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Qeb: Qhov Kev tswj hwm

Pawg tswj hwm

DBA bot Joe. Anatoly Stansler (Postgres.ai)

Luam tawm rau

Yuav ua li cas tus tsim tawm backend nkag siab tias SQL query yuav ua haujlwm zoo hauv kev tsim khoom? Hauv cov tuam txhab loj lossis loj hlob sai, tsis yog txhua tus tuaj yeem nkag mus rau "cov khoom lag luam". Thiab nrog kev nkag mus, tsis yog txhua cov lus nug tuaj yeem tshawb xyuas tsis mob, thiab tsim cov ntawv luam ntawm cov ntaub ntawv feem ntau siv sij hawm ntau teev. Txhawm rau daws cov teeb meem no, peb tsim DBA dag - Joe. Nws tau ua tiav […]

2. Kev cob qhia cov neeg siv hauv cov hauv paus ntawm kev ruaj ntseg cov ntaub ntawv. Phishman

Luam tawm rau

Peb txuas ntxiv qhia koj mus rau lub ntiaj teb uas tawm tsam phishing, kawm txog cov hauv paus ntawm kev tsim vaj tse thiab tsis txhob hnov ​​​​qab qhia nws cov neeg ua haujlwm. Niaj hnub no peb cov qhua yog cov khoom Phishman. Qhov no yog ib qho ntawm TS Solution cov neeg koom tes, muab cov txheej txheem automated rau kev sim thiab kev cob qhia cov neeg ua haujlwm. Luv luv txog nws lub tswv yim: Txheeb xyuas qhov xav tau kev cob qhia ntawm cov neeg ua haujlwm tshwj xeeb. Cov chav kawm xyaum thiab theoretical rau cov neeg ua haujlwm […]

Qhov kev ua tau zoo ntawm kev faib xam ntau tshaj 81 lab petaflops, tab sis kev tshawb fawb tau tsuas yog 470, koj puas tau npaj koom nrog?

Luam tawm rau

Tsis ntev los no, ib qho ntawm cov khoos phis tawj faib - SETI@Home, uas tau siv los tshawb nrhiav lub teeb liab ntawm lub hauv paus ntse ntse, tshuaj xyuas cov ntaub ntawv tau los ntawm 300-meter xov tooj cua telescope hauv Arecibo, uas tam sim no raug kaw, kuj tau tshaj tawm nws kaw, txij li tag nrho. cov ntaub ntawv los ntawm lub sijhawm lub koob yees duab tau muab tso rau hauv kev ua haujlwm thiab ua ntej nws kaw tau ua tiav tiav. Qhov no tau ua tiav ua tsaug rau ntau lab tus neeg tuaj yeem pab dawb [...]

Tus thawj coj nyiag computers los ua tus thawj coj hauv SETI@Home

Luam tawm rau

SETI@Home, ib txoj haujlwm faib rau kev tshaj tawm xov tooj cua ntawm qhov chaw, pib ntau tshaj kaum xyoo dhau los. Qhov no yog lub ntiaj teb loj tshaj plaws kev faib xam qhov project, thiab ntau ntawm peb twb tau siv los ua ib qho screensaver zoo nkauj. Yog vim li cas kuv thiaj li thov txim rau Brad Niesluchowski, tus thawj coj ntawm lub tsev kawm ntawv hauv Arizona uas tau raug rho tawm haujlwm vim mob siab rau hauv kev tshawb nrhiav kev vam meej hauv ntiaj teb. Yuav ua li cas […]

Yuav ua li cas siv HashiCorp Waypoint los koom tes nrog GitLab CI / CD

Luam tawm rau

HashiCorp qhia tawm qhov tshiab Waypoint project ntawm HashiCorp Digital. Nws siv HCL-raws li cov ntaub ntawv los piav qhia txog kev tsim, xa tawm, thiab tso tawm cov ntawv thov rau ntau lub platform huab, xws li Kubernetes rau AWS rau Google Cloud Run. Koj tuaj yeem xav txog Waypoint li Terraform thiab Vagrant ua ke los piav qhia txog cov txheej txheem ntawm kev tsim, xa khoom, thiab tso koj daim ntawv thov. […]

Nkag siab qhov sib txawv ntawm Data Mining thiab Data Extraction

Luam tawm rau

Ob cov ntaub ntawv science buzzwords confuse ntau tus neeg. Cov ntaub ntawv Mining feem ntau nkag siab yuam kev raws li kev rho tawm thiab khaws cov ntaub ntawv, tab sis qhov tseeb nws yog qhov nyuaj dua. Hauv cov ntawv tshaj tawm no, cia peb muab cov kev sib tw ua tiav ntawm Mining thiab nrhiav qhov txawv ntawm Cov Ntaub Ntawv Mining thiab Cov Ntaub Ntawv Extraction. Data Mining yog dab tsi? Cov ntaub ntawv mining, tseem hu ua […]

HDD magnetic recording technologies: yooj yim txog qhov complex

Luam tawm rau

Lub ntiaj teb thawj lub zog tsav, IBM RAMAC 305, tso tawm xyoo 1956, tuav tsuas yog 5 MB ntawm cov ntaub ntawv, hnyav 970 kg thiab tau muab piv rau qhov loj me rau lub tub yees. Cov tuam txhab lag luam niaj hnub no tuaj yeem khav tau lub peev xwm ntawm 20 TB. Cia li xav txog: 64 xyoo dhau los, txhawm rau sau cov ntaub ntawv ntau, […]

Cov txheej txheem thiab cov piv txwv ntawm kev siv Docker kev ruaj ntseg xyuas cov khoom siv

Luam tawm rau

Nyob zoo, Habr! Hauv kev muaj tiag niaj hnub no, vim yog lub luag haujlwm loj ntawm ntim ntim hauv cov txheej txheem kev txhim kho, qhov teeb meem ntawm kev ua kom muaj kev ruaj ntseg ntawm ntau theem thiab cov koom haum cuam tshuam nrog cov ntim khoom tsis yog qhov tseem ceeb tshaj plaws. Ua raws li kev txheeb xyuas phau ntawv yog siv sijhawm, yog li nws yuav yog ib lub tswv yim zoo los ua yam tsawg kawg yog thawj kauj ruam ntawm kev ua haujlwm ntawm cov txheej txheem no. Hauv tsab xov xwm no kuv yuav qhia cov ntawv npaj ua tiav […]

NetSarang xShell yog tus neeg siv khoom muaj zog SSH

Luam tawm rau

Puas tseem siv Putty + WinSCP / FileZilla? Tom qab ntawd peb pom zoo kom them nyiaj rau software xws li xShell. Nws txhawb tsis tsuas yog SSH raws tu qauv, tab sis kuj rau lwm tus. Piv txwv li, telnet lossis rlogin. Koj tuaj yeem txuas rau ntau lub servers tib lub sijhawm (tab mechanism). Tsis tas yuav sau cov ntaub ntawv txhua lub sijhawm, koj tuaj yeem nco qab nws. Pib los ntawm version 6, Lavxias teb sab interface tau tshwm sim uas nkag siab tag nrho Lavxias […]

Lub koom haum ntawm kev ua haujlwm hauv ib pab pawg ntawm IT project

Luam tawm rau

Nyob zoo phooj ywg. Heev feem ntau, tshwj xeeb tshaj yog nyob rau hauv outsourcing, kuv pom tib daim duab. Tsis muaj kev paub meej txog kev ua haujlwm hauv pab pawg ntawm ntau yam haujlwm. Qhov tseem ceeb tshaj plaws yog tias cov programmer tsis nkag siab txog kev sib txuas lus nrog cov neeg siv khoom thiab ib leeg. Yuav ua li cas los tsim cov txheej txheem txuas ntxiv ntawm kev tsim cov khoom zoo. Yuav ua li cas npaj koj hnub ua haujlwm thiab [...]

Huawei OceanStor Dorado 18000 V6: Dab tsi yog nws qhov siab kawg

Luam tawm rau

Peb tau sib cav hais tias OceanStor Dorado 18000 V6 ua rau cov ntaub ntawv khaws cia siab tiag tiag nrog rau qhov tsim nyog rau xyoo tom ntej. Nyob rau tib lub sijhawm, peb tshem tawm kev txhawj xeeb ntau txog All-Flash cia thiab qhia tias Huawei tau txais txiaj ntsig zoo tshaj plaws ntawm lawv li cas: kawg-rau-kawg NVMe, ntxiv caching ntawm SCM thiab tag nrho pawg ntawm lwm cov kev daws teeb meem. Cov ntaub ntawv tshiab toj roob hauv pes - cov ntaub ntawv tshiab khaws cia Ua haujlwm siv […]

Mini ITX Cluster Turing Pi 2 nrog 32 GB RAM

Luam tawm rau

Ua tsaug rau lub zej zog Habr! Kuv nyuam qhuav sau txog peb thawj version [V1] pawg thawj coj saib. Thiab hnub no kuv xav qhia koj seb peb ua haujlwm li cas ntawm Turing V2 version nrog 32 GB ntawm RAM. Peb mob siab rau cov mini servers uas tuaj yeem siv rau kev txhim kho hauv zos thiab hauv zos hosting. Tsis zoo li desktop computers lossis laptops, peb cov servers yog […]

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