1. Domain Resolution Configuration Files: File: /etc/resolv.conf - host name resolver configuration file search name-of-domain.com - Name of your domain or ISP's domain if using their name server nameserver XXX.XXX.XXX.XXX - IP address of primary name server nameserver XXX.XXX.XXX.XXX - IP address of secondary name server This configures Linux so that it knows which DNS server will be resolving domain names into IP addresses. If using DHCP client, this will automatically be sent to you by the ISP and loaded into this file as part of the DHCP protocol. If using a static IP address, ask the ISP or check another machine on your network. Red Hat/Fedora GUI: /usr/sbin/system-config-network (select tab "DNS").

2. Linux TCP/IP Network Configuration Files: File Description /etc/resolve.conf List DNS servers for internet domain name resolution. Manual page for: /etc/resolv.conf /etc/hosts Lists hosts to be resolved locally (not by DNS). Manual page for: /etc/hosts /etc/nsswitch.conf List order of host name search. Typically look at local files,then NIS server, then DNS server. Manual page for: /etc/nsswitch.conf Red Hat/Fedora/CentOS: Specify network configuration. eg. Static IP, DHCP, /etc/sysconfig/network NIS, etc. Red Hat/Fedora/CentOS: / Specify TCP network information. etc/sysconfig/network-scripts/ifcfg-device Ubuntu/Debian: /etc/network/interfacesSpecify network configuration and devices. eg. Static IP and info, DHCP, etc.

3. Linux Network Configuration Networking, set-up and administration This Linux tutorial covers TCP/IP networking, network administration and system configuration basics. Linux can support multiple network devices. The device names are numbered and begin at zero and count upwards. For example, a computer running two ethernet cards will have two devices labeled /dev/eth0 and /dev/eth1. Linux network configuration, management, monitoring and system tools are covered in this tutorial

4. Introduction Now that you have a firm grasp of many of the most commonly used networking concepts, it is time to apply them to the configuration of your server. Some of these activities are automatically covered during a Linux installation, but you will often find yourself having to know how to modify these initial settings whenever you need to move your server to another network, add a new network interface card or use an alternative means of connecting to the Internet. In Chapter 2, "Introduction to Networking", we started with an explanation of TCP/IP, so we'll start this Linux networking chapter with a discussion on how to configure the IP address of your server.

5. Linux Networking - Network Linux Computers The Linux computer operating system and Linux networking continues to gain in mainstream popularity with businesses and families. Explore Linux network technology and tools. TCP/IP Network Performance Network Programming Operating Systems and Computer Networks Computers use low-level software called an operating system to help people build and run their own programs. Operating system software runs not just on laptop computers but also on cell phones, network routers and other gadgets. An O/S normally provides basic networking support for Ethernet, Wi-Fi and sometimes Bluetooth and other wireless protocols. Samba for Linux Networking Samba supports sharing of files and printers across different operating systems using the Session Message Block (SMB) protocol. Many Linux environments use Samba to share resources with Windows. Linux Networking and Kernel Programming This detailed reference guide exposes many of the network programming secrets hidden inside the Linux operating system.