I created this tutorial how to page because I had trouble accessing my Ubuntu PC from my Windows based Network (Windows Vista, Windows XP) in my home. I have 4 PC’s (wired and wireless) connected to a router – which is the how they get out the Internet. All the PC’s (including the Ubuntu one) have the same network “workgroup” name. In addition this tutorial assumes you alread have “Samba” installed, and if you don’t run this first in terminal:

sudo apt-get install samba

Next, stop samba while you make the required changes by running this in terminal:

sudo /etc/init.d/samba stop

Now you need to edit the samba config file, which is located here:

/etc/samba/smb.conf

You can open it in a text editor to make changes by running this in terminal:

sudo gedit /etc/samba/smb.conf

Copy and poast the following into smb.conf:

[global]
    ; General server settings
    netbios name = YOUR_HOSTNAME
    server string =
    workgroup = YOUR_WORKGROUP
    announce version = 5.0
    socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192

    passdb backend = tdbsam
    security = user
    null passwords = true
    username map = /etc/samba/smbusers
    name resolve order = hosts wins bcast

    wins support = yes

    printing = CUPS
    printcap name = CUPS

    syslog = 1
    syslog only = yes

; NOTE: If you need access to the user home directories uncomment the
; lines below and adjust the settings to your hearts content.
;[homes]
    ;valid users = %S
    ;create mode = 0600
    ;directory mode = 0755
    ;browseable = no
    ;read only = no
    ;veto files = /*.{*}/.*/mail/bin/

; NOTE: Only needed if you run samba as a primary domain controller.
; Not needed as this config doesn't cover that matter.
;[netlogon]
    ;path = /var/lib/samba/netlogon
    ;admin users = Administrator
    ;valid users = %U
    ;read only = no

; NOTE: Again - only needed if you're running a primary domain controller.
;[Profiles]
    ;path = /var/lib/samba/profiles
    ;valid users = %U
    ;create mode = 0600
    ;directory mode = 0700
    ;writeable = yes
    ;browseable = no

; NOTE: Inside this place you may build a printer driver repository for
; Windows - I'll cover this topic in another HOWTO.
[print$]
    path = /var/lib/samba/printers
    browseable = yes
    guest ok = yes
    read only = yes
    write list = root
    create mask = 0664
    directory mask = 0775

[printers]
    path = /tmp
    printable = yes
    guest ok = yes
    browseable = no

; Uncomment if you need to share your CD-/DVD-ROM Drive
;[DVD-ROM Drive]
    ;path = /media/cdrom
    ;browseable = yes
    ;read only = yes
    ;guest ok = yes

[MyFiles]
    path = /media/samba/
    browseable = yes
    read only = no
    guest ok = no
    create mask = 0644
    directory mask = 0755
    force user = YOUR_USERNAME
    force group = YOUR_USERGROUP

Next, you're going to want to edit the appropriate values:

netbios name = name_of_your_computer_will_be_on_the_network
workgroup = same_name_all_computers_in_house_use_as_workgroup
wins suypport = yes
force user = YOUR_USERNAME
force group = YOUR_USERGROUP

you can edit anything else you want, but in most cases at least those 5 things are required. Now, start samba back up:

sudo /etc/init.d/samba start

Next, you need to actually ADD THE USERS MANUALLY INTO SAMBA (this is why mine was failing - I never did this part). Run these commands in terminal:

sudo smbpasswd -L -a your_username
sudo smbpasswd -L -e your_username

You will be asked for a password after running the first one, BE SURE to use your LOGIN password and username for Ubuntu! That's it! You should now be able to see and access the Ubuntu box on the Windows based network, and login from another PC using your main Ubuntu username and password. Any files or folders you right click and "share" on the Ubuntu box will appear on the PC's now when you go to "Network" and the name of your Ubuntu box.

If you get stuck or need more info, view this page for reference.