Commands i use on my Mac
dig <host.doamin>
dig <domain> TXT
dig <domain> MX
dig <domain> NS
Check the record from specific DNS Server
dig @9.9.9.9 <host.domain>
Check Open Ports
curl -v mail.test.com:22
nc -vz 192.168.13.4 25
OPENSSL
openssl s_client -connect <serveFQDN>:443 -showcerts
Console on my Mac
ls /dev/*usb*
screen </dev/NAME> 9600
TCP dump
sudo tcpdump -n icmp
What is My IP
curl http://ifconfig.co
curl http://ifconfig.co/country
Speed Test
curl -s https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py | python -
curl -s https://raw.githubusercontent.com/khodaeifard/speedtest/master/speedtest.py | python -
Mehdi
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