Abigail  Cassin

Abigail Cassin


Leadership Election With Consul

1. Overview

In this tutorial, we’ll see how Leadership Election with Consul helps to ensure data stability. We’ll provide a practical example of how to manage distributed locking in concurrent applications.

2. What Is Consul?

Consul is an open-source tool that provides service registry and discovery based on health checking. Furthermore, it includes a Web Graphical User Interface (GUI) to view and easily interact with Consul. It also covers extra capabilities of session management and Key-Value (KV) store.

#architecture #java

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Buddha Community

Leadership Election With Consul
Norbert  Ernser

Norbert Ernser


Leader Election with Consul and Golang

Leader election is the process of designating a single node as the organizer of some task distributed among several nodes. The leader will be responsible for managing the others and coordinate the actions performed by other nodes. If for any reason the leader fails, other nodes will elect another leader and so on. This can help to ensure that nodes don’t conflict with each other.

Implementing the leader election algorithm with consul is quite easy:

  • Register the node as a service on Consul.
  • Create a session.
  • Try to put a Lock on that session. If you succeed you are leader if not… well you are not the leader.
  • Renew the session

It is just a naive implementation So do NOT use this in production.

Step 1: Download Consul and run on dev mode

$ ./consul agent -dev

**Step 2: **Register the node as a service on Consul

import (

// configs to connect to consul
client, err := api.NewClient(&api.Config{
    Address: "",
    Scheme:  "http",

if err != nil {

err = client.Agent().ServiceRegister(&api.AgentServiceRegistration{
    Address: "",
    ID:      "node01_monitoring", // Unique for each node
    Name:    "monitoring", // Can be service type
    Tags:    []string{"monitoring"},
    Check: &api.AgentServiceCheck{
        HTTP:     "",
        Interval: "10s",

if err != nil {

#consul #golang #microservices #consul #leader-election

Simpliv LLC

Simpliv LLC


Leadership Courses | Learn How to Speak Like a Leader | Simpliv

Imagine that every time you speak, people perceive you as a confident and authoritative leader. Wouldn’t it be nice to know that you can speak in a confident manner and in a way that is instantly understandable and memorable to your audience?

In this How to Speak Like a Leader course you will learn the following:

How to avid the most common speaking blunders that undermine authority
How to increase eye contact with your audience
How to structure your presentation so that you don’t seem like a mid-level bureaucrat
How to prepare in the least amount of time possible
This course is delivered primarily through spoken lecture. Because the skill you are learning is speaking related, it only makes sense that you learn through speaking.

The skill you will learn in this class is not primarily theoretical or academic. It is a skill that requires physical habits. That is why you will be asked to take part in numerous exercises where you record yourself speaking on video, and then watching yourself. Learning presentation skills is like learning how to ride a bicycle. You simply have to do it numerous times and work past the wobbling and falling off parts until you get it right.

This course contain numerous video lectures plus several bonus books for your training library.

TJ Walker has been coaching and training people on their presentation skills for 30 years. Now, through the power of Simpliv’s online platform, he is able to give you the same high quality training that he gives in person to CEOs, Fortune 500 executives, and Presidents of countries. Only you can now receive the training at a tiny fraction of the normal fee for in-person training.

How long this course takes is up to you. The longest part of the course involves you speaking on video, critiquing yourself, and doing it over until you like it. But if you get to the point where you love how you look and sound when you present it will be well worth the time spent. And having this skill will save you time for all future presentations in your life.

You can begin improving your leadership presentation skills right now. You may have an opportunity to speak out as soon as tomorrow, so why waste another day worried that your presentation skills are not up to high standards. Enroll in this course today.

There is a 100% Money-Back Guarantee for this course. And the instructor also provides an enhanced guarantee.

What others say:

“TJ Walker’s single-minded devotion to presentation has made him the #1 expert for executives seeking guidance on speaking to the public and media." Bob Bowdon, Anchor/Reporter, Bloomberg Television

“TJ Walker is the leading media trainer in the world." Stu Miller, Viacom News Producer

(TJ Walker’s Media Training Worldwide) “The world’s leading presentation and media training firm."Gregg Jarrett, Fox News Channel Anchor

Who is the target audience?

Anyone how is a leader or who aspires to be a leader
Leaders who wish to speak more effectively
Basic knowledge
Students will need to record themselves speaking using a cellphone camera or webcam
What will you learn
Speak with the confidence and authority of a leader
Project competence
Present ideas in an understandable manner
Make your key ideas memorable to your audience


#Leadership and Management Online Courses #Learn Leadership with Online Leadership Courses #Leadership Courses #Online Leadership Course

Election Cybersecurity: Preparing for the 2020 U.S. Elections.

At Cloudflare, our mission is to help build a better Internet. As we look to the upcoming 2020 U.S. elections, we are reminded that having the Internet be trusted, secure, reliable, and accessible for campaigns and citizens alike is critical to our democracy. We rely on the Internet to share and discover pertinent information such as how to register to vote, find polling locations, or learn more about candidates.

Due to the spread of COVID-19, we are seeing a number of election environments shift online, to varying degrees, with political parties conducting virtual fundraisers, campaigns moving town halls to online platforms and election officials using online forms to facilitate voting by mail. As the 2020 U.S. elections approach, we want to ensure that players in the election space have the tools they need to stay online to promote trust and confidence in the democratic system.

We’re keeping an eye on how this shift to online activities affect cyberattacks. From April to June 2020, for example, we saw a trend of increasing DDoS attacks, with double the amount of L3/4 attacks observed over our network compared to the first three months of 2020. In the election space, we are tracking trends and vulnerabilities to better understand the threats against these critical players. Our goal is to use the information to create best practices for election and campaign officials so they can be better prepared for the upcoming elections.

Key Takeaways:

  • When comparing types of attacks against campaigns and government election sites, we saw the exact inverse type of attacks with political campaigns experiencing more DDoS attacks while government sites experiencing more attempts to exploit security vulnerabilities.
  • On average, state and local government election sites experience 122,475 cyber threats per day with an average of 199 SQL injection attempts per day.
  • On average, political campaigns experience 4,949 cyber threats per day, although larger campaigns may see far more.

#athenian project #election security #elections #security

4 Timeless Lessons I Learned About Leadership From Joan of Arc

Think of someone who is a leader. It could be someone well known like Albert Einstein or Sojourner Truth. Or maybe it is a friend, a coworker, or a family member. What makes them a leader? What have they done to influence or inspire you? Are they the type of leader you wouldn’t mind becoming?

To guide your contemplation of this, allow me to share two of my favorites.

During a time marked by a system of racial segregation in South Africa called apartheidNelson Mandela rose to acclaim as a politically-driven anti-apartheid activist, spent twenty-seven years in prison for his work, and aided in apartheid’s abolishment in the early 1990s. Later, he became South Africa’s first Black and democratically elected president.

In the early 1400s,Joan of Arc, a young peasant girl, believing that God had called her to defeat the English in the Hundred Years’ War, entreated an army from the heir to the throne, Charles VII. She proceeded to lead attacks against the English (the most well known of which were at Orleans) and helped crown Charles VII as king while gaining support from her people.

What change do you desire to see in the future? What kind of ideas do you have to contribute to the greater good?

We say we want to progress or change, but who will rise to the occasion to make that happen? Who will be a voice for those who cannot find theirs or don’t have one? Who will become a leader?

Here’s what I have learned about leadership from Joan of Arc and Nelson Mandela.

A leader leaves an impact.

Through his efforts, Nelson Mandela left his mark by aiding in the liberation of his people from the constraints of apartheid.

It was no quick feat. He began his work in politics in 1942 and joined the African National Congress (ANC) in 1944. But apartheid wasn’t abolished until the early 1990s, around 50 years after his start.

#history #leadership-development #leadership #self-improvement

Wilford  Pagac

Wilford Pagac


Black Hat 2020: In a Turnaround, Voting Machine Vendor Embraces Ethical Hackers

Voting machine technology seller Election Systems & Software (ES&S) offered an olive branch to security researchers with new safe harbor terms and vulnerability disclosure policies at Black Hat USA 2020.

Voting machine-maker Election Systems & Software (ES&S) has formally announced a vulnerability disclosure policy, Wednesday, during a Black Hat USA 2020 session.

The move, which comes with the U.S. presidential elections looming in November, shows that voting-machine vendors are beginning to take the role of the security research community seriously in helping to secure critical election infrastructure. On Wednesday, ES&S said that its formally released policy applies to all digital assets owned and operated by ES&S – including corporate IT networks and public-facing websites.

“We’re publishing this policy today to formalize how we’re going to work with security researchers to improve election security going forward,” said Chris Wlaschin, vice president of Systems Security and CISO, ES&S. “This is a good first step in the right direction and we look forward to improving, everywhere we can, election security.”

The policy does not give authorization to test state and local government election-related networks or assets – “researchers should follow guidance from those entities for security researcher opportunities and conditions,” according to the report.

“For ES&S products not owned or operated by ES&S, we will accept reports as a result of research under this policy,” the company said.

The vulnerability-disclosure policy also provides safe-harbor language for security researchers. This means that ES&S will not initiative legal action against researchers for “good faith” or accidental violations of the policy. In addition, researchers will be exempt from the Digital Millennium Copyright Act (DMCA), and ES&S said it will not bring a claim against them for circumvention of technology controls.

Finally, researchers would be “exempt from restrictions in our Terms & Conditions that would interfere with conducting security research, and we waive those restrictions on a limited basis for work done under this policy,” according to the policy.

ES&S election security

The adoption of safe-harbor language marks a drastic turnaround from how the voting-machine vendor has interacted with the research community in previous years.

At DEFCON in 2018 for instance, ES&S and security researchers butted heads after the company criticized attempts to test voting machines. In a letter to customers, ahead of the conference, ES&S in 2018 also warned election officials that unauthorized use of its software violated the company’s licensing agreements.

Despite this contentious background, security flaws have popped up over the years in the company’s election infrastructure. In 2019, security researchers revealed that they found 35 backend election systems – made by ES&S – that connected to the internet at some point in the past year. And in 2018, the company revealed that it installed remote-access software on some voting machines over a period of six years, raising security concerns.

The announcement also comes during a year when election security is in the spotlight at Black Hat, with the U.S. elections three months away. Security researcher Matt Blaze opened Black Hat 2020 with a call-to-arms for cybersecurity researchers, asking the security space to leverage their expertise to help secure the upcoming U.S. presidential elections, which will likely be a mostly vote-by-mail affair.

Wlaschin for his part said that ES&S has actually been working now with security researchers for at least 18 months – but the program announced on Wednesday formalizes the process. As part of this, ES&S has worked with Synack, a crowdsourced penetration testing platform, to continue to develop its vulnerability disclosure process.

“If you apply [vulnerability disclosure] to our election critical infrastructure, there is a match made in heaven here between security companies and government bodies, and we’re trying to advance that collaboration,” said Mark Kuhr, CTO of Synack.

#black hat #critical infrastructure #vulnerabilities #web security #black hat security #election #election security #election systems and software #es&s