Protocol analyzer, Software that captures data packets traveling over a network. It allows for detailed analysis of network traffic to identify issues, monitor performance, and ensure secure data transmission., ping, Sends ICMP echo requests to a target host to test connectivity and measure round-trip time for messages sent to the target device., Traceroute/tracert, Traces the path packets take from the source to the destination, showing each hop along the route, traceroute is used on Unix/Linux, and tracert on Windows., Nslookup, Queries DNS servers to find the IP address associated with a hostname (nslookup) or to get DNS information about a domain (dig)., Tcpdump, A powerful command-line packet analyzer; it captures or filters TCP/IP packets that are received or transmitted over a network., Dig, Domain Information Groper) is a powerful command-line tool used for querying DNS (Domain) Name System) servers. Retrieves detailed information about DNS records, such as A, AAAA, CNAME, MX, and NS records., Netstat, Displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics, Ip/ifconfig/ipconfig, Displays or configures the network configuration of a device. ipconfig is used on Windows, ifconfig on older Unix/Linux systems, and ip on modern Linux systems., Arp, Displays or modifies the IP-to-MAC address translation tables used by the Address Resolution Protocol (ARP)., Nmap, A network scanning tool that discovers devices and services on a network by sending packets and analyzing the responses., Link layer discovery protocol (LLDP)/ Cisco discovery protocol (CDP), are network discovery protocols used to exchange information about devices on the same network., speed tester, is a tool used to measure the performance of a network connection by testing the upload and download speeds.

5.5 Software tools

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