Cannot access Webmail and Service Status shows all ports closed

[americanninja]

Something strange has happened to my Sentora server. Basically, I was sending some outbound email and all of a sudden I couldn't send email anymore. I thought it was a network issue on my computer, but the next day I could no longer log into webmail (roundcube) via Sentora's control panel.

Basically when trying to log in, it just says 'loading...' for several minutes and then shows an error message of 'Connection to storage server failed.'

Not sure what this means. But basically I can no longer log into my email via webmail. Even creating a brand new email through Sentora's control panel results in the same message when trying to log in to the new email account.

When attempting to load the Sentora 'server status' page, it takes several minutes to load and then displays that all ports are closed. See attached screenshot. Port 80 is obviously not closed, as the websites are still displaying and functioning as usual. Also, all of my email accounts and their forwards are working and email appears to be processing through the server.

So current situation is I can't seem to get the status of the server to show correctly and I can't access my email that is stored on the server. One other thing I noticed as well, is I cannot seem to successfully execute a shutdown -r now command. After running this via SSH, the server goes offline but never comes back up. I have to do a hard reboot via DigitalOceans (my VPS providers) control panel and then the server comes back up.

It seems something is royally messed up. Anyone have any ideas or where I can start looking to identify the problem and solution?

Thanks!

[Me.B]

Rebooted server? Firewall?

Did you check server load? Services running not using sentora panel?

[americanninja]

Hi there,

Yep, tried just about everything. Rebooted the server, no firewall issue as I could access all the sites as usual. Reboot didn't seem to fix anything. I also did not touch anything on the server or make any changes the week it started having this behavior. It was almost like something just became corrupted and was unable to recover. No idea. I have this server on Digital Ocean with weekly backups, so after getting no where on isolating what the issue actually was or how to fix it, I decided to just try to recover from the backup 4 days prior to noticing this issue. Backup restored the site to 11/23 and things went back to operation as normal. I could load the system status page in Sentora, I could access email through the webmail system. So no idea what became corrupted or what was even affected by this other than the webmail, but recovering for a few days prior brought me back to a working state.

So we can close this issue, but it would have been nice to know what caused it and how to prevent it. Perhaps we can leave this thread post up so that if someone searches for these symptoms and they still have the issue they can get help from the community.