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Old 03-09-2009, 07:46 AM
josep
 
Default dnsmasq-opendns-iptables

Debian Lenny, fresh install
I uncomment these lines in: /etc/dhcp3/dhclient.conf

send host-name "mypc"
send dhcp-client-identifier "foo"

I install local DNS cache [with OpenDNS]


apt-get install dnsmasq
echo "prepend domain-name-servers 127.0.0.1,208.67.222.222,208.67.220.220;" >> /etc/dhcp3/dhclient.conf
sed -i s/'#listen-address='/'listen-address=127.0.0.1'/g /etc/dnsmasq.conf




/etc/init.d/dnsmasq restart
/etc/init.d/networking restart


four question's :S
------------------------------------------------
1 - After this, OpenDNS is working, I mean, if I type "google.comsaldkfjlskdj" in the webbrowser, it pop's out an opendns page. Ok [is it Ok?].

------------------------------------------------

2 - I "dig google.com", it say's "SERVER: 127.0.0.1#53(127.0.0.1)", Ok [is it Ok?].

But the most important question is:

------------------------------------------------
3 - If I go to another computer [same subnet], and type: "ping mypc", it say's: "ping: unknown host: mypc" - after waiting for a while, rebooting, it still say's the same When I ping it with IP, it works, but not with hostname



Could someone help me with this three questions?

ps.: I use iptables, but the problem is the same, when I iptables -P INPUT ACCEPT; iptables -P OUTPUT ACCEPT; iptables -P FORWARD ACCEPT; iptables -F; iptables -X



My ....iptables script....[not sure, it's 100% :S - just a regular homepc, with a router]
http://pastebin.com/f2edbc500

ps2.: I tried this doc, but I still can't "ping mypc" from another pc

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4 - With this iptables script, I can only download torrents when I "iptables -P OUTPUT ACCEPT", so I don't know that can I uplodad using APT-P2P?


I tried adding the lines to the script, but torrent still doesn't work:
$IPTABLES -A INPUT -p tcp --dport 6881 -j ACCEPT
$IPTABLES -A INPUT -p udp --dport 6881 -j ACCEPT

------------------------------------------------

ps3.: The netfilter mailing list is "offline" - I can't reach it sorry for posting my iptables script here, but no'one can check it in my environment or say it it has a error
ps4.: In my "/etc/hosts" file, there is a line with "127.0.0.1 mypc"


Thank you for you're patience reading this! :S
Regards & Thank you!
 

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