YUM

network

/etc/sysconfig/network-scripts/ifcfg-ens192
/etc/sysconfig/network-scripts/route-ens192

DNS

/etc/resolv.conf

nameserver 8.8.8.8

yum install -y epel-release
yum install -y dstat telnet git rpmdevtools gcc jq java-1.8.0-openjdk-devel bind-utils net-tools wget tcpdump vim traceroute tmux
yum update

hostname

/etc/hostname

hostname <<name.domain>>

hosts

/etc/hosts

NOPASSWDのuser

useradd genuser
usermod -aG wheel genuser

visudoでwheelユーザのNOPASSWD設定を施す

ssh

ssh-keygen -t rsa -b 2048
cat .ssh/id_rsa.pub > .ssh/authorized_keys
chmod 600 .ssh/*
chmod 700 .ssh