- How to Scan for mDNS/DNS-SD services published on the local network using mdns-scan command ?
- How to identify IP Address’s of all devices in a network ?
- Identify which application / process is using which port or keeping it busy on android / Linux
- How to check IP address, network interface details in Linux ?
- How to get mac-id using ipaddress in Linux
- C program to read mac address using WiFi interface name
- How to disable and / or enable ICMP ping from Linux host ?
- How to get all the details of a device using IP address in Linux/Ubuntu
- Checking own IP, ports open, DNS and ping of host / website
- How to identify Http request and response header online ?
- How to resolve : getaddrinfo: new-hostname No address associated with hostname
- How to Install Apache Tomcat on Ubuntu
- Understanding ARP (Address Resolution Protocol) basics
- Sending ARP request and receiving ARP Reply using C code
Commands, Scripts
WiFi / Wireless
- Wi-Fi Initial Communication between device and access point
- How to Connect to WiFi Access Point from command line in Linux using nmcli
- Scan and display all available wireless / wifi networks on ubuntu platforms
- iwlist – Get detailed information from a wireless interface
- C program to read mac address using WiFi interface name
Socket Programming
- Send and Receive (Transfer) integer over socket using C program
- Writing TCP server and client socket programs in JAVA
- Sending and receiving message as part of DatagramPacket using JAVA DatagramSocket ( JAVA DatagramSocket Client and Server Example )
- Sending and receiving data from user space and kernel using Netlink sockets / Communicating between the kernel and user-space in Linux using Netlink sockets
- Listening on specific port number using netcat to receive http POST messages
- Send data using http POST from client and receive response from server using netcat over specific port
Network programming
- Go program to display IP address details of a network interface using interface name
- Go Program : Identify total number of network interfaces and display the details using index
- Print details of network interface ( IP address, mac, status etc ) using go language program
Network Packet Capture
- Simple wifi packet sniffer to capture every packet received on wlan0 interface
- WiFi monitor mode and commands to enforce monitor mode in Linux / Ubuntu
- sniffex – C program to Capture wifi packets using libpcap
- Shell script for switching wifi channel using hopping
- Understanding wireless beacon packet ( captured using pcap API’s )
- Understanding pcap file format – part I – Global Header
- How to capture and analyse network packets using tcpdump and tshark at command line ?
