[root@node01 yum.repos.d]# yum install -y net-tools Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies --> Running transaction check ---> Package net-tools.x86_64 0:2.0-0.22.20131004git.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================= Package Arch Version Repository Size ======================================================================================================= Installing: net-tools x86_64 2.0-0.22.20131004git.el7 centos7 305 k Transaction Summary ======================================================================================================= Install 1 Package Total download size: 305 k Installed size: 917 k Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1 Verifying : net-tools-2.0-0.22.20131004git.el7.x86_64 1/1 Installed: net-tools.x86_64 0:2.0-0.22.20131004git.el7 Complete! [root@node01 yum.repos.d]# netstat -tulnp | grep 5432 tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 1754/postgres tcp6 0 0 ::1:5432 :::* LISTEN 1754/postgres