challange: update images

challenge.yml

@@ -1,10 +1,15 @@
 init:
-  - nemunaire/challenge:f1ec8b779c0d1bd15e68f7fbdddc96dbd213ce81
+  - nemunaire/challenge:059861e6aa6b484602ab9298d34dc9011c5ab061
 
 files:
   - path: etc/motd
     contents: |
-      Welcome to AdLin!
+      Welcome to AdLin course!
+
+      You'll find your instructions in the manual.
+
+      Good luck!
+
     mode: "0644"
   - path: etc/ssmtp/ssmtp.conf
     contents: |
@@ -50,6 +55,7 @@ files:
       news:x:9:13:news:/var/spool/news:/bin/false
       uucp:x:10:14:uucp:/var/spool/uucp:/bin/false
       operator:x:11:0:operator:/root:/bin/ash
+      ntp:x:123:123:NTP:/var/empty:/sbin/nologin
     mode: "0644"
   - path: etc/shadow
     contents: |
@@ -64,7 +70,17 @@ files:
       news:!:0::::::
       uucp:!:0::::::
       operator:!:0::::::
+      ntp:!:0::::::
     mode: "0640"
+  - path: etc/ntpd.conf
+    contents: |
+      # $OpenBSD: ntpd.conf,v 1.14 2015/07/15 20:28:37 ajacoutot Exp $
+      #
+      # See ntpd.conf(5) and /etc/examples/ntpd.conf
+
+      servers pool.ntp.org
+      sensor *
+    mode: "0644"
   - path: init
     source: pkg/challenge/init
     mode: "0755"