[英]Accessing tcp port 8080 externally on macos mojave
I am trying to access a listening tcp socket on my macbook from any external client on the same wi-fi lan.我正在尝试从同一 wi-fi lan 上的任何外部客户端访问我的 macbook 上的侦听 tcp 套接字。
This works for specific ports, eg.这适用于特定端口,例如。 8000, but not other ports, eg. 8000,但不是其他端口,例如。 8080, 8081, 8082 8080、8081、8082
How can I open up or access the 8080 tcp port externally?如何从外部打开或访问 8080 tcp 端口?
$ nc -lv 8000
$ nc -z 192.168.101.98 8000
Connection to 192.168.101.98 port 8000 [tcp/irdmi] succeeded!
$ nc -lv 8080
$ nc -z 192.168.101.98 8080
(The command just hangs) $ nc -z 192.168.101.98 8080
(命令就挂了)
$ lsof -P -i TCP:8000
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nc 75782 ... 3u IPv4 0x5be3e11e5a732339 0t0 TCP *:8000 (LISTEN)
$ lsof -P -i TCP:8080
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nc 75952 ... 3u IPv4 0x5be3e11e581e2fb9 0t0 TCP *:8080 (LISTEN)
$ sudo pfctl -s all | grep Status
No ALTQ support in kernel
ALTQ related functions disabled
Status: Disabled Debug: Urgent
I am running macOS Mojave 10.14.1 (same behavior on 10.14 as well).我正在运行 macOS Mojave 10.14.1(在 10.14 上也有相同的行为)。
I changed nothing, everything suddenly works.我什么都没改变,一切都突然起作用了。 I am very curious what made the difference.我很好奇是什么造成了不同。 Will close the question, if everything keeps working.如果一切正常,将结束这个问题。
I had the Endpoint Security VPN client installed.我安装了Endpoint Security VPN客户端。 This activates a firewall at all times blocking some ports.这会始终激活防火墙阻止某些端口。 Even when not connecting to a vpn server.即使没有连接到 vpn 服务器。
By shutting down the client daemon, i can access all ports again.通过关闭客户端守护程序,我可以再次访问所有端口。
From: https://gist.github.com/phoob/671e65332c86682d5674来自: https : //gist.github.com/phoob/671e65332c86682d5674
kill client and run commands to stop daemon:杀死客户端并运行命令来停止守护进程:
sudo launchctl unload /Library/LaunchDaemons/com.checkpoint.epc.service.plist
sudo kextunload /Library/Extensions/cpfw.kext
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