It's notepad.

apt-get install samba

nano /etc/samba/samba.conf

[global]
        workgroup = WORKGROUP
        server string = %h server
        dns proxy = no
        log file = /var/log/samba/log.%m
        max log size = 1000
        syslog only = no
        syslog = 0

        panic action = /usr/share/samba/panic-action %d

        security = user
        encrypt passwords = true
        passdb backend = tdbsam
        null passwords = true
        obey pam restrictions = yes
        unix password sync = yes

        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
        pam password change = yes
        map to guest = bad user

        load printers = yes
        printing = cups
        printcap name = cups
[printers]
        comment = All Printers
        browseable = no
        path = /var/spool/samba
        printable = yes
        guest ok = yes
        read only = yes
        create mask = 0700
[print$]
        comment = Printer Drivers
        path = /var/lib/samba/printers
        browseable = yes
        read only = no
        guest ok = yes