diff --git a/mamonsu/plugins/pgsql/_connection.py b/mamonsu/plugins/pgsql/_connection.py
index 3461b0b4..211d64e3 100644
--- a/mamonsu/plugins/pgsql/_connection.py
+++ b/mamonsu/plugins/pgsql/_connection.py
@@ -49,10 +49,14 @@ def _check_connect(self):
         if not self.query_completed_succ:
             self.log.debug('[db: {0}] Connecting...'.format(self.database))
             self._close()
+            host, unix_sock = os.environ.get('PGHOST'), None
+            if host.startswith('/'):
+                unix_sock, host = host, None
             self.conn = connect(
                 user=os.environ.get('PGUSER'),
                 password=os.environ.get('PGPASSWORD'),
-                host=os.environ.get('PGHOST'),
+                unix_sock=unix_sock,
+                host=host,
                 port=int(os.environ.get('PGPORT') or 5432),
                 database=self.database
             )
diff --git a/mamonsu/plugins/pgsql/health.py b/mamonsu/plugins/pgsql/health.py
index af7c0e47..3c8a00b4 100644
--- a/mamonsu/plugins/pgsql/health.py
+++ b/mamonsu/plugins/pgsql/health.py
@@ -15,6 +15,8 @@ def __init__(self, config):
         # алертим, если cache hit меньше чем %
         self.TriggerCacheHitLessThen = self.config.fetch(
             'health', 'cache', int)
+        # счетчик, для сообщения в лог
+        self.counter = 0
 
     def run(self, zbx):
 
@@ -31,6 +33,11 @@ def run(self, zbx):
             from pg_stat_database')
         zbx.send('pgsql.cache[hit]', int(result[0][0]))
 
+        self.counter += 1
+        if self.counter > 9:
+            self.log.info('=== Keep alive ===')
+            self.counter = 0
+
     def items(self, template):
         result = template.item({
             'name': 'PostgreSQL: ping',