linux怎么限定ip

# 允许IP地址192.168.1.100访问SSH服务（端口22）
sudo iptables -A INPUT -p tcp -s 192.168.1.100 --dport 22 -j ACCEPT

# 拒绝其他所有IP地址访问SSH服务
sudo iptables -A INPUT -p tcp --dport 22 -j DROP

sudo iptables-save > /etc/iptables/rules.v4

sudo iptables-restore < /etc/iptables/rules.v4

# 允许IP地址192.168.1.100访问SSH服务
sudo ufw allow from 192.168.1.100 to any port 22

# 拒绝其他所有IP地址访问SSH服务
sudo ufw deny 22/tcp

sudo ufw enable

# 编辑网络接口文件
sudo nano /etc/network/interfaces

# 添加或修改以下内容
auto eth0
iface eth0 inet static
    address 192.168.1.10
    netmask 255.255.255.0
    gateway 192.168.1.1
    # 添加IP过滤规则
    up iptables -A INPUT -s 192.168.1.100 -j ACCEPT
    up iptables -A INPUT -s 0.0.0.0/0 -j DROP

<Directory "/var/www/html">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.100
</Directory>

sudo systemctl restart apache2