--- postgresql-9.5.15/src/backend/utils/misc/postgresql.conf.sample	2018-11-05 21:49:29.000000000 +0000
+++ postgresql-9.5.15/src/backend/utils/misc/postgresql.conf.sample	2018-12-03 13:32:36.483403000 +0000
@@ -315,7 +315,7 @@
 
 # - 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.
@@ -348,8 +348,8 @@
 					# 0 disables.
 
 # These are relevant when logging to syslog:
-#syslog_facility = 'LOCAL0'
-#syslog_ident = 'postgres'
+syslog_facility = 'LOCAL0'
+syslog_ident = 'postgres-9.5'
 
 # This is only relevant when logging to eventlog (win32):
 # (change requires restart)
@@ -409,12 +409,12 @@
 #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 = ''			# special values:
+log_line_prefix = '%m [%p] %q%h/%a %u/%d '	# special values:
 					#   %a = application name
 					#   %u = user name
 					#   %d = database name