Difference between revisions of "Network Utils"
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(Created page with "== Network Utils == === network traffic by-process === sudo tcpdump -k NP | grep Sublime === check that a node is pingable in bash === while ! ping -c1 bjjc_spec_22.ubuntu14...") |
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== Network Utils == | == Network Utils == | ||
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=== network traffic by-process === | === network traffic by-process === | ||
sudo tcpdump -k NP | grep Sublime | sudo tcpdump -k NP | grep Sublime | ||
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=== check that a node is pingable in bash === | === check that a node is pingable in bash === | ||
while ! ping -c1 bjjc_spec_22.ubuntu14 &>/dev/null; do :; done ; | while ! ping -c1 bjjc_spec_22.ubuntu14 &>/dev/null; do :; done ; | ||
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=== how do I know if the system trusts the certificate? === | === how do I know if the system trusts the certificate? === | ||
| − | + | you use curl | |
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=== how to tell if port 80 is listening? What is listening on a particular port? === | === how to tell if port 80 is listening? What is listening on a particular port? === | ||
netstat -plnt | netstat -plnt | ||
lsof -nP -i4TCP:$PORT | grep LISTEN | lsof -nP -i4TCP:$PORT | grep LISTEN | ||
Revision as of 01:39, 3 August 2018
Contents
Network Utils
network traffic by-process
sudo tcpdump -k NP | grep Sublime
check that a node is pingable in bash
while ! ping -c1 bjjc_spec_22.ubuntu14 &>/dev/null; do :; done ;
how do I know if the system trusts the certificate?
you use curl
how to tell if port 80 is listening? What is listening on a particular port?
netstat -plnt lsof -nP -i4TCP:$PORT | grep LISTEN
