1，反查询命令在什么包中
yum provides nc
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
2:nmap-ncat-6.40-19.el7.x86_64 : Nmap's Netcat replacement
Repo : @base
Matched from:
Provides : nc
netcat-1.218-2.el7.x86_64 : OpenBSD netcat to read and write data across connections using TCP or UDP
Repo : @epel
Matched from:
Provides : nc = 1.218-2.el7
因篇幅问题不能全部显示，请点此查看更多更全内容