I'm creating a PAAS provider with openVZ virtual machines on proxmox.
I want to use noVNC to access the instances in another website different than proxmox console.
I used an url with this form
wss://promox_ip:8006/api2/json/nodes/node_name/openvz/instance_id/vncwebsocket?port=5900&vncticket=vnc_ticket
I'm always getting this error:`
connection closed unexpectedly.
`
note that i use a new ticket each connection.
Finally solved by adding modifications to HTTPerver.pm file under
/usr/share/perl5/PVE/
to Allow accessing novnc console when not logged in.
Then send POST resquest to
/api2/json/nodes/{node}/lxc/{vmid}/vncproxy
and get ticket and port.
Then you can connect via websocket to this link
/api2/json/nodes/{node}/lxc/{vmid}/vncwebsocket
Related
Trying to establish a data connection using REST from QlikCloud account to a locally running application. I get an errror:
Connection to local resources is not allowed
The application running on my laptop is having a REST API enabled.
I was not able to use QlikSense Desktop so I had to login through the browser to QlikCloud.
I also tried giving the ipaddress of my laptop instead of localhost. It still throws as error:
Connection to http://<ip_address>:1000/v1/documents?uri=/csv/myFile.csv is not allowed
Should I be running my application only on a server? Any help is appreciated.
The data connections are "executed" in the context of the Qlik Engine. Which means that when specifying localhost the connection will try and load the data from the machine where the Engine is running. In Qlik Cloud case - this will be some machine in Qlik's cloud.
You can:
use QS Desktop (you've mentioned that this is not working for you)
host your service somewhere on the interned where the Engine can reach it
use some service (like ngrok) that can tunnel the local server to a public url which then access from Qlik
I cannot connect to my Google Cloud SQL database from my Macbook Pro using MySQL Workbench.
I have read the help file here:
https://cloud.google.com/sql/docs/mysql/admin-tools
I have added an authorized IP address for my IP per
https://cloud.google.com/sql/docs/mysql/configure-ip#add
I created a user for the database with it set to allow to connect from any host. I get the error "Can't connect to MySQL server on 'XX.XXX.XX.XXX' (60)
I have also attempted to telnet and get a consistent error that I am unable to connect to the remote host
As far as I know, I've followed all the steps but it really seems I'm getting blocked even before the server. I am trying to connect from home and I don't believe my home firewall is blocking things. I am wondering if there's something I need to open up on the GCE firewall but I have successfully connected to this database from other outside tools (e.g., Zapier).
Your best action right now would be to create a proxy with public IP address.
https://cloud.google.com/sql/docs/mysql/connect-external-app
This link will walk you through that process. If this doesn’t solve your issue, then taking your question to ServerFault (Stackoverflow sister site) might give you a better idea of how to fix your issue.
I am having problem to access a node js rest service deployed on an ubuntu virtual machine. I am able to access the VM using putty, however I am not able to ping the reserve ip from command line. I have put the logs in the rest service as when it gets the hit it prints the log, the logs are not getting printed. I want to know if there is any additional setting which needs to be done to open a port from the virtual machine or it is supposed to be open by default. If I need to open the port in order to access the service, where should I look for it.
Thanks & Regards
I want to know if there is any additional setting which needs to be
done to open a port from the virtual machine or it is supposed to be
open by default.
No, Azure will not open other ports by default, we should open ports manually.
I am not able to ping the reserve ip from command line
It is a classic VM, am I right? if so, we should make sure the rest service listening on which port, and add endpoints via Azure portal:
More information about create an endpoint please refer to this link.
If your VM in ARM module, we should add a inbound rules to NSG.
More information about NSG, please refer to this link.
I have set up a google cloud sql server using the tutorial on youtube. However, Whenever I try to connect to it through the browser, the connect to it through the browser, the error i am getting is ERR_CONNECTION_REFUSED . The firewalls I have set up correlate to whats in the browser. I can also SSH into the VM. But the VM always rejects my connection. I have been trying for days.
Here are my VM Settings allowing http connections
Here is my VM External IP Address
Here is what the browser tells me when i attempt to connect.
Are you referring to this video https://www.youtube.com/watch?v=_kQXgjIfLgo?
In that video there are some steps missing such as install the web server (e.g. Apache) and PHP in the VM. After you install them, you can execute the following command in the VM:
php /var/www/index.php
If it works you can see the source code of the resulting page and if not you'll have an error to solve (maybe a package to install like php-mysql).
Once you can see the resulting page in the VM you can try to load the page through the browser of your machine. If it still doesn't work there is an Apache or network misconfiguration.
I've recently purchased a cloud server which has public IP and I am using it to host an xmpp server.
My first task was to ensure my users connected using my subdomain - as an example m.chat.com.
In my configuration I have the following:
%% Hostname
{hosts, ["m.chat.com"]}.
I then created an admin user with that domain.
In parrellel I have created the following DNS record with my host provider, hostgator for my subdomain m.chat.com
Name TTL Class Type Record
m.chat.com 14400 IN A [IP of the server]
One thing that puzzled me was my ability to access the ejabberd web admin console. This was achieved via: [IP of the server]:5280/admin however I could not access it via m.chat.com:5280/admin
That aside, inside the web console, under "Virtual Hosts" I could see the host "m.chat.com". I created a user "user#m.chat.com" and tried to connect via Adium.
Inside Adium, simply typing in user#m.chat.com with the password did not work. Instead I had to also specify the "Connect server" which in this case was the [IP of the server].
It has connected fine and I have registered other users to check everything is working and it is.
Then I thought I'd go back to the ejabberd configuration and start messing around. I changed the hostname to the following:
%% Hostname
{hosts, ["m.chat.com", "facebook.com"]}.
I registered a user with that domain and restarted ejabberd. Upon checking the web console, to my surprise, I could see the Virtual host "facebook.com". I tested this user in Adium with the [IP of the server] defined in the "Connect server" section and it connected fine. I asked other people with their own internet connections to use this account on their PCs and they were able to connect too.
Story over - my question to everyone is how is this possible? Am I missing something? Is there no domain authentication. After searching online, it seems you can even use fake domains.
If I am to operate my own service in the future (iOS chat app) I do not want anyone using my domain names with their own public servers.
Can someone shine some light.
Thanks!
Edit: A second question - Preferably I do not want to have to define the "Connect Server" upon using a client. I would like the client to recognise the #m.chat.com domain and establish a connection to the Servers IP automatically. Have I configured my DNS record correctly? For anyone else using Hostgator, is there an additional task I must do?
Edit: I can now access the web console via m.chat.com:5280/admin and I no longer have to specify the Connect server when using a client. I didnt do anything, I think it was a case of Hostgater updating the DNS or something, they say it usually takes 4 hours. However I am still slightly puzzled as to why I can create accounts with the facebook.com domain. I understand that because I can not access the DNS admin for this domain I can not create any records but that does not prevent me from using the domain and just specifying a Connect server.
Your initial problems (unable to access the server by using m.chat.com) were almost certainly DNS issues, and it seems you have isolated that down to the time taken to update the record.
Your second question - about the fact that you can name virtual hosts without restriction, is simple but interesting. What makes you think there should be any kind of restriction? It would be like you dictating that I can't save "m.chat.com" in a file on my disk, or that I can't send "m.chat.com" in a message across the internet.
This is why DNS exists and is structured the way it is. Although I can tell my server that it hosts facebook.com, nobody will connect to it because the DNS record for facebook.com does not point at my server (users generally don't set the "connect host" manually). Which begs the question... why would I want to tell my server it hosts facebook.com, and if I did, why should Facebook care?
An additional, but relevant, identity layer on top of DNS are certificates - which clients should validate for the virtual host name in spite of any "connect host" set. Since it's not possible to have a certificate for facebook.com, clients should generally pop up warnings or fail to connect at all. If they don't, they're probably not validating the certificate correctly.