Skip to main content

What is a POP

 

POP (Post Office Protocol) ek email protocol hai jo emails ko server se download karne aur local device (jaise computer ya phone) pe store karne ke liye use hota hai.

 

POP Ka Kaam Kaise Karta Hai?

 

1. Email Download: Jab aap apne email client (jaise Outlook, Thunderbird) par POP set up karte hain, to aapka email client server se emails ko download kar leta hai.

  

2. Server Se Deletion: Default POP setting mein, jab emails aapke device par download ho jate hain, to wo server se delete ho jate hain. Matlab server pe aapke emails nahi rehte, wo aapke local device pe store ho jate hain.

 

3. Single Device Access: POP ko use karte waqt aap sirf ek device se emails access kar sakte hain. Agar aap ne email apne computer pe download kar liya, to wo doosre device (jaise mobile) par available nahi hota.

 

POP Ki Example:

 

Maan lijiye aapne apne email account ko POP ke zariye apne computer pe configure kiya hai:

 

 Jab aap apne email client (Outlook) ko open karte hain, to server se sab emails download ho jate hain aur aapke computer pe stored ho jate hain.

Jab email download ho jata hai, to wo server se delete ho jata hai. Agar aap mobile pe apna email check karenge, to wo emails aapko wahan nahi milenge, kyunki wo server se delete ho chuki hoti hain.

 

IMAP vs POP:

IMAP: Emails server par stored rehte hain aur multiple devices se access kiye ja sakte hain.

POP: Emails device pe download ho jate hain aur server se delete ho jate hain. Aap sirf ek device se emails access kar sakte hain.

 

Ports:

Port 110: Default port for POP (unencrypted).

Port 995: Secure POP (SSL connection).

 

Summary:

POP ek email protocol hai jo emails ko server se download karne aur local device par store karne ke liye use hota hai. Ismein emails server se delete ho jate hain aur multiple devices se access nahi kiye ja sakte. Agar aapko multiple devices se emails manage karni ho, to IMAP behtar hai.


Comments

Post a Comment

Popular posts from this blog

TCP/IP MODEL

  HISTORY OF TCP/IP MODEL THE TCP/IP MODEL WAS DEVELOPED BY VINT CERF AND BOB KAHN IN THE 1970S. THEY WERE BOTH WORKING AT THE DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) AT THE TIME. Vint Cerf And Bob Kahn CERF AND KAHN WERE TASKED WITH DEVELOPING A NEW NETWORK PROTOCOL THAT WOULD BE MORE RELIABLE AND EFFICIENT THAN THE EXISTING PROTOCOLS. THEY CAME UP WITH THE IDEA OF USING A LAYERED APPROACH, WHICH WOULD ALLOW EACH LAYER TO FOCUS ON A SPECIFIC TASK. THIS LED TO THE DEVELOPMENT OF THE TCP/IP MODEL, WHICH IS STILL THE BASIS FOR HOW DATA IS TRANSMITTED OVER THE INTERNET TODAY. CERF AND KAHN ARE OFTEN REFERRED TO AS THE "FATHERS OF THE INTERNET" FOR THEIR WORK ON THE TCP/IP MODEL. THEY WERE INDUCTED INTO THE NATIONAL INVENTORS HALL OF FAME IN 2004 FOR THEIR CONTRIBUTIONS TO THE DEVELOPMENT OF THE INTERNET. HERE ARE SOME OTHER NOTABLE PEOPLE WHO CONTRIBUTED TO THE DEVELOPMENT OF THE TCP/IP MODEL: JON POSTEL: POSTEL WAS THE FIRST CHAIRMAN OF THE INTERNET ENGINEERI...
Post a Comment
Read more

Types Of Attack in Network

Common Network Attacks Explained. 1. Overwhelming a Network (DoS/DDoS): Imagine a restaurant that's flooded with too many customers. In a DoS/DDoS attack: A website is overwhelmed with too much traffic. 2. Eavesdropping on Conversations (MitM): Imagine someone listening in on your phone call. In a MitM attack: An attacker listens to your online conversations. 3. Tricking You (Phishing): Imagine receiving a fake email from your bank. In phishing: Attackers try to trick you into giving them your personal information. 4. Finding a Weakness in a Website (SQL Injection): Imagine finding a hole in a fence. In an SQL injection attack: An attacker finds a weakness in a website to steal or change data. 5. Planting a Hidden Camera (XSS): Imagine someone hiding a camera in a party. In an XSS attack: An attacker hides harmful code on a website to spy on you. 6. Guessing Your Password (Password Attck): Imagine trying to guess a friend's password. In a pas...
Post a Comment
Read more

OSI Refrance Model

OSI MODEL 1. THE OSI MODEL WAS DEVELOPED BY THE INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) IN THE LATE 1970S. THE MAIN ARCHITECT OF THE OSI MODEL WAS HUBERT ZIMMERMANN, A FRENCH SOFTWARE ENGINEER. 2.  ISO REPRESENT A 1947 MORE THAN WORK AND AGAIN REPRESENTS A ISO IN 1977 AND MORE THAN WORK AN REPRESENT  IN 1983 A OSI REDFRENCE MODEL. 2. HIS MODEL REPRESENT A 7 LAYER 3. OSI MEANS  (OPEN SYSTEMS INTERCOMMUNICATIO). 1. APPLICATION LAYER 1. THE APPLICATION LAYER IS USED BY END-USER SOFTWARE SUCH AS WEB BROWSERS AND EMAIL CLIENTS.  IT PROVIDES PROTOCOLS THAT ALLOW SOFTWARE TO SEND AND RECEIVE INFORMATION AND PRESENT MEANINGFUL DATA TO USERS. 2.  IT SENDS ITS DATA TO THE FORM OF THE  PDU. PROTOCLS  AND DEVICES USED IN LAYER THERE ARE SOME PROTOCOLS THAT WORK AT THE BACKEND OF THE APPLICATION LAYER. WHICH IN TURN WORKS AT THE APPLICATION LAYER. MANY DEVICES USE IT AT THE APPLICATION LAYER. PROTOCOLS FTP  (FILE TRANSOFER PROTOCOL) DNS (DOMA...
Post a Comment
Read more