How can I secure my LAN?

25 pts.
Tags:
LAN
Security
Dear Experts, I need to secure the intranet, recently there were many unknown activities from LAN which were attacking my servers, routers and switches. How do I secure the LAN and users in it from the Internet and from each other?
1

Answer Wiki

Thanks. We'll let you know when a new response is added.
The first, and easiest, way to protect a LAN is to put it in a separate subnet behind its own gateway router or firewall.

The next simplest step, at least for a Windows network, is to simply shut off port 139 on the gateway router. This prevents a malicious user from trying to map a drive to the LAN. 

To get more information about how to secure LAN network, go through the link:
 
https://searchsecurity.techtarget.com/answer/How-to-protect-a-LAN-from-unauthorized-access

Discuss This Question: 3  Replies

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.
  • rahulkl
    I appreciate your response, will act on it, but what about the threats from within, like I have experienced spoofed requests from within the the n/w.
    25 pointsBadges:
    report
  • Harisheldon
    For the threats within, lock them down by putting them in groups in your active directory and limiting that group only the permission that are needed.  If the user needs more rights, then create another group and add them to that.  Limiting a user is better than giving them the keys to the kingdom.
    12,915 pointsBadges:
    report
  • rahulkl
    ok now there is one problem, how do I identify those threats from within the n/w. Like I said in my previous response that spoofed requests were coming, how do I stop them and identify the source because after this only I can add them to an active directory group.
    25 pointsBadges:
    report

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

Thanks! We'll email you when relevant content is added and updated.

Following

Share this item with your network: