# -  - #
# - Create & delete users Ubuntu - #
https://www.maketecheasier.com/add-remove-user-to-groups-in-ubuntu/
https://askubuntu.com/questions/80115/how-to-remove-a-user-from-a-group

# -  - #
# - How to give root access to a normal user for a few commands only - #
http://linuxg.net/how-to-allow-a-normal-user-to-run-some-root-commands/




:Step 1
# -  - #
# - Install samba server & create samba user - #

:a
# -  - #
# - Install samba server - #
sudo apt install tasksel -y;
sudo tasksel install samba-server;

:b
# -  - #
# - Terminal: Create samba user - #

    # - Create user without home and with no shell to login - #
    # - (user won't appear in login user list when linux starts) - #
    # - Use just one command, the second is the same without --uid - #

sudo adduser smbguest --uid 992 --shell=/bin/false --no-create-home;



Go to  :Step 2



# -  - #
# - Create group - #
https://www.techonthenet.com/linux/sysadmin/ubuntu/create_group_14_04.php

sudo groupadd -g 27 sambashare;
sudo groupadd -g 10000 students;
sudo groupadd -g 10100 developers;

# -  - #
# - Create a common user - #
sudo adduser croman;

# - Add user to sudo group - #
sudo usermod -aG sudo croman;
# - Delete user from sudo group - #
sudo deluser croman sudo

# - Change password to user - #
sudo passwd croman;
c1386

sudo adduser mariojose --shell=/bin/false --no-create-home;

# - Don't use unless you need to delete an user - #
# - Delete user and all his home directory & files - #
sudo deluser --remove-home --remove-all-files mariojose;
sudo deluser --remove-home --remove-all-files smbguest;

# -  - #
# - Delete an user from a group - #
sudo deluser username group
sudo deluser croman sudo

? -> To test
usermod -R "group" "user name"



:Step 2
# -  - #
# - Add samba user to sambashare group - #

sudo usermod -a -G sambashare smbguest;
sudo usermod -a -G sambashare is_derayo;



:Step 3
# -  - #
# - Create a samba & admin password - #

sudo smbpasswd -a smbguest;
sudo smbpasswd -a is_derayo;



:Step 4
# -  - #
# - Enable samba & admin user - #

sudo smbpasswd -e smbguest;
sudo smbpasswd -e is_derayo;



:Step 5
# -  - #
# - Check samba & admin user group - #

cat /etc/group;
tail /etc/group;

cat /etc/group | grep smbguest;
cat /etc/group | grep is_derayo;



:Step 6
# -  - #
# - Check samba & admin on password file - #

cat /etc/passwd;
tail /etc/passwd;

cat /etc/passwd | grep smbguest;
cat /etc/passwd | grep is_derayo;



:Step 7
# -  - #
# - Modify samba configuration file - #

# - For full linux instalation in terminal - #
sudo gedit /etc/samba/smb.conf
    
# - For sever's terminal - #
sudo vim /etc/samba/smb.conf

   workgroup = L_IS
   wins support = yes
   name resolve order = lmhosts host wins bcast

   # - For full linux installation only - #
   # - Please don't use this line in a dedicated server - #
   # - If this line does not appear in /etc/samba/smb.conf file, add it in Misc paragraph - #
   ############ Misc ############
   security = user

 # - These lines go at the end of the /etc/samba/smb.conf file - #
[ToShare-FullAccess]
    comment = ToShare-FullAccess to everybody in the net
    path = /home/Data/Documents/ToShare-FullAccess
    writeable = yes
    browseable = yes
    guest ok = no
    create mask = 0777
    valid users = is_derayo, smbguest

[ToShare-JustRead]
    comment = ToShare-JustRead to everybody in the net
    path = /home/Data/Documents/ToShare-JustRead
    writeable = no
    browseable = yes
    guest ok = no
    create mask = 0755
    valid users = is_derayo, smbguest



:Step 8
# -  - #
# - Restart samba service - #

sudo systemctl enable smbd.service nmbd.service;
sudo systemctl start smbd.service nmbd.service;

sudo systemctl restart smbd.service nmbd.service;

#sudo /etc/init.d/nmbd restart
#sudo /etc/init.d/smbd restart



:Step 9
# -  - #
# - End - #

This process has ended here, 
please don't continue with the rest of it.





service --status-all
systemctl status smbd
systemctl status nmbd


sudo /etc/init.d/smbd stop
sudo /etc/init.d/smbd start


sudo service smbd stop
sudo service smbd start

sudo service nmbd restart
sudo service smbd restart



# -  - #
# - Sometimes you have to restart the computer - #



# -  - #
# - This process ends right here - #
# -  - #



# -  - #
# - Check samba connections - #
sudo smbstatus



# -  - #
# - Additional ways to create samba users - #

 9. Create a samba user in server's terminal with no login options


# -  - #
# - This procedure works beautiful in server's terminal - #
# - already tested - #
# -  - #


sudo useradd -u 990 josue -s /usr/sbin/nologin;
sudo usermod -a -G sambashare josue;
sudo smbpasswd -a josue;
sudo smbpasswd -e josue;


sudo useradd mario -s /usr/sbin/nologin;
sudo usermod -a -G sambashare mario;
sudo smbpasswd -a mario;
sudo smbpasswd -e mario;


# -  - #
# - id sambashare group - #
getent group sambashare;
# - Results - #
sambashare:x:115:is_derayo,smbguest,sidneyjason

# - Create samba user with 115 sambashare group at once, since we know sambashare ID group - #
sudo useradd -u 989 -g 115 quique -s /usr/sbin/nologin;
sudo smbpasswd -a quique;
sudo smbpasswd -e quique;



# -  - #
# - Jump to step 7 with smb.conf file - #
# -  - #

# - In full installed linux terminal - #
sudo gedit /etc/samba/smb.conf

# - In server's terminal - #
sudo vim /etc/samba/smb.conf


sudo /etc/init.d/samba restart;



# -  - #
# - Other commands - #



# -  - #
# - Change user ID - #
id mariofuentes;
uid=996(mariofuentes) gid=130(sambashare) groups=130(sambashare)

sudo usermod -u 1010 mariofuentes;
[sudo] password for is_derayo:

id mariofuentes;
uid=1010(mariofuentes) gid=130(sambashare) groups=130(sambashare)


# -  - #
# - Create a group - #
sudo groupadd -g Group_ID Group_Name
sudo groupadd -g 10000 students
sudo groupadd -g 1020 administrators


# -  - #
# - List all Unix group names? - #
groups
id -Gn

# - Returns the list of groups for the specified user - #
id -Gn mario


# - List all groups names - All - #
cut -d: -f1 /etc/group

# - List all groups names - The best way - #
getent group



# - Check that the group called students was added to the system - #
sudo tail /etc/group;
tail /etc/group;
cat /etc/group;
cat /etc/group | grep is_derayo;

cat /etc/passwd;
tail /etc/passwd;
cat /etc/passwd | grep is_derayo;


# - Add user to the new group - #
sudo usermod -a -G students mariojose;
sudo usermod -a -G administrators mario;
sudo usermod -a -G administrators mariofuentes;
sudo usermod -a -G administrators is_derayo;


sudo chown is_derayo:administrators 1-Linux_Configuration_Files/


# -  - #
# - id sambashare group - #
getent group sambashare;