upstream backends_tor { least_conn; server 192.168.8.1:9050 weight=10 max_fails=2 fail_timeout=30; server 192.168.8.3:9050 weight=10 max_fails=2 fail_timeout=30; server 192.168.2.1:9050 weight=5 max_fails=2 fail_timeout=30; server 192.168.2.190:9050 weight=5 max_fails=2 fail_timeout=30; } upstream backends_netcup { least_conn; server 192.168.8.3:1080 weight=10 max_fails=2 fail_timeout=30; server 192.168.8.1:1080 backup; } upstream backends_dns { least_conn; server 192.168.2.190:53 weight=10 max_fails=2 fail_timeout=30; server 192.168.8.3:53 backup; }