I'm having an issue with Webmin after updating from version 1.690 to 1.791 and switching from MySQL 5.5.39 to MariaDB 5.5.48. I can no longer bring up the MySQL plugin.
Running on Gentoo linux, amd64/x86_64. From the "emerge --info":
Portage 2.2.26 (python 3.3.5-final-0, default/linux/amd64/13.0, gcc-4.9.3, glibc-2.22-r4, 3.14.14-gentoo x86_64)
It worked as expected with MySQL before the updates and switch. Now, it waits a few seconds and then gives the error message(s):
From Chrome:
"The server closed the connection without sending any data."
From Mozilla-based browsers (Firefox, Seamonkey, etc.):
"Secure Connection Failed
The document contains no data.
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem."
And, nothing regarding the issue (nor even the request to bring up the MySQL plugin) is put into miniserv.log, miniserv.error or webmin.log.
Looking around this forum and the web, it looks like it's a recent issue with very little information as to the cause or workaround.
As a note, I just looked at an earlier version of the server that is still running Webmin 1.690.
(From "emerge --info": Portage 2.2.8-r1 (default/linux/amd64/13.0, gcc-4.7.3, glibc-2.19-r1, 3.14.14-gentoo x86_64)
Just removing MySQL 5.5.39 and installing MariaDB 5.5.39, Webmin brings up the MySQL Database Server page with no problems.
Does this still happen if you switch off SSL mode in Webmin?