<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello,</div><div>I have just 1 backend server being reverse-proxied through nginx. The access log lists this one request for which the $upstream_addr has the same ip:port twice. Is this a bug ?</div><div><br data-mce-bogus="1"></div><div>::ffff:10.255.255.248:51947 - - [18/Feb/2015:19:52:43 -0600] "GET / HTTP/1.1" 302 454 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:35.0) Gecko/20100101 Firefox/35.0" <strong>"a.b.c.d:e, <strong style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;" data-mce-style="color: #000000; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;">a.b.c.d:e</strong>"</strong></div><div><strong><br data-mce-bogus="1"></strong></div><div>This is how the the log_format is defined</div><div>log_format upstream '$remote_addr:$remote_port - $remote_user [$time_local] '<br> '"$request" $status $bytes_sent '<br> '"$http_referer" "$http_user_agent" "$upstream_addr"';</div><div><strong><br data-mce-bogus="1"></strong></div><div>Thanks</div><div>-Kunal</div></div></body></html>