Clean.

ccnode/host/tags.py

@@ -6,7 +6,7 @@ import re
 import os as os_
 import platform as platform_
 from multiprocessing import cpu_count
-from socket import gethostname, gethostbyaddr
+from socket import getfqdn
 
 import psutil
 
@@ -15,9 +15,7 @@ from ccnode.tags import Tag, DynamicTags
 
 def h():
     """Hostname tag."""
-    hn = gethostname()
-
-    return gethostbyaddr(hn)[0] or hn
+    return getfqdn()
 h.ttl = 3600 * 24  # one day