Reactivate an account

Hello,
I had this issue today. One of my co-workers accounts was looked due to inactivity. The passwd -u command didn't work. So I did what I posted below. I don't think this the proper way to do this. What is the right to reactivate an account in Linux? After I changed the inactivity to never he was able to login.

bitlord@server
< sudo chage -l user
Last password change                                    : Aug 13, 2013
Password expires                                        : Oct 12, 2013
Password inactive                                       : Nov 16, 2013
Account expires                                         : never
Minimum number of days between password change          : 7
Maximum number of days between password change          : 60
Number of days of warning before password expires       : 7
bitlord@server
< sudo chage -I -1 user
bitlord@server
< sudo chage -l user
Last password change                                    : Aug 13, 2013
Password expires                                        : Oct 12, 2013
Password inactive                                       : never
Account expires                                         : never
Minimum number of days between password change          : 7
Maximum number of days between password change          : 60
Number of days of warning before password expires       : 7

thanks for any help you might give.

You can have a look at usermod command...

Yes I have looked at the usermod command.
When I goggled the problem the 1st page I went to was

I then set the expiration far into the future and the user still could not login.