Contact Info
Network Security Technology is a division of Access Technologies, a Nevada based Computer Consulting company. You can contact us by phone at 775.741.8278 or by leaving a comment on any of the pages on this site.-
Recent Posts
Recent Comments
- Domain Name Resolution Attacks | Network Security Technology on Man in the Middle Attacks
- Man in the Middle Attacks | Network Security Technology on Domain Name Resolution Attacks
- Sendmail e-mail Server Commandeered | Network Security Technology on Real Audio Server Compromised
- Real Audio Server Compromised | Network Security Technology on Session ID Hijacking
- Session ID Hijacking | Network Security Technology on Microsoft Sharing Vulnerabilities
Archives
Categories
Meta
Category Archives: Network Secuirty
Design and Implement a Secure Firewall
Firewalls are one of the most important components of a good security system. A firewall is any computer you set up to evaluate the traffic coming and going through your Internet connection. Many self-proclaimed security experts fail to address the … Continue reading
Posted in Internet Security, Network Secuirty
Comments Off
The Need for a DMZ
A DMZ, or de-militarized zone, is a network that you can build that connects to the Internet. In this network are all the machines that must talk to the Internet but doesn’t contain any of the machines used by your … Continue reading
Posted in Internet Security, Network Secuirty
Comments Off
Weak External Routers
Weak external routers is another issue that requires attention when securing a local network. Fortunately, many of today’s routers come configured in somewhat secure configurations. Still, though, you wan to ensure that you aren’t leaving anything to chance by failing … Continue reading
Posted in Internet Security, Network Secuirty
Comments Off
Domain Name Resolution Attacks
Domain Name Resolution attacks by David Schlecht DNS Attacks Domain Name Resolution, often referred to as Domain Name Service (DNS) attacks are the preferred approach for Man-in-the-middle attacks. There are occasionally vulnerabilities reported in the major DNS service providers, such … Continue reading
Posted in Computer Security, Internet Security, Network Secuirty
Tagged Internet Security, Software
1 Comment
Microsoft Sharing Vulnerabilities
Case Study Microsoft Sharing Vulnerabilities Sometimes even the best protected network can get infected. In this case, a client had a very strict firewall policy that did wonders at keeping out trouble, even at the expense of a less usable … Continue reading
Session ID Hijacking
Case Study Session ID Hijacking I got a concerned call from a client upset by what his webmaster had reported as “strange” web activities by some of the customers. Their web application was reporting error messages coming from multiple users. … Continue reading
Real Audio Server Compromised
Case Study Real Audio Server Compromised This client was running the Real Audio server and left the administration server running. The RealAudio system is administered through a dedicated port on the server. Once the attacker was able to guess the … Continue reading
Sendmail e-mail Server Commandeered
Case Study Sendmail e-mail Server Commandeered In this case a spammer had successfully exploited a vulnerability in the server code which allowed the sender to use the client’s machine for sending hundreds of thousands of spam. The tremendous load on … Continue reading
Posted in Internet Security, Network Secuirty, Server Security
Tagged Application vulnerabilities, Internet Security, Software
Comments Off