<div dir="auto">Anyone?</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 19, 2020, 5:25 PM satay <<a href="mailto:nginx-forum@forum.nginx.org">nginx-forum@forum.nginx.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Maxim,<br>
<br>
Thanks for responding. I agree with your recommendation.  I guess a direct<br>
upgrade from 1.12  to 1.16 (free community version) is possible and<br>
shouldn't break it.<br>
<br>
I'm preferring 1.61 since it's the latest stable version.  Beside the<br>
upgrade, do you recommend any performance tuning should be done?<br>
<br>
Thanks<br>
<br>
<br>
FYI - This is the error I see in the "dns.log" occurring frequently. <br>
<br>
2020/02/19 16:47:28 [error] 19509#0: *4852298929 no live upstreams while<br>
connecting to upstream, udp client: x.x.x.x, server: <a href="http://0.0.0.0:53" rel="noreferrer noreferrer" target="_blank">0.0.0.0:53</a>, upstream:<br>
"dns_servers", bytes from/to client:50/0, bytes from/to upstream:0/0<br>
<br>
This is the nginx.conf ---<br>
<br>
<br>
worker_processes auto;<br>
error_log /var/log/nginx/error.log;<br>
<br>
include /usr/share/nginx/modules/*.conf;<br>
<br>
events {<br>
}<br>
<br>
stream {<br>
    upstream dns_servers {<br>
        server x.x.x.x:53 fail_timeout=60s;<br>
        server x.x.x.x:53 fail_timeout=60s;<br>
        server x.x.x.x:53 fail_timeout=60s;<br>
    }<br>
    server {<br>
        listen 53  udp;<br>
        listen 53; #tcp<br>
        proxy_pass dns_servers;<br>
        error_log  /var/log/nginx/dns.log info;<br>
        proxy_responses 1;<br>
        proxy_timeout   5s;<br>
    }<br>
}<br>
<br>
http {<br>
index index.html;<br>
server {<br>
listen 80 default_server;<br>
server_name _;<br>
access_log /var/log/nginx/access.log;<br>
server_name_in_redirect off;<br>
root  /var/www/default/htdocs;<br>
allow x.x.x.x;<br>
deny all;<br>
location /nginx_status {<br>
    stub_status on;<br>
    access_log off;<br>
}<br>
}<br>
}<br>
<br>
Posted at Nginx Forum: <a href="https://forum.nginx.org/read.php?2,287053,287069#msg-287069" rel="noreferrer noreferrer" target="_blank">https://forum.nginx.org/read.php?2,287053,287069#msg-287069</a><br>
<br>
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</blockquote></div>