IP subnet calculator

7 years ago

Linux - IP subnet calculation with ipcalc ipcalc is a program to perform simple manipulation of IP addresses and is…

Python modify user-agent

7 years ago

How to generate user-agent header for web requests in Python In previous post, we saw how to modify user-agent header…

How to setup IP aliases

7 years ago

Configure IP Aliases in Red Hat / CentOS IP aliasing is a term for assigning multiple IP addresses to a…

How to setup passwordless ssh connection

7 years ago

Setup key based ssh connection The Secure Shell, commonly referred as ssh, is a private-public key scheme used to authenticate…

Common Linux commands for starters

7 years ago

Ten  commonly used Linux commands for beginners 1. id - display information about user. id will print the user and…

Install Ubuntu 18.04 (Bionic Beaver) with kde plasma

7 years ago

How to install  Ubuntu 18.04 LTS (Bionic Beaver) Installation steps for Ubuntu 18.04, code named Bionic Beaver. This steps are for…

Google cloud platform – web hosting

7 years ago

Which product in GCP be the best for your web hosting needs? Read the detailed here. Summary - Google Cloud…

tcpdump: permission denied running as root

7 years ago

Running tcpdump with (-w) option in order to write the raw packets to a file fails with "tcpdump: packets: Permission…

Analyzing network traffic with tcpdump

7 years ago

Capturing network packets with tcpdump Network sniffers such as tcpdump and wireshark, allow users to capture network traffic for diagnosing…

troubleshooting dns – dig tracing

7 years ago

How to troubleshoot dns issues by directly querying name servers This tip will help you troubleshooting DNS issues by directly…