Q: Im tyring to setup my linux box to be a firewall. At the moment Im trying to get RR working. From what Ive read, supposed to be really simple. Just turn on DHCP for the network card and connect it to the cable modem. Well thats not working for me: (. Can anyone offer any help? Im not with my nic 3comm RR. It is in my Windows machine until I put the Linux setup and masquerading.
thanks
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Re:dhcpcd eth# starts an DHCP (dynamic host control protocol) for eth#. this will work with roadrunner.
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Re:guy,
one thing you will have to do when you switch your modem from the windows box to the linux box is unplug it.
I recomend unpluging, then switch boxes, plug back in, and boot. I spent about a week trying to get DHCP to work on RH7, and that was my problem, it had absolutely nothing to do with linux.
this website helped me a ton: linuxdocs.org (http://www.linuxdocs.org)
specifically check out ipmasq how to (http://linuxdocs.org/HOWTOs/IP-Masquerade-HOWTO.html)
good luck.
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Re:Well I dont have a static ip address. So, how do I go about setting it up for a dynamic ip?
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Re:im a little less scared to leave my linux box online all the time then guy is. if you disable all outside ports (inetd.conf, and your rc.scripts) and install portsentry you should be fine.
theres a lot of good security guides for linux just go to ldp.org. i would recommend u find and install portsentry, it detects scans and add the offenders to your hosts.deny to effectively block them off (however, there are ways around it but it does block most script kiddies).
to get linux to use your cable modem do the following: plug the cable modem into your computer nic. start a dhcp client (command is: dhcpcd eth#). where # is the number of your interface. good luck and make sure to secure your box.
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Re:Run FREESCO. It's free, works off one floppy, and only needs a 486.
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Re:ha…. first of all… you better be 100 percent scared all the time to leave a linux box online with a static ip and broadband and be asking something like this.
… but anyways..
don't use dhcp
mandrake 7.2:
netconf
setup nics for static ip
dns
for masq…
route add
ipchains
and dhcpd
more info www.linuxhelp.net or im me
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