当服务器未安装 netstat 工具时，查看端口监听状态会提示如下报错 “command not found”。
1 2 | [root@VM_0_15_linux ~]# netstat -an|grep 9200-bash: netstat: command not found |
如果要使用 netstat 命令，需要先安装工具，安装步骤如下所示。
一、首先配置好本机的 yum 源
1 2 3 4 5 6 7 8 9 | [root@VM_0_15_linux ~]# yum repolist allLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfilerepo id repo name statusbase/1.1/x86_64 UPEL-1.1 - Base enabled: 7,695!extras/1.1/x86_64 UPEL-1.1 - Extras disabledupdates/1.1/x86_64 UPEL-1.1 - Updates enabled: 208upel-media UPEL-1.1 - Media disabledrepolist: 7,903 |
二、查看提供命令的工具包
执行如下命令 yum provides */netstat 可以看到提供命令的工具包：
net-tools-2.0-0.22.20131004git.el7.x86_64。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | [root@VM_0_15_linux ~]# yum provides */netstatLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileupdates/1.1/x86_64/filelists_db | 1.1 MB 00:00:00 ctdb-tests-4.7.1-9.el7_5.x86_64 : CTDB clustered database test suiteRepo : baseMatched from:Filename : /usr/share/ctdb/tests/eventscripts/stubs/netstatnet-tools-2.0-0.22.20131004git.el7.x86_64 : Basic networking toolsRepo : baseMatched from:Filename : /bin/netstat |
三、安装工具包
执行 yum install net-tools 安装命令。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | [root@VM_0_15_linux ~]# yum install net-toolsLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfileResolving Dependencies--> Running transaction check---> Package net-tools.x86_64 0:2.0-0.22.20131004git.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved======================================================================================================================================================================= Package Arch Version Repository Size=======================================================================================================================================================================Installing: net-tools x86_64 2.0-0.22.20131004git.el7 base 305 kTransaction Summary=======================================================================================================================================================================Install 1 PackageTotal download size: 305 kInstalled size: 917 kIs this ok [y/d/N]: yDownloading packages:net-tools-2.0-0.22.20131004git.el7.x86_64.rpm | 305 kB 00:00:00 Running transaction checkRunning transaction testTransaction test succeededRunning transaction Installing : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1[upel]: net-tools signature check ok.[upel]: net-tools signature check ok.[upel]: net-tools signature check ok. Verifying : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1Installed: net-tools.x86_64 0:2.0-0.22.20131004git.el7 Complete! |
四、验证测试
利用本地监听的端口 9200 验证工具安装是否正常。
可以正常使用命令，说明安装正常。
1 2 | [root@VM_0_15_linux ~]# netstat -an|grep 9200tcp6 0 0 :::9200 :::* LISTEN |
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持IT俱乐部。
