Approximate experimental topological diagram
Configuration of the DHCP server side1. Install DHCPYum Install DHCP2. Copy the configuration fileCP /usr/share/doc/dhcp-4.1. 13. Edit the configuration file# vim /etc/dhcp/dhcpd.conf(1) Default lease time#指定默认的租约时间的长度, units: seconds Default-lease-time 3600;(2) Maximum lease time(3) How to log records#日志记录的方式log-facility local7; #意味着服务启动后可在/var/log/message,/var/log/boot.log see the log of the DHCP service # because local7* 's log way path i
Turn on the VPN service on the router, where we can access resources on the home network and easily and securely access data from the home network. The following will show you how to open the router VPN service.
Using the router's DMZ (quarantine) settings or applications using networked storage, we are able to access resources on the home network over the Internet. However, to ensure that communication data is not intercepted, we should use VPN (virtual private network) as much as possible. VP
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part of the IETF standard process, the third mode-standard DNS update method appears. The DHCP server must be configured to use one of the two current schemes. Version 3.0b2pl11 and earlier use special mode; however, this mode is outdated. If you want to retain the same behavior, add the following line at the beginning of the configuration file:
Ddns-update-style ad-hoc;To use the recommended mode, add the following line at the beginning of the confi
DHCP lab report-- Yang Dong
Lab Environment
Server: Red Hat Enterprise Linux 5.3 (ip: 192.168.0.20)
Server: Red Hat Enterprise Linux 5.3 (ip: 192.168.0.10, 192.168.1.10)
Client: windows xp
01. install the software package
[Root @ yang ~] # Rpm-ihv/media/Server/dhcp-3.0.5-18.el5.i386.rpm
Tutorial 1: Configure one serverDHCPServers are allocated to LAN usersIpAddress.
01. modify the configuration file.
[Root @ yang ~] # Cp-rf/usr/share/doc/dhcp-3.0.5/dhcpd. conf. sample/etc/dhcpd. conf
Cp
effect
}
Next, we will explain some common parameters and declarations for global and local configuration.
1. Common parameters:
(1) ddns-update-style (none | interim | ad-hoc)
Purpose: Define the supported DNS dynamic update types.
None: dynamic update is not supported.
Interim: indicates the DNS interactive update mode.
Ad-hoc: indicates the special DNS update mode.
Because the IP address obtained by the DHCP Client is always changing, it is diffic
server. The local configuration is usually represented by the declaration part. this part takes effect only for the local configuration, for example, only for a specific IP scope.
Dhcpd. conf file format:
# Global configuration
Parameter or option; # Global
# Local Configuration
Statement {
Parameter or option; # Local effect
}
Next, we will explain some common parameters and declarations for global and local configuration.
1. common parameters:
(1) ddns
install the DHCP server first.
1. download or find the DHCP service installation package from the CD.
II. Installation (dhcp * indicates the installation package name ):
# Rpm-ivh dhcp *
3. configure the DHCP file:
Copy/usr/share/doc/dhcp */dhcpd. conf. sample to the/etc directory and change it to dhcpd. conf.
# Cp/usr/share/doc/dhcp */dhcpd. conf. sample/etc/dhcpd. conf
Of course, you can also first vi/etc/dhcpd. conf, and then run the following command in the last line mode:
R/usr/share/doc/d
of the DHCP scope. Click "Next ".
5) enter the start and end IP addresses to define the IP address pool. Enter a subnet mask in decimal format separated by periods. You can also specify the binary length of the network part of the IP address. Figure 15-8 shows the operation. Some IP addresses of the B-class network are allocated to the address pool. The last byte of the IP address is the subnet number. Click "Next" after the definition ".
6) "NewScopeWizard" provides a window in which IP addre
can be modified later in the attribute window of the scope. Click "Next ".
5) enter the start and end IP addresses to define the IP address pool. Enter a subnet mask in decimal format separated by periods. You can also specify the binary length of the network part of the IP address. Figure 15-8 shows the operation. Some IP addresses of the B-class network are allocated to the address pool. The last byte of the IP address is the subnet number. Click "Next" after the definition ".
6) "NewScopeWi
the context menu.
3) Select "NewScope" to start the wizard. If "NewSuperscope" or "NewMulticastScape" is selected, a wizard is started to collect the required information.
4) enter the name and description of the scope. These attributes can be modified later in the attribute window of the scope. Click "Next ".
5) enter the start and end IP addresses to define the IP address pool. Enter a subnet mask in decimal format separated by periods. You can also specify the binary length of the network pa
, on-demand dialing, Internet access permission management, automatic virus isolation, IEEE802.1X, UPnP, DDNS, and system security logs, at the same time, the full Chinese configuration interface is provided. The user interface is friendly and easy to use, so that each user can easily configure the router and establish a fast and reliable connection with the computer, share high-speed Internet connections, shared files, and resources. In particular, i
, without the need for each user to set static IP addresses, and distribute TCP/IP configuration parameters to valid network clients in the LAN.
DDNS: The full Name of Dynamic Domain Name Server (Dynamic Domain Name resolution system), usually known as "Dynamic DNS", because for ordinary broadband Internet access, use Dynamic IP addresses provided by the ISP (network service provider. If an Internet user needs to access a server created in the LAN, th
. I don't understand how to debug it ^
I am debugging this way...I applied for a test account, and then resolved the interface address DDNS to my host.This allows debugging.
Wx.qq.com is convenient for debugging.
Use ddns to resolve to the local machine, and send messages to clients (Mobile or Desktop ).
How does the public platform implement local testing? Searching before a question is a good
priority.
● Common parameters: ● Ddns-update-style (none | interim | ad-hoc): defines the supported DNS dynamic update types, this parameter is required and must be placed in the first line and can only be used in ● global configuration.● None: not supported.● Interim: DNS interactive update mode.● Ad-hoc: Special DNS update mode.● Ignore-client-updates: ignore client updates. This parameter can only be used in global configuration.● Default-lease-t
There are many issues to consider when setting up personal website servers. Today we will discuss the network problems of personal website construction. We all know that a WEB or FTP site established on a LAN can only be accessed through the Intranet, but not through the Internet. To solve this problem, we usually apply for an IP address with a peanut shell to bind a domain name, set the ing on the Broadband Router, and map the domain name to the machine of the Intranet WEB/FTP server. In this w
ROS IPsecVPN Point-to-end configuration tutorialNetwork Structure: 1. the IPsec VPN Gateway is an ROS router. 2. ADSL is connected to the Internet, and DDNS (Domain Name: ros. ddns. name) 3. The IPsec VPN client uses the shrew VPN client (www.shrew.net) to configure IPsec and shrew client. For details, refer to the ROS IPsecVPN Point-to-site configuration. The key points are Peer and Proposals, for details,
wireless router is equivalent to his brain, we will refresh the DD-WRT firmware for the wireless router, which means brainwashing the device. After brainwashing, our wireless devices will play a better role and support more functions and run more stably. Http://wireless.it168.com)
To put it bluntly brush DD-WRT is to abandon the original device OS, replace a new OS, more or less a bit similar to the hardware enthusiasts commonly used "overfrequency" operation.
Under normal circumstances, we
Transferred from: http://www.right.com.cn/forum/thread-131035-1-1.htmlI rookie, recently in the study of this knowledge, on the basis of reference materials to summarize the following content.This article is for how to configure the Luci interface of OPENWRT open source system!The main three points are as follows:First, the main introduction of how to modify the Luci source code, where to modify;Second, in the Luci How to write a module of their own;Third, Luci implements script commands such as
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