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In the Gateway Security product, Symantec has come up with a range of gateway appliances, each of which combines firewall, anti-virus, virtual private network (VPN), content filtering and intrusion detection in one rack-mounted system that is 1U high.

Policy enforcement is only as good as your management system allows, so a serious vulnerability could go unnoticed without prior knowledge of the problem.

Security Expressions allows deployment using no-agent technology to ensure that, once installed on either Windows NT or 2000 systems, the administrator can add machines within a group, that are required to adhere to the policies that pertain to that group.

Another policy enforcement product, but with some added features that really give it some teeth, is iomart's NetIntelligence. As well as monitoring URL requests, it also looks at the network as a whole (hardware, software and all files) and can instantly detect whether any unauthorized changes have been made, or whether any prohibited content is suddenly present.

EnCase from Guidance Software has established itself as the leading tool for forensic investigators. Perceiving a need for similar tools in the enterprise space, the company announced EnCase Enterprise Edition, bringing most of the functionality enjoyed by criminal forensic investigators to corporate users.

SecureDoc is a disk encryption product that codes the entire hard disk, including operating system files and boot sector. Therefore it provides authentication of the user before the computer even boots up. It can also be used to encrypt all types of removable drives and media, including Flash cards. Although it can be installed in a password-only single-user environment, it provides an upgrade path to full enterprise-wide PKI and two- and three-factor authentication, integrating with third-party tokens.

Encrypting email is a must for the paranoid among us, and Crypto Anywhere provides the tools necessary to encrypt and decrypt email messages. Among its new features are Outlook integration and the ability to create an executable that can run off a floppy or flash disk, thereby circumventing the need to install software on a terminal when using Crypto Anywhere in an internet café.

Instead of examining disk drives for suspicious data, NetWitness monitors network traffic for suspicious events. It is easily installed from CD-Rom, requiring an activation key before it will function. It generates a unique computer ID number that has to be sent to their support centre, which will return an email with an activation key that locks the software to the workstation. The installation also offers a version of WinPcap if needed.

When old computers reach the end of their useful life within an organisation, many an IT professional immediately has thoughts of charity on their mind and donating an old computer means someone else can use it to gain skills or keep in contact with the outside world.

However, this is not without its problems. No-one in their right mind would donate the CEO's old desktop without deleting important data such as financial records or confidential emails. Reformatting the disk does not erase this data permanently.

This solution provides remote installation, backup and restore capabilities from a central console. Altiris Client Recovery Solution ensures that users can be back at work swiftly should they experience a system crash or virus damage. It requires 30Mb of hard disk space and a minimum of 150MHz processor power on the client side, with server requirements stretching to 350MHz processor, 100Gb hard disk, 128Mb RAM, Microsoft SQL 7.0 and IE 5.0 all running on Windows 2000 Server.

Vet AntiVirus covers most Windows operating systems so that you can protect this type of environment with relative ease. Making up a reference disk, as Vet calls it, for a boot disk if you are doing a completely new installation is a prerequisite. But the documentation is pretty thorough and walks you through the process with ease. Where you already have a resident anti-virus solution in place this must be disabled prior to starting your Vet AntiVirus installation.

Easy Recovery Lite is just one of Ontrack's solutions for recovering data. This solution does not repair lost or corrupt computer hardware settings, nor does it repair registry and configuration settings, but it does concentrate on data recovery. With an emergency boot disk to hand, even when you cannot access Windows, files can be extracted.

Symantec Ghost Enterprise Edition is an disk imaging solution. It does, however, allow incremental backup of all your client computers' data, providing the ability to restore any networked computer that has crashed. This includes restoration of the operating system and settings, all applications that it was running and all data files.

This product concentrates on hard disk data encryption. However , it does include a VPN client integration for IPCrytor VPN gateways, which is a remote access solution. Encryption may be in relation to your own local hard drive, or a specific directory or folder on the corporate LAN.

Although F-Secure may not be the first name in anti-virus that springs to mind, its products are among the heaviest hitters in the industry. Unlike some products which depend purely on their signature lists to be updated, F-Secure also comprises multiple scanning engines and heuristic detection techniques that make it one of the first products to detect new viruses. The company has now brought its expertise to bear in email security with F-Secure Anti-Virus for Internet Mail.

The product is available for Windows (NT and 2000). A Unix version would be nice, although there is a version for Unix which sits at the firewall level. Installation presented no headaches. However because of the way the product works, disk and memory requirements are quite high. It is also better to share the scanning across more than one scanner server to keep bandwidth usage lower.

NOD32 can be initiated for server or workstation use, making it very flexible for the SME market. The range of features is also good. Automatic updates are provided, and it also offers updates via CD or floppy disk for non-networked machines. Central configuration can be rolled out to workstations and a silent alert can be achieved for admin use.

NOD32 can be initiated for server or workstation use, making it very flexible for the SME market. The range of features is also good. Automatic updates are provided, and it also offers updates via CD or floppy disk for non-networked machines. Central configuration can be rolled out to workstations and a silent alert can be achieved for admin use.

SafeGuard Private Disk and SafeGuard Easy are well considered and professionally presented.

Encryption Plus Hard Disk encrypts entire hard disks or selected partitions. Encryption of the OS files is optional. It also offers pre-boot authentication whether or not the operating system files are encrypted.