Network

curl -k

(curl) to ignore bad SSL certificates

curl -I

(curl) to only get headers

nc -u

(nc) to look for udp ports

nc -z

(nc) to only get open ports

nc -v

(nc) to get verbose info

lftp

to get ftp servers

ssh

to connect to to ssh servers

dig

dig [@ip address to query] [domain name to look up] [type (e.g. TXT)]

dig -x

dig [@ip address to query] -x [domain name to look up]

mysql -h -p -u -p

mysql -h [host ip address] -p [port] -u [username] -p[‘password’]

(mysql) show databases

displays the names of all sql databases

(mysql) use

to go into a database

(mysql) select from

(mysql) select [column] from [table] to see the info in the column of that table