Sign up to take part
Registered users can ask their own questions, contribute to discussions, and be part of the Community!
Registered users can ask their own questions, contribute to discussions, and be part of the Community!
Hi,
I have installed DSS on the Oracle Cloud Ubuntu 20.04 LTS instance. The installation was successful, but I cannot access the DSS start page by using the public IP address and the port number used for the installation. I have already started DSS by using the start command, the VM is also running, but I am unable to access the DSS home page. I have attached 3 screenshots showing the:
Has anyone tried this before and faced a similar issue? I am a beginner in cloud instance and VM management, hence, not being able to debug the issue myself. Any help is much appreciated. Many Thanks.
Hi @pallabtableau ,
The browser message 'Connection Refused' has two main causes:
As DSS installed and started successfully and assuming you are not using a proxy, I will suspect that either the server firewall (if installed) or the cloud provider firewall blocks the port.
To test this, you can use curl or telnet commands:
curl -v ip:port
telnet ip port
or create the SSH tunnel on port 11000 and try to access the DSS using localhost:11000 URL:
ssh -L 11000:localhost:11000 user@host
If the curl or telnet tests are unsuccessful or if you used SSH tunnelling and can access DSS using localhost:11000 URL, that means the port is blocked, and you will need to open the port in the firewall before you are able to access DSS using ip:port URL
Hope this helps.
Best Regards,
Vitaliy
Hi @VitaliyD ,
Many thanks for your reply. I tried the curl command to the same public IP and 11000 port, and below is the output:
ubuntu@vnc-jm:~$ curl -v 152.70.65.90:11000
* Trying 152.70.65.90:11000...
* TCP_NODELAY set
* connect to 152.70.65.90 port 11000 failed: Connection timed out
* Failed to connect to 152.70.65.90 port 11000: Connection timed out
* Closing connection 0
curl: (28) Failed to connect to 152.70.65.90 port 11000: Connection timed out
So it appears that it could be the firewall blocking the access. But I am not sure how to open the port in the firewall, can you please help with any suggestions?
I then tried the SSH command as well, but I am confused on the user@host phrase. Please let me know if my understanding is correct:
here, host refers to the same IP address (152.70.65.90)? how about the user, should it be the username of the VM? when I try the below command, it gives me the below error:
ubuntu@vnc-jm:~$ ssh -L 11000:localhost:11000 ubuntu@152.70.65.90
ubuntu@152.70.65.90: Permission denied (publickey).
ubuntu@vnc-jm:~$
I am attaching the screenshot from the OCI site as well for your quick and easy reference.
Many thanks for your help.
Regards,
Pallab
Hi @pallabtableau,
By searching the internet, I found an article in Oracle help centre on how to open a port to permit the traffic to your VM on a specific port that may be useful. If this won't help, you may need to contact Oracle Cloud support for guidance. Please find it below:
Regarding SSH tunnelling, from the screenshot you provided earlier, you used "ubuntu" user and successfully connected to the VM. However, I can see that additionally, you specified the SSH key in the command, so in your case, the full command should be:
ssh -i id_rsa -L 11000:localhost:11000 ubuntu@152.70.65.90
After logging in with the above command, you will need to start DSS as you did previously, and then you should be able to access it using the "localhost:11000" URL in your web browser.
Hope this helps.
Best,
Vitaliy
Hi @VitaliyD ,
Thanks a lot for your help. I could access by following the SSH tunnel method. Will try opening port as well later. You are the best! Thanks again.
Regards,
Pallab