RE: Open ports on FC2

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-----Original Message-----
From: fedora-list-bounces@xxxxxxxxxx [mailto:fedora-list-bounces@xxxxxxxxxx]
On Behalf Of Chris Hewitt
Sent: Saturday, July 24, 2004 3:06 PM
To: For users of Fedora Core releases
Subject: Re: Open ports on FC2

On Sat, 2004-07-24 at 19:30, John Dangler wrote:
> I went to the ShieldsUP!!! site and ran the file sharing and common ports
> tests.  According to the results, I allowed ping to reply to their server
> via ICMP echo, and I have port 21 (ftp) and 23 (telnet) open.  How do I:
> 
> (1) block/ignore ICMP echo requests
> (2) Tell inquirers that ports 21 and 23 exist but are closed to
connections

John,

>Unless you need ftp and telnet, I suggest you shut them down:
I don't
>service vsftpd stop
vsftpd isn't running (nor is any other ftp service)

>Telnet is part of the xinetd super-server. Edit /etc/xinetd.d/telnet and
>change the line:
>disable	= no
>to
>disable	= yes


I don't have a 'telnet' file in /etc/xinetd.d

>You can check open ports by doing:
>nmap localhost

nmap localhost reveals:
22/tcp open SSH
25/tcp open smtp
111/tcp open rpcbind
631/tcp open ipp
3306/tcp open mysql
32770/tcp open sometimes-rpc3
32771/tcp open sometimes-rpc5

Nmap run completed -- 1 IP address (1 host up) scanned in 1.433 seconds
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