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                1.配置ssh免秘鑰登錄 ssh 無密碼登錄要使用公鑰與私鑰。linux下可以用用ssh-keygen生成公鑰/私鑰對,下面我以CentOS為例。 有機器A(130.75.3.72),B(130.75.3.171)。現想A通過ssh免密碼登錄到B。 1.在A機下生成公鑰/私鑰對。 [chenlb@A~]$ssh-keygen -t rsa -P表示密碼,-P '' 就表示空密碼,也可以不用-P參數,這樣就要三車回車,用-P就一次回車。 它在/home/chenlb下生成.ssh目錄,.ssh下有id_rsa和id_rsa.pub。 2.把A機下的id_rsa.pub復制到B機下,在B機的.ssh/authorized_keys文件里, 從A機復制的id_rsa.pub添加到.ssh/authorzied_keys文件里。 A機器 mv id_rsa.pub authorized_keys ftp authorized_keys上傳到B機器 由于還沒有免密碼登錄的,所以要輸入密碼。 [chenlb@B~]$catid_rsa.pub>>.ssh/authorized_keys [chenlb@B~]$chmod 600 .ssh/authorized_keys **authorized_keys的權限要是600**。 4.A機登錄B機。 ssh -p 22130.75.3.171 Theauthenticityofhost'130.75.3.171(130.75.3.171)'can'tbeestablished. RSAkeyfingerprintisab:35:91:08:b7:48:52:35:aa:d2:53:f9:51:fe:c2:55. Areyousureyouwanttocontinueconnecting(yes/no)yes Warning:Permanentlyadded'130.75.3.171'(RSA)tothelistofknownhosts. 第一次登錄是時要你輸入yes。 現在A機可以無密碼登錄B機了。 小結:登錄的機子可有私鑰,被登錄的機子要有登錄機子的公鑰。這個公鑰/私鑰對一般在私鑰宿主機產生。上面是用rsa算法的公鑰/私鑰對,當然也可以用dsa(對應的文件是id_dsa,id_dsa.pub) 想讓A,B機無密碼互登錄,那B機以上面同樣的方式配置即可。 參考:SSH-KeyGen 的用法[http://blog.163.com/chen98_2006@126/blog/static/158584272007101862513886/](http://blog.163.com/chen98_2006@126/blog/static/158584272007101862513886/) 2.安裝rsync文件同步 借助ssh通道從本地推送文件到遠端(前提需要配置ssh免秘鑰) 方式1 Last?login:?Mon?Jul?11?16:06:20?2016?from?130.75.3.41 [[oracle@JX-BSS-APP](mailto:oracle@JX-BSS-APP)?~\$?rsync?-vzrtopg?--progress?-e?'ssh?-p?22'?/home/oracle/rsync/?[oracle@130.75.3.171](mailto:oracle@130.75.3.171):/home/oracle building?file?list?...? rsync:?link\_stat?"/home/oracle/rsync/."?failed:?No?such?file?or?directory?(2) 0?files?to?consider sent25bytesreceived20bytes90.00bytes/sec totalsizeis0speedupis0.00 rsyncerror:somefilescouldnotbetransferred(code23)atmain.c(702) [[oracle@JX-BSS-APP](mailto:oracle@JX-BSS-APP)~]$ 方式2 [[oracle@JX-BSS-APP](mailto:oracle@JX-BSS-APP)?~]$?rsync?-avze?ssh?--delete?/home/oracle/fck/?130.75.3.171:/home/oracle/fck/ buildingfilelist...done createddirectory/home/oracle/fck ./ 1.txt sent186bytesreceived40bytes452.00bytes/sec totalsizeis13024speedupis57.63 rsync-avzessh--delete /opt/webapps/IBM/WebSphere/AppServer/profiles/AppSrv01/installedApps/JX-BSS-APPNode01Cell/crm1_war.ear/crm1.war/custcontact/woyf/employ/130.75.3.28:/opt/webapps/IBM/WebSphere/AppServer/profiles/AppSrv01/installedApps/JX-BSS-APPNode01Cell/crm1_war.ear/crm1.war/custcontact/woyf/employ/
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