Xdebug 问题：连接到客户端超时（等待：200 毫秒）。 :-(

Question

I am keep getting this error in Xdebug log:

Time-out connecting to client (Waited: 200 ms). :-(

And debugger in PhpStorm is not working at all.

$ php -v
PHP 7.3.21 (cli) (built: Aug  4 2020 11:21:19) ( ZTS MSVC15 (Visual C++ 2017) x64 )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.21, Copyright (c) 1998-2018 Zend Technologies
    with Xdebug v2.9.6, Copyright (c) 2002-2020, by Derick Rethans

My PHP Ini:

[xdebug]
zend_extension=".../php_xdebug-2.9.6-7.3-vc15-x86_64.dll"
xdebug.profiler_append=0
xdebug.profiler_enable=1
xdebug.profiler_enable_trigger=0
xdebug.profiler_output_dir = ".../tmp"
xdebug.profiler_output_name = "xdebug_profile.%R::%u"
xdebug.remote_enable=On
xdebug.remote_handler=dbgp
xdebug.remote_host=127.0.0.1
xdebug.remote_mode=req
xdebug.remote_port=9001
xdebug.auto_trace=1
xdebug.collect_includes=1
xdebug.collect_params=1
xdebug.idekey=PHPSTORM
xdebug.remote_autostart=1
xdebug.remote_log=".../logs/xdebug.log"
;xdebug.remote_connect_back=1

Log out:

==> xdebug.log <==
[17080] Log opened at 2021-02-18 20:10:25
[17080] I: Connecting to configured address/port: 127.0.0.1:9001.
[17080] E: Time-out connecting to client (Waited: 200 ms). :-(
[17080] Log closed at 2021-02-18 20:10:25

PhpStorm Debug Settings:

Answer 1

In search, I got to the point that something was blocking the request from the docker to the local machine on port 9000 9003. In the end, I solved the problem by adding new 2 rules to the ubuntu ufw firewall and it all worked.

sudo ufw allow in from 172.16.0.0/12 to any port 9000 comment xDebug9000
sudo ufw allow in from 172.16.0.0/12 to any port 9003 comment xDebug9003

Specifically, you need to open port 9001. As in the examples above. Also, instead of localhost in xdebug.client_host, I specified my IP on the local network.

Address:   172.16.0.0            10101100.0001 0000.00000000.00000000
Netmask:   255.240.0.0 = 12      11111111.1111 0000.00000000.00000000
Wildcard:  0.15.255.255          00000000.0000 1111.11111111.11111111
=>
Network:   172.16.0.0/12         10101100.0001 0000.00000000.00000000 (Class B)
Broadcast: 172.31.255.255        10101100.0001 1111.11111111.11111111
HostMin:   172.16.0.1            10101100.0001 0000.00000000.00000001
HostMax:   172.31.255.254        10101100.0001 1111.11111111.11111110
Hosts/Net: 1048574               (Private Internet)