+
+# Quoting unix(7) on Linux:
+# Linux also supports an abstract namespace which is independent of the file
+# system. [...] If sun_path starts with a null byte ('\0'), then it refers to
+# the abstract namespace maintained by the Unix protocol module. The socket's
+# address in this namespace is given by the rest of the bytes in sun_path.
+#
+# By using this Linux-specific way we don't have to care about removing the
+# socket file when quitting or starting (after an unclean shutdown).
+#
+# Sample output for "netstat -nlp":
+# unix 2 [ ACC ] STREAM LISTENING 247919 1234/python @ganeti-master
+MASTER_SOCKET = "\0ganeti-master"
+
+# PID files
+MASTERD_PID = "ganeti-masterd"
+NODED_PID = "ganeti-noded"
+RAPI_PID = "ganeti-rapi"