图1-3安装SSHupdate-siternatiVES:便用/usr/btn/vi.m.basic来在自动按式中提供/卸载o亍软件包'有e乎软件包耒被升级1、创建hadoop用户。（见图1-1）檜席qc-virtudl-Haichiine:-$sudo*passwdhadoop論入新的UNIX密码:鱼新辅入新的UNIX.®码:passed:已成功里新密码Qcceocc-virtudl-Rachinesudo*addiuserhadaapsudo正在淅加用户"hadoop11到'它词十组■■.正9将用Puhad呵T加入SIJra5ud0唯中完成。坤£匸@耳££・¥1『tual-Rachine;-^|图1-1创建hadoop2、用hadoop用户登录后，我们先更新一下apt,后续我们使用apt安装软件，如果没更新可能有一些软件安装不了。（见图1-2）图1-2更新apt3、集群、单节点模式都需要用到SSH登陆（类似于远程登陆，你可以登录某台Linux主机，并且在上面运行命令），Ubuntu默认已安装了SSHclient,此外还需要安装SSHserver。见图1-3）qcc-virtueL-machiric;-ncurses-ternopenssh-iftp-serverssh-tnpc?「t-Id建谊宾装：ssh-a±kpa5srsshnelly-guardmankEysphere下列【新】软件包将被安巔：ncurses-termopEnssh-serveropenssh-sftp-serverssh-import-idfi^tT0亍软杵包，新宾装了4术软件包，專-一亠――-禅荽下毎&13ke的归档a龍压箱后会消耗5,136kB的额外空问0您希组竝续执行吗？[呻町y获取：1http://tn.archive^ubunttj.COR/ubuntuxenlal/natnamd&4ncursts-termall6.&42&16&215-iubuntul[249kB]获取：2http://ci.irclvlva.ubuntu.coR^ubuirbuxenLal-updates/natnamd64opanssh'Sft^serveramdM1:7.2p2-4«Jbuntu2.[36.7kB]狂取：耳http:ffen-archive,ubuntu"COE/ubuntuXEnlBl-upd日$円^弓4n[>en£$h-w£「费严hadqcc«virtueUma-ChTnc:*had□□pgiqcc:-virtuaL-nachine:sshlocalhastTheauthehttcttyofhost*localhost(127.0.0.1)*can8tbeestablished・ECDSAkeyfingerprintisSHA256:5AJyjjrbOJByFyV3b2ETvVMhmJsRAKkmjjiISMNI2cXnxQuAreyousureyouwamttocontiinueconnecting(yes/no)?yesVarning:Permanentlyadded'localhost'(ECDSA)tothelistafknownhests-hsadoopgllocallhast'spiassword:welcometoUbuntu1&.B4..4LTS[GNU/Ltniux4.13.0-45-genericxec_64)*Docunefttatlcn；https://help.ubuntu™com血Wanagenent;https;//landscape.cdnonicdl^con*Support:https://ubuntu・c&n/advantagemetadatawasignoredduetoerrors・installVILRxenialinReleasexenial-updates.inRelease[199kB]xenial-backportsInRelease[167kB]TDrunacarnmsndasadministratar(user"『oatr,)ruse"sudo°・Seesudoroot*ford]etatl!&BhodlQOp®L-maChinc;hadoop的巒码:http://secu『Ity*ubuntu「£即bKfociiptqcc-vl『t«al^achlnie:*$sudo^pt-getupdate[sudo]WcK：l命中;2获St；3我肌；4已下载Ap&Streantacheu&ddte亡GMpLeted?butsone芷在读取软件包列裁…完咸hadoopeqcc-vtrtual-Nachlne:-$sudompt-get正在義取软件包列舌…完咸正在分折软件辺的依赖关乘樹正0个可升级软件包。白G安全更新。Theprogramsincludedwtththeubuntusystemerefreesoftware;theexactdtstrlb-uttoriternsforeachprogramaredescribedtntheindividualfilesin/JS.r/share/doc/*/copyrights□buntucomeswithABSOLUTELYNOWARRANTY,totheExtentpermittedbyapplicablelaw・heopd站ex■rtunauhlne:■图1-4ssh登陆成功4、为了方便后续操作，我们需要配置成SSH无密码登陆比较方便，首先退出刚才的ssh，就回到了我们原先的终端窗口，然后利用ssh-keygen生成密钥，并将密钥加入到授权中。（见图1-5）费Thadgg*p(^qcc-vlrtuQUmachrnc;-/.sshCDnn&ctiontciLcic:alhostcloseduhadwpSqcc-virtual-nachine:"$cd-/.ssh/had□□pgjqcc-virtuaL-nachine:-/tsslh$ssh-IkeygEn-1rsaGeneirattogpubltc/prlLvatersakeypalLir*Enterfileinwlhiuhtosavetlhekey(/home/hadaap/assh/id_rsa):Enterpassphrase(emptyforngpassphrase);Entt『somepassphrdse-dgdin:v&uridentificati&nhasbeensavedin/hc?me/lhadQQp/H5sh/idl_r5aP¥&u『pub...
