e ntseng e tsoela pele ka matla e nang le marang-rang a manyane a libaka le ile la kopuoa ho hlophisa "liteishene tsa ho itšebeletsa" hore li sebelisoe ke bareki ba bona ba kantle. Liteishene tsena li ne li lokela ho sebelisoa bakeng sa ho ingolisa ho li-portal tsa k'hamphani tse kantle, ho jarolla [...]

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