Connection with 'xdebug 2.4.1' was not established.

[0xuhe]

I followed the guide of xdebug for phpstorm step by step.
But got the following issue.
Connection with 'xdebug 2.4.1' was not established

I'm not sure if I have configured correctly.
In the host, I add some host in etc/hosts

127.0.0.1       laravel
172.18.0.1      dockerhost

In the docker-compose.yml

### workspace contaner

extra_hosts:
            # IMPORTANT: Replace with your Docker Host IP (will be appended to /etc/hosts)
            - "dockerhost:172.18.0.1"


### php-fpm container

 extra_hosts:
            # IMPORTANT: Replace with your Docker Host IP (will be appended to /etc/hosts)
            - "dockerhost:172.18.0.1"
        environment:
            # IMPORTANT: Set the Remote Interpreter entry matching name to `laravel`
            - PHP_IDE_CONFIG=serverName=laravel

I have configured the ssh, so I could ssh with the command ssh -p2222 root@laravel, and success visit http://laravel/ in host browser.

phpunit worked fine, but failed when debug.

sftp://root@laravel:2222/usr/bin/php \ 
  -dzend_extension=/usr/lib/php/20151012/xdebug.so\
  -dxdebug.remote_enable=1 \
  -dxdebug.remote_mode=req \
  -dxdebug.remote_port=9000 \
  -dxdebug.remote_host=172.18.0.1 
  /var/www/laravel53/vendor/phpunit/phpunit/phpunit \
  --configuration /var/www/laravel53/phpunit.xml ExampleTest \ 
  /var/www/laravel53/tests/ExampleTest.php --teamcity

I noticed that it is php7.0.9 in php-fpm container, but we actually using the php7.0.12 cli in workspace.

[LarryEitel]

What is the exact error message?

[0xuhe]

Connection with 'xdebug 2.4.1' was not established when debuging in phpstorm

[0xuhe]

I noticed that xdebug.remote_host=dockerhost in php-fpm container and workspace container, I modify in extra_hosts part dockerhost:172.18.0.1. This ip is my host ip

[LarryEitel]

Here is 'a' way to find the correct IP for laravel that you would place in your hosts file:

[0xuhe]

I am using MacOS, I find my host ip in nginx logs, that is 172.18.0.1

[LarryEitel]

I run on Windows 10. I wonder if anyone using MacOS can respond to this.

[LarryEitel]

I am aware of at least one other MacOS user that was unable to connect to local IP from Docker Contain. Never heard anything further.

[0xuhe]

I find that the PHPSTORM always get the php information as xdebug.remote_enable 0.
I have tried uncomment the line zend_extension=xdebug.so in /etc/php/7.0/cli/conf.d/20-xdebug.ini, so I saw the xdebug.remote_enable on=>on in workspace container. but PHPSTORM seems still get the php information as xdebug.remote_enable 0.

[aledelgo]

Hello,
found the real problem inspecting forced xdebug logs...
I'm on windows 10 and i'm gettnig the same problem connecting to xdebug for both UnitTest and remote debugging.

The problem is that, on NGINX side, requests seems to come from the gateway of docker instead from the dockerhost ip.

See this nginx access.log line:
172.20.0.1 - - [05/Dec/2016:10:36:07 +0000] "GET / HTTP/1.1" 404 162 "-" "-"

the IP is 172.20.0.1 but my dockerhost ip (the one on the Docker network i have on windows) is 10.0.75.2

this is the xdebug log:

Log opened at 2016-12-05 14:42:22
I: Checking remote connect back address.
I: Checking header 'HTTP_X_FORWARDED_FOR'.
I: Checking header 'REMOTE_ADDR'.
I: Remote address found, connecting to 172.20.0.1:9000.
W: Creating socket for '172.20.0.1:9000', poll success, but error: Operation now in progress (29).
E: Could not connect to client. :-(
Log closed at 2016-12-05 14:42:22

also, while checking port 9000 on 10.0.75.2 (my docker host) from the php-fpm container give an OK (i mean php-fpm can reach that port on that ip), the same check on 172.20.0.1:9000 give a KO:

timeout 1 bash -c 'cat < /dev/null > /dev/tcp/172.20.0.1/9000'
bash: connect: Connection refused

This is the inspection of php-fpm container:

                    "Gateway": "172.20.0.1",
                    "IPAddress": "172.20.0.2",

Now i'm missing how to solve this problem as apparently Nginx is not used as reverse proxy so i would avoid remote-address replacing.

Do you know of any solution?

PS. a solution that worked for me after discovering this is to set
xdebug.remote_connect_back=0
This force xdebug to use
xdebug.remote_host=dockerhost
as remote host and not the remote_address that is wrong

Anyway actually it seems phpstorm can't show me the execution point, it breaks but i don't see where the execution point is in the code. probably this is an IDE/mapping problem i have to investigate.

[aledelgo]

Hello,
further investigating take me to this post:
dockerfile/nginx#27
that states the problem is with docker and ipv6, so i disabled IPV6 binding on NGINX but it doesn't work. remote_addr is still set with the bridge ip.

then i've read this on the docker repo:
moby/moby#15086

it seems is a known problem.

[mikeerickson]

Has anybody gotten this to work on macOS? I have been fighting this for past two hours and getting nowhere :-(

[lechengyu]

I am running laradock on windows10 with docker 1.12.5(9503), and the host ip in docker is 172.18.0.1.

These settings works for me:

• for laradock configurations, set xdebug.remote_connect_back = 0

• in phpStorm debug configurations, set the interpreter options

  

[HolyKindom]

@lechengyu it works! You solve the problem I have met for a long time.
Specify the interpreter options in Command Line (:"-dxdebug.remote_host=10.0.75.1") can solve the problem which is met in phpstorm.
PS:"10.0.75.1" is the host ip for docker(Hyper-v) in Windows.On mac ,maybe we can use a loopback ip ****.
Whatever,before debugging the testcase,we can "telnet **** 9000" to test if the xdebug in the docker can connect the host and port. And **** is the truely remote_host ip.
( Remember : click the 'telephone icon' in the tool-menu of the phpstorm at the top left corner !)

[appleboy]

@lechengyu Could you send the PR to improve document?

[NewbMiao]

@HolyKindom
For mac, the ip you mean is what ifconfig en0 show? right?
For my mache it is inet 172.16.30.192 netmask 0xffffff00 broadcast 172.16.30.255
so i changed dockhost

 extra_hosts:
            # IMPORTANT: Replace with your Docker Host IP (will be appended to /etc/hosts)
            - "dockerhost:172.16.30.192"

Now i can debug with php-fpm.
But I still dont know am i do this right, cause my host ip will be changed when i changed wifi!

Updated:
I found a way to make host ip never changed:
set host ip never changed

[ricardosaracino]

I just spent to long on this issue I had remote_connect_back set to 1 incorrectly. Thanks to @lechengyu

this is the config that works
; Enable xdebug extension module
zend_extension=/usr/lib64/php/modules/xdebug.so
xdebug.remote_enable=1
xdebug.remote_connect_back=0
xdebug.remote_port=9001
xdebug.profiler_enable=0
xdebug.profiler_output_dir="/var/www/html"
xdebug.remote_handler=dbgp
xdebug.remote_mode=req
xdebug.remote_host=192.168.0.11
xdebug.idekey="IDEA_DEBUG"
xdebug.remote_autostart=1
xdebug.remote_log=xdebug_remote.log

[felly]

In my case I've added the following Interpreter options at the PHPUnit Run Configuration:
-dxdebug.remote_host=host.docker.internal