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As reported recently on iDB, Luca Todesco has decided to solve the certification problems which have plagued the most recent Pangu release for 9.2-9.3.3, by making public a web-based tool for re-activating the jailbreak.
After doing some testing and research it seemed appropriate for a more in-depth discussion of the tool, along with a walkthrough, in order to address some of the more technical questions surrounding this latest development in the jailbreaking scene.
Before we go through how to use the tool, here are a few more events which have occurred since its release.
Updates The toolIn terms of the make-up of the tool, some more information has now been confirmed by Todesco. He has said that the exploit used is indeed an implementation of the WebKit bug which formed part of the three zero-day vulnerabilities dubbed Trident. Most likely CVE-2023-4657, the bug allowed a website to be crafted in such a way as to allow arbitrary code execution upon interaction with it. This was utilised in the wild as part of the Pegasus spyware, and was patched in iOS 9.3.5, meaning Todesco’s web exploit works only up to iOS 9.3.4 (more on this later). For more information on this set of bugs, I recommend the write-up from Lookout, one of its discoverers.
One last thing about the tool’s construction is revealed by an inspection of the page’s source code. Here we find its licensing terms and some of the Wu-Tang magic that makes it go:
For those interested in these light-hearted legal stipulations and what exactly the license entails, the full document is available to peruse. As for “Da Mystery of Chessboxin”, your guess is as good as mine.
Requirements
A 64-bit device (iPhone 5s and later) which has previously been jailbroken by the Pangu 9.2-9.3.3 tool.
An internet connection (just the first time around).
How to use1) Ensure your device is in “non-jailbroken mode”, that is, has been rebooted and not re-activated with the Pangu app.
2) Open mobile Safari and visit the following URL:
Please note, this only works in the standalone Safari app, and not in-app browsers. Trying to follow the link via an app (for example Twitter or Reddit) results only in a blank screen.
3) Press the “go” button on the page, and wait whilst the page responds with “doing it”.
4) When the pop-up appears, follow its instructions to dismiss the pop-up, and then press the screen-off/lock button on your device.
5) The device will now become unresponsive whilst it resprings. Please note that this seems to take longer than with the Pangu app, and no Apple logo or respring animation will show while it progresses, so be patient.
6) Once the device has resprung it should be jailbroken again. Verify by checking any of your chosen tweaks are functioning.
7) Open Safari again and revisit the tool’s page. Once on it, press the “Share” button at the bottom of the screen and select “Add to Home Screen”. Pick a name for it and then press “Add” in the top-right. The page is now added as an icon to your Home screen for easier use in future and, as mentioned above, can be used without internet.
Patching the exploit To install the patch1) Launch Cydia and navigate to the “Sources” tab.
2) Hit the “Edit” button in the top-right, and then “Add” in the top-left.
3) In the field which comes up, enter the following repo URL (the same as the one for the exploit webpage):
4) Press the “Add Source” button, to add Todesco’s repository.
5) Once the source has populated, use Cydia’s search tab to look for “jbmepatch”, and select it.
6) On the package page, press “Install” in the top-right, and on the following page touch “Confirm” in the top-right to install.
7) When the installation is complete, press “Restart SpringBoard” to respring and activate the patch.
8) You can test the patch by attempting to use Todesco’s tool again after your device has resprung. It should no longer have any effect.
Remember that the patch can only protect your device whilst it is in its jailbroken state. If you reboot your device you will not be protected by the patch until you re-activate your jailbreak with JailbreakMe or the Pangu app, so be careful which URLs you visit whilst in un-jailbroken mode. Just as the JailbreakMe tool does not work on 32-bit devices, neither does the patch; do not attempt to install it on a 32-bit device.
Future possibilitiesThe other two points of interest are an untether, and 32-bit support. These are clearer. Todesco has stated that both of these are possible; Pangu’s jailbreak can be ported to 32-bit devices, and an untether for the payload injected by his tool could be created. However, he has not confirmed that he is working on either of these things, nor that he has any interest in doing so. We will simply have to wait and see if he or Pangu has the time or inclination to provide them, but I wouldn’t get my hopes up. Interest in supporting 32-bit devices is low and waning, and efforts are bound to be focussed on trying to develop an iOS 10 jailbreak over developing an untether for a now unsigned firmware.
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Galaxy Note 5 Vs Note 4: Details And Spec
Galaxy Note 5 vs Note 4: details and spec-war pre-release
Pitting the Galaxy Note 5 against its most recent predecessor, the Galaxy Note 4, we see a device that gets a rather interesting kick in the specs. While the device’s basic premise doesn’t change – it’s still a big phone with a Samsung-made unique stylus inside – the design gets a reboot. Taking after its closest cousin, the Galaxy S6, the detailing on this smartphone becomes refined. Glass instead of plastic, and a return of the metal rim. Now that the form is moving toward elegance rather than worker-friendly, will Note consumers stay the course?
The Galaxy Note 5 has been tipped to work with a frame that’s ever-so-slightly taller than the device it’ll be revealed alongside: the Galaxy S6 Edge Plus. The Galaxy Note 5 will also appear to be slightly wider than the Edge Plus, but this will mostly be due to the “off the edge” look of the Edge device – they’ll be roughly the same amount of millimeters across.
The specifications you’re seeing here were gathered by SlashGear by a variety of inside (anonymous) sources, leaks, and rumors over the past several weeks. To the best of our (pre-official) knowledge, this is what the Galaxy Note 5 will consist of:
Galaxy Note 5• Display: 5.7-inch 1440×2560 pixel Super AMOLED• Processor: Qualcomm Snapdragon 810 or Samsung Exynos 7422• RAM: 3 or 4GB• Internal Storage: 32, 64, 128GB• Expandable Storage: YES – 128GB*• Battery: 3220 mAh• Front Camera: 8-megapixels, 120-degree wide-angle lens, 1080p video• Back Camera: 16-megapixels (similar/same sensor as Galaxy S6), 1080p 60fps video, 4k video• S Pen: YesGalaxy Note 4• Display: 5.7-inch 1440×2560 pixel Super AMOLED• Processor: Qualcomm Snapdragon 805 or Samsung Exynos 5433• RAM: 3GB• Internal Storage: 32GB• Expandable Storage: 64GB• Battery: 3220 mAh• Front Camera: 3.7-megapixels, 1080p video• Back Camera: 16-megapixels, 1080p 60fps video, 4k video• S Pen: Yes
Unfortunate for those that are super-power-users, it does not appear as though the Galaxy Note 5 will be delivered with expandable storage. Users will have to opt for the 128GB edition or work with cloud storage for massive amounts of data.*
*UPDATE: The newest leak from just this morning suggests that at least one version of the Galaxy Note 5 DOES have a microSD slot, this time able to carry up to 128GB cards!
Release of the Samsung Galaxy Note 5 is rumored to happen on either the 12th or the 13th of August, 2023. That’s just a few weeks from now. There we’ll also likely see information about the Samsung Galaxy S6 Edge Plus as well as the Samsung Gear A smartwatch.
The images you see here are a combination of photos and renderings. The photos are by SlashGear, while the renderings (of the Galaxy Note 5) are by an artist by the name of Ivo Maric. You can see more of Maric’s work via his Instagram at BeeSpline
You can see a variety of bits of additional information about the Samsung Galaxy Note 5 and its potential release in just a few weeks through the timeline you see below. This timeline consists of mainly non-official information, though Samsung’s own website bones have let loose several specs on their own just this week.
Digital Marketing Tutorial: Online Course
What is Digital Marketing?
Digital Marketing is a branch of marketing that mainly involves technologies like internet, computers and mobile phones to promote the products and services online. It is a well-targeted, conversion-oriented and interactive marketing approach to reach the customers and transform them into clients. The purpose of digital marketing is to promote your business online to reach the right audience that can be your customers.
Recent studies show that Digital Marketing is the fastest growing sector in the tech industry. This course is geared to make you a digital marketing pro
In this tutorial, you will learn-
👉 Introduction to Digital Marketing
👉 Search Engine Optimization – SEO Tutorial
👉 Social Media Marketing: Tips and Secret
👉 Online Paid Advertising: Ultimate Guide
👉 Email and Mobile App Marketing
👉 Introduction to Digital MarketingThroughout centuries, marketing always remained customer centric, the way of delivering services and product has changed but the strategies remained same. Technologies did bring revolution in all fields and marketing is no exception, from print media to digital media. The rapid growth of digital marketing is the direct consequence of penetration of internet and social media sites.
Unlike traditional marketing method you don’t have to go door to door to convince people how good your product is, instead the ‘likes’ in Facebook and ‘followers’ in twitter does this job.
Digital Marketing revolves around four things
Social Media : Interact with your customer base using social sites like Facebook and twitter. Use it as a support channel, Launchpad for new products , announce discount and exclusive coupons to drive sales
SEO: SEO or Search engine optimization is a technique that allows a site to get more traffic from search engines like Google, Microsoft, Yahoo etc. It is divided in two categories, off page SEO and on page SEO
Content Marketing: The goal of Content marketing is to retain and attract customers by consistently creating valuable and relevant content with the intention to engage targeted audience in order to drive profitable customer action. Content marketing is valuable for companies as information people find online impacts their purchase decision.
👉 Search Engine Optimization – SEO Tutorial What is SEO?SEO is the process of improving the structure, content and organization of your site to the Search engines can index them correctly. It also involves doing promotional activities to boost your search engine rank
Before we look into this any further, let’s first understand –
How Search Engine Works?Almost every Search engine does the following Spiders or Web Crawling, Indexing & Displaying.
Spiders & Crawlers: Spiders crawl over the web in search of content (Hence the name Spider). Once they finish scanning and identifying the relevant content, they copy the searched content and store it in a search engines database. While they are scanning one web page, they make note of links to other web pages from this page and later scan the linked web pages as well & this process keeps going on for all webpages. (For example : Page A links to Page B which in turn links to Page C. Here, Page A,B,C will be stored as well as any page which is linked from Page C ) .
Web Crawler will collect the following (not limited to) information from a web page –
Indexing: Now that website information is stored in Search Engines Database, how will it know which page to put on top of search results and which on last ? Enter Indexing.
Ranking is done based on keywords.
As the engines crawl and index the contents of pages around the web, they keep track of those pages in keyword based indices. The search engines have millions and millions of smaller databases, each centred on particular keyword term or phrase.
Next question, how does the search engine know which keyword to rank a page for? To determine so the search engine looks into the content of the page, Page Title , Page URL and other factors
Next question, suppose there 20000 Webpages each catering to the same keyword say football. How does the Search Engine determine which Page to display as # 1 , # 2 and so on… Enter Search Engine Ranking Factors which considers Domain Age , Domain Trust , Topicality , Number and relevance of external pointing links to the page , social signals and many more. This will be covered in detailed later in the tutorial
Displaying: The last step in search engine activity is retrieving the best matched results for search queries, which is displaying the search result in browser.
Role of Keywords in SEOKeyword is actually the key to SEO. Keyword is what a person or user enters into a search engine to find specific information.
Keywords form part of a web page’s metadata and help search engines to match page with an appropriate search query.
Keyword Density
Often it is misunderstood that by including more keywords which describe your website can eventually help search engine to bring your website on top. Infact, more keywords sometimes get you penalized for “spamming “or keyword stuffing. So, using keyword wisely from SEO point of view becomes mandatory. So what is the ideal frequency of Keyword? It is believed that for best result, keyword density should be 3-7% for the major and 1-2 % for minor key words.
Keywords in Special places, Page titles & Headings
It is imperative where your keyword exactly appears on your web page. It counts more if you have keywords in the “page title, the headings, the paragraphs” especially in URL. For instance, if your competitor’s web page has same number of keyword as your webpage but if you have included the keywords in your URL then your webpage have more chances to stand out than your competitor.
Placing the keywords in the “Title of the page” or “Heading tags” is considered the best place to put your keywords. The reason behind is that the search engine looks first for the keywords in your “Title tag” and then in “Heading tag”. The standard title tag keyword is around 70 characters max.
In order for a title tag to be most effective, it needs to be supported in other areas of each web page like the “headline”. Your headline should be the largest headline on the page rich with primary keywords, you can also include secondary keywords in your headline. There is no limitation for headline length, but still preferred around 7- 8 words length. For keywords there are some set criteria for best result as shown in table below.
Keywords Criteria for best SEO result
Keywords in URL
First word is best position for keyword in URL
Keywords in Title tag
Keywords should be in beginning of title tags, 10- 60 characters , no special characters
Keywords in description meta tag
Show theme less than 200 characters
Keywords in Keyword meta-tag
Show theme less than 10 words
Keyword density in body text
5- 20 % of the content
Keywords in Headlines
Use Hx font style tags appropriately
Word StemmingSearch engine like Google, uses word stemming for search query. Word stemming allows all forms of the word- singular, plural, verb form as well as similar words for a given search query. For example if someone search for “Mountain track” it will retain search result with all variation of that phrase like “Mountain tracking“, “Mountain trackers” and so on.
Ranking and Ranking factorsMeta-tags: one of the earliest method to optimize the website high in result was to offer Meta data to the search engines. Meta data is nothing but the data about the data found on that page.
There are two important meta-tags or meta-data
Meta description
Meta Keyword
Both Meta keyword and Meta description can contribute to your search engine ranking. The meta description tag is intended to be a brief and concise summary of your page’s content. The limitation for meta-description is about 170- 200 characters, writing a unique description for each page of your site. Meta description format would look something like this
Example: Meta-description for website "guru99" While meta keywords format would look something like this
Example:
Meta-keywords for website “guru99”
Link Building On Page & Off page Optimization
SEO optimization is primarily classified into two sections on page optimization and off page optimization.
Positive Off Page Optimization
Off page SEO is the process of boosting your search engine rankings by getting external links pointing back to it. The more and better links you can get to your webpage, better it will rank in search result
A quality backlink is considered good from the search engines point, and has the maximum effect on your off page SEO. A quality backlink has properties like
Incoming links from high page rank web page
Use different anchor texts
Dofollow or Nofollow links
Getting backlink from similar niche blog or website
Avoid black hat SEO
Good Domain Authority
High Trust
High Relevance in the subject matter of the linking and destination domains
Site Age- Shows site stability
What you should NOT do for Negative off page
Link Buying : If you get caught penalty is huge
Cloaking: Try prevent cloaking (representing different page to search engine than your original web page)
Domain Hi-jacking: It is when someone takes your domain away or misuses your domain without your knowledge by changing the registration of the domain name. Never do this , it’s a criminal offence.
Other Black Hat Techniques
Positive On Page Optimization
On page optimization directly deals with the content and structure of the website. On page optimization focuses on
Unique title tags and Headlines
Keyword frequency in the
URL
Body Texts
Headings
Synonyms
Copywriting
Adding description to images
Good Internal Navigation
What you should not do for Negative On Page
Avoid negative over optimization penalty (OOP) by not repeating keywords very very frequently
Link to a bad neighbourhood : Do not link to link Farms or any other site with bad page rank
Avoid Poison words: The word “link” is considered poison words or stop words in a title tag. There are many other poison words that you should avoid
Avoid stealing text or images from other domains
Avoid Excessive cross linking
For best SEO result for your site always regularly maintain it, as you won’t rank as high in search engines, if your site is slow or has broken links.
Google PandaGoogle panda is a Google’s search results ranking algorithm, it aims to lower the rank of “low quality sites” or “thin sites” and return higher quality sites near the top of the search result. In other words it does the verification of “content” of the websites.
How to escape the Panda’s Claw
Try to avoid link building with those sites which is already ranked as low quality website
Google Penguin
Another algorithm update from Google is “Google Penguin” which penalizes those sites that breach Google’s webmaster guidelines set by the search engines. This programme is specifically designed to target those sites that practice black-hat SEO techniques like keyword stuffing, duplicate content and bulk link building to name a few. Penguin does not damage the site unless spammed for too much keyword.
How to get away from Penguin’s Pecking
Remove all links from guest blogging network
Remove links from spam sites
Remove all exact match anchor links
Remove all optimized anchor links
Nofollow Guest Post links
SEO Audit and Link RemovalSEO Audit and link removal is very important for running your website successfully, as search engine modifies their algorithm from time to time. For success of your website, it is necessary to keep pace with their current guidelines and requirements of search engine. To ignore link audit may put your website at high risk.
For link audits and link removal many online tools are available like, Google webmaster tools, MOZ , Open Site Explorer , Majestic SEO etc. It will scrutinize ‘backlinks’ and provides some helpful metrics like
Specific URLs that link to your site
The pages on your site that each of these URLs link to
Anchor text used by each incoming link
Whether each incoming link is follow or no-follow
While removing low quality links, you have to be careful as some of them may be highly relevant to your website and come from websites on the upswing. In future they might become an important source of traffic.
What are the characteristics of a ‘bad links’
Links with the same anchor text coming from multiple sites
Links from sites that are unrelated to your niche
Links from low traffic and low PR ( Page Rank)
Links from articles directories or sites that look like link farms
Links from link exchanges
Paid links
Links from sites that are not in the Google Index
In case the site owner does not remove bad links from your website, then you can use Google’s disavow tool. This disavow tool will remove bad links.
This disavow tools are applicable in condition like
When you get a manual action
Webmaster won’t remove the bad links to your site or charge you to remove them
When you see links pointing to your site you do not want to be associated with
When you are worried about negative SEO
You see links pointing to your site you do not want to be associated with
You saw a link bomb attack and are afraid it might hurt your site
You are afraid someone will submit a spam report for you
You see your ranking dropped and you think it has to do with an algorithm Google ran, example: Penguin algorithm
👉 Social Media Marketing: Tips and SecretSocial Network Marketing is about using social media sites as marketing tools for the optimization of revenue or increasing brand exposure. Social Media Marketing use strategy like SMO (Social Media Optimization), it can be done in two ways
a) Adding social media links to content such as sharing buttons and RSS feeds
b) Promoting sites through social media by updating tweets, blog post and statuses
Social Media Marketing helps a company get direct feedback from customers, social websites like Twitter, Facebook, Instagram, Myspace, Linkedln and Youtube which have had significant contribution in social marketing in last couple of years. The success of social media in marketing is due to very “Personal” interactions between the user and service renderers.
FaceBook MarketingFace book features are more detailed than other social networking sites. They allow a product to provide photos, videos, longer description option and testimonials as other followers can express their opinion on the product page for others to see. Facebook can link back to the products twitter page as well as send out event reminders. This can be done by connecting to various groups or business groups of your field on Facebook, admin page and direct message to admin for site promotion. You can also create your own personal page where you can upload videos or website information for example, here we have “Guru 99” Facebook page, which has reached many e-learners through Facebook.
Next you can also make a group or join a group of your liking, for example if you are a computer geek and searching for a java computer group then you can join a Java group where you ask questions pertaining to java or share any information related to Java with your group.
To facilitate social media marketing and to manage posting of messages on regular basis on social sites, automated scheduling tools are used. Hootsuite is one such tool, which gives users extended facility for automating and scheduling messages, monitoring conversation and track result across multiple networks. For example, here it is shown how different tutorials are set and scheduled for website Guru99.
Twitter MarketingIt’s a micro blogging service that allows sending and receiving message from customers. This can help business people to contact and communicate with peer group and to their customers. You can create your personal page in twitter as well, and can upload your site and share information related to site on twitter.
Twitter is a great tool to reach out new customers/clients without invading their privacy
LinkedIn MarketingLinkedIn connects professionals from various backgrounds and provides an opportunity to expand business by connecting business professional. Through the use of widgets, members can promote their product or website directly to their clients. “Company Page” is one such feature in linkedin which acts like a business resume for your client to get a quick overview about your business.
Your personalized webpage on linkedin can also be used as an open platform for discussion with peer group or e-learners. Apart from your personalized page there are option like joining groups, companies or any particular professional groups (Doctors, Real estate & Infrastructure, Job portals, business groups etc.)
Recent research has marked Linkedin on top for social referrals to corporate homepages.
LinkedIn: 64% of social referrals to corporate homepage
Facebook: 17% of social referrals to corporate homepage
Twitter: 14% of social referrals to corporate homepage
Google+ plusGoogle plus provides various features which can be used for marketing purposes like
Circles : You can create groups or join circles of your likings
Stream: Gives instant updates on selected contacts or groups
Photos: Upload photos
Sparks: It allows you to specify your area of interest every time you logged in
Plus One: It is like a face book ‘like button’, where you can express your opinion about any particular product
Video Chat and Huddles: All queries can be solved by video chat facility which can be used to facilitate live customer interactions and huddles allow for group chats.
Apart from these you can join communities of your interest, like here guru99 has created community for software testers where they can use these page for discussion for topics of their common interest.
Video PromotionVideo’s are one of the quickest ways to reach your customer. Visual effect has more impact on customer than print or digital text, it enables to explain the product more convincingly than any other medium. Marketing on “Youtube” turns, viewers into fans and, fans into customers. Also with video pages on your site has more chances to get good rating, as there are very less competition for video pages.
To get maximum viewer to your video link, attach the script of your Video. Youtube also provide captioning alternative for videos.
For Intagram Marketing refer this tutorial
👉 Online Paid Advertising: Ultimate GuideSeveral aspects important for successful PPC campaign
First Understand the purpose of PPC campaign
Research on your target audience
Keyword Research
Perform A/B Testing
Learn from your competitors Ad copy before you make your own
Keyword grouping and Organization
Keywords in Ad should include keywords of the landing page
Ad groups creation and Management
Managing your PPC campaign
Once you have created your new campaigns, you have to make sure that they remain active and effective and for that you have to manage your PPC campaign properly
Continuously analysing the performance of your account
Add PPC Keywords and expand the reach of your PPC campaign
To improve campaign relevancy, add non-converting terms as negative keywords
Split up your ad groups into smaller and more relevant groups.
Stop the underperforming keywords
Modify the content and call to actions (CTAs) of your landing pages to align with individual search queries in order to boost conversion rates
Don’t send all your traffic to same page
Example for Bad Ad Example for Good Ad
Hob’s black coffee
Selling coffee since 1947
Come and see our selection
Hob’s great organic black coffee
Refreshing and High quality
Special discount on imported black coffee
Facebook AdOnce you enter your URL to the ad page, the next step will be to upload the image for your ad that you want to display when users look at your ad. Here in the screen shot we had uploaded an image showing “Free Live Selenium Project”.
Once you have uploaded ad image the next step is to identify and target your audience for ad. On ad page you can handle your account as shown in below screen shot and you can target specific audience by narrowing down them according to their location, age, gender, language and so on also you can bid from the same page.
Here, we had chosen country like India, U.S and U.K and we targeted the audience between the age of 19- 24 for our ad and set the rest of category accordingly.
The next step is to set the limit for your ad like how much money you want to spend for your ad and you can set the amount limit accordingly. For instance, we have set the limit Rs 100 per day, then your ad will display on Facebook till your amount becomes nil for the day.
Once everything is set up, you will be proceeded to the most important part and final step of the process, yes you guessed right, money in the bank, as soon as you are done with the payment thing your ad will be reviewed and approved by Facebook group and soon your ad will start displaying on your account.
For the desktop users the ad will display something like this as show in the screen shot below
While for mobile users the ad will display like this, as shown below
Twitter AdTwitter’s Ad Types
Twitter has exceptionally shown its potential in online marketing through promoting Ads and product. Some of these ad types are emphasized over-here.
Promoted hashtags , promoted account, promoted tweet:
Twitter Cards
With Twitter cards, you can attach rich photos, videos and media experience to tweets that drive traffic to your website.
👉 Email and Mobile App MarketingWith the use of internet, e-mail marketing has become more prevalent and common method to reach maximum users with minimum costs. It is a form of direct marketing that uses electronic mail as a means of communication. E-mail marketing is an efficient way to stay connected with the clients and at the same time promoting your business and products. With e-mail marketing you can also track how much percentage of people have shown interest in your product or service. Professional e-mail marketing is considered as a better approach for organized marketing strategy. Here are some benefits for e-mail marketing.
Permission based list building: It is a creation of an email list by providing a sign up box for for prospective e-mail contacts and confirming their approval with a follow up email
Campaign creation: The capability to organize and structure large volumes of e-mail messages by branding, theme and schedule
Online reporting: Track the sending of individual email campaigns and at what rates they were opened and which e-mails are not open or bounced
Rich content Integration: Addition of graphics, video, audio and test using templates,drag and drop editor
List Management: The ability to organize, segment, edit, grow and manage a database of customer or client e-mail contact information
How to implement successful e-mail marketing campaign
There are some simple tips for effective e-mail marketing
To grab the attention of your readers, make sure that your subject line or title should stand out. Need to keep message short and to the point
Your logo needs to be highlighted clearly at the top of the e-mail
Stress first two or three lines of your e-mail to make an impact
Provide link for the landing page on your website
Collect e-mail addresses at offline events like trade shows and import them into your database and send them a welcome email
Promote offers and e-mail sign up through Google plus company page
Automate scheduling for e-mailE-mail schedule can be of great help when one has to mail same document or message to different people on regular basis in bulk. Automation of e-mails are not restricted to sending and receiving mail but also account for other activities like deleting unwanted emails automatically, save e-mail attachments into local folders, e-mail integration with text files or csv and so on. Aweber is one such platform where you can manage and automate your mail and schedule your mail according. As shown in screenshot below, we have schedule each message or tutorial on JavaScript and send to subscribers by scheduling it one after the other.
There are many e-mail service providers which does not have automation scheduling in-built, for them extensions are available and can add on this extension to their mailing system. For example, “Boomerang” which can be used in Google chrome or Firefox for scheduling e-mails. Mail Chimp is another mail manager where you can set data, time , batch delivery and so on for your mail .
Mobile App MarketingWhile building your mobile App there are certain things that needs to be work out
Growing your social media presence : Building a steady social media following on Facebook, Twitter, Google+, Tumblr
Driving engagement across the app: Focus your efforts on encouraging ongoing engagement and keep updating fresh content so to prevent users from losing interest in your app
Increasing app store ratings : Try to improve rating of your app, this will drive a lot traffic to your app
Promo video for mobile APPAs a part of viral marketing campaign, a promo video is quite essential.
Create a promo videos which is short and informative.
Highlight all your app’s key features and point out why your app is better than its competitors
Also, include screen shot of your app as well
Once the video is ready you have to be active in marketing or distributing that video over the web. Post it on forums, use social sites like Facebook and twitter to reach out maximum, upload it to youtube and so on.
In the end, if you create a GREAT mobile app, people will do the marketing for you!. Here, we will see a mobile app for company Guru99.
Web AnalyticsWeb analytics is the study, analyses and reporting of a web data for purposes of understanding and optimizing web usage. This technique is useful to measure how many people have visited a site, and how frequent they have visited the site or what route they have opted to reach your site. Web analytics is very useful from the point of administrator as they can figure it out which area of the site is popular and which area is not.
Web analytics software can be used to monitor whether your site page are working properly or not. There are various web analytics software available in market, some of them are Google Analytics, Adobe site catalyst, IBM coremetrics web analytics, IBM’s Unica Netsight, yahoo marketing dashboard, Piwik, Moz and so on.
A good analytic tool should meet following criteria
Can you re-analyze data if you decide to change something
Can you re-analyze subsets of your logs for more focused views
How many web pages does the solution track per month
What is the total cost of ownership
Does it integrate easily with other sources of data
The Complete Digital Marketing Course
Node.js Tutorial For Beginners: Learn Step By Step In 3 Days
Introduction to Node.js
The modern web application has really come a long way over the years with the introduction of many popular frameworks such as bootstrap, Angular JS, etc. All of these frameworks are based on the popular JavaScript framework.
But when it came to developing server-based applications, there was a kind of void, and this is where chúng tôi came into the picture.
Node.js is also based on the JavaScript framework, but it is used for developing server-based applications. While going through the entire tutorial, we will look into chúng tôi in detail and how we can use it to develop server-based applications.
Node.js Syllabus Node.js Basics for BeginnersNode.js Advance Stuff! Know the Difference! Node.js Interview Questions & Tutorial PDF
👉 Lesson 1 Node.js Interview Questions — Top 25 chúng tôi Interview Questions and Answers
👉 Lesson 2 Node.js Tutorial PDF — Download chúng tôi Tutorial PDF for Beginners
What is Node.js?Node.js is an open-source, cross-platform runtime environment used for the development of server-side web applications. chúng tôi applications are written in JavaScript and can be run on a wide variety of operating systems.
Node.js is based on an event-driven architecture and a non-blocking Input/Output API that is designed to optimize an application’s throughput and scalability for real-time web applications.
Over a long period of time, the framework available for web development were all based on a stateless model. A stateless model is where the data generated in one session (such as information about user settings and events that occurred) is not maintained for usage in the next session with that user.
A lot of work had to be done to maintain the session information between requests for a user. But with chúng tôi there is finally a way for web applications to have real-time two-way connections, where both the client and server can initiate communication, allowing them to exchange data freely.
Why use Node.js?We will have a look into the real worth of chúng tôi in the coming chapters, but what is it that makes this framework so famous. Over the years, most of the applications were based on a stateless request-response framework. In these sort of applications, it is up to the developer to ensure the right code was put in place to ensure the state of web session was maintained while the user was working with the system.
But with chúng tôi web applications, you can now work in real-time and have a 2-way communication. The state is maintained, and either the client or server can start the communication.
Features of Node.jsLet’s look at some of the key features of Node.js
This is quite different from other programming languages. A simple example of this is given in the code below
var fs = require('fs'); fs.readFile("Sample.txt",function(error,data) { console.log("Reading Data completed"); });
The above code snippet looks at reading a file called chúng tôi In other programming languages, the next line of processing would only happen once the entire file is read.
But in the case of chúng tôi the important fraction of code to notice is the declaration of the function (‘function(error,data)’). This is known as a callback function.
So what happens here is that the file reading operation will start in the background. And other processing can happen simultaneously while the file is being read. Once the file read operation is completed, this anonymous function will be called, and the text “Reading Data completed” will be written to the console log.
Node uses the V8 JavaScript Runtime engine, the one which is used by Google Chrome. Node has a wrapper over the JavaScript engine which makes the runtime engine much faster and hence the processing of requests within Node also become faster.
Handling of concurrent requests – Another key functionality of Node is the ability to handle concurrent connections with a very minimal overhead on a single process.
The chúng tôi library uses JavaScript – This is another important aspect of development in chúng tôi A major part of the development community is already well versed in javascript, and hence, development in chúng tôi becomes easier for a developer who knows javascript.
There is an active and vibrant community for the chúng tôi framework. Because of the active community, there are always keys updates made available to the framework. This helps to keep the framework always up-to-date with the latest trends in web development.
Who uses Node.jsNode.js is used by many large companies. Below is a list of a few of them.
Paypal – A lot of sites within Paypal have also started the transition onto Node.js.
LinkedIn – LinkedIn is using chúng tôi to power their Mobile Servers, which powers the iPhone, Android, and Mobile Web products.
Mozilla has implemented chúng tôi to support browser APIs which has half a billion installs.
eBay hosts their HTTP API service in Node.js
When to Use Node.jsNode.js is best for usage in streaming or event-based real-time applications like
Chat applications
Game servers – Fast and high-performance servers that need to processes thousands of requests at a time, then this is an ideal framework.
Good forcollaborative environment – This is good for environments which manage documents. In a document management environment, you will have multiple people who post their documents and do constant changes by checking out and checking in documents. So chúng tôi is good for these environments because the event loop in chúng tôi can be triggered whenever documents are changed in a document managed environment.
Streaming servers – Another ideal scenario to use Node is for multimedia streaming servers wherein clients have request’s to pull different multimedia contents from this server.
Node.js is good when you need high levels of concurrency but less amount of dedicated CPU time.
Best of all, since chúng tôi is built on javascript, it’s best suited when you build client-side applications which are based on the same javascript framework.
When to not use Node.jsNode.js can be used for a lot of applications with various purposes. The only scenario where it should not be used is where there are long processing times, which is required by the application.
Node is structured to be single-threaded. If an application is required to carry out some long-running calculations in the background, it won’t be able to process any other requests. As discussed above, chúng tôi is used best where processing needs less dedicated CPU time.
Mongodb Indexing Tutorial – Createindex(), Dropindex() Example
Indexes are very important in any database, and with MongoDB it’s no different. With the use of Indexes, performing queries in MongoDB becomes more efficient.
If you had a collection with thousands of documents with no indexes, and then you query to find certain documents, then in such case MongoDB would need to scan the entire collection to find the documents. But if you had indexes, MongoDB would use these indexes to limit the number of documents that had to be searched in the collection.
Indexes are special data sets which store a partial part of the collection’s data. Since the data is partial, it becomes easier to read this data. This partial set stores the value of a specific field or a set of fields ordered by the value of the field.
In this tutorial, you will learn –
Understanding Impact of IndexesNow even though from the introduction we have seen that indexes are good for queries, but having too many indexes can slow down other operations such as the Insert, Delete and Update operation.
If there are frequent insert, delete and update operations carried out on documents, then the indexes would need to change that often, which would just be an overhead for the collection.
The below example shows an example of what field values could constitute an index in a collection. An index can either be based on just one field in the collection, or it can be based on multiple fields in the collection.
In the example below, the Employeeid “1” and EmployeeCode “AA” are used to index the documents in the collection. So when a query search is made, these indexes will be used to quickly and efficiently find the required documents in the collection.
So even if the search query is based on the EmployeeCode “AA”, that document would be returned.
How to Create Indexes: createIndex()Creating an Index in MongoDB is done by using the “createIndex” method.
The following example shows how add index to collection. Let’s assume that we have our same Employee collection which has the Field names of “Employeeid” and “EmployeeName”.
db.Employee.createIndex({Employeeid:1})Code Explanation:
The createIndex method is used to create an index based on the “Employeeid” of the document.
The ‘1’ parameter indicates that when the index is created with the “Employeeid” Field values, they should be sorted in ascending order. Please note that this is different from the _id field (The id field is used to uniquely identify each document in the collection) which is created automatically in the collection by MongoDB. The documents will now be sorted as per the Employeeid and not the _id field.
If the command is executed successfully, the following Output will be shown:
Output:
The numIndexesBefore: 1 indicates the number of Field values (The actual fields in the collection) which were there in the indexes before the command was run. Remember that each collection has the _id field which also counts as a Field value to the index. Since the _id index field is part of the collection when it is initially created, the value of numIndexesBefore is 1.
The numIndexesAfter: 2 indicates the number of Field values which were there in the indexes after the command was run.
Here the “ok: 1” output specifies that the operation was successful, and the new index is added to the collection.
The above code shows how to create an index based on one field value, but one can also create an index based on multiple field values.
The following example shows how this can be done;
db.Employee.createIndex({Employeeid:1, EmployeeName:1])Code Explanation:
The createIndex method now takes into account multiple Field values which will now cause the index to be created based on the “Employeeid” and “EmployeeName”. The Employeeid:1 and EmployeeName:1 indicates that the index should be created on these 2 field values with the :1 indicating that it should be in ascending order.
How to Find Indexes: getindexes()Finding an Index in MongoDB is done by using the “getIndexes” method.
The following example shows how this can be done;
db.Employee.getIndexes()Code Explanation:
The getIndexes method is used to find all of the indexes in a collection.
If the command is executed successfully, the following Output will be shown:
Output:
The output returns a document which just shows that there are 2 indexes in the collection which is the _id field, and the other is the Employee id field. The :1 indicates that the field values in the index are created in ascending order.
How to Drop Indexes: dropindex()Removing an Index in MongoDB is done by using the dropIndex method.
The following example shows how this can be done;
db.Employee.dropIndex(Employeeid:1)Code Explanation:
The dropIndex method takes the required Field values which needs to be removed from the Index.
If the command is executed successfully, the following Output will be shown:
Output:
The nIndexesWas: 3 indicates the number of Field values which were there in the indexes before the command was run. Remember that each collection has the _id field which also counts as a Field value to the index.
The ok: 1 output specifies that the operation was successful, and the “Employeeid” field is removed from the index.
To remove all of the indexes at once in the collection, one can use the dropIndexes command.
The following example shows how this can be done.
db.Employee.dropIndex()Code Explanation:
The dropIndexes method will drop all of the indexes except for the _id index.
If the command is executed successfully, the following Output will be shown:
Output:
The nIndexesWas: 2 indicates the number of Field values which were there in the indexes before the command was run.
Remember again that each collection has the _id field which also counts as a Field value to the index, and that will not be removed by MongoDB and that is what this message indicates.
The ok: 1 output specifies that the operation was successful.
Summary
Defining indexes are important for faster and efficient searching of documents in a collection.
Indexes can be created by using the createIndex method. Indexes can be created on just one field or multiple field values.
Indexes can be found by using the getIndexes method.
Indexes can be removed by using the dropIndex for single indexes or dropIndexes for dropping all indexes.
C# Array Tutorial: Create, Declare, Initialize
What is an Arrays in C#?
An array is used to store a collection or series of elements. These elements will be of the same type.
So for example, if you had an array of Integer values, the array could be a collection of values such as [1, 2, 3, 4]. Here the number of elements in the array is 4.
Arrays are useful when you want to store a collection of values of the same type. So instead of declaring a variable for every element, you can just declare one variable.
This variable will point to an array or list of elements, which will be responsible for storing the elements of the array.
Let’s look at how we can work with arrays in C#. In our example, we will declare an array of Integers and work with them accordingly.
Note that all of the below code is being made to the chúng tôi file.
Step 1) Declaring an array – The first step is to declare an array. Let’s see how we can achieve this by the below code example.
Code Explanation:-
The first part is the datatype. It specifies the type of elements used in the array. So in our case, we are creating an array of Integers.
The second part [ ], which specifies the rank of the array. (The rank is a placeholder which specifies the number of elements the array will contain)
Next is the Name of the array which in our case is ‘values’. Note you see a green squiggly underline, don’t worry about that. That is just .Net saying that you have declared an array, but not using it anywhere.
Step 2) The next step is to initialize the array. Here we are going to specify the number of values the array will hold. We are also going to assign values to each element of the array.
Code Explanation:-
First, we are setting the number of elements the array will hold to 3. So in the square brackets, we are saying that the array will hold 3 elements.
Then we are assigning values to each element of the array. We can do this by specifying the variable name + the index position in the chúng tôi values[0] means that we are storing a value in the first position of the array. Similarly to access the second position, we use the notation of values[1] and so on and so forth.
Note: – In Arrays, the index position starts from 0.
Step 3) Let’s now display the individual elements of the array in the Console. Let’s add the below code to achieve this.
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace DemoApplication { class Program { static void Main(string[] args) { Int32[] value; value=new Int32[3]; value[0]=1; value[1]=2; value[2]=3; Console.WriteLine(value[0]); Console.WriteLine(value[1]); Console.WriteLine(value[2]); Console.ReadKey(); } } }Code Explanation:-
This is the simple part wherein we just use the Console.WriteLine method to send each value of the element to the console.
Note that again, we are accessing each element with the help of the array variable name along with the index position.
If the above code is entered properly and the program is executed, the following output will be displayed.
Output:
From the output, you can see all the values of the array being displayed in the Console.
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