我按照各种脚本设置了 2 台 linode 机器。两台机器都有一个外部 IP 和本地 IP。在其中一台机器上我安装了 redis,我想通过本地 IP 连接到这台机器。
我应该特别添加哪些规则来允许从我的其他 linode 访问端口 6379(redis),但不允许从互联网的其余部分访问?
到目前为止我的 /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
# 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
# Drop all other inbound - default deny unless explicitly allowed policy
-A INPUT -j DROP
-A FORWARD -j DROP
答案1
在规则之前的某处包含此规则-A INPUT -j DROP
:
-A INPUT -s 123.45.67.8 -p tcp -m state --state NEW --dport 6379 -j ACCEPT
更改123.45.67.8
为您希望允许访问的服务器的 IP 地址。