Difference between revisions of "Network Utils"
From Wasya Wiki
(→how to tell if port 80 is listening? What is listening on a particular port?) |
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lsof -nP -i4TCP:$PORT | grep LISTEN | lsof -nP -i4TCP:$PORT | grep LISTEN | ||
lsof -i:1433 | lsof -i:1433 | ||
| + | |||
| + | === Other === | ||
| + | Port Forward | ||
| + | ncat --sh-exec "ncat 10.0.1.117 22" -l 2289 | ||
| + | ssh -L 8080:127.0.0.1:8080 -L 8081:127.0.0.1:8081 developer@133.111.111.111 | ||
| + | |||
| + | What's running on my ports? | ||
| + | sudo netstat -ltnp | ||
| + | netstat -anp | grep :443 | grep LISTEN | ||
| + | |||
| + | Rename a wireless interface | ||
| + | ip link set wlp5s0 name wlan0 | ||
| + | |||
| + | === Security === | ||
| + | |||
| + | List nodes in the network: | ||
| + | sudo arp-scan -l --interface=wlan0 | ||
| + | |||
| + | This is better than wireshark and tcpdump: | ||
| + | ngrep port 3000 | ||
| + | ngrep -d any -W byline port 5000 | ||
Revision as of 01:44, 3 August 2018
Contents
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 lsof -i:1433
Other
Port Forward
ncat --sh-exec "ncat 10.0.1.117 22" -l 2289 ssh -L 8080:127.0.0.1:8080 -L 8081:127.0.0.1:8081 developer@133.111.111.111
What's running on my ports?
sudo netstat -ltnp netstat -anp | grep :443 | grep LISTEN
Rename a wireless interface
ip link set wlp5s0 name wlan0
Security
List nodes in the network:
sudo arp-scan -l --interface=wlan0
This is better than wireshark and tcpdump:
ngrep port 3000 ngrep -d any -W byline port 5000
