Linux配置

网络配置

vim /etc/sysconfig/network-scripts/ifcfg-ens33

修改后

servive network restart

修改主机名称

vim /etc/hostname

修改 hosts 映射

vim /etc/hosts

服务配置

查看服务

cd /etc/init.d
ls -al

防火墙

#查看防火墙状态

systemctl status firewalld

# 关闭防火墙

systemctl stop firewalld 

# 开启防火墙

systemctl start firewalld 

# 开机自启动防火墙

systemctl enable firewalld.service  

# 开机不自启动防火墙

systemctl disable firewalld.service 

#查询所有开放的端口

firewall-cmd --list-ports     

#查询端口是否开放

firewall-cmd --query-port=8080/tcp    

#永久添加8080端口

firewall-cmd --add-port=8080/tcp --permanent       

#永久增加65001-65010端口

firewall-cmd --add-port=65001-65010/tcp --permanent   

#永久删除8080端口

firewall-cmd --remove-port=8800/tcp --permanent       

# 对某个ip开放某个端口

firewall-cmd --permanent --add-rich-rule=“rule family=“ipv4” source address=“192.168.142.166” port port=“5432” protocol=“tcp” accept”

# 删除对某个ip开放某个端口

firewall-cmd --permanent --remove-rich-rule=“rule family=“ipv4” source address=“192.168.142.166” port port=“5432” protocol=“tcp” accept”

更新防火墙规则，更改配置后要执行重载配置

firewall-cmd --reload