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Md. Al Amin Khandaker

Name: Md. Al Amin Khandaker
Address: Dhanmondi, Dhaka, 1209, BD
Telephone: +8801611044706
Price range: Not applicable
Rating: 5

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Alhamdulillah 🤲
(2)

15/03/2026

আপা জিতে গেসি❌
ভাইয়া জিতে গেসি✅

08/03/2026

আলহামদুলিল্লাহ

02/03/2026

যদি হঠাৎ শুনেন চালু হতে যাচ্ছে দুর্গাপুরের বালু ঘাট। আপনার অনুভূতি কেমন হবে বিশেষ করে দুর্গাপুর বাসীর কাছ থেকে জানার আশায় পোস্ট

12/02/2026

১১৬ টা কেন্দ্রের একটাতেও হারেননি প্রথম সংসদ সদস্য হাসনাত আবদুল্লাহ 🔥

অভিনন্দন ভাই! আপনার উপর আমাদের অনেক আশা!
আশা রাখি আপনি বাংলাদেশের রাজনীতিতে পরিবর্তন আনবেন, গরীব, দু:খী মানুষের কথা বলবেন

যেই পরিবর্তনের অপেক্ষায় তাকিয়ে আছে পুরো জাতি ❤️

21/01/2026

🔴 𝗢𝗦𝗜 𝗟𝗮𝘆𝗲𝗿𝘀 & 𝗔𝘁𝘁𝗮𝗰𝗸𝘀 🔴

𝗟𝗮𝘆𝗲𝗿 𝟳 – 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻

➡️ Provides services directly to end-user applications like browsers, email, and APIs.
⚠️ Application Attacks: SQL Injection, XSS, file inclusion, and other application-level exploits.

𝗟𝗮𝘆𝗲𝗿 𝟲 – 𝗣𝗿𝗲𝘀𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻

➡️ Responsible for data formatting, encryption, compression, and translation.
⚠️ Encryption-Related Attacks: SSL/TLS downgrade attacks, weak encryption exploitation.

𝗟𝗮𝘆𝗲𝗿 𝟱 – 𝗦𝗲𝘀𝘀𝗶𝗼𝗻

➡️ Manages session establishment, maintenance, and termination between systems.
⚠️ Session Hijacking: Attackers take over active sessions to impersonate legitimate users.

𝗟𝗮𝘆𝗲𝗿 𝟰 – 𝗧𝗿𝗮𝗻𝘀𝗽𝗼𝗿𝘁

➡️ Ensures reliable or best-effort data delivery using TCP and UDP.
⚠️ Transport-Layer Attacks: TCP SYN floods, UDP floods, and port-based attacks.

𝗟𝗮𝘆𝗲𝗿 𝟯 – 𝗡𝗲𝘁𝘄𝗼𝗿𝗸

➡️ Handles logical addressing and routing of data packets across networks.
⚠️ Network-Layer Attacks: IP spoofing, ICMP abuse, routing manipulation.

𝗟𝗮𝘆𝗲𝗿 𝟮 – 𝗗𝗮𝘁𝗮 𝗟𝗶𝗻𝗸

➡️ Manages MAC addressing and frame delivery within the same network segment.
⚠️ Layer 2 Attacks: ARP spoofing, MAC spoofing, VLAN hopping.

𝗟𝗮𝘆𝗲𝗿 𝟭 – 𝗣𝗵𝘆𝘀𝗶𝗰𝗮𝗹

➡️ Deals with the physical transmission of data through cables, signals, and hardware.
⚠️ Physical Attacks: Cable tapping, hardware tampering, unauthorized physical access.

For Daily Security Updates, Follow: Md. Al Amin Khandaker

21/01/2026

🔌 𝗧𝗲𝗰𝗵 𝗘𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻: 𝗧𝗵𝗲 𝗛𝗶𝘀𝘁𝗼𝗿𝘆 𝗼𝗳 𝗣𝗼𝗿𝘁𝘀 🖥️

Check out this blast from the past! A visual guide to the various computer ports that have come and gone. From the classic PS/2 to the future-ready USB-C, we've seen a lot of innovation over the years.
It’s fascinating how technology evolves, and these ports tell the story of how data transfer, audio/video output, and network connectivity have changed the way we interact with devices.
Which one of these ports do you remember using the most? Have you still got some of these in your collection?

🔔 Follow Md. Al Amin Khandaker for more cybersecurity tips!

Address

Dhanmondi
Dhaka
1209

Telephone

+8801611044706

Website

facebook.com

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