diff --git a/docs/debian/sources-stretch.md b/docs/debian/sources-stretch.md
new file mode 100644
index 0000000..41a72c9
--- /dev/null
+++ b/docs/debian/sources-stretch.md
@@ -0,0 +1,37 @@
+# sources.list stretch
+
+## dépot CDN deb
+
+`cat /etc/apt/sources-list`
+```text
+## debian stretch 9
+deb http://deb.debian.org/debian/ stretch
+deb http://deb.debian.org/debian-security stretch/updates main contrib non-free
+deb http://deb.debian.org/debian/ stretch-updates main contrib non-free
+
+# backports, à activer en connaissance de cause
+# deb http://deb.debian.org/debian/ stretch-backports main contrib non-free
+
+# dépots libre only:  main contrib non-free -> main
+## dépots sources non présents, inutiles sauf dev, et ralentissant update
+```
+vérifier qu'il n'y ait pas de dépôts secondaires dans:   
+`ls -l /etc/apt/sources.list.d/`
+
+
+## protocole htpps
+
+```shell
+su
+apt install apt-transport-https
+```
+nouvelles sources:
+```text
+## debian stretch 9
+deb https://deb.debian.org/debian/ stretch
+deb https://deb.debian.org/debian-security stretch/updates main contrib non-free
+deb https://deb.debian.org/debian/ stretch-updates main contrib non-free
+
+# backports, à activer en connaissance de cause
+# deb https://deb.debian.org/debian/ stretch-backports main contrib non-free
+```
diff --git a/mkdocs.yml b/mkdocs.yml
index 88d912d..d44340f 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -20,6 +20,7 @@ pages:
     - grub-rescue boot: debian/grub/boot-grub-rescue.md
     - grub-install chroot: debian/grub/chroot-grub-install.md
     - jessie en stretch: "debian/maj_jessie_stretch.md"
+    - sources-stretch: "debian/sources-stretch.md"
     - stretch support limité: "debian/securite_limitee.md"
     - liens: debian/liens.md
   - "live-build":