RE: [logs] HEAD requests

From: sween (sweenat_private)
Date: Wed Oct 17 2001 - 16:17:12 PDT

  • Next message: Russell Fulton: "Re: [logs] log review policies"

    I typically being from the old school would do a:
    
    $ lynx -head -nolist -dump http://localhost
    HTTP/1.1 200 OK
    Date: Wed, 17 Oct 2001 23:16:02 GMT
    Server: Apache/1.3.14 (Unix) mod_lisp/0.92
    Connection: close
    Content-Type: text/html
    
    I think this may be the technique netcraft and some bots use.
    
    
    On Wed, 17 Oct 2001, Ring, John C wrote:
    
    > This is probably a little off-topic, but in this instance what you want is
    > specifics on the HTTP protocol.  All the gory details can be found at
    > ftp://ftp.isi.edu/in-notes/rfc2616.txt, section 9.4.  But in brief, a "head"
    > request is normal in that a browser or caching proxy can use it to see if
    > the document on your server is more recent then the locally cached version
    > without downloading the entire document.
    > 
    > Brief example of a "head":
    > 
    > $ telnet members.home.com 80
    > HEAD /jcring1/ HTTP/1.1
    > Host: members.home.net
    > 
    > HTTP/1.1 200 OK
    > Date: Wed, 17 Oct 2001 20:25:04 GMT
    > Server: Apache/1.3.11 (Unix)
    > Last-Modified: Wed, 11 Apr 2001 19:26:01 GMT
    > ETag: "4bba94-5d9-3ad4afc9"
    > Accept-Ranges: bytes
    > Content-Length: 1497
    > Content-Type: text/html
    > 
    > Which in this case shows us the Last-Modified time of the file, alone with
    > some additional information.
    > 
    > --------------------------
    > John C. Ring, Jr.
    > jcringat_private
    > Web and Network Technologies Specialist
    > Union Switch & Signal Inc.
    > 
    > -----Original Message-----
    > From: Jeanne Heicher [mailto:nppublibat_private]
    > Sent: Wednesday, October 17, 2001 3:16 PM
    > To: loganalysisat_private
    > Subject: [logs] HEAD requests
    > 
    > 
    > Hi,
    > I have been lurking on this list for a while, and am trying patiently
    > to get my feet on the ground. Can anyone point me to a site or
    > reference book which covers the very basics on log files and their
    > maintenance? In specific, I am looking for the meaning of a HEAD
    > request in a log file for IIS (as opposed to a GET request). 
    > 	TIA,
    > 	Jeanne Heicher
    > xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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    --
    
     ---  -sween                               
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