Thanks Cecil, Patrick, for the feed back,
I can safley close most of these.
Thanks again.
madmac
----- Original Message -----
From: Cecil Yother, Jr.
To: qmailtoaster-list@qmailtoaster.com
Sent: Tuesday, May 31, 2011 8:34 AM
Subject: Re: [qmailtoaster] firewall rules
IIRC you can close 20 and 21 (FTP), 23 (Telnet), 43 (whois), 123 (NTP). This
is of course unless you use any of these services. FTP can be moved to a non
standard port and will decrease attacks by 99%. 953, 993, and 995 are for
secure mail transport.
On 05/31/2011 09:21 AM, sysad...@tricubemedia.com wrote:
Hi Guys, trying to tighten up the qmail server more:
Can I close any of these ports: not sure waht they may be needed for:
tcp dpt:20
tcp dpt:21
tcp dpt:23
tcp dpt:43
udp dpt:123
tcp dpt:953
udp dpt:953
tcp dpt:993
tcp dpt:995
Thanks all
madmac
--
Cecil Yother, Jr. "cj"
cj's
2318 Clement Ave
Alameda, CA 94501
tel 510.865.2787 | http://yother.com
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