--- postgresql-11.1/src/backend/utils/misc/postgresql.conf.sample	2018-11-06 23:56:26.000000000 +0000
+++ postgresql-11.1/src/backend/utils/misc/postgresql.conf.sample	2018-12-03 13:15:44.113403000 +0000
@@ -361,7 +361,7 @@
 
 # - Where to Log -
 
-#log_destination = 'stderr'		# Valid values are combinations of
+log_destination = 'syslog'		# Valid values are combinations of
 					# stderr, csvlog, syslog, and eventlog,
 					# depending on platform.  csvlog
 					# requires logging_collector to be on.
@@ -394,9 +394,9 @@
 					# 0 disables.
 
 # These are relevant when logging to syslog:
-#syslog_facility = 'LOCAL0'
-#syslog_ident = 'postgres'
-#syslog_sequence_numbers = on
+syslog_facility = 'LOCAL0'
+syslog_ident = 'postgresql-11'
+syslog_sequence_numbers = on
 #syslog_split_messages = on
 
 # This is only relevant when logging to eventlog (win32):
@@ -457,12 +457,12 @@
 #debug_print_plan = off
 #debug_pretty_print = on
 #log_checkpoints = off
-#log_connections = off
-#log_disconnections = off
+log_connections = on
+log_disconnections = on
 #log_duration = off
 #log_error_verbosity = default		# terse, default, or verbose messages
 #log_hostname = off
-#log_line_prefix = '%m [%p] '		# special values:
+log_line_prefix = '%m [%p] %q%h/%a %u/%d '	# special values:
 					#   %a = application name
 					#   %u = user name
 					#   %d = database name