Solved

firewall?

Posted on 1999-01-20
2
209 Views
Last Modified: 2010-04-27
Hey guys
what exactly is a firewall?
0
Comment
Question by:bester
2 Comments
 

Expert Comment

by:ceb102298
ID: 1020782
A firewall is a protection for internet. The people can't enter in your network if you have a firewall.
0
 
LVL 12

Accepted Solution

by:
mark2150 earned 0 total points
ID: 1020783
Firewalls also can provide IP filtering. You can control where your users go using the firewall. You can set it up permissive or restrictive. Permissive allows access to all sites except ones you list. Restrictive denys access to all except ones listed.

TCP/IP allows you to set up a communications link between two IP addresses. A firewall only allows connections to be formed from the inside out and blocks attempts at connections being established from the outside in.

Firewalls can also act as PROXY server. In this case your internal IP addresses are hidden from the outside world. The sites on the outside only see *one* IP address (the firewalls) instead of seeing any of your internal addresses.

M

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

We recently endured a series of broadcast storms that caused our ISP to shut us down for brief periods of time. After going through a multitude of tests, we determined that the issue was related to Intel NIC drivers on some new HP desktop computers …
In this article we have discussed the manual scenarios to recover data from Windows 10 through some backup and recovery tools which are offered by it.
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

862 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now