I need some help.
I set up a reverse proxy, which I call and it redirects me to the target address. Everything works, but after some time (a few hours) I start getting 503 instead of 200, and then I have to restart the proxy and everything works again. Below I’m sending the proxy configuration.
What have I configured incorrectly?
haproxy.cfg:
global log /dev/log local0 debug daemon defaults log global mode http option httplog option dontlognull timeout connect 5000 timeout client 60000 timeout server 60000 retries 3 resolvers mydns nameserver dns1 127.0.0.53:53 nameserver dns2 1.1.1.1:53 resolve_retries 3 timeout resolve 1s timeout retry 1s hold valid 30s hold nx 10s hold obsolete 30s frontend SITEA_front bind *33443 ssl crt /etc/haproxy/certs/proxy.SITEB.com_combined.pem alpn h2,http/1.1 mode http option httplog enter code here default_backend SITEA_back backend SITEA_back mode http option http-keep-alive option forwardfor option redispatch timeout connect 5s timeout client 60s timeout server 60s timeout http-keep-alive 30s server sitea1 sitea.com:443 ssl verify required ca-file /etc/haproxy/certs/sitea-chain.crt sni str(sitea.com) resolvers mydns resolve-prefer ipv4 http-request set-header Host sitea.com 
