On Dec 19, 2005, at 5:46 PM, Michael Sullivan wrote:
On Mon, 2005-12-19 at 17:23 -0600, John Jolet wrote:
On Dec 19, 2005, at 4:31 PM, kashani wrote:
Michael Sullivan wrote:
I've gotten my named server working like I want it to, except that
computers outside my network can't see it. I've opened up port 53
on my
router so that extra-network hosts could use it, but they still
can't.
I'm not running a firewall on my server box as far as I know. How
can I
find what's causing this?
if you are going to open up ports on your router, I would STRONGLY
suggest you go ahead and set up some iptables rules on your server.
Just 16+ years of sysadmin paranoia talking....
What ever you did in the last 5 minutes seems to have fixed it as
an nmap against your box showed no DNS ports open originally and
now it does.
[EMAIL PROTECTED] ~ $ dig @espersunited.com www.espersunited.com
;; QUESTION SECTION:
;www.espersunited.com. IN A
;; ANSWER SECTION:
www.espersunited.com. 10800 IN CNAME
bullet.espersunited.com.
bullet.espersunited.com. 10800 IN A 192.168.1.2
kashani
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The router provides my firewall. I already have ports open for sshd,
www, smtp, ftp, pop3, and imap. Why would I need another firewall on
the PC itself?
a little thing we like to call defense in depth. you firewall at the
perimeter, and you firewall at the hosts, or between the layers.
this prevents a compromise of an internal host from cascading.
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