upstream

1.     upstream backends_tor {
2.         least_conn;
3.         server  192.168.8.1:9050   weight=10 max_fails=2 fail_timeout=30;
4.         server  192.168.8.3:9050   weight=10 max_fails=2 fail_timeout=30;
5.         server  192.168.2.1:9050   weight=5 max_fails=2 fail_timeout=30;
6.         server  192.168.2.190:9050 weight=5 max_fails=2 fail_timeout=30;
7.     }
8.  
9.     upstream backends_netcup {
10.         least_conn;
11.         server  192.168.8.3:1080   weight=10 max_fails=2 fail_timeout=30;
12.         server  192.168.8.1:1080   backup;
13.     }
14.  
15.     upstream backends_dns {
16.         least_conn;
17.         server 192.168.2.190:53 weight=10 max_fails=2 fail_timeout=30;
18.         server 192.168.8.3:53   backup;
19.     }
20.