You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@httpd.apache.org by "Roy T. Fielding" <fi...@liege.ICS.UCI.EDU> on 1996/06/15 02:56:44 UTC

ID on spurious packets after reset

This one is worth reading for those of you with large numbers of
connections to your webserver.  It seems to me that a server which isn't
careful about closing a connection has a higher probability of corrupting
later connections, which would result is some very-hard-to-debug errors.

Something to keep in mind.

.....Roy

------- Forwarded Message

To: IETF-Announce: ;
From: Internet-Drafts@cnri.reston.va.us
Subject: I-D ACTION:draft-heavens-problems-rsts-02.txt
Date: Fri, 14 Jun 96 10:04:46 -0400
Message-ID:  <96...@IETF.CNRI.Reston.VA.US>

A Revised Internet-Draft is available from the on-line Internet-Drafts 
directories.                                                               

       Title     : RSTs Considered Harmful                                 
       Author(s) : I. Heavens
       Filename  : draft-heavens-problems-rsts-02.txt
       Pages     : 25
       Date      : 06/13/1996

This memo argues that the danger of segments from old TCP connections 
occurs for connections terminated by RST segments, as well as those 
terminated by exchange of FIN segments. In addition, TIME-WAIT state alone 
does not provide complete protection.  The likelihood of data corruption is
significant, in that it exceeds the probability of corruption after FIN 
exchange for which TIME-WAIT state was designed.                           

Internet-Drafts are available by anonymous FTP.  Login with the username
"anonymous" and a password of your e-mail address.  After logging in,
type "cd internet-drafts" and then
     "get draft-heavens-problems-rsts-02.txt".
A URL for the Internet-Draft is:
ftp://ds.internic.net/internet-drafts/draft-heavens-problems-rsts-02.txt
 
Internet-Drafts directories are located at:	
	                                                
     o  Africa                                   
        Address:  ftp.is.co.za (196.4.160.8)	
	                                                
     o  Europe                                   
        Address:  nic.nordu.net (192.36.148.17)	
        Address:  ftp.nis.garr.it (193.205.245.10)
	                                                
     o  Pacific Rim                              
        Address:  munnari.oz.au (128.250.1.21)	
	                                                
     o  US East Coast                            
        Address:  ds.internic.net (198.49.45.10)	
	                                                
     o  US West Coast                            
        Address:  ftp.isi.edu (128.9.0.32)  	
	                                                
------- End of Forwarded Message


Re: ID on spurious packets after reset

Posted by Brian Behlendorf <br...@organic.com>.
On Fri, 14 Jun 1996, Roy T. Fielding wrote:
>        Title     : RSTs Considered Harmful                                 
>        Author(s) : I. Heavens
>        Filename  : draft-heavens-problems-rsts-02.txt

Further proof of our conspiracy to drive Rob crazy!

	Brian

--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--
brian@organic.com  www.apache.org  hyperreal.com  http://www.organic.com/JOBS