X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=1intro.tex;h=1faf5c825e8b2f4277dc9efd7ddb1ac5e962dcde;hb=911042e41348452121ee1069fc54d392a12463fc;hp=7da3120d6e08bad62084485335daf6cb38dc2044;hpb=555fdabeab56bb331d9155ace4f7c58631963898;p=tt2015.git

diff --git a/1intro.tex b/1intro.tex
index 7da3120..1faf5c8 100644
--- a/1intro.tex
+++ b/1intro.tex
@@ -18,7 +18,9 @@ Java\footnote{\url{http://www.java.com}} TCP driven echo server that executed
 on a virtualized Ubuntu system\footnote{\url{http://www.ubuntu.com}} running on
 the Linux kernel\footnote{\url{http://www.kernel.org}} version $3.13$. To test
 the error behaviour custom iptables output policies have to be
-set~\ref{listing:iptables}.
+set Listing~\ref{listing:iptables}. This is needen because the OS by default 
+closes all connections from unknown sources and the manually created TCP 
+connections used in testing the implementation are unknown to the OS.
 
 \begin{lstlisting}[label={listing:iptables},caption={settings iptables}]
 Chain OUTPUT (policy ACCEPT)