We can see above that we have a single Ethernet card ( eth0) and a loop back interface ( lo) TX packets:341240 errors:0 dropped:0 overruns:0 carrier:0 RX packets:341240 errors:0 dropped:0 overruns:0 frame:0 TX packets:4212889 errors:0 dropped:0 overruns:0 carrier:0 RX packets:8776319 errors:0 dropped:0 overruns:0 frame:0 UP BROADCAST RUNNING MULTICAST MTU:9001 Metric:1 Provides error-free transfer of data over physical layerĮth0 Link encap:Ethernet HWaddr 0A:05:1E:A5:6F:FF Routers control operation of subnet, deciding physical path data takes telnet: utility for communicating with another hostįormat the data to be presented to the Application layer (network translator)Īllow session establishment between processes running on different stationsįlow control, ensures all messages are delivered error-free, in sequence, no losses or duplications.wireshark/tshark: network packet sniffer and analyser (create pcaps with tcpdump and analyse with tshark).iptraf: monitoring network traffic (more visual than netstat, but not as detailed).iftop: monitors network traffic and displays table of bandwidth usage.ifconfig: configure or review your network interfaces.strace: monitor interactions between processes.
top: check what CPU and Memory running processes are utilising.
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