Sei kuisa 777 Permissions musi Linux?

Uchishandisa maitiro - chikamu chinokosha chero kombiyuta. Munguva ichangopfuura, nepamusika achimhanya mukurumbira chaizvo siyana Linux shanduro kunokwana vakasununguka kuyerera uye nhaka kubva Unix chinobva kuparadzana kodzero kusvika user.

An chinokosha chipi hurongwa mafaira vari. Pashure pezvose, zvose aishandisa ruzivo inochengetwa mavari. Access kodzero mafaira uye folders kutsanangura zvii vanobvumirwa kuita yakananga munhu, nokudaro nokuvumba mukana mumatunhu uye kuona kuchengeteka yose yezvinhu. Kazhinji, kuisa mukana kodzero kuti kubvumidza kana kurambidza achiurayiwa kuverenga uye kunyora.

Users uye Groups

Mumwe mushandisi of uchishandisa hurongwa ibasa rakasiyana identifier. The "Linux" nayo inonzi UID. Uyezve, nokuti kudekara chourongwa vanoshandisa ikashandiswa muzvikwata, izvo anopiwawo akasiyana nemamwe Gidhariti nhamba.

vanozvishandisa All "Linux" rakakamurwa mapoka matatu:

• mushandisi - muridzi faira;
• boka - nhengo chete boka sezvo muridzi;
• vamwe - vose.

Kana faira iri kuvhurwa yacho uchishandisa hurongwa anoona nhengo rokushandisa vari boka. Somuenzaniso, imwe yeGmail.END_STRONG uyo akatuma chikumbiro kuna nzvimbo kuburikidza Browser, ichapiwa mumwe. Kana muridzi nzvimbo kwakabatana Via ftp kuti chiyamuro mukomana aishandisa zita uye pasiwedhi, zvichava kupiwa inodzidzisa boka.

Permissions

Groups vari nomumwe kodzero Dare mukana faira kwacho sezvo kuverenga, kutanga kana kushandura. Nokuti mumwe nomumwe akaita mhando nhatu kuwana:

• kutanga;
• kuverenga;
• nyora kana pepeta.

Numeric zvairatidza kodzero utongi

Kazhinji zvakakwana kuratidza kuchinja kodzero, achimhanya kana kuverenga boka rimwe nerimwe vachishandisa digitaalinen signage. Panyaya iyi, shandisa zvinotevera parameters:

• 4 - kuverenga;
• 2 - Pakunyora;
• 1 - unongotaura.

The pakunzi kuwana kodzero, sezvinoita mutemo, vatatu chete digits. The rokutanga mitemo iyi kunoratidza kuti achiputa muridzi, wechipiri kuti boka, uye wechitatu kuti vose. Kuisa kodzero kuti nerimwe boka kushandisa nyore kuwedzera nhamba. Somuenzaniso, 7 inoratidza mukana vaurayiwe, kunyora uye kuverenga, uye 6 chete kunoita kuti kuchinja uye verenga faira. Saka, 777 Permissions Linux anoona somunhu mutemo, izvo anobvumira kumhanya, verenga uye overwrite chero user.

Permissions

Kushandura Permissions mu "Linux" Asi muridzi kana rokushandisa pamwe mutariri kodzero. Kuchinja kuti chirwere muoti kushandisa chmod murayiro.

It uchibudisa zvokusarudza kushandura mitemo nokushandisa rugwaro (yokufananidzira) kana digitaalinen zviratidzo. Funga kuti yokuisa Permissions 777, vachibvumira kumhanya, kuchinja uye kuverenga faira vose vanoshandisa. In Numeric rudzi, chikwata vachatarira seizvi: chmod 777 faira zita, uye mune hunhu: chmod munhu = rwx filename.

In tsika, kazhinji yamunenge digitaalinen nzira. Handiti, 755 zviri nyore kunyora pane kuisa chaizvo parameters nokuda muridzi, vamwe boka uye.

Recursively changed kodzero

The chmod murayiro inogona kushandiswa nenzira recursive muoti unokubvumira kushandura kodzero dzose mafaira vari Directory uye Sub-subfolders. Nokuti ichi chinangwa chinokosha -R.

Command muenzaniso unoratidza sei kuti vaise 777 Permissions kune mafaira zvose zviri kuitika Directory uye ayo subdirectories:

chmod -R 777 *.

Permissions uye Directories

Kuwedzera mafaira, unogona kuisa Permissions pamusoro Directories. Achiati kushandisa chete parameters (mireza), asi maitiro siyanei. Option kubvumira kuverenga, anobvumira inodzidzisa kuona uone zviri forodha, kuisa kurekodha mureza unokubvumira asike zvinhu zvitsva zviri Directory, uye kuisa kuurayiwa kodzero unokubvumira danda kupinda dhairetori.

Kushandura Permissions kuti Directory zvinoitwa sezvinoitwa nokuti faira achishandisa chmod murayiro.

muenzaniso:

chmod 777 / musha / bvunzo.

Zvinotevera murayiro unoratidza sei kuti vaise 777 Permissions kuti Directory / musha / bvunzo.

Security uye kuwana kodzero

Yeuka kuti kuisa zvisina kufanira kuwana kodzero anogona kukanganisa hurongwa kana munhu kupfuma. Uyezve, kungakonzera zvinetso zvikuru chokuita kuchengeteka. naizvozvo zvakafanira kuongorora uye kudzokorora mapepa. Cherechedzai inofanira kubhadharwa kuti izvi zvisati yokugadza 777 kuwana kodzero, sezvo vanobvumira munhu kusika, kuchinja, uye tongai mafaira ari dhairetori.

kumurwisa zhinji kumedura kupinda Web site uye nezvimwe nomumbure zvinhu rinoshandiswa akangosiyiwa zvawo vanoshandisa avo vakarasika kuruboshwe kurudyi, vachibvumira kukopa nokukuitira chero manyorero kana chikumbiro pamusoro Server.

Advanced Permissions

Pane mamiriro ezvinhu kana uchida kushandisa kunzwisisa zano yekuwaniswa ruzivo. Panyaya iyi, mureza mitemo yacho uchishandisa hurongwa "Linux" zvingasava zvakakwana. Zvino unofanira kuita kushandisa kuwana kuzvidzora mazita (ACL). Shandisa zano iri chete guru chaizvo network ine multi-ichasimudzirwa kuwana mazano. Mune zvimwe zviitiko, mutengo mureza uchishandisa hurongwa mabasa.