diff --git a/src/sockets.tex b/src/sockets.tex
index 2cb051e..e2ac6e7 100644
--- a/src/sockets.tex
+++ b/src/sockets.tex
@@ -1028,7 +1028,7 @@ \section{Examples of protocols}
   via anonymous \textsc{ftp} on numerous sites. In France:
   \href{ftp://ftp.inria.fr}{\texttt{ftp.inria.fr}}, in the directory
   \href{ftp://ftp.inria.fr/pub/rfc/}{\texttt{rfc}}. The reference site
-  is \url{http://www.faqs.org/rfcs/}. }
+  is \url{https://ietf.org/standards/rfcs/}. }
 
 
 \subsection*{\quotes{Binary} protocols}