Hi Everybody, I have installed Ispconfig on Debian 9 (by yours tutorial) and it's work well. If i view my website from external network, it's all ok but if i would access from same subnet (ex. mi smartphone 192.168.1.3) i can't access it. I view only ispconfig gui if i enter in my browser https://private_ip:port Server internal ip: 192.168.1.5 subnet: 255.255.255.0 Gateway: 192.168.1.1 On router i have dmz to server ip my question is: This is a problem of my webserver configuration? router loopback? or let's encript cert? i have a router of my ISP (Vodafone) and i can't change it, can i setup my server to show my website inside and outside my network? Tnx for reply and sorry for my English.