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   ͥåȥѥɤꤷʤϤμ
   ԤɬפϤޤ󡣤μ礬ɬפɤ
   ϥƥԤˤǧ

   NIS ǧڤꤷʤ¤ꡢMD5
   ѥɤȥɥѥɤξ򤵤Ƥ
   뤳Ȥ˵ŤǤ礦ξѤ뤳Ȥǥ
   ΰ뤳ȤǤޤ

     * [ɥѥɤѤ]              --
       ѥɤΰ
       뤷ߤΰĤǤ/etc/passwd
       ե˽ޤ줿ѥɤϡ/etc/shadow
       Ȥ¸ޤroot
       桼Υեɤ߼긢¤
       
     * [MD5   ѥɤ͸ˤ]  --  Ū  8
       ʸʲΥѥɤǤϤʤ               256
       ʸޤǤĹѥɤ򥵥ݡȤޤ
     * [NIS   ͸ˤ]   --  Ʊ  NISNetwork
       Information Service
       ɥᥤ˽°ʣΥԥ塼ѥ
       ɤ䥰롼׾ͤ뤷ߤǤʲ  2
       ĤΥץ󤬤ޤ
       :NIS
       ץꤹˤϡԥ塼   NIS
       ͥåȥ³ƤɬפޤNI
       S
       ͥåȥ³Ƥ뤫ɤʾ
       ϥƥԤˤǧ
          + [NIS ɥᥤ] --
            Υץǥԥ塼°ɥ
            ᥤ ʥ롼ס ꤷޤ
          + [NIS ] --
            Υץǥԥ塼ΥФȤ
                    NIS       ФǤ
            ޤΥץꤷƤСLAN
            ˥֥ɥ
            㥹ȥꥯȤäƥۥȥФõ
            ɬפϤޤ
     * [LDAP ͸ˤ] -- LDAP
       ȿǤդξ礹ΤǤ
       ȤСȿΤޤޤʥ桼ꥹȤޤȤ
       ơ1 Ĥ LDAP
       ǥ쥯ȥ礹뤳ȤǤޤLDAP
       ξܺ٤ˤĤƤϡCentOS             Reference
       Guide򻲾ȤƤʲ              3
       ĤΥץ󤬤ޤ
          + [LDAP ] --
            ΥץѤСLDAP
            ץȥѤƤ륵Ф˥
            뤳ȤǤޤ
          + [LDAP Base DN] --
            ΥץѤС̾   (DN)
            ˤäƥ桼򸡺뤳ȤǤ
            ޤ
          + TLS     (Transport     Layer    Security)
            ååפλ --
            ΥץѤȡLDAP
            ǧڤ˰Ź沽줿桼̾ȥѥ
            ɤ LDAP Фޤ
     * [Kerberos     ͸ˤ]     --     Kerberos
       ϥͥåȥǧڥФ󶡤륻
       ƥƥǤKerberos
       ξܺ٤ˤĤƤϡCentOS             Reference
       Guide򻲾ȤƤʲ              3
       ĤΥץ󤬤ޤ
          + [] -- ΥץѤС1
            ޤϾΥ     (KDC)     ¿
            (ޤ¿)
            Υ饤Ȥ鹽     Kerberos
            Ȥäͥåȥ˥뤳Ȥ
            Ǥޤ
          + [KDC] --
            ΥץѤСKerberos
            ΥåȤȯԤ륵        (Ticket
            Granting  Server  ޤ TGS)  KDC (Key
            Distribution Center)
            ˥뤳ȤǤޤ
          + [] --
            ΥץѤСkadmind
            ѤƤ륵Ф˥뤳Ȥ
            Ǥޤ
