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Linux Networking

Tools

net-tools and iproute2 commands:

net-tools new iproute2 description
ifconfig ip addr Interface address details
route ip route Show routing table
arp ip neigh show arp cache
ipmaddr ip maddr multicast address
iptunnel ip tunnel IP tunnels
nameif ifrename MAC based NIC naming
mii-tool ethtool Ethernet NIC details

Other network tools:

plog
ping
whois
traceroute
tracepath
mtr
dig
iptables
netstat
dlint

Optimization tools:

iftop interface bandwith usage
iperf bandwidth measurements
ifstat monitor interface stats
bmon monitor rates and bandwidth
ethstatus NIC throughput check
bing bandwidth tester
bwm-ng bandwidth monitor
ethstats ethernet stats monitoring
ipfm bandwidth analysis tool
Network manager GUI CLI tools PPP / 3G modem DHCP client systemd units
NetworkManager Yes nmcli, nmtui Yes internal / dhclient NetworkManager.service
systemd-networkd No networkctl No internal systemd-networkd.service, systemd-resolved.service
ConnMan no connmanctl Yes (with ofono) internal connman.service
netctl no netctl, wifi-menu Yes dhcpcd / dhclient netctl-ifplugd@interface.service, netctl-auto@interface.service
Wicd Yes wicd-cli, wicd-curses No dhcpcd / dhclient wicd.service

/etc/hostname

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References