Heng Kimsreng

Heng Kimsreng ខ្ញុំបាទមានទទួល Sponsor លេខ ទំនាក់ទំនង 070 879 545

AI ថ្មីរបស់ Google បានដាក់ដំណើរការអោយប្រើប្រាស់ តោះសាកប្រើទាំងអស់គ្នា
11/25/2025

AI ថ្មីរបស់ Google បានដាក់ដំណើរការអោយប្រើប្រាស់ តោះសាកប្រើទាំងអស់គ្នា

Command ប្រើប្រចាំថ្ងៃ សម្រាប់ IT
11/25/2025

Command ប្រើប្រចាំថ្ងៃ សម្រាប់ IT

ភាពខុសគ្នា Access Port vs Trunk Port
11/24/2025

ភាពខុសគ្នា Access Port vs Trunk Port

1. The Main Gate: The Firewall​The Structure: The big archway labeled FIREWALL is the main gate.​What it does: The firew...
11/21/2025

1. The Main Gate: The Firewall

​The Structure: The big archway labeled FIREWALL is the main gate.
​What it does: The firewall is the fundamental bouncer or guardhouse. Its job is to control all traffic coming into and leaving the network. It's the first line of defense.

​2. The Entry Requirements: IP Address & ACL
​For any "vehicle" (data packet) to pass the gate, it needs to be checked:
​IP ADDRESS (The License Plate): Every car has a license plate; every device on the internet has an IP address. The firewall checks if this plate is on the list of approved visitors.

​ACL (The Bouncer's Clipboard): This stands for Access Control List. The soldier holding the clipboard is checking the ACL. This list specifies:
​Who (which IP address) is allowed in?
​What (which type of traffic or service they are allowed to access).
​If the car doesn't meet the rules on the ACL, the boom barrier stays down.

​3. The Watchful Eyes: IDS and IPS
​If the traffic is allowed to pass the initial check, two advanced security systems monitor it closely:
​IDS (Intrusion Detection System—The Security Camera): The camera on top is the IDS.

🔹 Access Port vs Trunk Port — The Foundation of Every Network Engineer’s Skillset 🌐If you’ve ever configured VLANs, you’...
11/17/2025

🔹 Access Port vs Trunk Port — The Foundation of Every Network Engineer’s Skillset 🌐
If you’ve ever configured VLANs, you’ve already worked with Access and Trunk ports — but truly understanding how they differ is what separates a beginner from a professional.

🔸Access Port:
Used to connect end devices like PCs, printers, or IP phones to a single VLAN.
Think of it as a dedicated lane for one type of traffic.

🔸Trunk Port:
Connects switches or routers, carrying multiple VLANs using tagging (802.1Q).
It’s the highway that moves multiple traffic streams efficiently.

In modern enterprise setups, mastering VLANs, trunking, and inter-VLAN communication is essential for CCNA, CCNP, and Network Security Engineers aiming to design scalable and secure architectures.

Is Wi-Fi 7 really worth the upgrade? That depends on what’s running your network behind the scenes.Wi-Fi 7 can hit some ...
11/11/2025

Is Wi-Fi 7 really worth the upgrade? That depends on what’s running your network behind the scenes.

Wi-Fi 7 can hit some serious speeds, usually around 10 to 20 Gbps and, in perfect conditions, up to 46 Gbps. But you’ll only see those numbers if the rest of your network can keep up.

If your cabling and switches are still stuck at gigabit speeds, even the best Wi-Fi 7 access points won’t make much difference. To actually unlock those faster speeds, you’ll need multi-gig switches and Cat6A (or better) cabling.

Before you spend on new gear, take a look at what you already have. If your infrastructure isn’t ready, that upgrade could end up being more hype than help.

🔧 VLAN Configuration Made Simple — Cisco CLI Guide At Networking with Khalid, we believe in empowering learners with cle...
11/08/2025

🔧 VLAN Configuration Made Simple — Cisco CLI Guide
At Networking with Khalid, we believe in empowering learners with clear, bilingual resources. This visual breaks down the essentials of VLAN setup on Cisco switches — a core skill for CCNA aspirants and network engineers.

✅ Create VLANs
Define your network segments with meaningful names like HR and Finance using CLI commands.

✅ Assign Access Ports
Map physical interfaces (e.g., Fa0/1, Fa0/2) to specific VLANs for traffic isolation and control.

💡 Whether you're prepping for certification or deploying real-world networks, mastering VLANs is foundational.

VLAN Configuration Made Visual | Networking with Khalid 🇵🇰Ever wondered how VLANs are assigned on a Cisco switch? This v...
11/08/2025

VLAN Configuration Made Visual | Networking with Khalid 🇵🇰

Ever wondered how VLANs are assigned on a Cisco switch? This visual breaks it down step-by-step:

🟢 VLAN 20 (Sales) → Ports Fa0/1 to Fa0/8
🔵 VLAN 40 (Marketing) → Ports Fa0/9 to Fa0/16
✨ Glowing brackets show clear segmentation—perfect for beginners and visual learners.

📟 Below the switch, we’ve embedded the actual Cisco IOS commands used to configure VLANs and assign ports. Notice the mismatch in the last command (vlan 30)—a great reminder to double-check your configs!

💡 Tip: Always verify port ranges and VLAN IDs to avoid misrouting traffic.

Cisco Router Configuration – Key Concepts for Network EngineersA Cisco router plays a vital role in connecting networks,...
11/07/2025

Cisco Router Configuration – Key Concepts for Network Engineers

A Cisco router plays a vital role in connecting networks, routing traffic, and enforcing security. For every CCNA learner or network professional, mastering router configuration is an essential skill.

Here’s a quick overview of the core configurations every engineer should know 👇

🔹 Basic Configuration
Set hostname, secure passwords, encrypt credentials, and enable SSH for secure remote access.

🔹 Router Interfaces
Assign IP addresses and bring interfaces up to establish LAN and WAN connectivity.

🔹 Router-on-a-Stick (Inter-VLAN Routing)
Use sub-interfaces to route traffic between VLANs over a single physical link — essential for inter-VLAN communication.

🔹 Routing Protocols
Implement Static Routes for small networks or use RIP, OSPF, and EIGRP for dynamic, scalable routing.

🔹 Access Control Lists (ACLs)
Filter traffic, control access, and strengthen network security with precise permit/deny rules.

🔹 DHCP & Relay
Use the router as a DHCP server or configure it as a DHCP relay to forward client requests to a central server.

🔹 Network Address Translation (NAT)
Translate private IP addresses to public for secure internet access — using static, dynamic, or PAT configurations.

✅ Always verify configurations
Check interfaces, routing tables, ACLs, NAT translations, and DHCP bindings to ensure optimal performance.
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#លិឍដៃ
07/01/2025


#លិឍដៃ

ជួបមុខគ្នារៀននិយាយពាក្យល្អៗដាក់គ្នាឱ្យច្រើន!
06/30/2025

ជួបមុខគ្នារៀននិយាយពាក្យល្អៗដាក់គ្នាឱ្យច្រើន!

06/17/2025

អាតៃចង្រៃ🇹🇭🇹🇭f***🤭 Diss អ្នកជិតខាង

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