We can use the edit command or configure command. I usually use edit. This is actually a hidden command and will not autocomplete.
To delete the config, we need
to get into configuration mode (or edit mode)
root> edit
Entering
configuration mode
[edit]
root#
We are in edit mode now.
[edit]
root# delete
This will delete
the entire configuration
Delete everything
under this level? [yes,no] (no) yes
[edit]
root#
Now we can commit that and
figure out what is next.
[edit]
root# commit
error: cannot
commit an empty configuration
Hmm, we cannot commit an empty
config.
Guess we need to setup the root
account and perhaps a user account so that we can access the system.
We will set the system
host-name and root-authentication to accept a plain-text password that we
enter.
[edit]
root# set system root-authentication
plain-text-password
New password: Skylab321
Retype new
password: Skylab321
[edit]
root# set system host-name Skylabjuniper1
Hmm, we meant to set it to Skylabjuniper1. Well, we can
delete that line by re-entering it but instead of using set, we will use
delete
[edit]
root# delete system host-name Skylabjuniper1
[edit]
root# set system host-name Skylabjuniper2
Now we get to create a user for
this lab. I will create Skylabuser1 and assign him as a super-user, set his
full name to Sky User, and set his password to juniper321
[edit]
root# set system login user Skylabuser1 class
super-user
Uh-oh, we meant to enter
Skylabr1and we entered Skylabuser1. So do we
need to delete that line and re-add it? Nope. We can use rename instead.
[edit]
root# rename system login user Skylabr1 to user Skylabuser1
[edit]
root# set system login user Skylabuser1 full-name
" Sky User "
[edit]
root# set system login user Skylabuser1
authentication plain-text-password
New password: juniper321
Retype new password: juniper321