Thanks very much! Peter. I updated my RH7.2 with up2date -- including Sendmail. But it closed my POP3 port.
But in my firewall setting (iptables -1.2.5-3), POP3 port 110 is opened. How can I re-open my POP3 port? Regards, Yujie -----Original Message----- From: Peter Kiem [mailto:[EMAIL PROTECTED] Sent: Wednesday, 12 March 2003 10:36 AM To: Red Hat Users List Cc: Yujie Liang Subject: Re: port scan Hi Yujie, > How can I detect which ports are opened on my firewall? I remember there > is a command with "snmp" can do the job. The best idea is to scan it with a program called "nmap". -- Regards, +-----------------------------+---------------------------------+ | Peter Kiem .^. | E-Mail : <[EMAIL PROTECTED]> | | Zordah IT /V\ | Mobile : +61 0414 724 766 | | IT Consultancy & /( )\ | WWW : www.zordah.net | | Internet Hosting ^^-^^ | ICQ : "Zordah" 866661 | +-----------------------------+---------------------------------+ My current spamtrap address is [EMAIL PROTECTED] -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED] https://listman.redhat.com/mailman/listinfo/redhat-list
