Thursday, April 17, 2014

List of Network Diagnostic Tools

In RHEL/Centos/Fedora
ip -- show / manipulate routing, devices, policy routing and tunnels
ifconfig --configure a network interface
ethtool -- query or control network driver and hardware settings
tcpdump -- dump traffic on a network
wireshark --  Interactively dump and analyze network traffic
netstat -- Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
ss -- another utility to investigate sockets
dropwatch -- dropwatch aims to consolidate several of those checks into one tool, making it easier for a sysadmin or developer to detect lost packets.
systemtap --  systemtap script translator/driver
nmap -- Network exploration tool and security / port scanner
nc -- arbitrary TCP and UDP connections and listens
ping -- send ICMP ECHO_REQUEST to network hosts
ping6 -- send ICMP ECHO_REQUEST to network hosts
iptables -- administration tool for IPv4 packet filtering and NAT
ip6tables -- administration tool for IPv6 packet filtering and NAT
arp -- Linux ARP kernel module.
arping -- send ARP REQUEST to a neighbour host
tc -- show / manipulate traffic control settings, is used to configure Traffic Control in the Linux
lnstat -- unified linux network statistics
nstat -- rtacct - network statistics tools
traceroute -- print the route packets trace to network host
tracepath -- traces path to a network host discovering MTU along this path
tunctl --create and manage persistent TUN/TAP interfaces
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