Use shell scripts to quickly deploy DHCP servers!

Server address: 192.168.1.110

Network Segment: 192.168.1.0

Subnet Mask: 255.255.255.0

Gateway: 192.168.1.254

[[Email protected] ~] # Cat DHCP. Sh
#! /Bin/bash
# Auto deploy DHCP server for 192.168.1.0/24 netmask
# This script need you have you Yum Repository
Echo "____________ Mount-CDROM _____"
Umount/dev/CDROM &>/dev/null # uninstall the CD
Mount/dev/CDROM/mnt &>/dev/null & # Remount the System Disk
Touch/etc/yum. Repos. d/yum. Repo # create a yum configuration file named Yum. Repo
If [$? -EQ 0]
Then # determine whether the yum file is successfully created and write the following parameters
Cat <EOF>/etc/yum. Repos. d/yum. Repo
[Server]
Name = rehat server yum
Baseurl = file: // MNT/Server # URL access path
Enabled = 1 # Start the yum Repository
Gpgcheck = 0 # disable the software package Signature
EOF

Else # Otherwise, the yum installation error is printed!
Echo "_ ----- install Yum error ___"
Fi

# Installing the DHCP Software Package

Echo "___-install DHCP packet __"
Yum-y install DHCP &>/dev/null &&
If [-F/etc/DHCPD. conf] # determine whether the master configuration file/etc/DHCPD. conf exists.
Then # Run
MV/etc/DHCP. CONF/etc/DHCPD. conf. Save # Save the original configuration file
Fi
# Variable definition, mainly including network, subnet, address and other information
Net = 192.168.1.0
Mask = 255.255.255.0
Range = "192.168.1.50 192.168.1.100"
Domain_name = "breaklinux.com"
Router = 192.168.1.254
DNS = 8.8.8.8
# Create a new configuration file
Echo "______ create configuration file ______"
Cat <EOF>/etc/DHCPD. conf
Ddns-Update-style interim;
Ignore client-updates;

Subnet $ net netmask $ mask {

# --- Default Gateway
Option routers $ router;
Option subnet-mask $ mask;

Option Nis-domain "$ domain_name ";
Option domain-name "$ domain_name ";
Option domain-name-servers $ DNS;

Option time-offset-18000; # Eastern Standard Time
# Option NTP-servers 192.168.1.1;
# Option NetBIOS-name-servers 192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- You understand NetBIOS very well
# Option NetBIOS-node-type 2;

Range dynamic-BOOTP $ range;
Default-lease-time 21600;
Max-lease-time 43200;

# We want the nameserver to appear at a fixed address
Host NS {
Next-server marvin.redhat.com;
Hardware Ethernet 12: 34: 56: 78: AB: CD;
Fixed-address 207.175.42.254;
}
}
EOF
Echo "_____________ DHCP configuration file correctly"
Service DHCPD restart # Start Dhcp Service
Chkconfig DHCPD on # Start upon startup

 

DHCP server set up

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This article is from the "rendering unchanged yesterday" blog, please be sure to keep this source http://breaklinux.blog.51cto.com/8193722/1531320