I am using nginx version 1.16.1 as a forward proxy on a CentOS 7 server. Our order inventory server (ORDINV) connects through the nginx server (TAXPROXY) to request sales tax info from a cloud server. We are in test mode with this configuration. This all has been working well, except when they stop testing for a while, the taxproxy server stops working. The error log shows 2020/02/17by cyoho - Nginx Mailing List - English