バージョン確認 # cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) IP系コマンド net-tools iproute2 ifconfig ip a(addr), ip l(link) route ip r(route) netstat ss netstat -i ip -s l(link) arp ip n(neighbor) # ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536</loopback,up,lower_up>…