update wscript

Change-Id: I8fe5b1beb20d80b0e6da8926a1a18204320e9686
diff --git a/systemd/ndncert-ca.service.in b/systemd/ndncert-ca.service.in
index dadcf5a..5ac1a2b 100644
--- a/systemd/ndncert-ca.service.in
+++ b/systemd/ndncert-ca.service.in
@@ -2,9 +2,7 @@
 Description=Certificate Management Identity Management Service for NDN
 
 [Service]
-Environment=HOME=%S/ndncert
-EnvironmentFile=-@SYSCONFDIR@/ndncert
-EnvironmentFile=-@SYSCONFDIR@/default/ndncert
+Environment=HOME=%S/ndncert-ca
 ExecStart=@BINDIR@/ndncert-ca-server
 Restart=on-failure
 RestartPreventExitStatus=2
@@ -12,3 +10,4 @@
 
 [Install]
 WantedBy=multi-user.target
+Alias=ndncert.service
\ No newline at end of file