Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Firewall allow all policies per zone - what is secure?

Posted on 2012-03-11
1
Medium Priority
?
361 Views
Last Modified: 2012-03-13
Can somebody tell me which of these is secure and which are not.  I mean....probably none of them are secure, but just give me an idea of which are reasonably safe because of the relationships between the zone.  

If I were to ALLOW ALL SERVICES, ANY SOURCE TO ANY DESTINATION on these, which are reasonably ok?  If any are big security concerns, why?

lan to wan
lan to vpn
vpn to lan
vpn to vpn
vpn to wan

thanks for your help!
0
Comment
Question by:readymade
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 80

Accepted Solution

by:
arnold earned 2000 total points
ID: 37708548
Lan to wan allows all systems in the LAN access to the outside. normally this is fine, but if one of the systems is compromised with a virus that establishes a connection to a remote site through which commands can be sent means your entire LAN is now open.

VPN to LAN means that the security of the remote system is the weakest point and which you can not control unless you control the system.

LAN to VPN allows for systems on the LAN to access remote resources connected via VPN including responses to requests originated from VPN connected systems.

Similarly for VPN to VPN.

VPN to WAN you allow your connection to be used by VPN connected devices to access the outside.

This is required if your VPN policy is to secure all networks rather than split tunnel where only LAN traffic is sent through the VPN.

Limiting each zone  to the bare essentials will limit the attack vector from that location.

Security is based on the weakest link/system. VPN to LAN exposes systems you control to an external system that you do not.
0

Featured Post

Automating Your MSP Business

The road to profitability.
Delivering superior services is key to ensuring customer satisfaction and the consequent long-term relationships that enable MSPs to lock in predictable, recurring revenue. What's the best way to deliver superior service? One word: automation.

Question has a verified solution.

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

This story has been written with permission from the scammed victim, a valued client of mine – identity protected by request.
This article investigates the question of whether a computer can really be cleaned once it has been infected, and what the best ways of cleaning a computer might be (in this author's opinion).
Want to learn how to record your desktop screen without having to use an outside camera. Click on this video and learn how to use the cool google extension called "Screencastify"! Step 1: Open a new google tab Step 2: Go to the left hand upper corn…
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…

636 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