Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

Looking at our Apache log I see normal requests like:

174.133.xxx.xxx - - [20/May/2010:17:36:44 -0700] "GET /index.html HTTP/1.1" 200 2004

but every so often i get a cluster of these w/out an IP address.

::1 - - [20/May/2010:18:47:21 -0700] "OPTIONS * HTTP/1.0" 200 -
::1 - - [20/May/2010:18:47:22 -0700] "OPTIONS * HTTP/1.0" 200 -
::1 - - [20/May/2010:18:47:23 -0700] "OPTIONS * HTTP/1.0" 200 -

what do they mean and curious what causes them?

share|improve this question
add comment

2 Answers

up vote 3 down vote accepted

These are normal. ::1 is the IPv6 address for localhost; the OPTIONS requests are part of how Apache manages its child threads.

share|improve this answer
add comment

That's IPv6 localhost - something on your server is making requests to "localhost" and it's resolving to ::1.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.