Linux
View and set Account details for a user
View Account details
chage -l <username>
Change Expiry date of user Account
chage -E “2030-01-01” <username>
Handy Commands
if your account has ALL privileges - you can log in as root with the log on (-i) sudo command and your accounts password.
sudo -i
Testing TCP connectivity
If telnet is not installed but CURL is - then you can test TCp connectivity using CURL.
curl -v telnet://123.123.123.123:443