Trending February 2024 # Google Lightning Talks: Https Explained # Suggested March 2024 # Top 7 Popular

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In the latest Google Lightning Talks video, John Mueller provides an introduction to HTTPS and goes over the basics of site migrations.

Mueller’s presentation includes the following talking points:

How HTTPS works

Why you might want to use HTTPS

How to migrate from HTTP to HTTPS

Common questions about HTTPS

Here’s a quick recap of each section of the video.

What is HTTPS?

HTTPS is a secure connection between sites and users. It protects websites from unwanted activity.

Why use HTTPS?

When it comes to website security, HTTPS ensures three things:

Authentication: Users can be certain they’re engaging with your website and not an intermediary.

Data integrity: A secure connection prevents data tampering, so users see your content as intended.

Encryption: Information exchanged between a website and its users will be kept safe.

Web Browser Requirement

Another reason to use HTTPS is because modern browsers require it in order to utilize certain features.

HTTPS is required for the following types of features:

Geolocation

Auto-fill for forms

Camera

Progressive web apps (PWA)

Push notifications

Caching

“Not Secure” Label in Address Bar

There’s no hiding whether or not your site uses HTTPS, as it’s highlighted within the browser address bar.

Non-HTTPS sites are labeled in red as “Not secure,” while sites with HTTPS are labeled “secure” in green.

Related: Google Chrome to Start Warning Users About Insecure Forms

Slight Ranking Boost

Google gives pages that use HTTPS a slight ranking boost in search results.

However, toward the end of the video, Mueller goes on to say the ranking boost is “quite small.”

HTTP pages can still rank over HTTPS pages when the content is more relevant to the query.

Migrating to HTTPS

HTTPS URLs are different than their HTTP counterparts.

That means migrating from one to the other involves redirecting every single HTTP URL to the equivalent HTTPS URL.

Mueller breaks down the migration process into the following steps:

Set up your HTTPS site

Verify ownership in Google Search Console

Test the HTTPS site extensively

Redirect all HTTP URLs to HTTPS URLs

Monitor the migration in Google Search Console

Optional step: Set up HTTP Strict Transport Security (HSTS)

Common Questions About HTTPS

How long do I need to keep the redirects?

Redirects should remain in place forever. There’s never a reason not to redirect from HTTP to HTTPS.

Can I move just a few pages?

Technically it’s possible to move just a few pages to HTTPS. In practice, Mueller says it’s not much more work to move the whole site over, which is what should be done anyway.

Which HTTPS certificate should I use?

Any certificate that’s supported by a modern web browser is fine. Mueller specifically suggests free certificates from the non-profit organization Let’s Encrypt.

How long does a migration take?

Google has a lot of experience with HTTPS migrations, Mueller says, so they can usually be processed within a week.

Will the migration hurt my site’s ranking?

“Usually not,” Mueller says. After all, it’s still the same site. If anything, rankings may benefit from the slight boost mentioned earlier.

Can I revert if needed?

Technically, yes. But it’s not recommended. Instead of moving back, Mueller recommends fixing any issues you have and moving forward.

For more detail on any of the above sections, see the full video below:

You're reading Google Lightning Talks: Https Explained

5 Best Lightning To 3.5Mm Headphone Jack Adapter

5 Best Lightning To 3.5mm Headphone Jack Adapter [2023 Guide]

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Lightning to 3.5 mm headphone jack adapters are intended to connect devices that use a 3.5 mm audio plug to your lightning devices. 

This pretty much includes any device that has a lightning connector such as iPod, iPhone, and iPad. Do you like scattering the Internet and looking for deals before buying a new product?

There’s nothing wrong with that. On the other hand, if you’re a busy person, you might as well check out the handy list below.

We’ve listed the top five options on the market, so be sure to check them out and choose the one that best fits your budget and needs.

Compatible with iOS 11/12/13 or later systems

Advanced noise reduction technology

MFi certified –designed to connect specifically to iPhone

Great sound quality

Affordable

Volume control issues

Check price

This Apple MFi certified iPhone 3.5 mm headphone jack adapter is your best bet if you support the belief that Apple products work best with other Apple products.

Buy it and you will see that it works with most headphones, including some high-end models with higher impedance ratings.

Extensive compatibility

Advanced noise reduction technology

Apple aux adapter made of Hi-Q aluminum alloy case

Portable size

Inexpensive

Compatibility issues for some users

Check price

Things are as simple as they can get: you are about to buy a reliable UGREEN 3.5mm lightning adapter that’s certified by Apple to meet rigid iPhone requirements.

Only plug the adapter in your iPhone, let your Apple equipment recognize it for a few seconds, and then enjoy the music vibe.

Moreover, the durable design is unquestionable, with no damages, scratches, bendings, or tearings to worry about.

Ideal for stationary usage

MFi-certified, so it meets Apple performance standards

Supports iPhone XS, XS Max, XR, X, 8/8 Plus, 7/7 Plus

Connects to car stereos and portable speaker systems

Convenient 3 foot/0.9M and 6 foot/1.8M lengths

Questionable audio at times

Check price

Expert tip:

Some might argue that it isn’t the most practical situation for everyday use and they aren’t wrong.

However, it is a top recommendation if you plan on keeping it in one place like on a dedicated pair of portable headphones, or even in your car.

Premium aluminum housing

Premium nylon braided type C cable

Extended 18-month warranty

Bold color choice

Friendly 24/7 customer service

Not compatible with iPad Pro 11

Check price

This JSAUX lightning to 3.5mm adapter is also worthy of your attention. Firstly, it meets Apple’s MFi certification requirements.

The Apple MFi certification and JSAUX strict quality testing ensure that you can securely connect with your Apple devices.

As for the special strain relief design, can bear 15000+ bends in strict laboratory tests, while the premium aluminum housing makes the cable more durable.

Compatible with headphones, microphones, and speakers

MFI certified by Apple to meet rigid iPhone requirements

100% copper wire core

Seamless Plug-and-Play connectivity

Small enough to fit in your pocket or bag

Check price

The Chargeworx lightning adapter was built for everyday use. Don’t you imagine that its strong, durable shell turns it into a bulky beast that you cannot carry around.

You get instead a well built and compact adapter at the same time. Most important of all, you can listen to their headphones without distortions or sound quality loss.

Even more, ChargeWorx audio lightning adapters are designed to work with all your favorite iPhones, including the iPhone X, XR, XS, and XS Max.

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Small Business Seo Techniques Explained

A quick guide to small business SEO

There are more than 28 million small businesses in the United States alone, and they account for 99.7% of all businesses in the country. Are you among them? If the answer is yes, you know just how challenging it is to rise to the occasion and beat your competitors in the battle for customers.

In the 21st century, the battlefield is online – between 70 and 80% of people claim they research a company before choosing to do business with them. Evidently, in order for a small business to thrive, it has to boost its online influence. Still, no more than 17% invest in SEO.

Whether they do not understand the value of this marketing channel, or simply do not understand it, the fact is – SEO is essential for business growth. Whichever the case, here is the gist of everything a young entrepreneur should know to get started.

Defining SEO

Search engine optimization represents a methodology of tactics, which focus on improving a website’s ranking in organic search results. Namely, what makes organic (natural) search results more appealing to marketers is the fact that desktop users choose them over paid results 95% of the time.

It is about providing people with what they want and presenting those signals to search engines in order to rank higher. When talking about SEO, we are actually referring to a set of techniques that have to work together to form a bulletproof digital marketing strategy. Some of the techniques include:

Website architecture and optimization

Keyword research and analysis

Link building

Content marketing

Social media marketing and promotion

The importance of SEO

Around 8 out of 10 customers state they research a company before making a final purchase decision. If your prospects cannot find you in search results, naturally, they will go to one of your competitors who has already mastered their digital marketing tactics.

SEO is what gets you listed in the ‘modern phonebook’, to call it that. However, it does not list businesses alphabetically, but in accordance with search engine guidelines. Online marketing helps you attract and acquire new customers, and it requires your focus as soon as you set up your website.

Search engine optimization is especially relevant for startup companies and small businesses that do not have the funds to splurge on expensive marketing campaigns – SEO does come at a certain price, but a significantly more affordable one. What makes this marketing strategy ideal for small players looking for a way to swim with the big fish in the online waters.

What a successful SEO strategy should integrate

On-site SEO – optimization of everything from your content to images in accordance with search engine guidelines.

Off-site SEO – optimization of the company in listings and online directories; this includes reaching out to industry influencers and anyone who might find your website resourceful and worth linking to.

You begin by building a website and move on to content optimization – that is, optimization of everything from your Home, About us and Services pages to a company blog. Still, note that keyword research precedes this process in order to determine the phrases that are best to target. These represent words and phrases your customers are most likely to type into a search engine when looking for solutions you have to offer.

To define relevant keywords, you will have to research your competitors to see what they rank for and study your customers and see what they search for. During this process, you will benefit most out of Keyword Planner, but you can always check out other keyword research tools and combine the info you collect.

Most important SEO techniques to consider Content marketing

Quality content on your website provides opportunities on several levels:

Well-written and well-optimized content ranks you higher in search results

Establishes you as a knowledge leader in the industry

Acts as a relevant source of information for your target audience

Link building

To distribute your content across the web, you have to implement link building process into your strategy. Target only high authority websites, offer your website as a relevant resource and get others to link to your blogs or landing pages.

Social media marketing The bottom line

SEO is not a that-one-time-thing-you-paid-for; it requires a constant investment of your resources and attention. It is an ever changing industry and you are obliged to follow updates as they occur in order to keep your business high in search results. Your business search engine optimization strategy will have to be improved based on your customer preferences, search technology and the natural growth of your business.

Hyperparameters In Machine Learning Explained

To improve the learning model of machine learning, there are various concepts given in machine learning. Hyperparameters are one of such important concepts that are used to improve the learning model. They are generally classified as model hyperparameters that are not included while setting or fitting the machine to the training set because they refer to the model selection task. In deep learning and machine learning, hyperparameters are the variables that you need to apply or set before the application of a learning algorithm to a dataset.

What are Hyperparameters?

Hyperparameters are those parameters that are specifically defined by the user to improve the learning model and control the process of training the machine. They are explicitly used in machine learning so that their values are set before applying the learning process of the model. This simply means that the values cannot be changed during the training of machine learning. Hyperparameters make it easy for the learning process to control the overfitting of the training set. Hyperparameters provide the best or optimal way to control the learning process.

Hyperparameters are externally applied to the training process and their values cannot be changed during the process. Most of the time, people get confused between parameters and hyperparameters used in the learning process. But parameters and hyperparameters are different in various aspects. Let us have a brief look over the differences between parameters and hyperparameters in the below section.

Parameters Vs Hyperparameters

These are generally misunderstood terms by users. But hyperparameters and parameters are very different from each other. You will get to know these differences as below −

Model parameters are the variables that are learned from the training data by the model itself. On the other hand, hyperparameters are set by the user before training the model.

The values of model parameters are learned during the process whereas, the values of hyperparameters cannot be learned or changed during the learning process.

Model parameters, as the name suggests, have a fixed number of parameters, and hyperparameters are not part of the trained model so the values of hyperparameters are not saved.

Classification of Hyperparameters

Hyperparameters are broadly classified into two categories. They are explained below −

Hyperparameter for Optimization

The hyperparameters that are used for the enhancement of the learning model are known as hyperparameters for optimization. The most important optimization hyperparameters are given below −

Learning Rate − The learning rate hyperparameter decides how it overrides the previously available data in the dataset. If the learning rate hyperparameter has a high value of optimization, then the learning model will be unable to optimize properly and this will lead to the possibility that the hyperparameter will skip over minima. Alternatively, if the learning rate hyperparameter has a very low value of optimization, then the convergence will also be very slow which may raise problems in determining the cross-checking of the learning model.

Batch Size − The optimization of a learning model depends upon different hyperparameters. Batch size is one of those hyperparameters. The speed of the learning process can be enhanced using the batch method. This method involves speeding up the learning process of the dataset by dividing the hyperparameters into different batches. To adjust the values of all the hyperparameters, the batch method is acquired. In this method, the training model follows the procedure of making small batches, training them, and evaluating to adjust the different values of all the hyperparameters. Batch size affects many factors like memory, time, etc. If you increase the size of the batch, then more learning time will be needed and more memory will also be required to process the calculation. In the same manner, the smaller size of the batch will lower the performance of hyperparameters and it will lead to more noise in the error calculation.

Number of Epochs − An epoch in machine learning is a type of hyperparameter that specifies one complete cycle of training data. The epoch number is a major hyperparameter for the training of the data. An epoch number is always an integer value that is represented after every cycle. An epoch plays a major role in the learning process where repetition of trial and error procedure is required. Validation errors can be controlled by increasing the number of epochs. Epoch is also named as an early stopping hyperparameter.

Hyperparameter for Specific Models

Number of Hidden Units − There are various neural networks hidden in deep learning models. These neural networks must be defined to know the learning capacity of the model. The hyperparameter used to find the number of these neural networks is known as the number of hidden units. The number of hidden units is defined for critical functions and it should not overfit the learning model.

Number of Layers − Hyperparameters that use more layers can give better performance than that of less number of layers. It helps in performance enhancement as it makes the training model more reliable and error-free.

Conclusion

Hyperparameters are those parameters that are externally defined by machine learning engineers to improve the learning model.

Hyperparameters control the process of training the machine.

Parameters and hyperparameters are terms that sound similar but they differ in nature and performance completely.

Parameters are the variables that can be changed during the learning process but hyperparameters are externally applied to the training process and their values cannot be changed during the process.

There are various methods categorized in different types of hyperparameters that enhance the performance of the learning model and also make error-free learning models.

Security Exec Talks About Challenges Facing It

CIOs and their managers are simply being inundated.

They’re being inundated with information about what’s happening on their network. They’re being inundated with a flood of vulnerabilities and the patches needed to fix them. They’re inundated with trying to learn a new language — business speak. And with so much work and stress flooding in, it’s easy for an IT manager to get lost in the technical fog of war.

Here, she talks to eSecurityPlanet about the challenges facing IT managers.

One of the biggest problems right now is that there is so much data. How do you collect that data and look at it and make sense of it? There are firewall logs, system logs, IDS logs. There’s so much data that you need good correlation and reporting mechanisms. It’s really, really important for companies to deal with.

They’re just realizing now that they need to do something about it. A couple years ago if you asked executives if they knew what an IDS was, they wouldn’t have known. Now they know it’s intrusion detection. Now we’re at the point where the technology is there. They just have to figure out how to deal with the data.

Another thing is understanding the different threats on the horizon. It’s all about understanding what threats are out there and what you need to protect your company from them… They don’t know what’s coming. It’s a big problem.

I wouldn’t say they get sidetracked. It helps to raise visibility [about security issues] in the company at a high level. It sometimes helps to create awareness.

There’s a problem with the way people present information to the executive management. It’s not really clear. This technical information is not being simplified. From a systems level, it’s very difficult to uplevel that to an executive. You give them complicated information and too much of it. They’re not going to get it. They don’t have time to think about it, so they end up not understanding the threat.

I wouldn’t want to pin it on IT. The information is complicated. Once it’s simplified at a systems level, it’s easier to communicate at a higher level. It’s not really a skill for a lot of people at an IT level, and especially not at a systems administration level. Companies that really know how to communicate security at a business level and can simplify technical information, they’re the ones who get money for their security efforts — and they have better security.

It’s not a simple solution or everybody would have all the patches installed today. The idea of keeping up with all the vulnerabilities relevant to your company and having the staff to install those patches is pretty overwhelming. You need patch management software that works on a large distributed network. Sometimes it’s a catch-22. There may be patch management software but somebody doesn’t have funding for it. Or they think they can have the systems administrators update the patches because that’s their job. It’s not that simple of a problem to solve.

Business doesn’t wait for security. Technology gets deployed because the business needs to run. Usually what happens is that businesses deploy technology before security is strong enough, and a lot of times that forces the solution… Definitely. I worry about it. I got a call today from somebody running a business that has deployed wireless technology and they don’t have a clue about it. They were already broken into and they don’t even know how it happened. If you deploy wireless without thinking about security, there’s a good chance that’s going to be a problem.

Powershell Global Variable: Explained With Examples

PowerShell is a versatile scripting language system administrators and developers use to automate tasks and manage system configurations. One important aspect of PowerShell scripting involves the use of variables to store information that can be referenced and manipulated. Global variables hold a significant place among the different types of variables due to their reusability and broad scope.

In PowerShell, global variables are accessible throughout the entire scope of a script or session. They allow data to be shared between different functions or modules. To create a global variable in PowerShell, you can use the “global” keyword at the beginning or the top of a script.

In this article, we’ll have a detailed discussion on PowerShell global variables. We’ll go over examples and use cases to help you better understand the concept.

Let’s get into it!

Before you start making global variables in PowerShell, let’s quickly review the basics of global variables. You need to have a good understanding of the basics to be able to make valuable variables.

In PowerShell, the variable scope is the area where a variable is accessible or visible.

PowerShell protects access to variables, aliases, functions, and PowerShell drives (PSDrives) by limiting their visibility and modification within specific scopes.

The different PowerShell scopes include:

Global: The variable is accessible throughout the entire PowerShell session.

Local Scope: The variable is accessible only within the current script or function.

Script: The variable is accessible within the current script.

Private: The variable is only available within the current parent scope, and it is not inherited by any child scope.

A PowerShell global variable is a variable that is accessible across all scripts, functions, or cmdlets within the current session.

To declare a PowerShell global variable, you use the $global: prefix before the variable name.

In the following example, the code creates a global variable named $global:TotalUsers:

$global:TotalUsers = 1000

Local variables are limited to the scope in which they are created. They are only accessible within the current script or function. No prefix is needed to declare a local variable.

For instance:

$totalUsers = 1000

In PowerShell, variables can store different types of data, such as strings, integers, arrays, functions, and processes.

The following are some examples of variables with different data types:

Strings: A sequence of characters enclosed in single or double quotation marks.$stringVar = "Hello, world!"

Integers: Whole numbers, both positive and negative.$intVar = 42

Arrays: Collections of objects, where each object can be accessed via an index.$arrayVar = @(1, 2, 3, 4)

Functions: Code blocks that perform a specific task and can be called by their name.function Show-Message { param([string]$message) Write-Output $message }

Processes: System processes that can be managed using PowerShell cmdlets, such as Get-Process.$processVar = Get-Process -Name powershell

When you’re working with PowerShell global variables, remember that they can store any of these data types. They can be accessible across scripts and functions, making them particularly useful for sharing data throughout a session.

In the section above, you learned the basics of a PowerShell Global Variable. We’ll now go over 2 of the most important global variables techniques that you’ll most often use when working with global variables.

Specifically, we’ll go over the following:

Set-Variable Cmdlet

Get-Variable Cmdlet

The Set-Variable cmdlet can also be used to create or modify a global variable. Specifying the -Scope parameter as Global sets the variable at the global scope level.

The following PowerShell Script demonstrates this case:

Set-Variable -Name AppVersion -Value "1.0" -Scope Global

This creates a global variable named AppVersion with the value “1.0”.

To retrieve the value of a global variable, you can use the Get-Variable cmdlet. By specifying the -Scope parameter as Global, it retrieves the value of the variable from the global scope.

For example:

Get-Variable -Name AppName -Scope Global

This returns the value of the AppName global variable, which is “MyApp”.

There are several cmdlets available in PowerShell for you to manage global variables. These are also known as scope modifiers.

We’ve listed some commonly used ones below:

This cmdlet clears the value of a variable. To clear a global variable, you can use the -Scope parameter as Global.

Clear-Variable -Name AppName -Scope Global

This clears the value of the AppName global variable.

This cmdlet removes a variable, effectively deleting it. To remove a global variable, you can use the -Scope parameter as Global.

Remove-Variable -Name AppName -Scope Global

This removes the AppName global variable from the global scope.

This cmdlet can also be used to remove a global variable by specifying the Variable: drive.

Remove-Item -Path Variable:AppName

This removes the AppName global variable.

To create a read-only or constant global variable, you can use the -Option parameter with the Set-Variable cmdlet.

Set-Variable -Name ReadOnlyVar -Value "Read Only" -Scope Global -Option ReadOnly

This creates a read-only global variable named ReadOnlyVar with the value “Read Only”.

Global variables can be helpful in maintaining state or sharing information across scripts and functions. However, it’s important to use them carefully to avoid unintended consequences.

The following are some best practices for using global variables:

Minimize the use of global variables: Use global variables only when necessary, and rely more on local or script-scoped variables.

Choose descriptive names: Use names that clearly indicate the purpose of the variable and avoid naming conflicts.

Initialize your variables: Assign default values to your global variables to avoid accessing uninitialized variables by mistake.

Avoid modifying global variables in functions: Modifying global variables within a function can lead to unexpected behavior. Prefer using parameters or return values to pass information between functions.

Read-Only Global Variables

Aliases and Tab-Completion

Working with PSDrives

Manipulating Hash Tables

PowerShell provides read-only global variables that hold constant values and can be accessed anywhere within your scripts or functions.

They serve as a means to share information throughout the script without the possibility of being modified. Some examples of read-only variables are:

$Host: Provides information about the current PowerShell host.

$PSHome: The path to the root of the PowerShell installation.

These variables cannot be changed, and if you attempt to do so will result in an error.

PowerShell allows you to create aliases for global variables. This helps streamline your code and improves readability.

To create an alias for a global variable, you can use the Set-Alias command, followed by the desired alias name and the variable name.

For instance:

Set-Alias -Name gvMyVar -Value $global:MyVariable

PowerShell also offers tab completion, which can be used to quickly reference global variables and their aliases.

You can simply type the first few characters of the variable name or alias, then use the tab key to cycle through possible completions.

In PowerShell, you can work with global variables as if they are part of a drive called Variable: This is known as a PSDrive.

To access the global variables within the Variable: drive, you can use standard commands such as Get-ChildItem or Set-Location.

The following example will return a list of all the global variables currently available:

Get-ChildItem Variable:

PowerShell’s hash tables can be used as global variables to store and organize data with key-value pairs.

To create a hash table as a global variable, you use the following syntax:

$global:MyHashTable = @{ Key1 = 'Value1' Key2 = 'Value2' Key3 = 'Value3' }

Hash table global variables allow you to access and manipulate values by their associated keys efficiently.

To add or update a key-value pair, you can use the following syntax:

$global:MyHashTable.Key4 = 'Value4'

To remove a key-value pair from the hash table, you use the Remove method:

$global:MyHashTable.Remove('Key1')

Combining hash tables with the global scope functionality allows for efficient data storage and manipulation across your PowerShell scripts and functions.

In this section, you’ll find some frequently asked questions that you may have when working with PowerShell global variables.

To declare a global variable in PowerShell, you can use the $global: prefix followed by the variable name.

For example:

$global:myVariable = "Hello, world!"

This will create a global variable called myVariable with the value “Hello, world!”.

You can modify the value of a global variable by using the $global: prefix followed by the variable name and assigning a new value.

For example:

$global:myVariable = "New value"

This will change the value of myVariable to “New value”.

Variables defined inside a function are local to that function by default, which means they cannot be accessed outside the function.

However, you can use different variable scopes, such as global, script, local, or private, to control the accessibility of a variable. For example:

function Test-Function { $local:myLocalVar = "Local variable" $script:myScriptVar = "Script variable" }

To access a variable outside of a function, you can either declare it with the global or script scope or use a return statement to return the value.

For example:

function Get-MyVariable { $global:myResult = "Global variable value" return $global:myResult } $myVar = Get-MyVariable Write-Host "Variable value: $myVar"

In PowerShell, global variables can be accessed anywhere inside the script, functions, and any cmdlet in the current session.

On the other hand, local variables are limited in scope and can only be accessed within the block in which they are declared (e.g., function, loop, or if statement).

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