Debian 11 After Install Guide
I find Debian as one of the best Linux distros available. End users should generally […]
The post Debian 11 After Install Guide first appeared on Brezular's Blog.
Tech Bytes: Aruba Enhances Security Capabilities In EdgeConnect SD-WAN (Sponsored)
Today on the Tech Bytes podcast we’re talking SD-WAN. We dive into new features and capabilities in Aruba EdgeConnect SD-WAN, including new security and segmentation features, licensing options, and more. Our sponsor is Aruba, a Hewlett Packard Enterprise company.
The post Tech Bytes: Aruba Enhances Security Capabilities In EdgeConnect SD-WAN (Sponsored) appeared first on Packet Pushers.
Tech Bytes: Aruba Enhances Security Capabilities In EdgeConnect SD-WAN (Sponsored)
Today on the Tech Bytes podcast we’re talking SD-WAN. We dive into new features and capabilities in Aruba EdgeConnect SD-WAN, including new security and segmentation features, licensing options, and more. Our sponsor is Aruba, a Hewlett Packard Enterprise company.Ubuntu 20.04 Docker image – Python For Network Engineers
This is an updated Docker image of Python For Network Engineers (PFNE) based on Ubuntu 20.04 (minimal server distro). It contains all necessary tools for network / devops engineers to test automation and learn Python: OpensslNet-toolsIPutilsIProuteIPerfTCPDumpNMAPPython 2Python 3ParamikoNetmikoAnsiblePyntcNAPALMNetcatSocat If you notice a missing package which could be a value added for the scope of the … Continue reading Ubuntu 20.04 Docker image – Python For Network EngineersBGP Configuration on FortiOS
I’ve never done a post on Forti-anything, but I’m really appreciating the products Fortinet is putting out lately. They’re transitioning from “run your SMB off of our stuff” to “actually, we’re pretty good for larger companies”, so their GUI lacks features to keep the SMB from blowing stuff up, The advanced features are there in the CLI, and I wanted to use it to show that difference between the GUI and the real config.
Let’s review some of the basic configuration elements of BGP first. You need an autonomous system (AS) number and a router ID for your side. You also need the AS number of the remote system. You need the IP address on their side (usually the interface facing you). That looks something like this. We’re going to be ‘Fortigate 1’ for this exercise.
With just this information, we can turn up a BGP neighbor that does absolutely nothing. To actually send some routes, you need to tell BGP what to send. We’ll keep this simple and add just connected networks. Adding to the diagram, we get this.
Now we have something of value (though choosing BGP over OSPF or RIP for this little scenario is pretty horrible). Continue reading
The Cloud Gets Foggy
The explosion of sensor and IoT data at the edge is forcing organizations to rethink the location of their data processing infrastructure, “bringing down” the cloud to the ground in the form of fog computing.Network Break 405: Tech And Geopolitics Collide; Juniper Posts Record Q3 Results
Take a Network Break! This week we discuss a trio of stories at the intersection of tech and global political power struggles. Plus, startup Versa Networks lands $120 million investment in a pre-IPO round, and tech companies including Juniper Networks, Intel, and Google/Alphabet release financial results.
The post Network Break 405: Tech And Geopolitics Collide; Juniper Posts Record Q3 Results appeared first on Packet Pushers.
Network Break 405: Tech And Geopolitics Collide; Juniper Posts Record Q3 Results
Take a Network Break! This week we discuss a trio of stories at the intersection of tech and global political power struggles. Plus, startup Versa Networks lands $120 million investment in a pre-IPO round, and tech companies including Juniper Networks, Intel, and Google/Alphabet release financial results.Apple Only Pays 48M per year in Bug Bounties ?
This article from Apple boggles my brain: Apple Security Bounty. Upgraded. – Apple Security Research – https://security.apple.com/blog/apple-security-bounty-upgraded/ In the past two and a half years since opening our program, we’re incredibly proud to have awarded researchers nearly $20 million in total payments, with an average payout of $40,000 in the Product category, and including 20 […]
What to Expect When You’re Expecting Rural Broadband
Opt-outs by Starry and others, questions of speed, and making business cases have created uncertainty for enterprise network planners looking to reach offices and homes by operators fueled by the Rural Digital Opportunity Fund.Kubernetes 003. Developing and Publishing Cloud-Native Application: Overview of Key Kubernetes Primitives
Hello my friend,
It took a bit since our previous blogpost about the setup of the highly-available Kubernetes cluster with multiple control plane and worker nodes. We aimed to write the blogpost about the upgrade, but we will park it for now for two reasons:
- Despite this topic is needed for the exam, it is not very often performed within the cluster.
- We want to provide a broader overview of Kubernetes from the perspective of building and using applications on top of it.
Therefore, we decided to walk you through the main components used to build and publish your application in a cloud native way on Kubernetes. Let’s dive into that.
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Can Kubernetes Help to Automate Networks?
These days there are interesting projects emerging with Kubernetes acting as a management plane for network devices. Kubernetes in such projects has a role of the entity, which distributes configuration to the worker nodes, which are either proxies for Continue reading
Generalized Linear Models(GLMs) Rough Notes
Generalized Linear Model
In case of Linear Models, we assume a linear relationship between the mean of the response variable and a set of explanatory variables with inference assuming that response variable has a Normal conditional distribution with constant variance. The Generalized Linear Model permits the distribution for the Response Variable other than the normal and permits modeling of non-linear functions of the mean. Linear models are special case of GLM.
GLM extends normal linear models to encompass non-normal distributions and equating linear predictors to nonlinear functions of the mean. The fundamental preimise is that
1) We have a linear predictor. $\eta_{i} = a + Bx$.
2) Predictor is linked to the fitted response variable value of $Y_{i}, \mu_{i}$
3) The linking is done by the link function, such that $g(\mu_{i}) = \eta_{i} $. For example, for a linear function $\mu_{i} = \eta_{i}$, for an exponential function, $log(\mu_{i}) = \eta_{i}$
$ g(\mu_{i}) = \beta_{0} + \beta_{1}x_{i1} + … + \beta_{p}x_{ip} $
The link function $g(\mu_{i})$ is called the link function.
Some common examples:
- Identity: $\mu = \eta$, example: $\mu = a + bx$
- Log: $log(\mu) = \eta$, example: $\mu = e^{a + bx}$
- Logit: $logit(\mu) = \eta$, example: $\mu = Continue reading
Worth Exploring: NetTowel
A few months ago, Urs Baumann created NetTowel, a very nice CLI wrapper around several popular libraries, including Jinja2, TTP, NetMiko and netaddr. Although it seems he got busy with other things in recent months, and the development stalled a bit, the tool is definitely worth exploring.