I got several access log from a private ip address. It’s 172.16... (masked)
Some nginx logs like this:
172.16.. - - [07/Feb/2021:18:32:02 +0900] “GET / HTTP/1.1” 200 14712 “https://www.google.com/” 0.000 - . “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.3
6 (KHTML, like Gecko) Chrome/88.0.4324.146 Safari/537.36” “172.16..” “”
The requests seem all rights except the ip addr from 172.16.
It seems that it was a live user, accessed the homepage and view some pages normally.
I’m using a real_ip_header module restrictly:
real_ip_header “CF-Connecting-IP”;
set_real_ip_from 127.0.0.0/8 ;
set_real_ip_from ::1/128 ;
set_real_ip_from 173.245.48.0/20;
set_real_ip_from 103.21.244.0/22;
set_real_ip_from 103.22.200.0/22;
set_real_ip_from 103.31.4.0/22;
set_real_ip_from 141.101.64.0/18;
set_real_ip_from 108.162.192.0/18;
set_real_ip_from 190.93.240.0/20;
set_real_ip_from 188.114.96.0/20;
set_real_ip_from 197.234.240.0/22;
set_real_ip_from 198.41.128.0/17;
set_real_ip_from 162.158.0.0/15;
set_real_ip_from 104.16.0.0/12;
set_real_ip_from 172.64.0.0/13;
set_real_ip_from 131.0.72.0/22;
set_real_ip_from 2400:cb00::/32 ;
set_real_ip_from 2606:4700::/32 ;
set_real_ip_from 2803:f800::/32 ;
set_real_ip_from 2405:b500::/32 ;
set_real_ip_from 2405:8100::/32 ;
set_real_ip_from 2a06:98c0::/29 ;
set_real_ip_from 2c0f:f248::/32 ;
#My networks were removed; I don’t think they’re from my network and I does not use 172.16
I checked all logs not deleted yet, no other similar requests before Feb 07 were found.