Forward Networks returns to Heavy Networking to discuss its approach to network modeling, verification, and assurance in this sponsored episode. We explore new features, including the ability to leverage Forward's data model for other applications and management systems, and its support for NSX-V and AWS VPCs.
The post Heavy Networking 429: Network Modeling And New Features In Forward Networks (Sponsored) appeared first on Packet Pushers.
True end-to-end networking starts in the network adapter
The post Why Doesn’t Cisco Sell Network Adapters When It Makes Them ? appeared first on EtherealMind.
The spectre and meltdown vulnerabilities took advantage of deficiencies in processor caching mechanisms. In this Network Collective Short Take, Russ White talks through how these attacks work and what further implications there may be in speculative processor cacheing.
The post Short Take – Cache Covert Channel appeared first on Network Collective.
Plixer has announced the FlowPro network probe to shine some light on sections of the network with limited flow export capability. Available both as hardware and virtual appliances, FlowPro observes network packets via SPAN or ERSPAN and can, based on its observations, create and export flow records to Scrutinizer. But that’s not all that FlowPro can do. There’s a bunch of analytical capability baked into the tool with both APM and security use cases.
The post BiB 069: Plixer’s FlowPro Shines A Light On Network Darkness appeared first on Packet Pushers.
The 1st of February was DNS Flag Day, which is an initiative of several DNS vendors and operators to address the problems of DNS name server implementations that are not in compliance with long-established DNS standards. This is causing the DNS to not only be unnecessarily slow and inefficient, but prevent operators from deploying new functionality including mechanisms to protect against DDoS attacks.
DNSSEC and other extended features of the DNS require EDNS0 (Extension Mechanisms for DNS – RFC 6891), and properly implemented name servers should either reply with an EDNS0 compliant response, or provide a regular DNS response if they don’t understand.
However, a lot of name server software is not implemented properly which has meant resolvers have had to incorporate workarounds when name servers don’t respond correctly. These cause unnecessary retries, delays, and prevent the newer features of the DNS being used.
As a result, the vendors of the most commonly used DNS software (BIND, Ubound, PowerDNS and Knot) will no longer be supporting these workarounds in new versions of their software, whilst a number of public DNS resolver operators (CleanBrowsing, Cloudflare, Google and Quad9) will no longer resolve hostnames served by broken name server implementations.
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SD-WAN allowed the sensor manufacturer to streamline and automate operations, and ultimately make it in a rapidly changing industry.