problems of ports after upgrading to 126.96.36.199
There were 3 errors like :
"(98)Address already in use: make_sock: could not bind to address [::]:443"
With ports 80, 443, 8081.
The error with port 80 disappeared when I stopped lightppd (which was listening on port 81).
The error with port 443 disappeared when I removed an extra line "Listen 443" which was added by ispconfig upgrade.
And after that, apache has started with no error on port 8081 (apps).
A bug ?