Our server just went nuts again. And again "::" shows up in the logs right around the moment it started chugging 100% CPU. Help!
________________________________ From: Apache Issues <apacheiss...@yahoo.com> To: users@httpd.apache.org Sent: Wed, September 1, 2010 11:36:02 AM Subject: Re: [us...@httpd] What IP address is this log entry coming from? (Is "::" a valid IP address?) Oooookay... That makes it rather difficult to track down a solution. Any theory as to why this occurs/how this can occur would be quite helpful. ________________________________ From: Tom Evans <tevans...@googlemail.com> To: users@httpd.apache.org Sent: Wed, September 1, 2010 8:12:23 AM Subject: Re: [us...@httpd] What IP address is this log entry coming from? (Is "::" a valid IP address?) On Tue, Aug 31, 2010 at 12:00 AM, Apache Issues <apacheiss...@yahoo.com> wrote: > I'm using: > > CustomLog "/var/log/apache2/access_log" "%a %l %u %t \"%r\" %>s %b > \"%{Referer}i\"" > > And I occasionally see this right around the time the CPU starts running at > 100%: > > :: - - [27/Aug/2010:12:28:01 -0700] "GET /favicon.ico HTTP/1.1" 200 - "-" > > %a is supposed to be an IP address, so what IP address is "::"? I'm only > somewhat familiar with IPv6 but I've never seen "::" before. http://en.wikipedia.org/wiki/IPv6_address#Notation One or any number of consecutive groups of zero value may be replaced with two colons. [ ... ] The localhost (loopback) address, 0:0:0:0:0:0:0:1, and the IPv6 unspecified address, 0:0:0:0:0:0:0:0, are reduced to ::1 and ::, respectively. Cheers Tom