Book Image

Linux Networking Cookbook

By : Agnello Dsouza, Gregory Boyce
5 (1)
Book Image

Linux Networking Cookbook

5 (1)
By: Agnello Dsouza, Gregory Boyce

Overview of this book

Linux can be configured as a networked workstation, a DNS server, a mail server, a firewall, a gateway router, and many other things. These are all part of administration tasks, hence network administration is one of the main tasks of Linux system administration. By knowing how to configure system network interfaces in a reliable and optimal manner, Linux administrators can deploy and configure several network services including file, web, mail, and servers while working in large enterprise environments. Starting with a simple Linux router that passes traffic between two private networks, you will see how to enable NAT on the router in order to allow Internet access from the network, and will also enable DHCP on the network to ease configuration of client systems. You will then move on to configuring your own DNS server on your local network using bind9 and tying it into your DHCP server to allow automatic configuration of local hostnames. You will then future enable your network by setting up IPv6 via tunnel providers. Moving on, we’ll configure Samba to centralize authentication for your network services; we will also configure Linux client to leverage it for authentication, and set up a RADIUS server that uses the directory server for authentication. Toward the end, you will have a network with a number of services running on it, and will implement monitoring in order to detect problems as they occur.
Table of Contents (19 chapters)
Linux Networking Cookbook
About the Author
About the Reviewer

Serving files with SMB/CIFS through Samba

We are going to start by setting up a simple read-only file server using Samba, and then we will expand on it from there. If you are not familiar with SMB/CIFS, you may know it by another name, Windows File Sharing. This is the protocol, which Microsoft uses for its built-in file sharing, but re-implemented by the Samba project.

How to do it…

  1. Install Samba:

    sudo apt-get install samba
  2. Edit /etc/samba/smb.conf:

      server role = standalone server
      map to guest = Bad User
      syslog = 0
      log file = /var/log/samba/log.%m
      max log size = 1000
      dns proxy = No
      usershare allow guests = Yes
      panic action = /usr/share/samba/panic-action %d
      idmap config * : backend = tdb
      path = /home/share
      guest ok = yes
      read only = yes
  3. Restart smbd:

    sudo service smbd restart
  4. You should now be able to browse the share like you used to do in Windows file share.

How it works…

The Global section of the above configuration is a slimmed-down version of the...