Several methods for host remote wake-up (Wol,wake on Lan)

Original sticker: http://atoz.blog.ubuntu.org.cn/?p=140

2007-11-07 Several methods for host remote wake-up (Wol,wake on Lan)Filed in: Hardware, Software-jjheng @ 5:01 pm

Many new PCs (especially those with motherboard-integrated network cards) Now support remote wake-up (Wol,wake on Lan), and remote wake-up enables administrators to automatically turn on their computers. Of course, the host that is awakened remotely needs to have the following conditions: the motherboard (and network card) support WOL function, some machines also need to be set in the BIOS to enable this function, the host in the shutdown state needs to be plugged in, that is, the computer's motherboard and network card is powered state (at this time the entire computer power consumption is very small To be able to listen to the network on their own "wake-up packets", the administrator needs to note the wake-up host network card MAC address (physical address), so that the corresponding method to wake the host;

After determining that you have the above necessary conditions can be different methods (software) to wake up the computer, the specific use of which method should be based on their own needs to choose: First, in Windows can realize the remote wake-up function of the software a lot, this is only the author commonly used two: 1, The format of the wolcmd:http://www.depicus.com/wake-on-lan/wake-on-lan-cmd.aspx wolcmd command for command line mode is: Wolcmd [MAC address] [IP address] [Subnet mask] [Port number] The specified computer can be awakened by using the MAC address directly as a command parameter in the local area network, for example: Wolcmd 009027a324fe

2, graphical interface wake on Lan gui:http://www.depicus.com/wake-on-lan/wake-on-lan-gui.aspx above 2 software are free to use, I prefer to use the command line mode of Wolcmd, You can write a batch file (. bat) or set up a Windows shortcut to perform the Wolcmd command to wake a host of a MAC address.

Second, in Linux can use the WakeOnLAN command to wake the host; 1. The WakeOnLAN package is not installed by default in Linux systems such as Ubuntu and Debian. The WakeOnLAN package needs to be installed via the APT command before use Etherwake: $ sudo apt-get install Etherwake

2, in the Red Hat series of Linux version need to download and install WakeOnLAN RPM software package, the download address is: http://dag.wieers.com/rpm/packages/wol/

Third, in addition to the use of Software (command) to achieve remote wake-up function, some manufacturers of router products in the Web management interface also provides remote wake-up function, such as Iptime (Chung Tang Technology) series of router products in the management interface support remote Wake function, the cheapest model is zc-ip0422, But in Beijing the brand's products are not easy to find. Http://www.iptime.cn/ch_products/ch_ip/ch_ip0422.htm above several methods, basically can meet the system administrator for the host remote wake application requirements, Reasonable use of WOL function can greatly provide the management efficiency of the host system. 2 Reviews»

This remote or the same LAN, it seems that there is no way to remotely power on the Internet.

Reviewed by author Hatoyu-2008-12-15 @ 5:19 pm

The meaning of the Wake on LAN is naturally the wake-up of the host in the LAN, but if the gateway server is Linux, you can ssh into the gateway and then use the WakeOnLAN command to wake up the host in the same subnet as the gateway.

In addition, some broadband routers also provide WOL functionality in the Web management interface, such as IP time 0422.