Cov txheej txheem:
Video: Hom ntaub ntawv twg yog qhov tsim nyog tshaj plaws los txheeb xyuas tus password?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txoj hlua hom ntaub ntawv yog qhov tsim nyog tshaj plaws los txheeb xyuas tus password.
Xav txog qhov no, hom ntaub ntawv twg yog tus password?
Raws li qhov ntev ntev txoj hlua ( VARCHAR (n) lossis MySQL hu nws). Lub hash yeej ib txwm muaj qhov ntev ntawm qhov piv txwv 12 cim (nyob ntawm qhov hash algorithm koj siv). So ib 20 char password yuav raug txo mus rau 12 char xas,a 4 char tus password kuj tseem yuav ua rau 12 char hash.
Tom qab, lo lus nug yog, lo lus zais yog hom ntaub ntawv hauv SQL? Tsis muaj password datatype hauv ob qho khoom. Muaj ib daim npog qhov ncauj tawm hauv Access rau passwords, tab sis nws tsis yog hom ntaub ntawv . ok, Kuv yuav teeb tsa lub npog qhov ncauj rau nvarchar, varchar lossis ntext, teb rau hauv SQL ntawv Server?
Ib yam li ntawd, hom ntaub ntawv twg yog tus neeg siv lub npe?
Yog, koj tuaj yeem siv varchar (15) cov ntaub ntawv khaws cia tus neeg siv lub npe. Varchar khw muag khoom sib txawv-ntev kab cim . nws tuaj yeem xav tau kev khaws cia tsawg dua li qhov ntev-ntev hom vim nws tsuas yog siv ntau qhov chaw raws li nws xav tau.
Yuav ua li cas kuv tus password encrypt ib database?
Encrypt lub database los ntawm kev siv tus password
- Qhib lub database hauv Exclusive mode. Kuv yuav qhib lub database hauv Exclusive mode li cas?
- Ntawm Cov Ntaub Ntawv tab, nyem Cov Ntaub Ntawv, thiab tom qab ntawd nyem Encrypt nrog Password.
- Ntaus koj tus password rau hauv lub thawv Password, ntaus nws dua hauv lub thawv Tshawb Fawb, thiab tom qab ntawd nyem OK.
Pom zoo:
Dab tsi yog qhov tsim nyog qib siab tshaj plaws ntawm Cisco IOS ntaus ntawv?
'Txoj cai tswjfwm cia koj txhais cov lus txib uas cov neeg siv tuaj yeem tawm tom qab lawv tau nkag mus rau hauv lub network ntaus ntawv.' Thaum peb ntaus 'enable', peb raug muab rau qib siab dua. (Los ntawm lub neej ntawd, qib no yog 15; peb kuj tuaj yeem siv cov lus txib 'pab 15' txhawm rau txhim kho peb cov cai rau qib 15.)
Tus khub twg yog qhov kev xaiv zoo tshaj plaws los hais txog cov ntawv nrog italic font ntawm nplooj ntawv Web?
Cov khub tag qhia rau browsers tias cov ntawv uas nyob ib puag ncig yuav tsum tau hais txog qee txoj hauv kev. Raws li kuv paub, txhua tus browsers tso cov ntawv zoo li no hauv cov ntawv qaij
Microsoft Excel yuav pab tau tus neeg li cas los txheeb xyuas cov ntaub ntawv txheeb cais?
Excel muaj ntau yam kev txheeb cais uas koj tuaj yeem siv los suav ib tus nqi lossis ib qho ntawm cov txiaj ntsig hauv koj daim ntawv ua haujlwm Excel. Excel Analysis Toolpak yog ib qho ntxiv-hauv uas muab cov cuab yeej txheeb xyuas ntau dua. Tshawb xyuas cov cuab yeej siv tau zoo no los ua kom zoo tshaj plaws ntawm koj qhov kev txheeb xyuas kev txheeb xyuas
Hom ntaub ntawv twg yog qhov zoo tshaj plaws rau sab nraud hard drive?
Cov Hom Ntawv Zoo Tshaj Plaws rau Sab Nraud HardDrives Yog tias koj xav format koj lub harddrive sab nraud los ua haujlwm nrog Mac thiab Windows khoos phis tawj, koj yuav tsum sivexFAT. Nrog exFAT, koj tuaj yeem khaws cov ntaub ntawv ntawm txhua qhov loj me, thiab siv nrog txhua lub computer ua hauv 20 xyoo dhau los
Qhov kev pabcuam AWS qhov twg yog qhov zoo tshaj plaws rau cov ntaub ntawv thaub qab rau lub sijhawm ntev?
Amazon S3 Glacier yog qhov ruaj ntseg, ruaj khov, thiab tsis tshua muaj nqi huab cia kev pabcuam rau kev khaws cov ntaub ntawv thiab thaub qab mus ntev. Cov neeg siv khoom tuaj yeem ntseeg tau khaws cov ntaub ntawv loj lossis me me rau tsawg li $ 0.004 ib gigabyte ib hlis, ib qho kev txuag tseem ceeb piv rau cov kev daws teeb meem hauv tsev