Networking with Israr

Basic Network Device Types – Start Strong in Networking!.

If you're stepping into the world of networking, these are the fundamentals you must understand 👇

🔹 Router – Connects different networks
🔹 Switch – Connects devices within a LAN
🔹 Hub – Broadcasts data to all devices
🔹 Bridge – Connects network segments
🔹 Server – Provides services & resources
🔹 Ethernet Cables – The backbone of connectivity

Remember: Every advanced network is built on these basic components. Master them, and you're already ahead!

🎯 Whether you're preparing for CCNA, starting your IT journey, or just curious about networking — this is your foundation.

👉 Quick Question:
Which device do you think is the most important in a network setup?

Comment your answer below ⬇️

FORTIGATE FIREWALL — COMPLETE REAL-WORLD LAB (FROM ZERO TO PRO)!

This is NOT theory.
This is NOT copy-paste commands.

This is a full FortiGate Firewall hands-on lab every Network Engineer, SOC analyst, and IT student must understand 👇

✅ Import FortiGate VM in VMware
✅ Configure virtual network adapters correctly
✅ Assign Management IP via CLI
✅ Understand ports, interfaces & access methods
✅ Verify connectivity using ping
✅ Access FortiGate GUI step-by-step
✅ Learn how real firewalls work in production networks

🔹 If you can do this lab confidently:
☑️ You understand firewall basics
☑️ You can work in NOC / SOC environments
☑️ You’re ready for real network troubleshooting
☑️ Interviews become MUCH easier

👉 This is the kind of post you SAVE, not just like
👉 Share it with someone learning Networking / Cybersecurity

👉 Comment “FORTIGATE” if you want this as a clean step-by-step PDF

➡️ Learn skills that companies actually pay for

Networking Quiz?

DHCP server is in VLAN 10.
Clients in VLAN 20 aren’t getting IPs.

👉 What is most likely missing?

a) DNS
b) Trunk link
c) ip helper-address
d) STP

Essential Windows Network Commands Every IT Professional Should Know!

When the network breaks, guessing won’t fix it — commands will.
These Windows networking commands are your first line of defense for troubleshooting, monitoring, and fixing connectivity issues.

🔹 Check IP & Network Details
ipconfig | ipconfig /all
👉 Instantly view IP address, gateway, DNS, and adapter details

🔹 Fix Common Network Issues
ipconfig /release
ipconfig /renew
ipconfig /flushdns
👉 Resolve IP conflicts and DNS-related problems in seconds

🔹 Test Connectivity & Routes
ping | tracert
👉 Identify packet loss, latency, and routing issues

🔹 DNS & Connection Analysis
nslookup | netstat -an
👉 Inspect DNS responses and active network connections

🔹 MAC, ARP & System Info
arp -a | getmac | hostname
👉 Understand device identity at both logical and physical layers

🔹 Network Sharing & Services
net use | net share | net start | net stop
👉 Manage shared resources and Windows services

🔹 Advanced Configuration
netsh
👉 Configure interfaces, firewalls, and advanced network settings

Mastering these commands saves time, boosts confidence, and makes you stand out in interviews, labs, and real-world troubleshooting.

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Master VLANs in Minutes!

Ever wondered how to segment your network for better security and efficiency?
It’s simple with VLAN configuration on Cisco switches.

🔹 Step 1: Create a VLAN

Switch(config) # vlan 20
Switch(config-vlan) # name IT Department
Switch(config-vlan) # exit

🔹 Step 2: Assign VLAN to a Port

Switch(config) # interface gigabitEthernet 0/1
Switch(config-if) # switchport mode access
Switch(config-if) # switchport access vlan 20

✅ That’s it! Your port is now part of VLAN 20 (IT Department).

VLANs = Better security, traffic management, and network performance.

Network Engineers’ Secret Weapon — Cisco CLI Master Guide!

If someone still not get the PDF comment "PDF" I'll share with you.

OSI Model — The Foundation Every Network Engineer Must Master!

Understanding the 7 OSI layers makes troubleshooting easier, improves protocol knowledge, and helps you think like a real network engineer. From Physical cables to Application services, everything in networking follows these concepts.

👉 💬 Quick Challenge (No Googling 😅):
Can you name all 7 OSI layers in order?

Comment your answer below 👇 Let’s see who remembers them correctly!

📌 Save this for revision
🔄 Share with a CCNA students

Master DNS Like a Pro — From Basics to Advanced Records!

If you still think DNS is just “name to IP”… you’re missing the real power behind the internet.

🔹 This complete PDF covers:
✅ How DNS actually works (step-by-step resolution)
✅ Root, TLD, Recursive & Authoritative servers
✅ All important records (A, AAAA, CNAME, MX, TXT, PTR, SOA, NS)
✅ Real examples you can understand easily
✅ Interview & CCNA-level concepts

Perfect for Networking, System Admin, Cybersecurity & IT students.

📩 Comment "DNS" and I’ll share the PDF with you.
🔁 Share with your IT friends — knowledge grows when shared!

Networking Quiz?

IT department needs a subnet supporting 60 hosts.

👉 Which subnet mask should be assigned?

a) 255.255.255.224
b) 255.255.255.192
c) 255.255.255.240
d) 255.255.255.248