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Articles by karthikeya Boyini
Page 3 of 143
How to Setup HAproxy Load Balance Server for Sharing Web Traffic
This article demonstrates how to configure HAProxy as a load balancer to distribute web traffic across multiple servers, providing high availability and improved performance for web applications. HAProxy is a free, open-source TCP/HTTP load balancer that ensures your website remains accessible even when individual servers fail. Server Setup Overview For this tutorial, we'll configure three CentOS 6.7 servers: HAProxy Load Balancer: 192.168.57.150 Web Server 1: 192.168.57.147 Web Server 2: 192.168.57.148 HAProxy Load Balancer Architecture HAProxy 192.168.57.150 Web Server ...
Read MoreWhat is Piggybacking in Networking?
In reliable full-duplex data transmission, the technique of hooking up acknowledgments onto outgoing data frames is called piggybacking. Why Piggybacking? Communications are mostly full-duplex in nature, i.e. data transmission occurs in both directions. A method to achieve full-duplex communication is to consider both the communication as a pair of simplex communication. Each link comprises a forward channel for sending data and a reverse channel for sending acknowledgments. However, in the above arrangement, traffic load doubles for each data unit that is transmitted. Half of all data transmission comprise of transmission of acknowledgments. So, a solution that ...
Read MoreHow to use OpenSSH Multiplexer To Speed Up OpenSSH Connections on Linux
This article will help you understand how to multiplex SSH sessions by setting up a master session and using a multiplexer to speed up SSH connections on Linux. What is SSH Multiplexing? SSH Multiplexing allows multiple SSH sessions to share a single TCP/IP connection. Instead of establishing separate connections for each SSH session, subsequent connections reuse the existing master connection, reducing server load and improving connection speed. SSH Multiplexing: Single Connection, Multiple Sessions Client Server Master TCP Connection ...
Read MoreBandwidth Delay Product
Bandwidth Delay Product (BDP) is a measurement of how many bits can fill up a network link. It gives the maximum amount of data that can be transmitted by the sender at a given time before waiting for acknowledgment. Thus it represents the maximum amount of unacknowledged data that can be "in flight" on the network. Bandwidth Delay Product Visualization Sender Receiver Data Transmission Acknowledgment BDP = Bandwidth × Round Trip Time ...
Read MoreGo-Back-N ARQ
Go-Back-N Automatic Repeat reQuest (Go-Back-N ARQ) is a data link layer protocol that uses a sliding window method for reliable and sequential delivery of data frames. It is a case of sliding window protocol having a send window size of N and receiving window size of 1. This protocol allows multiple frames to be transmitted before receiving acknowledgments, but requires retransmission of all frames starting from the first unacknowledged frame if any frame is lost or corrupted. Working Principle Go-Back-N ARQ uses the concept of protocol pipelining, sending multiple frames before receiving acknowledgment for the first frame. ...
Read MoreWrite Emails In HTML and then Send Them using Gmail
HTML email combines the visual appeal of web pages with email communication, featuring graphics, colors, formatting, and structured layouts. Unlike plain text emails that contain only basic text content, HTML emails resemble newsletters and marketing materials with rich formatting, images, and interactive elements. Email marketers consistently find that HTML emails perform better for conversions compared to plain text. However, creating effective HTML emails requires understanding email client limitations and following specific coding practices to ensure proper rendering across different platforms. What is HTML Email? HTML email uses HyperText Markup Language to create formatted messages that can include ...
Read MoreHTML DOM Input Button name Property
The HTML DOM name property is used to get or set the value of the name attribute of an input button element. This property is essential for form data submission, as the name attribute identifies the button when the form is submitted to the server. Syntax Following is the syntax for returning the name value − object.name Following is the syntax for setting the name value − object.name = "text" Here, text represents the new name value to be assigned to the input button. Return Value The name ...
Read MoreHTML DOM Input Checkbox defaultChecked Property
The HTML DOM input checkbox defaultChecked property returns the default value of the checked attribute of a checkbox element. This property reflects whether the checkbox was initially checked when the page loaded, regardless of its current state. Syntax Following is the syntax for getting the defaultChecked property − checkboxObject.defaultChecked This property returns a boolean value − true − if the checkbox was initially checked (had the checked attribute) false − if the checkbox was initially unchecked Understanding defaultChecked vs checked The defaultChecked property differs from the checked property − ...
Read MoreHTML DOM Input Checkbox autofocus Property
The HTML DOM Input Checkbox autofocus Property sets or returns whether a checkbox should automatically receive focus when the page loads. This property corresponds to the autofocus attribute in HTML and is useful for improving user experience by directing attention to important form elements. When a checkbox has the autofocus property set to true, it will be highlighted with a focus outline as soon as the page finishes loading, without requiring user interaction. Syntax Following is the syntax for returning the autofocus property − checkboxObject.autofocus Following is the syntax for setting the autofocus ...
Read MoreHTML DOM Option text Property
The HTML DOM option text property allows you to retrieve and modify the text content of an element within a dropdown. This property is useful for dynamically updating option labels without recreating the entire select element. Syntax Following is the syntax for getting the text value − optionElement.text Following is the syntax for setting the text value − optionElement.text = "newText" Return Value The property returns a string representing the text content of the option element. When setting, it accepts a string value that becomes the new ...
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