Use SIGQUIT instead of SIGINT

refs: #3870

Change-Id: I915d9422d56a441b351bb9ab38a0c8377e1da34f

bin/minindn

@@ -479,7 +479,7 @@ if __name__ == '__main__':
     hosts_conf = []
     links_conf = []
 
-    signal.signal(signal.SIGINT, signal_handler)
+    signal.signal(signal.SIGQUIT, signal_handler)
 
     options = parse_args()
 

docs/GETTING-STARTED.md

@@ -44,6 +44,10 @@ To exit Mini-NDN, type `quit` in the CLI:
 
     mini-ndn> quit
 
+Another option to quit Mini-NDN is sending a SIGQUIT (ctrl+\). SIGINT (ctrl+c)
+is reserved for the purpose of stopping applications initiated on the minindn command
+line.
+
 For a more in depth explanation of the CLI, please see the
 [Mininet Walkthrough](http://mininet.org/walkthrough/).
 

ndn/nfd.py

@@ -59,7 +59,7 @@ class Nfd(NdnApplication):
         node.cmd("export HOME=%s" % node.homeFolder)
 
     def start(self):
-        NdnApplication.start(self, "nfd --config %s >> %s 2>&1 &" % (self.confFile, self.logFile))
+        NdnApplication.start(self, "setsid nfd --config %s >> %s 2>&1 &" % (self.confFile, self.logFile))
         time.sleep(2)
 
     def setStrategy(self, name, strategy):