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Julia Evans's every linux networking tool I know
ping - are these computers even connectedcurl - make any http request you wanthttpie - like curl but easierwget - download filestc - on a linux router slow down your brother’s internet (and much more)dig / nslookup - what’s the IP for that domainwhois - is this domain registeredssh - secure shellscp - copy files over sshrsync - copy only changed filesngrep - grep for your networktcpdump - show me all packets on port 80wireshark - look at those packets from tcpdump in a guitshark - cli super powerful packet analysistcpflow - capture and assemble tcp streamsifconfig - what’s my iproute - view and change the route tableip - replaces ifconfig, route, and morearp - see your arp tablemitmproxy - spy on ssl connections your programs are makingnmap - in ur networking scanning ur portszenmap - gui for nmapp0f - indentify os of hosts connecting to youopenvpn - a vpnwiregaurd - a newer vpnnc - netcat make tcp connections mannuallysocat - proxy a tcp socket to a unix domain sockettelnet - like ssh but insecureftp / sftp - copy files (s for ssh)netstat / ssl / lsof / fuser - what port ar servers usingiptables - set up firewalls and NATnftables - new version of iptableshping3 - construct any tcp packet you wanttracerroute / mtr - what servers are on the way to that servertcptraceroute - use tcp packets instead of icmp to tracerouteethtool - manage physical ethernet connections and network cardsiw / iwconfig - manage wireless network settings (see speed/frequency)sysctl - configure linux kernel’s network stackopenssl - do literally anything with ssl certsstunnel - make a ssl proxy for an insuecure serveriptraf / nethogs / iftop / ntop - see what’s using bandwidthab / nload / iperf - benchmarking toolspython3 -m http.server - serve files from a directoryipcalc - easily see what 13.21.2.3/25 meansnsenter - enter a container process’s network namespace