I'm trying to start my VLC Webinterface with "vlc -I http".
The Webserver starts, but there is no audio.
Here is the error message:
inhibit interface error: Failed to connect to the D-Bus session daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
main interface error: no suitable interface module
main interface error: no suitable interface module
main libvlc error: interface "globalhotkeys.none" initialization failed
I tried to unistall and reinstall VLC, but it didn't work.
What does that error message mean?
It means you're starting your VLC on a headless console, without access to X nor your DBUS session, which VLC would normally need to access the sound system.
Try specifying alsa as sound system via command line arguments, export DISPLAY=:0 before starting VLC (if you're currently logged in a graphical user interface).
Related
I managed to work with DevTools features in Selenium 4 locally, but when I tried to use it on Selenium Grid, it didn't work.
In order to investigate it, I installed a local grid with one Chrome node using docker-compose and I got the same error:
OpenQA.Selenium.WebDriverException : Unexpected error creating WebSocket DevTools session.
----> System.Net.WebSockets.WebSocketException : Unable to connect to the remote server
----> System.Net.Http.HttpRequestException : A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (172.18.0.3:4444)
----> System.Net.Sockets.SocketException : A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Where 172.18.0.3 is the private IP of chrome-node container.
I guess that the main reason is that I don't have access to that IP from the host, and that's probably a docker configuration matter, on which I'm not an expert. But that wasn't the only problem.
Using the debugger, I was able to track that the driver tries to use this address due to the following capability that is returned from the driver after creation: "se:cdp": "ws://172.18.0.3:4444/session/2c519f679e1060cdc926ca74e63e222f/se/cdp". I then tweaked this value (in the debugger, before trying to create the connection to the DevTools protocol) to use localhost instead of the private IP, and then I got the following error: IOException: The response ended prematurely..
What do I need to do in order to use the DevTools features of Selenium through Selenium Grid (and docker)?
Adding - SE_NODE_GRID_URL=http://localhost:4444/ environment to the "chrome" container in the docker-compose yaml file solves the problem.
If you want to access the grid from outside of the host, instead of localhost write the IP or name of the machine.
I am using windows 10 professional and I have installed docker using DockerToolBox, so I have a docker-machine running in VirtualBox. When trying to configure an interpreter in PyCharm using my docker-machine, I get the following error:
"Cannot connect: java.lang.NullPointerException: uri was not specified"
docker-machine error
When I choose 'TCP socket', I get the following error which is different from above:
"Cannot connect: java.io.IOException: Channel disconnected before any data was received"
TCP socket error
I am sure my docker-machine is running because I can connect to it using terminal tools like MobaXterm or XShell, and I can also connect to MySQL running in my docker-machine.
Replacing tcp:// by https:// in the api url works for me in Webstorm (Windows 8.1).
https://github.com/kubernetes/minikube/issues/580
I have tried thousands of methods, and finally resolved this problem. The solution is running pycharm as administrator. WTF
I have same issue.
You must check Pycharm logs. There is detailed information about error.
In my case Pycharm shows same error "Channel disconnected before any data was received".
But in logs i found that error is caused by:
"ERROR - HttpResponseStreamHandlerFixed - exceptionCaught before first read or disconnect, we may be hanging
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: No name matching "my_server_hostname" found"
In my case, the problem was that domain name that i connecting to is in not the same as hostname in SSL self signed cert installed in dockerd.
Domain name that you are connecting to must match domain name in SSL cert that dockerd uses.
I have to make hosts record (C:\Windows\System32\drivers\etc\hosts on Windows, and /etc/hosts on Linux) and connect to it.
And "https://" protocol is required :)
PS. You can check SSL cert hostname by opening Chrome browser to the docker API endpoint with https and opening certificate details.
I am learning ethical hacking via an online course. During my practice, I am cracking the wifi password of my own router, but I am getting the following error:
WARNING: Failed to associate with XXXXXXXX (ESSID: XXX)
Can anyone guide me how I fix this issue? The device is in monitor mode and the command I am using is:
reaver -i wlan0mon -b XXXXXXX -vv
After -b you should insert the mac address of your router. You may be able to find it if you run "airodump-ng wlan0mon"; make sure your device is in monitor mode. Airodump-ng comes with Kali, so if you're using Kali Linux you'll not have trouble using this command.
Remember, do not try this if you're not allowed to access the network you're trying to.
I have followed this link to run Selenium Server as a windows service: http://www.claytonstechnobabble.com/2011/08/run-any-application-as-windows-service.html
The service gets installed successfully but when I try to run it it gives error:
"The SeleniumRC service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs."
can you guys help me on that asap? what am I missing?
This is the selenium server file that I am trying to run: "selenium-server-standalone-2.5.0.jar"
Ali, you might try capturing the output from the service. Since the Java app is designed to be run in console mode, there is likely to be some useful explanation if you can capture std out and std err. Running the service with a wrapper like Java Service Launcher will provide that functionality to log the error information: http://jslwin.sourceforge.net/
Create a bat file containing
//cd Location of file
java -jar selenium-server-standalone-2.5.0.jar
then use this bat file to execute in service.
I am having trouble getting Rails autotest notifications to work on the Engine Yard Vagrant environment. On the Mac, I normally get the notifications via Growl. However, on the virtual environment (which runs Ubuntu) that doesn't work.
I tried running Linux notification setups such as libnotify+autotest-notification, but I get the following error:
libnotify-Message: Unable to get session bus: /bin/dbus-launch terminated abnormally with the following error: Autolaunch error: X11 initialization failed.
** (notify-send:1004): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (notify-send:1004): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (notify-send:1004): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
Another path would be to have Growl receive the notifications remotely, but I don't even know where to begin with that...
Any suggestions?
The web server won't have access to the desktop for notifications. This is generally a good thing, for security reasons.
In the Growl installer dmg is a program growlnotify, which can be tweaked into building on most Posix-ish systems and can send remote notifications. You will also have to configure Growl to receive remote notifications (System Prefeences > Other > Growl > Network).