[英]express.js server starts on a port that is being used
Have this setup:有这个设置:
8081
. expressjs 服务器从一个节点进程启动,监听端口8081
。http
module. Node.js 客户端尝试使用节点的http
模块从另一个节点进程向它发出请求。Spent a few hours trying to troubleshoot it, then tried to change the port and it worked.花了几个小时尝试对其进行故障排除,然后尝试更改端口并且它起作用了。 Turns out there is another process listening on port 8081:原来有另一个进程在监听 8081 端口:
$ lsof -i tcp:8081
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
EUSAManag 1187 oleksandr.suhak 4u IPv4 0xce3bb9546cff3ab1 0t0 TCP localhost:sunproxyadmin (LISTEN)
(Have no idea what EUSAManag
is) (不知道EUSAManag
是什么)
I guess my question is: how could it be that the express server starts fine without complaining to a "port being used by another process" when the port is clearly in use.我想我的问题是:当端口明显在使用时,快速服务器怎么能正常启动而不会抱怨“另一个进程正在使用的端口”。 And why does it work then when accessing it from the browser, but does not work when making request from js client?为什么从浏览器访问它时它可以工作,但从js客户端发出请求时它却不起作用? Any tips on figuring out what is actually happening here?关于弄清楚这里实际发生了什么的任何提示?
If guess that EUSAManager.exe come from one of software https://iit.com.ua/downloads which is in the business of information security.如果猜测EUSAManager.exe来自信息安全业务中的软件https://iit.com.ua/downloads之一。 Most likely their software interfere too much with you operation system.他们的软件很可能对您的操作系统干扰太多。
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