kafka是在腾讯云服务器上安装的，我配置完之后，通过外网ip可以ping通，但是用程序连接，报这个警告：
Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be
available.
kafka配置
# broker的编号，如果集群中有多个broker，则每个broker的编号需要不同
broker.id=0
# 对外提供的服务入口地址
listeners=PLAINTEXT://:9092
advertised.listeners=PLAINTEXT://10.0.24.17:9092
# 存放消息日志文件的地址 记得创建日志文件夹
log.dirs=/data/kafka/log
# zookeeper配置，如果是集群的话，用“，”隔开 127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002
zookeeper.connect=localhost:2181
地址
- 内网ip：10.0.24.17
- 外网ip：82.157.172.60
客户端错误
客户端springboot连接的是kafka的外网地址：82.157.172.60:9092
运行连接时报错，如下：
[Producer clientId=producer-1] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
[Consumer clientId=consumer-zhTestGroup-1, groupId=zhTestGroup] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
[Producer clientId=producer-1] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
[Consumer clientId=consumer-zhTestGroup-1, groupId=zhTestGroup] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
[Producer clientId=producer-1] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
[Consumer clientId=consumer-zhTestGroup-1, groupId=zhTestGroup] Connection to node 0 (/10.0.24.17:9092) could not be established. Broker may not be available.
将配置改为：
# 监听列表，用于kafka对内和对外 listeners=PLAINTEXT://10.0.24.17:9092 # 供客户端使用的监听地址，所以配置外网端口（对外） advertised.listeners=PLAINTEXT://82.157.172.60:9092参考来自：Kafka Broker配置
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