Common FreeRADIUS debug messages If you’re just getting started with FreeRADIUS, it can sometimes seem overwhelming when you run into problems. To the beginner, FreeRADIUS looks complex, but the debug troubleshooting information help... Network Security Best Practices Network Security Protocols
How one-time passwords work One-time passwords (OTP) and multi-factor authentication (MFA) are important mechanisms used to improve security. Both these strategies can combine the username and password credentials with a one-tim... Network Security Best Practices Network Security Protocols
Is NTLM secure? While Active Directory is widely used, it has still uses insecure protocols such as NTLM. The important question many people ask is “Does turning off NTLM increase security”? The answer is “maybe”, or... Network Security Best Practices Network Security Protocols Security Threats and Vulnerabilities
FreeRADIUS hardware requirements A common question for people installing the server is “what are the hardware requirements for FreeRADIUS?” The answer is both simpler, and more complex than you would think. The performance of a RADIU... Network Security Best Practices
RADIUS for Universities University environments present challenges for RADIUS system design. Every hour, on the hour, thousands of students close their laptops, move to a different location, and open them again. This unique ... Network Security Best Practices
How to connect FreeRADIUS to Active Directory for authentication Active Directory is widely used in the enterprise and university systems. This article describes how to connect FreeRADIUS with Active Directory, allowing you toauthenticate users against your existin... Network Security Best Practices Network Security Protocols
Preventing fraudulent logins with a session database In today's enterprise computer networks, credential sharing is a big problem for ISPs and companies with multiple locations. When an ISP runs RADIUS servers across different sites , new attack vectors... Network Security Best Practices
Why you should separate historical data from live data ISPs and telecoms are often legally required to keep user sessiondata for long periods of time. However, keeping these records can result in enormous databases tables which significantlyaffect the per... Network Security Best Practices Network Security Protocols
RADIUS password compatibility This article covers password storage compatibility for RADIUS deployments. You'll findan overview of how the RADIUS protocol works here. In order for RADIUS authentication to work, user passwords need... Network Security Best Practices Network Security Protocols
How to configure a RADIUS server Even though clients may prefer to configure their own system, some clients are unsure of how to configure a RADIUS server. Although the process can be complex, clients can learn how to setup a RADIUS ... Network Security Best Practices
Client Case Study: 802.1X implementation When months of 802.1X implementation attempts failed, we diagnosed firmware bugs and leveraged vendor relationships to deliver a working solution. One of our clients had customer-visible issues in the... Network Security Best Practices
Client Case Study: Slow SQL server performance When a major ISPs RADIUS database slowed to a crawl under growing data loads, we restored full performance without replacing a single system. Here's how proper database architecture beat a hardware up... Network Security Best Practices