nmap을 이용한 리눅스에서 열린포트와 사용 중인 포트 확인방법



먼저 nmap를 설치 해준다.

[root@ora10 ~]# yum -y install nmap

Loaded plugins: rhnplugin, security

There was an error communicating with RHN.

RHN support will be disabled.

Error communicating with server. The message was:


Error Message:

        Please run rhn_register as root on this client

Error Class Code: 9

Error Class Info: Invalid System Credentials.

Explanation: 

     An error has occurred while processing your request. If this problem

     persists please enter a bug report at bugzilla.redhat.com.

     If you choose to submit the bug report, please be sure to include

     details of what you were trying to do when this error occurred and

     details on how to reproduce this problem.


Setting up Install Process

Parsing package install arguments

Package 2:nmap-4.11-1.1.i386 installed and not available

Nothing to do

[root@ora10 ~]# 

 



열린 포트 확인

[root@ora10 ~]# nmap localhost

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-05-28 20:03 KST
Interesting ports on ora10 (127.0.0.1):
Not shown: 1676 closed ports
PORT     STATE SERVICE
23/tcp   open  telnet
1521/tcp open  oracle
2002/tcp open  globe
3306/tcp open  mysql






현재 사용 중인 포트 확인
Nmap finished: 1 IP address (1 host up) scanned in 0.085 seconds
[root@ora10 ~]# netstat -na | grep LISTEN
tcp        0      0 0.0.0.0:8034                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:1521                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:23                  0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:6010              0.0.0.0:*                   LISTEN      
tcp        0      0 :::2002                     :::*                        LISTEN      
tcp        0      0 ::1:6010                    :::*                        LISTEN      
unix  2      [ ACC ]     STREAM     LISTENING     5156   /tmp/.font-unix/fs7100
unix  2      [ ACC ]     STREAM     LISTENING     5432   /tmp/.gdm_socket
unix  2      [ ACC ]     STREAM     LISTENING     5461   /tmp/.X11-unix/X0
unix  2      [ ACC ]     STREAM     LISTENING     5681   /var/tmp/.oracle/s#2489.2
unix  2      [ ACC ]     STREAM     LISTENING     5059   /var/lib/mysql/mysql.sock
unix  2      [ ACC ]     STREAM     LISTENING     4852   /var/run/audispd_events
unix  2      [ ACC ]     STREAM     LISTENING     5679   /var/tmp/.oracle/s#2489.1
unix  2      [ ACC ]     STREAM     LISTENING     4928   /var/run/acpid.socket
[root@ora10 ~]# 






이 포스트를 추천해 주시면 더욱 많은 분들에게 보여집니다~!


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