Whether you’re just starting in your technology career, or you’re an old hand who likes to go back to basics and understand how to move forward in your career, this episode of the Hedge is for you. Terry Slattery joins Tom Ammon and Russ White to discuss the things you can do to build a successful career as in the world of network engineering.
In this episode of IPv6 Buzz we chat about IPv6 addresses on host OSes: the different types, how they are formed, what they look like, how to tell them apart, and how they are used.
The post IPv6 Buzz 088: Host OS IPv6 Addresses – What’s Up With That? appeared first on Packet Pushers.
A variety of industry experts cite Artificial Intelligence and Automation as key emerging trends. But if you look around your organizations, you will see the evidence of AI projects and also an increasing focus on using automation in a variety of ways. IBM and Red Hat together can help you build on and apply these trends to your IT operations.
In this article, which is part 1 of the 2 articles that I intend to write, we will show how complex application environments produce more data than the humans tasked with running those environments can feasibly understand. And how the combination of an AIOps platform like Instana with an enterprise automation platform like Ansible Automation Platform can give human operators the edge they need to keep business critical applications running and users satisfied.
Having worked as an operation engineer in the past, I am aware of the all-too-familiar challenge of receiving a storm of alerts and trying to locate the root cause of an anomaly so as to isolate the problem and recover the services in the shortest possible time. However, conventional monitoring tools are often only able to raise Continue reading
The third quarter of 2021 was a busy quarter for DDoS attackers. Cloudflare observed and mitigated record-setting HTTP DDoS attacks, terabit-strong network-layer attacks, one of the largest botnets ever deployed (Meris), and more recently, ransom DDoS attacks on voice over IP (VoIP) service providers and their network infrastructure around the world.
Here’s a summary of the trends observed in Q3 ‘21:
Application-layer (L7) DDoS attack trends:
Network-layer (L3/4) DDoS attack trends:
A rarely covered topic in technology is professional development. Other careers have extensive programs to ensure practitioners develop and maintain a wide range of skills but this principle is rare in IT.
The post Heavy Strategy 012: Professional Development in Infrastructure Technology appeared first on Packet Pushers.
James Miles sent me a long list of really good questions along the lines of “why do we see so many Internet-related outages lately and is it due to BGP and DNS creaking of old age”. He started with:
Over the last few years there are more “high profile” incidents relating to Internet connectivity. I raise the question, why?
The most obvious reason: Internet became mission-critical infrastructure and well-publicized incidents attract eyeballs.
Ignoring the click baits, the underlying root cause is in many cases the race to the bottom. Large service providers brought that onto themselves when they thought they could undersell the early ISPs and compensate their losses with voice calls (only to discover that voice-over-Internet works too well).
James Miles sent me a long list of really good questions along the lines of “why do we see so many Internet-related outages lately and is it due to BGP and DNS creaking of old age”. He started with:
Over the last few years there are more “high profile” incidents relating to Internet connectivity. I raise the question, why?
The most obvious reason: Internet became mission-critical infrastructure and well-publicized incidents attract eyeballs.
Ignoring the click baits, the underlying root cause is in many cases the race to the bottom. Large service providers brought that onto themselves when they thought they could undersell the early ISPs and compensate their losses with voice calls (only to discover that voice-over-Internet works too well).
Javascript is a dynamically type language. The types of variables are evaluated at runtime based on the contents of the variable. Typescript is a superset of Javascript which adds static typing to the language (amongst other things). There are two kinds of types in Javascript;...continue reading
How best to return from a cliffhanger ending – in a previous post we used Django’s Model class .save() to write network state—that is CLI standard output transformed to JSON using pyATS—into a PostgreSQL database table. Django also helped us convert, or migrate, a Pythonic class-based model into this SQL table in the first place. […]
The post Triggering Network Automation From The Web appeared first on Packet Pushers.
With the Calico 3.10 release, Dynamic Packet Capture is available in Dynamic Service Graph.
This means users who require self-service, live troubleshooting for microservices and Kubernetes workloads can capture and evaluate traffic packets on endpoints without writing a single line of code or using any 3rd-party troubleshooting tools. Users don’t need to learn about or have knowledge of kubectl or YAML to troubleshoot their microservices and Kubernetes cluster. Calico helps enforce organizational security policies by only allowing users to access their assigned namespaces and endpoints for troubleshooting.
In most situations when you need to do a packet capture, the problem doesn’t last long and usually happens randomly. But once you narrow down the issue to a particular time or activity, you will need to set the right action plan to tackle the problem. Packet capture is now much easier, simpler, and faster than before.
Dynamic Packet Capture facilitates fast troubleshooting and easy debugging of microservice connectivity issues and performance hotspots in Kubernetes clusters. It is a Kubernetes-native custom resource that runs as part of user code against specific workloads in the cluster, without the need to execute any programs inside the cluster. Dynamic Packet Capture Continue reading