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Can I Get More Mileage From My Existing Security Tools?
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tdsan
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tdsan,
User Rank: Ninja
11/21/2019 | 1:53:26 PM
There are a number of things

What do you advise?
  1.  Start looking into moving to IPv6, it gives users the abilityt to configure IPSec VPN AES256 connections to remote sites
  2. Enable SELinux on Centos/RHEL machines because of its ability to monitor filesystem, user, ports, network, applications and access to your system, most people have turned it off because the understand the power of it. NSA helped to develop it to thwart attacks
  3. User can utiize PfSense, this is apowerful security solution that gives users the ability to monitor, thwart network traffic (it allows the user to configure IPS/IDS, Network Monitoring, FW, routing, DNS which can all be done by configuring it on a virtual machine (free)
  4. Utilize UFW (Uncomplicated Firewall) along with logwatch, logwatch reviews the traffic from the Linux machine by extract log information and UFW blocks the traffic, we have found that UFW has blocked China, North & South Korea, Iran, Iraq locations
  5. Setup a honeypot and see what happens with the traffic accessing the network
  6. Confgure your cloud environment using a multi-layered approach (subnets) where Zone 0 (DB, Zone 1 (admin), Zone 2 (user), Zone 3 (DMZ) and Zone 4 (Internet), this can be done using Terraform, PowerShell or Python coding tools. Also, remove the public ip address from the machines that are not part of the DMZ or Internet. You could put your web traffic in the DMZ and isolate only certain ports where the SIEM (PfSense, Cisco, PaloAlto) can idenfity and mitigate that traffic
  7. Finally, if you a regional organization or national organizaiton, then add ACLs to block entire countries especially if the organization is not doing business in that country.
  8. Develop a relationship with certain vendors who have incorporated AI/ML in their mix of products, this will help the end-user make decisions even with a skeleton evening crew.

Todd


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