Brother Bird's Linux private dish (server) Chapter III Introduction to the local Area Network Architecture chapter fourth connected to the Internet

Brother Bird's Linux private dish (server) Chapter III Introduction to the local Area Network Architecture chapter fourth connected to the Internet

[TOC]

3.1 Online of the local area network 3.1.1 Local Area network cabling planning 3.1.1-1 Linux Direct networking-same status as PC

3.1.1-2 Linux Direct Networking-separate domains from the general PC

3.1.1-3 Linux Direct networking-let Linux directly manage LAN

3.1.1-4 Linux on a firewall-let Linux use Private IP

3.2 Book use of internal online network parameters and communication protocols 3.2.1 Online parameters and communication protocols

4.1 Linux Pre-Internet Considerations 4.1.1 Linux Network card

Confirm that the network card has been captured by the core

[[email protected] ~]# dmesg | grep -in eth

377:e1000:eth0:e1000_probe:intel (r) pro/1000 network Connection 383:e1000:eth1:e1000_probe:intel (r) pro/1000 Network Connection 418:e1000:eth0 NIC Link is up to $ Mbps full Duplex, Flow Control:rx 419:eth0:no IPv6 Routers present

Query the relevant device chip data via LSPCI

[[email protected] ~]# lspci | grep -i ethernet

00:03.0 Ethernet controller:intel Corporation 82540EM Gigabit Ethernet Controller (rev. 02)

Observing the module of the network card

[[email protected] ~]# lsmod | grep 1000

e1000 119381 0 <== is indeed loaded into the nuclear heart!

[[email protected] ~]# modinfo e1000

FileName:/lib/modules/2.6.32-71.29.1.el6.x86_64/kernel/drivers/net/e1000/e1000.ko VERSION:7.3.21-K6-NAPI License : GPL Description:intel (R) pro/1000 Network Driver ..... (omitted below) .....

The above output information is focused on the section of the file name (filename)! The file name directory of that string is the main directory where our drivers are placed . It's important to note that the 2.6.32-71.29.1.el6.x86_64 is the core version, so the different core versions use the same drivers.

4.1.2 Compiling NIC driver (option) 4.1.3 Linux Network related configuration file case

Required network parameters	Primary profile file name	Important parameters
IP Netmask DHCP or not Gateway	/etc/sysconfig/network-scripts/ifcfg-eth0	device= network card code bootproto= Whether to use DHCP hwaddr= to add a network card number (MAC) Ipaddr= is the IP address netmask= only network shield onboot= you want to start this interface by default gateway= is the communication gate nm_controlled= Additional network management software Bird Brother suggested to cancel this project!
hostname	/etc/sysconfig/network	networking= want to have network networking_ipv6= support IP V6 no? Hostname= Your host name
DNS IP	/etc/resolv.conf	nameserver DNS IP
host name corresponding to private IP	/etc/hosts	Private IP hostname alias

• /etc/services This file is the total protocol that records the schema on TCP/IP, including HTTP, ftp, SSH, Telnet, and so on, as defined by the port number, which is planned by this file. If you want to customize a new protocol corresponding to the port, you have to change the file;

• /etc/protocols This file defines the relevant data for the IP packet protocol, including the definition of the packet protocol in ICMP/TCP/UDP.

Network Start-up instructions-/etc/init.d/network Restart this script is the most important! Because the parameters of the entire network can be restarted in a breath! He will take the initiative to read all the network configuration files, so you can quickly restore the system default parameter values.

• Ifup eth0 (Ifdown eth0) starts or shuts down a network interface. Can be handled through this simple script! These two script will take the initiative to the/etc/sysconfig/network-scripts/directory, read the appropriate configuration file to deal with Ah! (e.g. Ifcfg-eth0).

Brother Bird's Linux private dish (server) Chapter III Introduction to the local Area Network Architecture chapter fourth connected to the Internet