On Fri, May 13, 2016 at 02:13:05AM -0400, RT.Nat wrote: Hi there,
why do you think that this does not work? As in: what request do you make that give you an unexpected response? And can you also show the "dig" command that shows that the nominated dns server has changed the resolution address that it provides? > I tried adding the variable for resolving the dns but still the ip address > does not changes. Is there any other way? or is there any bug in my script. When I use: == http { server { listen 8080; resolver 8.8.8.8 valid=20s; set $up "www.example.net"; location / { proxy_pass http://$up; } } } == I can do: date; while :; do curl http://127.0.0.1:8080/; sleep 3; done and I can also do tcpdump -nn port 53 and the first command shows the remote web server content every few seconds, while the second command show that a new dns request is made more than 20 seconds after the previous one: === 21:31:00.572450 IP 192.168.224.128.52862 > 8.8.8.8.53: 12516+ A? www.example.net. (33) 21:31:00.631578 IP 8.8.8.8.53 > 192.168.224.128.52862: 12516 1/0/0 A 93.184.216.34 (49) 21:31:23.829429 IP 192.168.224.128.52862 > 8.8.8.8.53: 5096+ A? www.example.net. (33) 21:31:23.873474 IP 8.8.8.8.53 > 192.168.224.128.52862: 5096 1/0/0 A 93.184.216.34 (49) 21:31:47.135984 IP 192.168.224.128.52862 > 8.8.8.8.53: 37996+ A? www.example.net. (33) 21:31:47.165754 IP 8.8.8.8.53 > 192.168.224.128.52862: 37996 1/0/0 A 93.184.216.34 (49) === Now, I don't control the google name server, and I can't make www.example.net get an updated address at will; but the above does seem to show that the nginx resolver is making a fresh dns request when it is supposed to. Do you see something else in your test? f -- Francis Daly fran...@daoine.org _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx