Redhat 6.1 Gateway

I have setup RH Linux 6.1 with DNS setup and connected to our ISP. Now I would like all our users who connected to Internet to go through the DNS server. How can I do that? And how can I know it is going through the DNS. Do I need two network cards for this? I am using Windows 98 "telnet" and using Windows NT 4 DHCP server to obtain individual's IP address.

If my IP address is 172.xx.xx.xx and my nameserver is, when I telnet or ftp to other sites, how can I have listed as where I telneting from rather than the IP address?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

You need to set up the "reverse domain"

(ip revese mappings in linuxconf) this also requires that your ISP _supports_ end users managing their revese zones.

You dont "Need" two net cards, but it simplifies the operation. You arent mentioning if you are using masquerading or not which is also a factor.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Fixed the -1 problem on this question.
Escrow points corrected.

Community Support Moderator
Experts Exchange
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux Networking

From novice to tech pro — start learning today.