Azure Ubuntu VM应用程序只能在端口80上连接
[英]Azure Ubuntu VM application only able to connect on port 80
问题描述
I have an Ubuntu16.04 VM on Azure, and am trying to run a node server on it. 
我在Azure上具有Ubuntu16.04 VM，并尝试在其上运行节点服务器。 When I bind the port to 80, I am able to access it from my browser ( http://abcd:80 ). 将端口绑定到80后，便可以从浏览器（ http：// abcd：80 ）访问它。 However, if I try to instead bind the server to a different port, such as 3300 or 8080, the browser times out when trying to connect to it. 但是，如果我尝试将服务器绑定到其他端口，例如3300或8080，则浏览器尝试连接时会超时。 ( http://abcd:3300 ) （ http：// abcd：3300 ）
I have ensured that: 我确保：
- There exists an inbound security rule for port 3300 in the NSG NSG中存在端口3300的入站安全规则
- The windows firewall of the machine of the browser allows port 3300 (I have even tried temporarily turning it completely off but to no avail) 浏览器计算机的Windows防火墙允许端口3300（我什至尝试暂时将其完全关闭，但无济于事）
- I am not using an azure load balancer 我没有使用天蓝色的负载均衡器
- I am starting node with root privileges 我正在使用root特权启动节点
- Node is bound to (port, "0.0.0.0") 节点绑定到（端口“ 0.0.0.0”）
I am listening on the correct port (I think?)
netstat -ant | grep 3300（我认为），我听的正确端口netstat -ant | grep 3300netstat -ant | grep 3300givesnetstat -ant | grep 3300给tcp6 0 0 :::3300 :::* LISTEN
I have spent a few hours now researching on the internet how to get it to work and tried everything I could find, but to no avail. 我现在花了几个小时在互联网上研究如何使其工作，并尝试了所有我能找到的，但无济于事。 If anyone has any input i'd be happy to try it out. 如果有人有任何意见，我将很乐意尝试。
1 个解决方案
解决方案1
1 已采纳 2017-09-15 14:35:59
Jason was correct, it was a ufw issue. 杰森是正确的，这是一个普遍存在的问题。 If anyone comes across this question in the future, I solved it with the command 如果将来有人遇到这个问题，我可以使用以下命令解决
sudo ufw allow proto tcp from any to any port 3300
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