PollyBD Networking Blogspot

Why an Engineer is Essential for an Internet Service Provider (ISP) Why an Engineer is Essential for an Internet Service Provider (ISP), In today’s digitally-driven world, the demand for fast, reliable, and secure internet has never been higher. Whether for business operations, education, entertainment, or communication, internet connectivity is now a basic necessity. Behind the scenes of every successful Internet Service …

UPSTREAM VLAN + BGP CONFIGURATION JUNIPER ROUTER STEP BY STEP UPSTREAM VLAN + BGP CONFIGURATION JUNIPER ROUTER STEP-BY-STEP , Here’s how to configure a Juniper router for an upstream connection using VLAN and BGP. This is commonly used for connecting to an ISP or a data center uplink with a VLAN tag and establishing BGP peering. 📘 Use Case Example …

BGP on MikroTik   bgp on mikrotik, To add a BGP peer in a MikroTik router, follow these steps: ✅ Step 1: Enable BGP on MikroTik Before adding a BGP peer, ensure BGP is enabled: /routing bgp instance set default as=<YOUR_AS_NUMBER> router-id=<YOUR_ROUTER_ID> AS Number: Your autonomous system number (e.g., 65001) Router ID: Typically the highest IP on the router (e.g., …

Configure NTP Client In Mikrotik, MikroTik রাউটারে NTP (Network Time Protocol) ক্লায়েন্ট সেটআপ করার মাধ্যমে আপনি রাউটারের সময় স্বয়ংক্রিয়ভাবে সঠিক রাখতে পারেন। নিচে স্টেপ-বাই-স্টেপ গাইড দেওয়া হলো: Step 1: Winbox দিয়ে MikroTik-এ লগইন করুন MikroTik রাউটারের সাথে Winbox সফটওয়্যার ব্যবহার করে কানেক্ট করুন। লগইন করার পর System > SNTP Client মেনুতে যান। Step 2: NTP Client Enable করুন Enabled অপশনটি …

Failover Configuration In BDCOM Switch Or OLT Failover Configuration In BDCOM Switch Or OLT, This configuration sets up Active-Backup Link Protection on a BDCOM switch, ensuring automatic failover between two uplinks. Let me break it down for you: 1. Backup Link Group Configuration backup-link-group 1 preemption-mode forced delay 3 backup-link-group 1 → Defines a backup link group (ID: 1). preemption-mode …

MikroTik’s Firewall Filter Rules MikroTik’s firewall filter rules allow you to control traffic passing through your router. These rules are processed in the Firewall Filter section of IP > Firewall and help in securing networks by blocking or allowing specific traffic. Firewall Filter Basics Filter rules work in a chain-based manner. The three main chains are: Input – Handles traffic …

Reduce Hiberfil.sys Size In Windows Reduce Hiberfil.sys Size In Windows, The hiberfil.sys file is used for hibernation in Windows and can take up a significant amount of disk space. You can reduce or disable it using the following methods: Method 1: Reduce Hiberfil.sys Size Open Command Prompt as Administrator: Press Win + R, type cmd, and press Ctrl + Shift …

IF YOU CAN’T UPLOAD FILE IN UBUNTU If you can’t upload a file to a bind-mounted folder in Ubuntu, here are some common causes and solutions: 1. Check Permissions Run: ls -ld /path/to/bind/folder If you don’t have write permissions, change the ownership: sudo chown -R $USER:$USER /path/to/bind/folder Or give write permissions: sudo chmod -R 777 /path/to/bind/folder # (Use cautiously) 2. …