Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
Distribution: RedHat from 4 -9, Fedora, Ubuntu, Centos 3 - 7, Puppy Linux, and lots of raspberry pi
Posts: 142
Rep:
DHCP question. Is this an attack or legitimate
Hi
Have a single FC2 box - only 1 nic, so not acting as a router.
Connected to cable modem and ip assigned fine.
In my /var/log/messages I saw the following:
Jun 17 13:21:41 mybox dhclient: DHCPREQUEST on eth0 to 62.2--.x.x port 67
Jun 17 13:21:41 mybox dhclient: DHCPACK from 62.2--.x.x
Jun 17 13:21:41 mybox dhclient: bound to (my ip address) -- renewal in 32753 seconds.
I've blocked out the ip address because I don't know if this is legitimate or not.
I've not seen this before with my old RH7.3 box connected to the same cable modem. So this might be a FC2 thing.
Is this my linux box trying to renew a lease (which is what I interpret this as) or is this someone trying to get a lease off me.
If it's the latter - why and what danger is there?
Firewall is running - stealthed according to grc.com - so shouldn't be offering a dhcp service to the outside world.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.