#刚开始直接root用户登录,在etc目录,切换到oracle,输入lsnrctlstart启动oracle时提示"lsnrctl:commandnotfound" [root@loveyao_testetc]#suoracle [oracle@loveyao_testetc]$lsnrctlstart bash:lsnrctl:commandnotfound
#切换回root用户,cd/根目录,再次su-oracle,输入lsnrctlstart启动oracle,这次正常啦. [oracle@loveyao_test~]$cd/ [oracle@loveyao_test/]$su-root su:invalidoption--'r' Try`su--help'formoreinformation. [oracle@loveyao_test/]$su-root Password: [root@loveyao_test~]#su-oracle [oracle@loveyao_test~]$ [oracle@loveyao_test~]$lsnrctlstart LSNRCTLforLinux:Version11.2.0.3.0-Productionon04-JUL-201622:06:57 copyright(c)1991,2011,Oracle.Allrightsreserved. Starting/u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr:pleasewait... TNSLSNRforLinux:Version11.2.0.3.0-Production Logmessageswrittento/u01/app/oracle/diag/tnslsnr/loveyao_test/listener/alert/log.xml Errorlisteningon:(ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) TNS-12545:ConnectFailedbecausetargethostorobjectdoesnotexist TNS-12560:TNS:protocoladaptererror TNS-00515:ConnectFailedbecausetargethostorobjectdoesnotexist LinuxError:25:Inappropriateioctlfordevice ListenerFailedtostart.Seetheerrormessage(s)above... [oracle@loveyao_test~]$ #如上所示:oracle启动失败,提示"Errorlisteningon:(ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) TNS-12545:ConnectFailedbecausetargethostorobjectdoesnotexist" #hosts文件导致,切换root修改hosts文件,重新启动oracle可以正常启动.具体操作如下: [oracle@loveyao_testalert]$su-root Password: [root@loveyao_test~]# [root@loveyao_test~]# [root@loveyao_test~]#vi/etc/hosts 127.0.0.1localhostlocalhost.localdomainlocalhost4localhost4.localdomain4 ::1localhostlocalhost.localdomainlocalhost6localhost6.localdomain6 ~ #将hosts文件localhost修改成主机名hostname的名字,注意:vi/etc/sysconfig/network文件可以修改hostname的名字(这里修改后需要重启系统). [root@loveyao_test~]#vi/etc/hosts 127.0.0.1loveyao_testlocalhost.localdomainlocalhost4localhost4.localdomain4 ::1localhostlocalhost.localdomainlocalhost6localhost6.localdomain6 ~ [root@loveyao_test~]#su-oracle [oracle@loveyao_test~]$lsnrctlstart LSNRCTLforLinux:Version11.2.0.3.0-Productionon04-JUL-201622:23:22 copyright(c)1991,Oracle.Allrightsreserved. Starting/u01/app/oracle/product/11.2.0/db_1/bin/tnslsnr:pleasewait... TNSLSNRforLinux:Version11.2.0.3.0-Production Logmessageswrittento/u01/app/oracle/diag/tnslsnr/loveyao_test/listener/alert/log.xml Listeningon:(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=loveyao_test)(PORT=1521))) Connectingto(ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) STATUSoftheLISTENER ------------------------ AliasLISTENER VersionTNSLSNRforLinux:Version11.2.0.3.0-Production StartDate04-JUL-201622:23:22 Uptime0days0hr.0min.0sec TraceLeveloff SecurityON:LocalOSAuthentication SNMPOFF ListenerLogFile/u01/app/oracle/diag/tnslsnr/loveyao_test/listener/alert/log.xml ListeningEndpointsSummary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=loveyao_test)(PORT=1521))) Thelistenersupportsnoservices Thecommandcompletedsuccessfully [oracle@loveyao_test~]$ #查看oracle监听端口1521 [oracle@loveyao_test~]$ss-tanl Recv-QSend-QLocalAddress:PortPeerAddress:Port 0128:::111:::* 0128*:111*:* 0128:::1521:::* 0128:::25493:::* 0128:::22:::* 0128*:22*:* 0128127.0.0.1:631*:* 0128::1:631:::* 0100::1:25:::* 0100127.0.0.1:25*:* 0128*:39108*:* [oracle@loveyao_test~]$
