Network Troubleshooting Tools

ping

Sends ICMP echo request, displays time and TTL.

traceroute

Traces IP packet route, shows hops and times.

tracepath

Displays path from source to destination.

ipconfig

Provides IP, subnet mask, gateway info on Windows.

ifconfig

Configures network interfaces on Linux.

arp

Maps IP to MAC addresses in ARP cache.

netstat

Displays network adapter and port info.

nslookup

Troubleshoots DNS, displays name to IP mappings.

dig

Queries DNS servers, troubleshoots DNS.

whois

Looks up domain or IP address ownership.

route

Displays or modifies route tables on hosts.

scp

Securely copies files between servers using SSH.

ftp

Copies files unencrypted between hosts.

tftp

Transfers files using UDP on local networks.

finger

Displays user info on remote systems.

nmap

Scans networks to find hosts and open ports.

tcpdump

Displays transmitted packets for troubleshooting.

telnet

Allows remote management unencrypted.

ssh

Securely manages accounts and devices remotely.

cat

Creates, views, concatenates files in terminal.