系统初始化的一些内容

yum install bash-completion lrzsz unzip wget vim* -y
systemctl disable firewalld
systemctl stop firewald
sed -i 's/^#DNS yes/UseDNS no/g' /etc/ssh/sshd_config
sed -i 's/^GSSAPIAuthentication yes/GSSAPIAuthentication no/g' /etc/ssh/sshd_config
systemctl restart sshd.service