Cannot access Rstudio server (open source) from browser

Posit Professional products
1

I believe I have successfully installed the Rstudio-Server open source. However I cannot access it from the browser.
R version and server info are:
R version 4.0.2 (2020-06-22)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux 8.3 (Ootpa)

When I ran sudo rstudio-server verify-installation, I didn't get any message.
When I ran sudo Rstudio-server status, I got this:

● rstudio-server.service - RStudio Server
Loaded: loaded (/usr/lib/systemd/system/rstudio-server.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2021-05-06 12:54:14 EDT; 1h 7min ago
Main PID: 2651821 (rserver)
Tasks: 3 (limit: 3355442)
Memory: 17.6M
CGroup: /system.slice/rstudio-server.service
└─2651821 /usr/lib/rstudio-server/bin/rserver

I tried to access R studio from browser: http://servername:8787. It always have the ERR_CONNECTION_TIMED_OUT.

I have access to Rstudio server on a different machine. So I guess it is probably some setting on the new server.
I have been googling and tried several things, but none worked.
I tired ufw allow 22 and ufw allow 8787
I tried the sudo netstat -anp | grep 8787
here is the output:
tcp 0 0 0.0.0.0:8787 0.0.0.0:* LISTEN 2651821/rserver

Another thing that might help to figure out the problem is that when I tried to obtain the public key before installation (gpg --keyserver keys.gnupg.net --recv-keys 3F32EE77E331692F), I always get the time out error too. So I skipped this step.

I don't have much knowledge on the computer setups, cannot figure out where the problem is.
Any advice would be good.
Thanks.

2

Have you checked if you can access RStudio Server from within your local network? With local_server_ip:8787

Does your server has its own exclusive public IP? If not have you configured port forwarding in your router?

3

Thank you. The problem solved.
I have asked the IT department to enable 8787 port on local network, then I can access to the Rstudio Server log in page.
Then I did "cp /etc/pma.d/login /etc/pam.d/rstudio". Now I have access to the RStodio server.
Thank you!

4

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