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- Ramp up DNS security with these three steps
- This article is from TechRepublic's Security Solutions e-newsletter. Sign up instantly to begin receiving the Security Solutions e-newsletter in your inbox.A few months ago, I explained how to improve DNS security ("Strengthen vulnerable areas to improve DNS security"). This solution highlighted the most common problems of current DNS implementations.Afterward, I...
- Technical articles 2004-04-23
Additional Resources
- Strengthen security by implementing Network Address Translation
- Mike Mullins explains why you should rethink implementing Network Address Translation. Here are the issues to consider. Worried about security issues? Who isn't? Automatically sign up for our free Security Solutions newsletter, delivered each Friday, and get hands-on advice for locking down your systems. If you...
- Technical articles 2005-03-01
- Learn the pros and cons of Windows Firewall
- Is Windows Firewall up to the task of securing your network? Mike Mullins has his doubts. In this edition of Security Solutions, he delves into the details of Windows Firewall and weighs its pros and cons. Windows Firewall debuted with the release of Windows XP, and Windows XP...
- Technical articles 2006-04-20
- Disable NetBIOS and SMB to protect public Web servers
- on 5/8/06 i received the following titled techrepublic article:"Disable NetBIOS and SMB to protect public Web servers."by Michael Mullins CCNA, MCP 4/27/06i was/am particularly interested in the attractiveness of the security measures mentioned in the article.most importantly, i have been experiencing system crashes, identified as, being the result of "Nbt.sys...
- Discussion threads 2006-05-14
- Keep DNS servers from contributing to a DDoS attack
- How can a recursive query become a DDoS attack? It doesn't take much. Mike Mullins explains how an attacker can take advantage of a DNS server using recursion to perpetrate a DDoS attack, and he tells you how to prevent your organization's DNS servers from taking part. Is your...
- Technical articles 2007-03-22
- Manage session traffic with reflexive ACLs
- Reflexive access control lists ACLs add greater control to what traffic you allow into your network and increase the capabilities of extended access lists. Mike Mullins introduces you to reflexive ACLs and discusses how best to use them. Network administrators use reflexive access control lists (also known as...
- Technical articles 2005-09-15
- Defend your network from slow scanning
- Most serious attackers aren't going to advertise their intentions by performing a broad scan—the smartest attackers will try to come in under your detection radar. In this edition of Security Solutions, Mike Mullins discusses why attackers prefer slow scanning, examines the tools they use, and tells you how to defend...
- Technical articles 2006-11-16
- Lock down SNMP traffic using IPSec
- Network management and monitoring tools that use SNMP can greatly increase the efficiency of your network operations. However, it's vital that you take steps to secure the information you transfer using this protocol. In this edition of Security Solutions, Mike Mullins tells you how. The Simple Network Management Protocol...
- Technical articles 2006-02-02
- Defend your network from idle scanning
- Black hats employ several stealth scanning techniques, and one of those threats is the idle scan. Find out more about idle scanning, and learn best practices for protecting your network from this threat. If your organization's intrusion detection system IDS identifies a scan of your network, and you...
- Technical articles 2005-09-29
- Reduce vulnerability by limiting your network's reach
- The Internet is global, but your network might not need to reach every corner of the globe. In this edition of Security Solutions, Mike Mullins explains why you should define the purpose of your network and whom it serves to reduce your network's exposure. In the past, black hats...
- Technical articles 2006-01-12
- How do I... Make sure security logs exhibit accurate time with NTP?
- It's vital that organizations take steps to synchronize the time on their network and devices, but it's even more important to make sure the logs produced by security devices reflect the accurate time. In this edition of Security Solutions, Mike Mullins explains why accurate time is so important for security...
- Technical articles 2006-12-18
- Prevent open relays on Exchange Server
- Open relays on corporate networks are a contributing factor to the volume of unsolicited e-mail currently flying around the Internet—and the presence of such relays is often unbeknownst to the owners of those networks. Are your e-mail servers vulnerable to mail relaying? In this edition of Security Solutions, Mike Mullins...
- Technical articles 2006-04-06
- Consider these issues when making a VoIP decision
- Mike Mullins discusses two major areas require significant study and attention before beginning a VoIP project. Worried about security issues? Who isn't? Automatically sign up for our free Security Solutions newsletter, delivered each Friday, and get hands-on advice for locking down your systems.Voice over IP VoIP...
- Technical articles 2005-03-10
- Choose a secure remote management approach
- Examine some of your options for remote management solutions, such as the Microsoft approach, the generic approach, and the KVM over IP approach. Managing Windows servers remotely has become a standard with large networks. However, managing servers across an unsecured WAN connection can be a...
- Technical articles 2005-07-01
- Learn what Microsoft's Windows Server Update Services (WSUS) has to offer
- As the successor to Microsoft's popular Software Update Services SUS, the newly released Windows Server Update Services WSUS is the new and improved patch and update component of the Windows Server family of products. Mike Mullins takes a look at WSUS and explores what new functionality this tool brings to...
- Technical articles 2005-07-14
- Determine if SSL connections are truly secure
- An HTTPS Web site may make most users feel relatively secure, but this alone doesn't guarantee secure transactions. That's why it's important to make sure your users understand how to properly evaluate a Web site's security. Mike Mullins offers some tips in this edition of Security Solutions. When users...
- Technical articles 2006-03-30
- Take this four-phase approach to a network risk assessment
- Assessing your network for potential risks is part of the responsibility of providing network services—if you don't find the problems on your network, you can be sure someone else will. Mike Mullins discusses the four phases of an effective network risk assessment and offers best practices for conducting each phase....
- Technical articles 2005-10-27
- Protect your network from this Telnet vulnerability
- Make sure you secure your network from Telnet-based attacks by creating a first line of defense. This tip tells you how to add an access list to your router. Worried about security issues? Who isn't? Automatically sign up for our free Security Solutions newsletter, delivered each Friday, and get...
- Technical articles 2005-01-27
- Lock down Windows Server 2003 with the Security Configuration Wizard
- If you've been looking for a way to standardize and simplify security settings for your Windows Server 2003 servers, don't overlook the Security Configuration Wizard. Mike Mullins has the details in this edition of Security Solutions. Many organizations struggle with implementing the proper security features on a new...
- Technical articles 2006-06-08
- Create an IPSec tunnel directly to a remote Windows server
- Creating an IPSec tunnel directly to a remote Windows 2000 or 2003 server has its benefits. Learn about the details of making this type of secure connection. Most network administrators who work with routers are familiar with creating IPSec tunnels between routers for WAN...
- Technical articles 2005-07-07
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