CentOS 6, Nmap을 이용하여 서비스 포트 확인하기

Nmap 설치

$ cd ~
$ sudo wget https://nmap.org/dist/nmap-7.40-1.x86_64.rpm
$ sudo yum install nmap-7.40-1.x86_64.rpm

Nmap 포트 확인

$ nmap localhost

Starting Nmap 7.40 ( https://nmap.org ) at 2017-05-11 22:11 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00028s latency).
Other addresses for localhost (not scanned): ::1
Not shown: 996 closed ports
PORT    STATE SERVICE
22/tcp  open  ssh
25/tcp  open  smtp
80/tcp  open  http
111/tcp open  rpcbind

Nmap done: 1 IP address (1 host up) scanned in 0.12 seconds