Jan 1, 0001
CentOS 7 安装与初始化 更换源 参考:http://mirrors.163.com/.help/centos.html
首先备份/etc/yum.repos.d/CentOS-Base.repo
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup 下载对应版本repo文件, 放入/etc/yum.repos.d/(操作前请做好相应备份)
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo mv CentOS7-Base-163.repo /etc/yum.repos.d/ 运行以下命令生成缓存
yum clean all yum makecache 安装sshd 安装
yum install openssh-server 启动
systemctl start sshd 设置开机启动
systemctl enable sshd 调整iptables 安装iptables
yum install iptables-services 修改配置文件
vi /etc/sysconfig/iptables 添加想开放的端口(如80)
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT 重启防火墙使配置文件生效