Resolved I can't access my plesk

[Solarom]

Server operating system version

Ubuntu 22.04 LTS (Jammy Jellyfish)

Plesk version and microupdate number

Plesk Obsidian 18.0.59.2

Hello, I can no longer access my administration page.
When I try to access port 8443, the page displays: ‘ERR_CONNECTION_TIMED_OUT’.

All websites are accessible. Only the administration page is no longer accessible.
I try to access it from web-plesk.araik.fr
I no longer own the araik.fr domain name
Could this be the problem?

If so, how can I change it if I can no longer access the panel?

 

[Kaspar]

You can try to access Plesk on your server using your servers ip with port 8443. So for example 123.123.123.123:8443. When your are logged in you can change the host name of the server. More information on changing the host name can be found here: https://support.plesk.com/hc/en-us/...ge-or-get-the-server-hostname-on-Plesk-server

 

[Solarom]

Thank you for your reply.
I managed to change the name in ssh. Unfortunately I still don't have access to my server.

Can you tell me if you can access it at this address?

https://195.110.35.159:8443/

How do I get access?

 

[Alex Presland]

Hi @Solarom

It is worth confirming that your server is listening on Port 8443. I'm also on a Ubuntu 22.04 based server and get the following when checking which ports are open:

alex@mypleskserver:~$ sudo ss -tl | grep 8443
LISTEN 0      511                           0.0.0.0:8443             0.0.0.0:*
LISTEN 0      511                              [::]:8443                [::]:*
alex@mypleskserver:~$

Note that this is showing both IPv4 and IPv6 listening sockets - you may only get one of the two that I get. If your server shows something similar then I think that something is firewalling port 8443 and stopping you getting to it. This could either be on your server or in your ISP's network. The reason that I say this is that connections are timing out (being dropped). If they were reaching the server and the port wasn't open, it would fail immediately.

alex@myhomeserver:/tmp$ wget https://195.110.35.159:8443/
--2024-04-24 23:58:03--  https://195.110.35.159:8443/
Connecting to 195.110.35.159:8443... failed: Connection timed out.
Retrying.

--2024-04-25 00:00:14--  (try: 2)  https://195.110.35.159:8443/
Connecting to 195.110.35.159:8443... failed: Connection timed out.
Retrying.

--2024-04-25 00:02:26--  (try: 3)  https://195.110.35.159:8443/
Connecting to 195.110.35.159:8443... failed: Connection timed out.
Retrying.

--2024-04-25 00:04:40--  (try: 4)  https://195.110.35.159:8443/
Connecting to 195.110.35.159:8443... ^C
alex@myhomeserver:/tmp$

I hope that this helps you get to the bottom of the issue.

 

[Kaspar]

No, I can't access your IP your port 8443 either. I addition to the great suggestion of @Alex Presland, it might be worth to check if the Plesk service component is actually running. You can use following commands to check the status:

service sw-engine status
service sw-cp-server status

 

[Solarom]

Okay, I have carried out the orders you requested.
What do we do now please?

 

[Alex Presland]

Contact your ISP Support and get them to open port 8443 in their firewall

 

[Solarom]

but I can't access it even using my phone. It's not the same operator though.

 

[Kaspar]

The Plesk service components are running and port 8443 looks to be open on your server. Yet something is blocking access to port 8443. It's hard to say what that is exactly. My best guess would be the firewall of your hosting provider. I would suggest to contact them and explain that access to port 8443 is blocked, but open on your server.

Alternatively you can configure a custom URL to access Plesk without port 8443. To configure a custom URL you can use the following command: plesk bin admin --enable-access-domain plesk.example.com (Replace plesk.example.com with your own URL.)

More information on customizing the Plesk URL can be found here:

Customizing Plesk URL

You can choose various options to log in to Plesk Obsidian. By default, you can log in to Plesk via the server IP add...

docs.plesk.com

 

[Alex Presland]

but I can't access it even using my phone. It's not the same operator though.

Sorry, wrong wording... please contact your SERVER PROVIDER and ask them to open up inbound port 8443 to your server in their firewall.

@Kaspar has also given a good alternate solution of using the "enable access domain" feature, if your server provider won't open up inbound port 8443.

 

[Solarom]

Thank you, it works. It was indeed the firewall blocking the port.