Hello,
I have just 1 backend server being reverse-proxied through nginx. The
access log lists this one request for which the $upstream_addr has the
same ip:port twice. Is this a bug ?
::ffff:10.255.255.248:51947 - - [18/Feb/2015:19:52:43 -0600] “GET /
HTTP/1.1” 302 454 “-” “Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10;
rv:35.0) Gecko/20100101 Firefox/35.0” "a.b.c.d:e, a.b.c.d:e "
This is how the the log_format is defined
log_format upstream '$remote_addr:$remote_port - $remote_user
[$time_local] ’
'"$request" $status $bytes_sent ’
‘"$http_referer" “$http_user_agent” “$upstream_addr”’;
On Wed, Feb 18, 2015 at 09:03:47PM -0600, Kunal P. wrote:
Hello,
I have just 1 backend server being reverse-proxied through nginx. The access log
lists this one request for which the $upstream_addr has the same ip:port twice. Is
this a bug ?
::ffff:10.255.255.248:51947 - - [18/Feb/2015:19:52:43 -0600] “GET / HTTP/1.1”
302 454 “-” “Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:35.0) Gecko/20100101
Firefox/35.0” "a.b.c.d:e, a.b.c.d:e "
This is how the the log_format is defined
log_format upstream '$remote_addr:$remote_port - $remote_user [$time_local] ’
'“$request” $status $bytes_sent ’
‘“$http_referer” “$http_user_agent” “$upstream_addr”’;
This can legitimately happen, e.g., if you configure an upstream
with multiple servers with the same IP address.
Can you please tell me other such cases where this could happen ? Can’t
think of any in my scenario atleast.
Thanks
-Kunal
----- Original Message -----
From: “Maxim D.” [email protected]
To: [email protected]
Sent: Thursday, February 19, 2015 9:23:16 AM
Subject: Re: $upstream_addr containing the same ip twice
Hello!
On Thu, Feb 19, 2015 at 08:49:33AM -0800, Kunal P. wrote:
I have just one server configured with a single Ip address but I still see
this.
The example case mentioned isn’t the only case when this can
happen legitimately.