Linux yog cov txheej txheem ua haujlwm tshiab niaj hnub no. Nws yog qhov ruaj khov thiab muaj kev nyab xeeb. Linux tau hloov kho cov neeg siv cov chaw thiab lub peev xwm tswj tau dav.
Nws yog qhov tsim nyog
Lub khoos phis tawm nrog lub linux operating system
Cov Lus Qhia
Kauj ruam 1
Txhua tus neeg siv nyiaj ntawm cov linux tau muab cia rau hauv cov ntawv sau / lwm yam / passwd. Txhua kab ntawm cov ntaub ntawv muaj cov ntaub ntawv hais txog ib qho ntawm cov as khauj. Nws muaj 7 daim teb, sib cais los ntawm colons: 1. Nkag mus2. Lub teb tsis siv nyob qhov twg lo lus zais hash tau khaws cia rau hauv cov laus dua. Tus neeg siv lub cim (uid) 4. Thawj pab pawg id rau tus lej (gid) 5. Cov ntaub ntawv ntawm tus kheej txog tus neeg siv, piv txwv li lub npe tiag thiab naj npawb xov tooj. 6. Cov ntawv qhia chaw nyob 7. Plhaub plhaub.
Kauj ruam 2
Los ntawm lub neej ntawd, / / lwm yam / passwd ntawv yog nyeem tau los ntawm ib tus neeg siv. Koj tuaj yeem saib cov khoom nkag hauv nws los ntawm kab lus sau ntawv, siv cov kev siv hauv console, lossis lub graphical interface.
Kauj ruam 3
Txhawm rau saib cov neeg siv linux ncaj qha los ntawm cov ntaub ntawv no, cia li luam nws cov ncauj lus rau lub console nrog cov lus txib: miv / thiab lwm yam / passwd Koj yuav pom cov npe ntawm txhua tus neeg siv tso npe hauv lub system.
Kauj ruam 4
Tus account siv sib txawv hauv hom: 1. Tus neeg siv hauv paus, uid = 0.2. Cov as qhauj system. 3, Cov neeg siv khoom ib txwm muaj. Rau Red Hat based systems, lawv muaj uid 500 lossis ntau dua, thiab rau Debian based systems, 1000.
Kauj ruam 5
Hauv cov / etc / passwd file, accounts tsis tau txheeb raws li hom, yog li yog tias koj xav sau tsuas yog cov neeg siv linux tsis tu ncua, siv cov ntxaij lim dej. Piv txwv, qhov hais kom ua grep no tsuas sau cov neeg siv tsis tu ncua rau debian systems los ntawm lim lawv ntawm uid: miv / thiab lwm yam / passwd | grep -e "^ [^:] *: [^:] *: [0-9] {4,}" Los yog, ntxiv cov ntawv txiav rau tus kav raj xa dej, tau txais tsuas yog lawv cov logins thiab cov chaw nyob hauv tsev: cat / etc / passwd | grep -e "^ [^:] *: [^:] *: [0-9] {4,}" | txiav -d: -f1, 6
Kauj Ruam 6
Dhau li ntawm cov ntawv nws tus kheej thiab cov chaw siv hluav taws xob, koj tuaj yeem tau txais cov npe ntawm cov neeg siv uas siv cov phiaj xwm graphical. Piv txwv li, lub plhaub kauv ntawm KDE muaj ib tus neeg siv thiab pawg kev tswj hwm kev hloov kho raws.
Kauj Ruam 7
Lub qhov rai sab saum toj ntawm tus qauv qhia cov npe ntawm cov nyiaj. Los ntawm txhaj rau ib qho ntawm lawv, koj yuav tau txais kev piav qhia ntawm nws rau hauv qab ntawm lub qhov rais. Tus qauv qhia tsuas yog cov neeg siv li niaj zaus thiab lub hauv paus los ntawm lub neej ntawd, tab sis los ntawm kev khij lub npov raug rau hauv qab no, koj yuav pom cov neeg siv kev ua haujlwm ib yam nkaus.
