[root@Cobbler ~]# yum whatprovides host Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * epel: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com epel/x86_64/filelists_db | 9.9 MB 00:00:00 extras/7/x86_64/filelists_db | 486 kB 00:00:00 updates/7/x86_64/filelists_db | 2.1 MB 00:00:00 32:bind-utils-9.9.4-50.el7.x86_64 : Utilities for querying DNS name servers Repo : base Matched from: Filename : /usr/bin/host
32:bind-utils-9.9.4-51.el7.x86_64 : Utilities for querying DNS name servers Repo : updates Matched from: Filename : /usr/bin/host
[root@Cobbler ~]# host www.baidu.com -bash: host: command not found