nmap 스캔시 아파치 로그가 안남아요.

제 컴퓨터에 APM을 설치하고 nmap로 스캔 해봤어요.

localhost:/# nmap localhost 
Starting Nmap 4.62 ( http://nmap.org ) at 2009-07-04 11:02 KST 
Warning: Hostname localhost resolves to 2 IPs. Using 127.0.0.1. 
Interesting ports on localhost (127.0.0.1): Not shown: 1711 closed 
ports PORT STATE SERVICE 
25/tcp open smtp 
80/tcp open http 
111/tcp open rpcbind 
631/tcp open ipp 
Nmap done: 1 IP address (1 host up) scanned in 0.114 seconds

그리고 /usr/local/apache/logs에 가서 access_log파일을 열어봤어요.

127.0.0.1 - - [04/Jul/2009:10:23:00 +0900] "GET / HTTP/1.1" 200 44 
127.0.0.1 - - [04/Jul/2009:10:23:42 +0900] "GET /test.php HTTP/1.1" 200 17 
127.0.0.1 - - [04/Jul/2009:10:23:53 +0900] "GET /test.php HTTP/1.1" 200 18 
127.0.0.1 - - [04/Jul/2009:10:23:54 +0900] "GET /test.php HTTP/1.1" 304 - 
127.0.0.1 - - [04/Jul/2009:10:35:43 +0900] "GET /test.php HTTP/1.1" 200 50304 
127.0.0.1 - - [04/Jul/2009:10:35:43 +0900] "GET /test.php?=PHPE9568F34-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2524 
127.0.0.1 - - [04/Jul/2009:10:35:43 +0900] "GET /test.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2146 
127.0.0.1 - - [04/Jul/2009:10:37:06 +0900] "GET /test.php HTTP/1.1" 200 49687 
127.0.0.1 - - [04/Jul/2009:10:37:06 +0900] "GET /test.php?=PHPE9568F34-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2524 
127.0.0.1 - - [04/Jul/2009:10:37:06 +0900] "GET /test.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2146 
127.0.0.1 - - [04/Jul/2009:10:37:56 +0900] "\x16\x03\x01" 200 44

그런데, 10번도 넘게 nmap로 스캔하는데도 로그 기록이 업데이트가 안되네요.
왜 로그 기록이 남지 않을까요?