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Denial-of-service (DoS) attacks just got worse - and easier! DoS is actually a grab bag of a great many techniques (such as worms and SYN flooding), all with the objective of denying legitimate clients access to services running on Internet based servers. Microsoft's Windows XP operating system has arrived amid a multi-million dollar worldwide marketing fanfare the like of which we rarely see. Tired of email porn and body enhancement offers? John Young suggests using secure content management to halt the tidal wave. When employees of the city of Tallahassee asked for wireless access, finding a secure solution seemed almost impossible, says Curtis Franklin Secure Sockets Layer (SSL) Virtual Private Networks (VPNs) are quickly gaining popularity as serious contenders in the remote-access marketplace. Pentesting now builds in the latest tricks. But there’s still more to do, says Gunter Ollmann

Qualys has provided an automated remote vulnerability testing service for some time. However, a remotely operated service like that is limited in what it can do when it is trying to access your computers through a properly configured firewall. That is not to say it doesn't do a good job of showing up external vulnerabilities, but it can't give a complete vulnerability picture, as it lacks the 'enemy within' perspective. Incidentally, internal risks are not limited to dishonest or malicious employees - it could apply to an innocent user accidentally running a trojan attached to an email, because he is running it inside the firewall perimeter.
What is needed to complete a security audit is a vulnerability assessment carried out from inside the organisation on the corporate intranet to see what vulnerabilities are exposed to internal users who may be a threat. And that's exactly what QualysGuard Enterprise does with its Intranet Scanner option.

This box is one of the smallest in this Group Test but it managed to punch above its weight. It has most of the features that the bigger boxes have, but for a smaller price tag - good news for any business on a tight budget.

Now in version 3.6, the Tsunami VPN appliance sports a simpler management interface and new tools for managing access rules, as well as the ability to send password expiration warnings to remote users who authenticate against NT domains.

The LogiSense EngageIP Traffic Manager appliance combines the security benefits of firewall and web content filtering with other features that include web caching, routing and bandwidth management, with real-time bandwidth consumption reporting and quality-of- service (QoS) shaping.

CyberGuard offers a range of firewall/VPN appliances with specifications ranging from three Ethernet interfaces and 125Mbits/ sec throughput to 21 Ethernet interfaces and 2Gbits/sec throughput. All have an integrated VPN, run the same firewall software, and have the same configuration GUI. We tested model KS1500, which can have up to 18 Ethernet interfaces, of which two are gigabit-over-copper as standard.
Performance is the strength of the KS1500, which is designed to cope with 1.5 Gbits/sec throughput and up to 1.2 million simultaneous connections. The firewall boasts a host of certification standards including Common Criteria Eval­ uation Assurance Level 4+ (EAL4+), ICSA, ITSEC E3, Checkmark, etc. The secure operating system was designed to meet TCSEC/NCSC criteria at the 'Orange-book' B2 level.

Secure email service Hushmail appeared to be on the receiving end of hacking attempt yesterday when users of the service noticed an apparent defacement on its home page. Over 80 percent of public DNS servers around the world are open to pharming and DoS attacks, according to a new study.

One of the challenges to the increased use of encrypted email is the sheer complexity of it all. Designing and managing a secure email infrastructure includes anti-virus, anti-spam/content management, secure web mail, DNS protection, and related policy. However, a potentially high value opportunity that is often missed by enterprises is the use of encrypted email.

Researchers at the SANS Internet Storm Center have been tracking domain name system (DNS) cache poisoning attacks that redirected users to malicious web sites.

TOS stands for 'trusted operating system.' It can also be used to protect servers that are providing DNS, as well as file servers, database servers, proxy servers and mail servers. TOS can protect any static files, including whole directories, drives, Windows registries and, of course, web pages.

NetPilot was created to be a turnkey solution for businesses to solve all their internet connectivity requirements. It provides internet routing and the sharing of a single ISP account; proxy-based firewall and NAT; web server and web caching; servers for DNS, DHCP, FTP and email; access control and URL filtering. In addition it can act as a file and print server for Windows workstations.

Based on a Toshiba Magnia SG20 solution developer kit, this unit runs a special version of Linux created by Astaro. It includes a firewall, VPN, DHCP server, traffic management and content filter. The latter includes web blocking and anti-spam.
The firewall uses stateful packet inspection and includes proxies for HTTP, HTTPS, SMTP, POP3, DNS, IDENT and SOCKS. It has user authentication and offers protection from the most common forms of DoS attacks. Of course, it provides network address translation. In addition it detects port scanning.