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I have an Amazon Linux AMI server on AWS EC2, i have deployed "selenium docker" on it "https://github.com/elgalu/docker-selenium", the docker have a VNC running inside it.

Now how i could access this VNC?

I did some google search but did not found anything, also i tried to connect to the server ip and give the VNC display number but it gives connection refused.

I have added the VNC port as a rule on the server security rules.

Thanks.

Khalid Abdlqader
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1 Answers1

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Since you have already specified the firewall rules for your VNC server the problem is most likely in VNC port listening.

first, make sure that VNC is running on localhost run 

nc localhost 5901

nc = netcat (you may need to install the package) change 5901 to your port no

you can also view the running VNC instances by : 

vncserver -list

now if everything seems to be working run this command to show the port stats

sudo netstat -ntpl | grep 5901

change 5901 to your portname.

if something like

127.0.0.1:5901 is assigned to tcp then that's the problem , we need to make sure VNC is running on 

0.0.0.0:5901

which means it should accept all the traffic and not just localhost !

finally kill the vncserver by running vncserver -kill :1 (display name), run the command : 

vncserver -localhost no

P.S its an old question but may help future answer seekers.

Mir A
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