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  • linode 防火墙设置

    --linode 防火墙设置
    vi /etc/iptables.firewall.rules
    *filter

    # Allow all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0
    -A INPUT -i lo -j ACCEPT
    -A INPUT -d 127.0.0.0/8 -j REJECT

    # Accept all established inbound connections
    -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

    # Allow all outbound traffic - you can modify this to only allow certain traffic
    -A OUTPUT -j ACCEPT

    # Allow HTTP and HTTPS connections from anywhere (the normal ports for websites and SSL).
    -A INPUT -p tcp --dport 80 -j ACCEPT
    -A INPUT -p tcp --dport 443 -j ACCEPT
    -A INPUT -p tcp --dport 3306 -j ACCEPT

    # Shadowsock
    #-A INPUT -p tcp --dport 68177 -j ACCEPT
    #-A INPUT -p udp --dport 69233 -j ACCEPT

    # Allow SSH connections
    #
    # The -dport number should be the same port number you set in sshd_config
    #
    -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT

    # Allow ping
    -A INPUT -p icmp --icmp-type echo-request -j ACCEPT

    # Log iptables denied calls
    -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7

    COMMIT

    #生效'
    iptables-restore < /etc/iptables.firewall.rules


    #保存防火墙规则
    service iptables save

    #重起生效
    service iptables restart

    查看iptables规则及编号
    iptables -L -n --line-number


    #删除规则
    iptables -D INPUT 2

    iptables -D OUTPUT 2

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  • 原文地址:https://www.cnblogs.com/justdba/p/7231928.html
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