Fix NGINX Error: could not allocate new session in SSL session shared cache “le_nginx_SSL” while SSL handshaking

A typical web server error with NGINX and Certbot, which I recently discovered in error.log: It is an error that occurs sporadically, only in certain scenarios and most often on high traffic websites. Large number of queries. "Le_nginx_SSL", as can be deduced from the name, is responsible for the SSL sessions served… Read More