Startup_Centos7

echo 'proxy=http://10.77.128.254:3128/' >> /etc/yum.conf

yum update

yum install -y mc nano vim wget open-ssh openssh-clients man bind-utils bzip2 unzip zip ntp sysstat bash-completion vnstat net-tools lsof tcpdump screen tmux

yum install -y epel-release

yum update

/etc/selinux/config => SELINUX=disabled

systemctl disable firewalld

systemctl stop firewalld

yum remove firewalld

yum install iptables-services

touch /etc/sysconfig/iptables

touch /etc/sysconfig/ip6tables

systemctl start iptables

systemctl start ip6tables

systemctl enable iptables

systemctl enable ip6tables

далее ntp vim /etc/ntp.conf server 10.77.128.202

cat /etc/chrony.conf

#These servers were defined in the installation:

server 10.77.128.202 iburst

chronyc sources