Lets encrypt certificate reverse proxy setup

I have experience in deploying and maintaining of: Cloud Computing Platforms: AWS Amazon Web Services,Microsoft AZURE, Google Cloud (GCP). Server Operating Systems: Windows Server 2003-to-2012R2, Windows Server 2016 Amazon Linux, Debian, RHEL, CentOS, Ubuntu. Web servers and servlets containers: IIS, APACHE, NGINX, DOCKER Mail servers: POSTFIX, EXIM, MS Exchange 2000-to-2013, MS Exchange 2016, QMAIL Database servers: MySQL, MS SQL Virtualization: MS Hyper-V, VMware Server(ESXI), VirtualBox. Directory service: Active Directory, OpenLDAP. File servers: IIS FTP, proftpd, FileZilla FTP Server, SAMBA. Firewalls: Windows firewall,ISA/Forefront TMG, MikroTik,PFSense Zywall and other Routers; Data Storage Systems: Netapp, FAS, EMC, VNX; Hosting Panels: PLESK,cPanel,Website Panel

Hello, I have some questions: * What is the operating system? (WS 2008R2, 2012R2,2016, 2019) * Are you using IIS AAR? * Is the server on a DMZ? * Is this a production environment? My name is Julian and I work as a sysadmin for four years now. I'm specialized on general Widnows Server roles, AD, Exchange, Office 365, Azure, IIS, Hyper-V. My english is not great but I can understand anything. I have the follwing certifications: * MCSE Productivity - 2018 * MCSE Cloud Platform & Infrastructure - 2018 Regards,

Having 11years experience in Windows system administrator, IIS, CPANEL, AWS, MYSQL, MSSQL. PLEASE FEEL FREE TO CONTACT ME FOR ANY CLARIFICATION.