software/!RELEASES/ircservices/achurch.org/services/lists/ircservices/1999/000196.html

   1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
   2 <HTML>
   3  <HEAD>
   4    <TITLE> [IRCServices] what do they think ?
   5    </TITLE>
   6    <LINK REL="Index" HREF="index.html" >
   7    <LINK REL="made" HREF="mailto:ircservices%40ircservices.za.net?Subject=%5BIRCServices%5D%20what%20do%20they%20think%20%3F&In-Reply-To=">
   8    <META NAME="robots" CONTENT="index,nofollow">
   9    <META http-equiv="Content-Type" content="text/html; charset=us-ascii">
  10    <LINK REL="Previous"  HREF="000202.html">
  11    <LINK REL="Next"  HREF="000197.html">
  12  </HEAD>
  13  <BODY BGCOLOR="#ffffff">
  14    <H1>[IRCServices] what do they think ?</H1>
  15     <B>Andrew Church</B>
  16     <A HREF="mailto:ircservices%40ircservices.za.net?Subject=%5BIRCServices%5D%20what%20do%20they%20think%20%3F&In-Reply-To="
  17        TITLE="[IRCServices] what do they think ?">achurch at dragonfire.net
  18        </A><BR>
  19     <I>Sat Oct  9 10:41:48 PDT 1999</I>
  20     <P><UL>
  21         <LI>Previous message: <A HREF="000202.html">[IRCServices] what do they think ?
  22 </A></li>
  23         <LI>Next message: <A HREF="000197.html">[IRCServices] akick enforce bug
  24 </A></li>
  25          <LI> <B>Messages sorted by:</B>
  26               <a href="date.html#196">[ date ]</a>
  27               <a href="thread.html#196">[ thread ]</a>
  28               <a href="subject.html#196">[ subject ]</a>
  29               <a href="author.html#196">[ author ]</a>
  30          </LI>
  31        </UL>
  32     <HR>
  33 <!--beginarticle-->
  34 <PRE>&gt;<i>Why not use popen() and open a pipe to sendmail, pipe in the information
  35 </I>&gt;<i>and then close the pipe?  That way sendmail spawns off a new process,
  36 </I>&gt;<i>without requiring the addition of timeout handling etc.
  37 </I>
  38      This requires the overhead of spawning a new process for every
  39 request, which can lead to a denial of resources attack on the whole
  40 system if someone really tries, as opposed to a DoS on Services alone.
  41 (You could get around this by imposing a process limit.)  It also relies
  42 on the fact that the machine running Services has a sendmail that works
  43 the way you expect--this is not a given, believe it or not.
  44
  45 &gt;<i>For the record, it's a proven concept that the above method will work -
  46 </I>&gt;<i>StarChat (around 1000 concurrent connections at night).
  47 </I>
  48      &quot;Works&quot; and &quot;works under all conditions&quot; aren't quite the same thing.
  49 If your code works for you, fine; but for a program designed to work
  50 across many different environments such as Services, &quot;works&quot; just isn't
  51 enough.
  52
  53   --Andrew Church
  54     <A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices">achurch at dragonfire.net</A>
  55     <A HREF="http://achurch.dragonfire.net/">http://achurch.dragonfire.net/</A>
  56 ---------------------------------------------------------------
  57 To unsubscribe, send email to <A HREF="http://www.ircservices.za.net/mailman/listinfo/ircservices">majordomo at ender.shadowfire.org</A>
  58 with &quot;unsubscribe ircservices&quot; in the body, without the quotes.
  59
  60 </PRE>
  61
  62 <!--endarticle-->
  63     <HR>
  64     <P><UL>
  65         <!--threads-->
  66         <LI>Previous message: <A HREF="000202.html">[IRCServices] what do they think ?
  67 </A></li>
  68         <LI>Next message: <A HREF="000197.html">[IRCServices] akick enforce bug
  69 </A></li>
  70          <LI> <B>Messages sorted by:</B>
  71               <a href="date.html#196">[ date ]</a>
  72               <a href="thread.html#196">[ thread ]</a>
  73               <a href="subject.html#196">[ subject ]</a>
  74               <a href="author.html#196">[ author ]</a>
  75          </LI>
  76        </UL>
  77
  78 </body></html>