Network Infrastructure – Firewalls, VPN, and Security

 

What is a Network Firewall?

Firewalls protect your network from destructive outside forces, such as hackers and viruses. Firewalls are either a software or hardware device that filters all of the information that gets in or out of your computer or network. They sort out anything that they deem harmful by denying access to the threatening element. Without a firewall, all the computers at your company would be exposed and vulnerable to attacks from the outside. Essentially, they would be directly accessible by anyone who is on the internet. The correct firewall configuration prevents this scenario by implementing security rules at every point of internet connection in your office. Fully-secure, customizable firewalls are a must for any company or organization.

Sample Network Firewall Projects:

Hire System Epic to deploy a new firewall, update firewall rules, translate firewall rules when migrating from one vendor to another, debug a firewall or cluster your firewall for high availability.

What is a Virtual Private Network (VPN)

With the incredible number of people working from home or on the road, and companies with offices spanning the globe, virtual private network or VPN servers that allow private access to and communication with a company’s network from a public domain have become essential in today’s business world.  In comparison to other methods of allowing protected communication, such as remote access servers, VPNs are an incredibly cost effective way to allow the secure flow of information.

A VPN typically serves 3 functions including allow remote access to an intranet, connect several intranets within an organization or to connect networks between 2 or more different organizations, creating an extranet.

Sample VPN Projects:

There are various business reasons for creating a VPN.  Let System Epic assist you in configuring a VPN on a firewall, establish a partner VPN and connect you to suppliers and other business partners or to configure a LAN extension across multiple locations. 

 

  • Redundant Cisco PIX and ASA Firewalls / VPN Endpoints
  • Linksys Firewalls / VPN Endpoints
  • Redundant Juniper Firewalls / VPN Endpoints
  • Sonicwall Firewalls / VPN Endpoints
  • Sonicwall SSL Accelerators
  • Windows Routing and Remote Access Server (RRAS)
  • Linux with IPTables / Netfilter Firewalls
  • Linux with Snort IDS systems
  • Linux with OpenVPN and Open S / WAN VPN Endpoints
  • Microsoft ISA Server
  • RSA SecurID Security Token Authentication
  • Nessus Security Scanner
  • Public Key Infrastructure (PKI)
  • Secure Sockets Layer (SSL)
  • Transport Layer Security (TLS)
  • Application Layer Gateways (ALG)
  • IPSEC, PPTP, and L2TP VPN protocols