请问tcp 949是什么端口？

iso

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2006-11-23 13:06 CST
Interesting ports on xxx (127.0.0.1):
Not shown: 1670 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
111/tcp  open  rpcbind
443/tcp  open  https
631/tcp  open  ipp
949/tcp  open  unknown
3306/tcp open  mysql
4662/tcp open  edonkey
5900/tcp open  vnc
Device type: general purpose
Running: Linux 2.4.X|2.5.X|2.6.X
OS details: Linux 2.5.25 - 2.6.8 or Gentoo 1.2 Linux 2.4.19 rc1-rc7
Uptime 0.043 days (since Thu Nov 23 12:04:59 2006)

iso

/usr/sbin/rpcinfo -p
   程序 版本 协议   端口
    100000    2   tcp    111  portmapper
    100000    2   udp    111  portmapper
    100024    1   udp    946  status
    100024    1   tcp    949  status
原来是rpc