Secure Your Infrastructure

Best of ENP: If you're running Windows DNS on your network, here's what you need to know to secure it against some common threats. Grab the aspirin and pull up a seat.

Best of ENP: Wireless security is still a bit of a mess. With Linux and RADIUS, you can begin to straighten it out.

Best of ENP: With OpenSSH you can ensure that the bits flowing over your network are wrapped in strong encryption. With Keychain, you can make managing OpenSSH's public/private key crypto a little less of a hassle. Our practically ultimate howto shows you how.

Microsoft's IIS and SQL Server can provide tempting targets for malicious people. Our security checklist will help you lower your risk of attack.

How do you patch a machine too badly infected to allow on your network? Here are two approaches.

Executive Briefing: Faced with a massive DDoS attack, what are your options? Not many as it turns out, but it helps to have friends upstream.

Even if you've tuned your spam-fighting arsenal to perfection, you've still got a big problem. Namely, what do you do with all that undeliverable spam? Here are a few ideas.

Executive Overview: With a wave of the wand, your network team has installed a VPN. While that solved some access issues for your remote users, it also created some new security problems.

With phishing and pharming attacks on the rise, protecting your DNS servers from cache poisoning is more important than ever.

Securing DNS: DNSSEC is no silver bullet for your DNS security concerns, but it can solve a few potential problems, and that's better than nothing.

Part One: Many security-minded admins scoff at passwords as tissue-thin protection against malicious users. But with Windows 2003 Server's password policy tools, you can do a lot to tighten down your most basic line of defense.

Executive Overview: Your network engineers will always have plenty of suggestions for how to secure the border. Here's a summary that will help you balance productivity with security.

Why worry about WEP, WPA, or PPTP when OpenVPN provides free, open, SSL-powered security for your wireless network? Here's how to set it up and connect a Windows client.

Cisco's Catalyst Intelligent features can help you lower the boom on rogue DHCP servers, ARP poisoning, and other network perils. We show you how, step by step.

Software Restriction Policies, Part Two: Last week we introduced you to the software restriction policies features in Windows Server 2003. This week we go in-depth to show you how to create your own SR policies to secure your systems against worms and malware.