qmail問題

Question

[root@localhost sysconfig]# nmap 192.168.0.19

Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
Interesting ports on  (192.168.0.19):
(The 1592 ports scanned but not shown below are in state: closed)
Port       State       Service
21/tcp     open        ftp
22/tcp     open        ssh
23/tcp     open        telnet
25/tcp     open        smtp
80/tcp     open        http
110/tcp    open        pop-3
111/tcp    open        sunrpc
443/tcp    open        https
3306/tcp   open        mysql

Nmap run completed -- 1 IP address (1 host up) scanned in 3 seconds
[root@localhost sysconfig]# telnet 192.168.0.19 25
Trying 192.168.0.19...
Connected to 192.168.0.19 (192.168.0.19).
Escape character is '^]'.
Connection closed by foreign host.
[root@localhost sysconfig]#

沒有開防火牆,這是什麼原因呀
qmail參考(redhat9.0下igenus的安装过程)
http://bbs.igenus.org/phpBB2/viewtopic.php?t=325&sid=75b7f61ce87c2a59dc4c6e861122c118

Answer 1

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