World Wide Web Fundamentals
Web Page:
Combination of text, images, audios and videos(content)
Website:
one or more web pages
Web App:
website for a specific purpose like gmail is for email and wahtsapp is for messaging
Domain:
internet name of company
agt is comapny name and its internet name is agt.edu.pk
IP:
computer in a network communicates with a number called IP.
192.168.1.1
URL:
uniform resource locator
http://www.agt.edu.pk/students/result.html?name=uzair&gpa=B
http:
hyper text transfer protocol
it is used to send and receive web pages information
www:
world wide web
agt:
name of company
edu:
type of company
com for commerical
org for non profit organzation
gov for govt websites
pk:
country domain
for US sites we do use .us
gmail.com is not gmail.com.us
students:
it is directory name on the web server computer
result:
it is file name
.html:
it is file extension
Query String:
the part of url after ? sign is querystring
it is name value pair
name is name
value is uzair
name is gpa
value is B
Hosting:
after design and development we copy our web pages from our local computer to some remote 24×7 live computer with Filezilla FTP client
FTP:
file transfer protocol
it is used to send and receive files on internet
SMTP:
Simple Mail Transfer Protocol
it is used to send and receive email on internet
Ports:
HTTP: 80
HTTPS:443
SMTP:25
FTP:21
Cpanel:
it is a website used by 80% hosting companies. We manage our websites domains, files, mails, databases with this website cpanel. When you buy a hosting from any company in the world they will email you the cpanel information in which you have users and password about your website.
You put this information in FileZilla Client and connect to live server and upload pages to live server.
The information look like following
START OF EMAIL
**Subject: Your Hosting Account Details – Welcome to BlueSky Hosting!**
Dear John Doe,
Congratulations on your purchase of hosting with BlueSky Hosting! We’re excited to have you on board, and we’re here to help you get started with your web hosting journey.
Below are the details of your hosting account:
**cPanel Login Information:**
– URL: https://cpanel.blueskyhosting.com
– Username: john_doe123
– Password: P@ssw0rd123
**FTP Access Details:**
– FTP Server: ftp.blueskyhosting.com
– FTP Username: john_doe123
– FTP Password: FTP@Access123
– FTP Port: 21 (Default)
**Hosting Package Information:**
– Package Name: Starter Plan
– Disk Space: 5GB
– Bandwidth: Unlimited
– Email Accounts: 10
– Subdomains: 5
– Addon Domains: 1
– Parked Domains: 2
– MySQL Databases: 2
**Additional Information:**
– Nameservers:
– ns1.blueskyhosting.com
– ns2.blueskyhosting.com
– Support: If you have any questions or need assistance, our support team is available 24/7 via support@blueskyhosting.com.
**Getting Started:**
1. Log in to your cPanel account using the provided URL, username, and password.
2. Use FTP to upload your website files to the server.
3. Configure your domain’s DNS settings to point to our nameservers.
4. Start building your website and explore the features available in cPanel.
Thank you for choosing BlueSky Hosting as your web hosting partner. We’re committed to providing you with reliable hosting services and excellent support to help you succeed online.
Best regards,
The BlueSky Hosting Team
END OF EMAIL
Free Web Servers:
For testing our website we use free web hsoting servers like wix.com
The problem is if they stop services then you will loose your information, there is no backup.
Paid Web Servers:
There are two types: Cloud Hosting and Cpanel Hosting
Cloud Hosting:
There are thousands of computers with ultra large disk and memory in one place called data center. Hosting companies buy disk space from these data centers and sell to customers. We buy disk space from hosting companies on cheaper rates.
The No.1 largest data center of the world is Amazon Web Services (AWS). Google, IBM, Orcale and Facebook has their own data centers. Our emails in our gmail account are stored on google data center. It is called cloud computing.
Search on google for cloud computing, it is future of data in It field.
Shared Hosting:
many websites run on one computer server
advantage:
it is low cost
disadvantage:
if there is one critical error on one website then all others go down
Cost:3000-5000PKR/year
Dedicated Server:
a company buys whole server for its website
Cost:
80,000+PKR/month
Domain Cost:
500-3000 PKR/year