diff -ur v4/sock_ut.py v5/sock_ut.py
--- v4/sock_ut.py	2021-06-28 19:46:14.000000000 +0900
+++ v5/sock_ut.py	2021-06-30 04:15:08.000000000 +0900
@@ -62,6 +62,7 @@
 
 # srv=name
 # port=xxx,srv=name,id=xxx
+# kill=name
 # kill_base_srv
 # name
 
@@ -70,8 +71,11 @@
 		return {}
 	return dict( map( lambda t: t.split( '=' ), s.split( ',' ) ) )
 
-def is_srv_dic( d ):
-	return len( d ) == 1 and 'srv' in d
+is_key_dic = lambda d, k: len( d ) == 1 and k in d
+
+is_srv_dic = lambda d: is_key_dic( d, 'srv' )
+
+is_kill_dic = lambda d: is_key_dic( d, 'kill' )
 
 def is_accept_dic( d ):
 	ks = [ 'port', 'srv', 'id' ]
@@ -91,6 +95,8 @@
 	dbg.out( 'srv {} start'.format( name ) )
 	while True:
 		s = q.get()
+		if s == 'kill':
+			break
 		if not send_str( sc, s ):
 			break
 
@@ -141,6 +147,12 @@
 	elif is_accept_dic( d ):
 		base_th_accept( sc, s )
 
+	elif is_kill_dic( d ):
+		name = d.get( 'kill' )
+		if name in srvs:
+			q = srvs.get( name )
+			q.put( 'kill' )
+
 	elif s == 'kill_base_srv':
 		ev_quit.set()
 		send_str( sc, 'next' )
@@ -267,6 +279,15 @@
 		return None
 	return cs
 
+def kill_srv( port, name ):
+	cs = port_conn( port )
+	if not cs:
+		return
+	s = 'kill=' + name
+	#dbg.out( s )
+	send_str( cs, s )
+	cs.close()
+
 def kill_base_srv( port ):
 	cs = port_conn( port )
 	if not cs:
@@ -289,6 +310,7 @@
 		'port cli upper word word word ...',
 		'port cli eval word word word ...',
 		'port kill_base',
+		'port kill srv_name ( srv_name is upper, eval or ... )'
 	]
 	dbg.help_exit( '\n'.join( lst ) )
 
@@ -333,6 +355,10 @@
 					break
 				dbg.out( '{} --> {}'.format( w, r ) )
 			sc.close()
+	elif cmd == 'kill':
+		name = pop()
+		kill_srv( port, name )
+
 	elif cmd == 'kill_base':
 		kill_base_srv( port )