Apache/2.4.33 with ISPConfig/3.1.15p2 no LE Bundle Certificate
short description
ISPConfig is not setting SSLCertificateChainFile when using Let's Encrypt for an Aliasdomain.
correct behaviour
ISPConfig should use all three parts of the certificate, as LE is not containing the chain certificate in the cert.pem
environment
Server OS: Ubuntu 16.04.4 LTS Server OS version: Xenial ISPConfig version: 3.1.15p2
proposed fix
Reactivate the bundle after the if-condition in line 1232 in plugins-available/apache2_plugin.inc.php