MLR Networking Ltd

0118 978 4008.

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Our Network Security Services :

- Firewall Technologies .
- Virus Scanning .
- Anti Spam systems .
- Security Auditing .


 

Firewall -

The First Line of Defence

Configuration of Astaro Security Gateways is accomplished through an extremely easy-to-use web-based interface. No additional software is required.

  • Installation wizards and default configurations simplify deployment.
  • Context-sensitive help includes examples for every function.
  • Menu options and labeling make sense to network administrators.


Click here

Astaro Security Gateways' security features are completely integrated, so that administrative effort is reduced and protection is increased.

Large deployments of Astaro Security Gateways can efficiently be managed from one location through Astaro Command Centre

Network Security

Astaro Security Gateways provide real-time protection for any size network by:

  • Defending attacks and probes at the perimeter;
  • Filtering allowed traffic for hidden risks and threats;
  • Giving employees secure remote access; and
  • Safely connecting branch offices together.

Astaro Security Gateways achieve network protection by using multiple, integrated technologies, including:

  • A high-performance stateful inspection firewall;
  • Intrusion detection and prevention, with continuous updates to detect and repel thousands of different intrusions;
  • Virtual Private Network gateway, supporting a variety of industry-standard connection protocols and encryption standards; and
  • a bandwidth shaper, allowing prioritization of certain traffic streams over others.
Web Security

Astaro Security Gateways enable extremely high levels of web traffic control by:

  • Preventing virus and spyware infections;
  • Controlling access to non-productive web sites; and
  • Providing granular reporting on compliance.

Astaro Security Gateways feature a rich set of web filtering techniques, including:

  • Dual virus scanning with constantly updated signature databases;
  • Spyware filtering that protects both inbound and outbound traffic; and
  • User based web-filtering, with the world's largest real-time URL database.
Email Security

Astaro Security Gateways provide complete, integrated high-performance email protection by:

  • Completely cleaning messaging traffic of viruses and malware;
  • Improving end-user productivity by eliminating spam, and
  • Protecting privacy through filtering of phishing probes and attacks.

Complete email protection is achieved by integrating various techniques:

  • Dual virus scanning -- each message goes through two sophisticated anti-virus engines;
  • Eight serial anti-spam techniques -- with self-release from quarantine -- permit easy administration;
  • Combination of URL filters and text patterns to effectively detect phishing attacks and
  • High performance proxy for transparent filtering of multiple inbound and outbound email protocols.
HOW TO ASSESS IF YOUR ARE AT RISK

We lock our houses, our cars, even our bicycles. But do we secure our company's information? Small businesses need to be aware that some networks don't even come with locks installed, much less any other type of protection. How secure is your company's most confidential data? Would your network withstand a hacker, a virus attack or a disgruntled employee?

If you access the Internet for only a couple of minutes a day the likelihood of your being 'hacked' is small. Why? Because each time you logon you are issued with a new 'identity number' (IP address) Hackers access networks through IP addresses. If your IP address is constantly changing, it is difficult for a hacker to locate your IP address quick enough while you are surfing, and get into your system.

However, the same cannot be said of some viruses. They infect unprotected systems, which in turn 'scan' around looking for other systems to infect. If your unlucky and happen to be online while a system scans your IP address a virus could be transferred to your system, leaving you wondering what happened.

Why a hacker would want to enter your system is anybody's guess. Some are merely curious and see hacking as a challenge. Others will hack your network with the intent to cause untold malicious damage or worse, steal valuable or confidential data.

With a permanent link to the Internet, i.e. ADSL line it is critical that you protect your system. Having a permanent link to the web is time saving and often more cost effective. But it opens up a very real danger of being hacked.


HOW A FIREWALL PROTECTS YOUR NETWORK

Not installing a Firewall is like leaving your front door wide open at night. It is inviting crooks to enter your premises. The equivalent to a locked and bolted front and back door - in computer terms - is a firewall.

The MLR Appliance Firewall is a Stateful Firewall based on a Linux Operating System .

Called "stateful" because the firewall can permit outgoing sessions while denying incoming. This kind of firewall inspects all packets going through the firewall. Packets are only forwarded if they match an access policy rule

It simply ignores any connections unless they're in the access rules (Thus preventing unauthorized access). It also has a connection tracking system that only lets in traffic replying to a request from inside the system.

In other words - A stateful Firewall is like having a security guard that checks people coming in have an appointment and are also sent through a metal detector to check nothing untoward has come in with them.

One of the benefits of renting a Firewall from us is that we keep a constant eye on new developments and update the Firewall regularly. This is essential as hackers and viruses are becoming more advanced. Security updates to your system are made on average every 3 months. A service not provided by an off the shelf firewall.


A FIREWALL HELPS WITH MAINTENANCE

Secure Remote Management and Support. If you take up the ADSL option and become a member of the MLR support system then your IT network can be supported over the web via remote control software using a VPN (Virtual Private Network) connection.

This is like having a virtual engineer on site. The VPN allows the engineer to view and take control of your PCs whilst speaking to the user, giving you the benefit of faster response to 90% of your PC problems and minimizing lost productivity time from users.

With MLR Appliance Firewall viruses are stopped before they enter your network. A lot of our clients ask us how they can prevent viruses getting into their system via email. At present most companies check their incoming mail with antivirus software on their server or desktop. This was fine until virus's started attacking the antivirus software first, disabling or removing it.

MLR Appliance Firewall will check incoming mail on the Firewall. Ensuring that viruses and trojans (used by hackers to get in) are stopped before they come anywhere near your network, and outbound mail so that you do not compromise your business standing, all this is included in the package price with updates every 5 minutes at our central servers from Sophos.


SECURE CONNECTION FROM HOME TO OFFICE

According to the Institute of Directors "The traditional office, as it is viewed in 2000, will have come to be seem by many companies as an outdated concept that has been held on to for far too long, and that by 2010 , 10% of the FTSE 100 companies will have no headquarters ". They predict that 25% will be working from home.

According to the 2000 government labour force survey 1.5Million or 5.5% of the workforce already work from home at least one day per week using a computer linked to their employer or clients office. This is a 19% increase on the previous year.

This is great for FTSE 100 companies with their FTSE 100 budgets. It costs the AA £7000 to rig up an employee with a PC and communications links plus the running costs. However with a home ADSL and an MLR Appliance Firewall we can make it more affordable for the small business.

Even more surprisingly, according to the AA their home workers do 30-40% more work than their office staff. Surprising isn't it?

Secure Remote Connection for Single offsite Users. MLR Appliance Firewall has an IPSec VPN option. This is industry standard VPN security system allowing secure cross platform connections.

Translated, this means your 2000/XP laptop can access your office network and server from any direct Internet connection anywhere, after the IPSec client software is installed. There is a reduction in actual data transferred, as the coding uses some of the available bandwidth (or speed) so for permanent connections e.g. home use, we recommend ADSL. Its slightly slower than the office connection but still very usable

Applications for this are endless. Roaming Sales persons, consultants working on clients sites, staff stuck at home due to weather or strikes. All can have access to their files, email etc.


A user-friendly point-and-click interface allows Administrators to block or allow access, for each protocol, to each internal network, server, service, and user group. The firewall inspects both networking information (packet headers) and application information (payloads) to detect and block suspicious traffic.

Astaro Security Linux Firewall features:

Stateful Packet Inspection (standard firewall capability)
Astaro Security Linux firewall inspects network packet headers to manage traffic between the Internet and internal networks, servers, and users. The firewall examines individual packet headers to make sure that they conform to the rules of the appropriate protocol (packet filtering), and tracks the sequence of events during ongoing connections to detect violations of normal processes (stateful packet inspection).


     (view online demo)

Application-Level Deep Packet Filtering
The Astaro Security Linux firewall utilizes application-level proxies to scan the application-related content of communications packets (payloads) to ensure conformance with rules specific to web traffic, email, DNS, and other broad application types.

Security Proxies
Astaro Security Linux firewall provides comprehensive proxies that simplify management by allowing administrators to quickly and easily enable and disable protocols and features such as content filtering, caching, whitelists and blacklists, file extension filtering, and MIME error checking. Proxies are included for the protocols:

HTTP  |   DNS  |   SOCKS   |  POP3  |   Ident   |  SMTP

NAT and Masquerading
Dynamic and static Network Address Translation (NAT) and masquerading conceal internal IP addresses behind a "public" IP address, to prevent hackers from learning about internal networks, servers, and users.

DoS Protection
Astaro Security Linux firewall protects against common Denial of Service (DoS) attacks like TCP SYN flood, ICMP flood, UDP flood, Smurf, Trinoo, and IP spoofing.

Traffic Shaping and QoS
Administrators can increase or decrease the priority of different types of traffic between specific endpoints, providing quality of service (QoS) for critical transactions.

Detailed Reporting
Astaro Security Linux provides detailed reporting on network traffic, connections, packet filter violations, hardware utilization on the firewall system, and other information for managing the firewall.

HOW WE INSTALL MLR Appliance FIREWALL

Firstly, it may be required that your domain is moved to the ADSL provider. Moving domains in theory is very simple but in our experience it is never straightforward.
Secondly, to receive Email directly we will ask your existing ISP or a new ADSL provider to provide an MX record and a backup mailbox.
Thirdly, Installation and required modifications to the existing system.


Firewall configuration
Connecting to ADSL Router
Testing ADSL Router and setting up client connection
Modifications to Exchange Server to route mail via gateway.
Setting up remote VPN connection to IT Department for ongoing support

WHAT'S THE NEXT STEP
Should the MLR Appliance Firewall be the solution to your company's email and security issues this is how to get the ball rolling.

Email us at firewall@mlrnetworking.co.uk or call the office and request a customized quote for your installation.
If you would like an ADSL line let us know. We can also organize all of that for you with our preferred provider.
If your happy with the quote we will send you the appropriate contracts for your approval. Once it is returned to our office it takes approximately 10 working days for the ADSL line and the firewall to be installed
Once installed your company will have all the technology at its finger tips that is required for all companies today.

 


 
 

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