Why Asking for Help is Not a Sign of Weakness

Asking for help can be difficult. It can be hard to admit that we need assistance, and sometimes pride gets in the way of our better judgment. We may worry that asking for help will make us seem weak or incompetent. However, this could not be further from the truth. Asking for help is actually a sign of strength. It shows that we are willing to admit when we need assistance and that we are not afraid to ask for support.

Why is it hard to ask for help?

There can be many reasons why it is hard to ask for help. We may worry that we will seem weak or incompetent. We may also feel like we need to be able to handle everything on our own. However, it is important to remember that asking for help is not a sign of weakness. It takes a lot of strength and courage to reach out for assistance, and there are many people who are willing to support us through whatever challenge we may be facing.

Situations where it’s perfectly acceptable – and even necessary – to ask for help

There is nothing wrong with asking for help. In fact, it Continue reading

US Tax Day 2022. How leaving it to the last day impacts tax sites

US Tax Day 2022. How leaving it to the last day impacts tax sites
“Our new Constitution is now established, and has an appearance that promises permanency; but in this world nothing can be said to be certain, except death and taxes.”
 Benjamin Franklin, in a letter to Jean-Baptiste Le Roy, 1789
US Tax Day 2022. How leaving it to the last day impacts tax sites

The famous expression highlighting that only “death and taxes” seem certain in life (something that goes back to the beginning of civilization and to Ancient Egypt) is on people’s minds during the month of April in the United States. This past Monday, April 18, 2022, was Tax Day. So, were US citizens procrastinators, leaving their federal (and state) tax returns to the last day? Traffic to tax-related official federal and state websites seems to show it: there was a spike of more than 470% on April 18.

Just for reference, we can see on Cloudflare Radar that Internet traffic in the US, from our perspective, wasn’t significantly impacted on Monday, April 18, although there was a clear peak, higher than in the previous 14 days, that night at 22:00 EST (that’s 02:00 UTC on April 19). So, traffic (that includes DNS and HTTP requests from our standpoint) was 18% higher compared to the same time on the previous Continue reading

Practical Python For Networking: 4.4 – SMS Alerting Full Example – Video

This lesson continues the SMS alerting example from lesson 4.3. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python Networking and Distributed […]

The post Practical Python For Networking: 4.4 – SMS Alerting Full Example – Video appeared first on Packet Pushers.

New reference architecture: Red Hat Ansible Automation Platform 1.2 to 2 Migration Guide

 

Side-by-Side migration to Ansible Automation Platform 2

 

The release of Red Hat Ansible Automation Platform 2.1 comes with a re-imagined architecture that delivers exciting features such as automation mesh and automation execution environments among an entire suite of tools and components that enable enterprises to scale automation across their organizations.

With the importance of enterprise automation and taking advantage of the latest Ansible Automation Platform, we created a simple reference architecture to help guide you migrate from Ansible Automation Platform 1.2 to Ansible Automation Platform 2.

It consists of using a side-by-side methodology for the migration process via using the Ansible Automation Platform installer to do the migration and restoring a Database backup from a Ansible Automation Platform 1.2 cluster.  

 

Why are you going to love it?


Say goodbye to the guessing game of how you’ll migrate to the latest and greatest. Our goal is to simplify the migration planning, considerations and, most importantly, the step-by-step on how to do it. 

 

What will I find inside this reference architecture?

Inside this reference architecture you’ll find:

  • Migration considerations
  • Prerequisites
  • Infrastructure migration
  • Migrating virtual environments to automation execution environments

The migration considerations focus Continue reading

Using whereis, whatis, and which to find out about commands on Linux

When you're trying to find your way around the Linux file system and want some information on specific commands, the whereis, whatis, and which commands can help. Each provides a different view of the command you're asking about. In this post, I'll compare these commands and explain what they tell us and what they don't tell us.which The which command is the simplest of the three. When you use it to ask about a Linux command, it will run down your search path looking for executable files by the name you specify. These can be commands that are available on your system as well as scripts. As long as the files provide you with execute privilege, they fit the bill. Here are some examples:To read this article in full, please click here

Using whereis, whatis, and which to find out about commands on Linux

When you're trying to find your way around the Linux file system and want some information on specific commands, the whereis, whatis, and which commands can help. Each provides a different view of the command you're asking about. In this post, I'll compare these commands and explain what they tell us and what they don't tell us.which The which command is the simplest of the three. When you use it to ask about a Linux command, it will run down your search path looking for executable files by the name you specify. These can be commands that are available on your system as well as scripts. As long as the files provide you with execute privilege, they fit the bill. Here are some examples:To read this article in full, please click here

AWS SAA vs. CLF – Can I skip one?

AWS are known for their famous highly demanded Solutions Architect Associate (SAA) Certificate, and many thinks that it is the first step with AWS and Cloud Computing, the question now is it?, or is there any step that should be taken before, like the AWS Cloud Practitioner CLF exam?.

in this blog post we will discover and compare the agenda and the main pillars each exam teach you, and see if it worth skipping CLF and start directly with SAA.

Cloud Concepts

Your very first chapter to start studying AWS CLF with will be the cloud concepts, this will give a general overview of what is the idea and concept of cloud computing, what would AWS provide regarding that, and are you about to experience.

Luckily this part is shared between both the exams of AWS CLF and SAA, and we’ll find a share for it here and there, to understand what we are about to start with such exams.

that makes them equal here, 1-1.

Security and Compliance

Having zero knowledge about cloud computing and the restrictions and differentiations that might occur with it, upon implementing a new network on the cloud for the first time will require Continue reading

OSPF Administrative Distance – How preferred is it

OSPF Administrative Distance, or OSPF AD, is the key of electing OSPF among other routing protocols (if existed) leading to the same target within the same routing table, in this blog post we will discover the basics and types of Administrative Distances for OSPF across multiple different platform.

Administrative Distance

For Cisco systems operating systems, regardless of their platforms, all the IOS-XE, IOS-XR, and NX-OS OS’s treats OSPF based on the “AD” which has the value of “110”.

Now the most important thing is not just to know the numerical value which will be useless without knowing its order of preference among the other routing protocol Administrative Distances.

OSPF AD with Cisco OS’s

The values will be as follows regarding the Static and Dynamic Routing Protocols:

  • Direct = 0
  • Static = 1
  • eBGP = 20
  • EIGRP = 90
  • OSPF 110
  • IS-IS = 115
  • RIP = 120
  • iBGP = 200

This Shows that OSPF routes to a specific target can be hidden if one of the dynamics (EIGRP or eBGP) routes was installed in the routing table, that also includes the Direct and Static as well.

Route Preference

Dealing with devices/platforms from Juniper Networks will get you to face and Continue reading

Network Digital Twins Work Best in PowerPoint

A friend of mine sent me the following question a few months ago:

I thought you might know the best way (currently) to create a digital clone of parts of a production network? The objective is to test changes against a test network as part of a CI/CD process. Ideally, there would be an automation that could replicate selected parts of a production network in a test network.

TL&DR: Sounds great, but you might be solving the wrong problem.

Network Digital Twins Work Best in PowerPoint

A friend of mine sent me the following question a few months ago:

I thought you might know the best way (currently) to create a digital clone of parts of a production network? The objective is to test changes against a test network as part of a CI/CD process. Ideally, there would be an automation that could replicate selected parts of a production network in a test network.

TL&DR: Sounds great, but you might be solving the wrong problem.

Practical Python For Networking: 4.3 – SMS Alerting – First Example – Video

This lesson walks through the first example script for setting up SMS alerting. Course files are in a GitHub repository: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s the founder of Network Automation Nerds and has written the books Mastering Python […]

The post Practical Python For Networking: 4.3 – SMS Alerting – First Example – Video appeared first on Packet Pushers.

Privacy And Networking Part 2: Legal And Ethical Privacy

Given the arguments from the first article in this series, if privacy should be and is essential—what does the average network engineer do with this information? How does privacy impact network design and operations? To answer this question, we need to look at two other questions. First, what is private information, precisely? The network carries […]

The post Privacy And Networking Part 2: Legal And Ethical Privacy appeared first on Packet Pushers.

Practical Python For Networking: 4.2 – SMS Alerting – Python SDK And Environmental Variables – Video

This lesson describes how to install the Python SDK for Twilio so you can build SMS alerts. You can find the packages for this lesson in the GitHub repository that accompanies this course: https://github.com/ericchou1/pp_practical_lessons_1_route_alerts/tree/master/4_Packages Eric Chou is a network engineer with 20 years of experience, including managing networks at Amazon AWS and Microsoft Azure. He’s […]

The post Practical Python For Networking: 4.2 – SMS Alerting – Python SDK And Environmental Variables – Video appeared first on Packet Pushers.

Everything Is Better with a GUI (even netlab)

Some people think that everything is better with Bluetooth (or maybe it’s AI these days). They’re clearly wrong; according to the ancient wisdom of product managers working for networking vendors, everything is better with a GUI.

Now imagine adding network topology visualizer and GUI-based device access with in-browser SSH to an intent-based infrastructure-as-code virtual network function labbing tool. How’s that for a Bullshit Bingo winner1?

Everything Is Better with a GUI (even netsim-tools)

Some people think that everything is better with Bluetooth. They’re clearly wrong; according to the ancient wisdom of product managers working for networking vendors, everything is better with a GUI.

Now imagine adding network topology visualizer and GUI-based device access with in-browser SSH to an intent-based infrastructure-as-code virtual network function labbing tool. How’s that for a Bullshit Bingo winner1?

Deloitte and VMware announce cloud-services practice

Consulting giant Deloitte has expanded its long-standing partnership with VMware to create the Deloitte VMware Distributed Cloud (DVDC) practice, designed to help clients moderninze their applications and migrate to the cloud.Monty Bhatia, vice president of Global Systems Integrators at VMware said via email there are no new services or products coming from the alliance, just the creation of the practice within Deloitte, which brings in existing capabilities from Deloitte with a broader portfolio of VMware Cross-Cloud services. [ Get regularly scheduled insights by signing up for Network World newsletters. ]To read this article in full, please click here

Creating a quick calculation function on Linux

Anytime you're planning to do a lot of calculations on a Linux system, you can use the power of bash to create a quick function and then use it repeatedly to do the calculations for you. In this post, we'll look at how this trick works and what you need to be aware of to ensure that your calculations are correct.Let's start with this mathematical function as an example:$ ? () { echo "$*" | bc ; } Troubleshooting your bash scripts in Linux   This command sets up a function that will pass the values and mathematical operators that you provide as arguments to the bc calculator command. Note that to call the function, you simply type a "?" followed by the arguments. In the first example below, the arguments are 1, followed by the multiplication character "*", followed by a 2, a "+" sign and a 3. The result is 5.To read this article in full, please click here