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Install Procedure for samba

Requirements

To install samba you will need the following:
  • a installed and supported operating system (e.g. CentOS 6.x)
  • root-access
  • a fast internet connection

Preliminary Note

this is based on http://jehurst.wordpress.com/2011/01/17/rhel-6-for-the-clueless-samba-server/

I’ve found a couple of tutorials on Samba, but neither one had all the right information. After fighting with it a bit, this is what I did to get it working.

Install

Install Samba by logging into a Terminal as root:

yum install samba

if you want to have access to samba-shares you also want to
yum install samba-client

Setup

Setup SeLinux

If SeLinux is active, then it might be necessary to set some samba-related variables depending on the share-location.

This and more information can be found at http://selinuxproject.org/page/SambaRecipes

The samba_export_all Flag will allow to share any folder on the machine, use with care.

setsebool -P samba_export_all_rw=1

setsebool -P samba_enable_home_dirs=1

Setup a shared directory

Create shared directory; I used /home/shared:

mkdir /home/shared
chmod a+w /home/shared
chcon -t samba_share_t /home/shared

That last line insures the SELinux security system knows to allow outside systems to poke around in that folder. Now anyone using this computer can move files in and out of the folder, as well as the Samba users.

Setup a samba user

Add a Samba user. This is a different task than simply adding a user account. There is a GUI tool for adding Linux user accounts to the machine for them to use the computer itself. However, Samba users must be handled differently, so that the system forces them to use the Samba server.

useradd -c "Real Name" -d /home/samba-username -s /sbin/nologin samba-username

That’s all one line. As usual, substitute the actual Real Name and samba-username in the command above. Then create the Samba password. Remember what we said about coming up with good passwords:

smbpasswd -a samba-username

It will prompt for the password, which you type in blindly:

New SMB password:
Retype new SMB password:
Added user username.

Edit smbusers:

vim /etc/samba/smbusers

This will open the default text editor. Scan down the file until you see something like this:

root = administrator admin
nobody = guest pcguest smbguest

Immediately below this, add a line with this format:

username = samba-username

so CentOS recognizes the person logging in from the Winbox by their samba-username.

Setup a samba config

Then open:

vim /etc/samba/smb.conf

Find the section headed '[global]'. Change the workgroup name to whatever your Windows computer will be seeking. Default is workgroup in lower case letters. You’ll need to remove the semicolon in front of the next line and provide a proper hostname for the netbios name, which would be the name you gave your RHEL computer during installation, again in lower case. Remove the semicolon from the next line and the IP address numbers from the sample; all we need are the two interfaces lo eth0. Below that is a line with hostsallow as a model. Below that, start a new line with the same indentation:

hosts allow = 127. 192.168.1.

The “127.” is the IP address for everything on your own machine. The other (192.168.1.) is the private LAN network I use for my home router; by leaving off the last section after the dot, it automatically includes every computer with that prefix, which is reserved for LANs.

If you want to bind to specific interfaces only you maybe want to consider

interfaces = lo vboxnet0 192.168.56.1/24
bind interfaces only = yes

Go all the way to the bottom of the file and add some lines. I named my shared directory “shared”. Thus, the section heading should be named the same:

[shared]
path = /home/shared
writeable = yes
browseable = yes
read only = No
guest ok = Yes
public = Yes
valid users = username1 username2
create mask = 0666
directory mask = 0777

Setup the firewall

Now change the firewall to allow Samba to get through. You can use the tool in System > Administration > Firewall. Simply scan down the list to Samba and checkmark the box. Optionally checkmark IPP printer sharing. Then hit “Apply”.

system-config-firewall

or in Textmode
system-config-firewall-tui

Setup the services

check the status of the services with

chkconfig

chkconfig smb on
chkconfig nmb on

Test

following commands might be helpful:

findsmb
smbclient //host/share -U username