bitcoind – What are the network requirements for running a Bitcoin node?

I hosted my Bitcion node in a simple Kuberenetes setup (without istio). I recently learned from istio and would like to use it for hosting my Bitcoin node.

However, I am not sure which output values ​​to configure for the Bitcoin node to recognize and communicate with other peers. What is the right way? istio Initial configuration for Bitcoind?
With which hosts should bitcoind actually be able to communicate?

Network Programming – Understand the URL shortening requirements

Can a URL shortening service work on a network without Internet access? I have a configurable Bluetooth module that can advertise URLs (Eddystone URL framework), and I want to see the default web page of a device / web server that is on an isolated network without Internet access. Is that possible? Any links would be helpful.

Transit visa requirements for one person with COPR (PR Visa) to Toronto

I am an Indian Passport owner and have booked a ticket with KLM and return with Delta from New Delhi to Toronto. I have a stamped PR visa and go to Toronto to activate my Canadian PR and wanted to know if I need an electronic approval?

This is my first international flight and I wanted to check if transit visa requirements apply in Amsterdam (onwards) and Paris (return).
My flight details are below: ( Note: I do not leave the airport and stay in the transit area)

Flight details can be found below:


sharepoint online – To update the SPO task list for the following requirements

I'm working with a SharePoint online to-do list for one of the implementations. Below is the screenshot of the same.
Enter the image description here

I use Below JS Snippet to highlight the tasks in yellow whose due date is in the past.

I would like to know a few things:

  1. When a to-do list is opened via a link or accessed through the site content, by default it displays an expanded view of the parent and child tasks. Is there a way to change it so that the advanced view does not appear by default, so users must manually click on the parent task to view child tasks. This is important to know because there may be a situation where the parent job has more than 20 sub-tasks involved.

  2. Is it possible to make the parent task yellow when a child task is overdue? For example, in the screenshot above, the child task "Test Sub" is highlighted in yellow because the due date is in the past. Is it possible to highlight the parent task in yellow even though the parent task is: "The due date of Task Main is in the future, and the goal is to make the parent task yellow if any of the child tasks are overdue, and not sure is, if this is technically achievable, if possible, please indicate the solution.

Please help if someone knows an answer. Thanks in advance.

Include rate-limited requirements in nginx rate limit calculations (strict rate limit)

I have nginx set up as a reverse proxy for my webapp. I've configured nginx to limit the logon requirements for the rate to 10 / minute, with a burst of up to 20:

limit_req_zone $ remote_addr zone = login: 10m rate = 10r / m;
limit_req_status 429;

Server {
Location / Login {
limit_req zone = Login Burst = 20 Nodelay;


This rate limit works well with one limitation. If users try to automate other passwords at a speed greater than the allowed speed, the rate is limited, but Nginx still allows 10 requests / minute.

I want to configure the rate limit so that nginx includes blocked requests in the rate limit. This means that if someone tries to log in, no attempts will be granted until they slow down.

I have heard that this is called "strict" rate limiting.

Strict mode

An extension we have made is the concept of strict tariff limits. When a rate limit is triggered, we want to block traffic until the user stops sending traffic.

Can you do that in nginx?

zabbix 4.0 – hardware requirements for centos 16.04 LTS for

I need to set up zabbix 4.0 for monitoring less than 100 hosts (devices). Therefore, anyone can support the following points.

1) What is the minimum amount of memory (RAM) required to install the Zabbix server on a virtual machine?

2) How much memory (RAM) does the Zabbix Agent (Host Centos) need?

3) Can we use the SQLite database for the Zabbix server (to be installed on the VM)? and how much memory will it consume? What other databases can I use to setup Zabbix servers?

4) Is it ok if both the database and the Zabbix server remain on the same VM machine?

I am really grateful for the help you give me.

Thank you, Mrunal

Requirements – How to structure the SW documentation with SOUP components

I have to create documentation that complies with IEC 62304. When reading all the processes that need to be documented, I have some doubts about how to structure the entire documentation.

My concern is how the entire documentation is divided into separate documents and what should be included.

The entire software system can consist of 3 main subsystems:

  • Firmware on the embedded device (# 1)
  • An accompanying Android application (# 2)
  • An application backend used to collect, process, and store data from the devices (# 3)

In particular, I'm responsible for the latest application, a fairly flow-oriented, flow-oriented application that processes and stores data in a DB (a SOUP in the case of IEC 62304 compliance).

Now, the data stored in the database is visualized in a Grafana dashboard: In which document should this component be taken into account? What should be the limit of scope for the # 3 application and how it interacts with the other components?
Since Grafana would be a SOUP, I thought about writing it in the appropriate document that contains all the configurations and the SOUP management.
Should I specify the requirements for the required visualizations in the SRS of # 3 application?
What is the appropriate document to include this information in?

I use it as a template for all the documentation needed on this blog, as I'm new to software development with ISO / Standard regulations, but additional resources to help structure all documents in this regard are highly appreciated.

Many Thanks

What are the requirements for running a Dash Masterode?

Dash master nodes are archived full nodes. You activate the functions PrivateSend and InstantSend. Masternodes can vote on funding and governance proposals. Masternodes are paid for these services with 45% of the mining estate.

A masternode must maintain a security of 1,000 Dash, have a dedicated IP address, and be offline for less than 1 hour within 24 hours. Everyone can do a master fashion.

c # – How can I assemble business objects between requirements on a single page?

If I have a website that needs to re-create parts of the view every time an item is selected from a drop-down list, and those changes are kept until a user clicks the final "submit" button, how should I select the selected ones? Retain drop-down values?

At the moment I keep it in the session, but I have to reassign all dropdowns after each action, because they are otherwise zerothat ended up in a private method called Load session which is executed at the beginning of each action.

public IActionResult OnGetDropdown1Selected ()
LoadSession ();
// rest of the logic ...

I thought about storing these parts in a database, because each part is essentially a separate table, but I do not understand what to do in a situation where someone abandons creation and closes the browser. Then I have incomplete elements in the database that pile up. I would need a job removing these items, but it looks like an overkill for a very small application with essentially 3-4 views.

What is the standard approach when you assemble pieces of business objects on a single page and then, when the user presses Send, keep them in the database? I do not use a frontend framework, just RAJAAX.