Thank you for your reply!
Sounds like a lot of work but will try it now 
I'll follow the rest of that guide to install nginx.
You're talking about
For Apache, it's just a matter of activating proxy_ajp module and create the rules:ProxyPass / ajp://localhost:8009
ProxyPassReverse / ajp://localhost:8009
But that's only for Apache and not nginx?
Sure!
Got this from the same guide but then the part of installing nginx as proxy.
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
http {
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
root /usr/share/nginx/html;
location / {
proxy_pass http://127.0.0.1:8081;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
#location / {
#}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
# Settings for a TLS enabled server.
#
# server {
# listen 443 ssl http2 default_server;
# listen [::]:443 ssl http2 default_server;
# server_name _;
# root /usr/share/nginx/html;
#
# ssl_certificate "/etc/pki/nginx/server.crt";
# ssl_certificate_key "/etc/pki/nginx/private/server.key";
# ssl_session_cache shared
SL:1m;
# ssl_session_timeout 10m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
#
# # Load configuration files for the default server block.
# include /etc/nginx/default.d/*.conf;
#
# location / {
# }
#
# error_page 404 /404.html;
# location = /40x.html {
# }
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# }
# }
server {
listen 443;
server_name _;
ssl_certificate /etc/nginx/ssl/alfresco.crt;
ssl_certificate_key /etc/nginx/ssl/alfresco.key;
ssl on;
ssl_session_cache builtin:1000 sharedSL:10m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
ssl_prefer_server_ciphers on;
access_log /var/log/nginx/ssl.access.log;
location / {
proxy_pass http://127.0.0.1:8081;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
## This is the last curly bracket before editing the file.
}
}
### EDIT:
Somehow Alfresco seems to keep trying to function on http or something..
So login is not working on https and when I go to https://my.domain.com/share it sends me to http://my.domain.com/share/page (so on the http side..) and also the Logout button only works when I navigate to Alfresco on the http side, not on https.
### EDIT2:
Uhmmm okay but when I browse the normal http side of Alfresco, Edit Online does work now... 
And.... (on http) on the site dashboard it says error loading items (see attachment) but in Document Library the documents are available.
