![]() To make it simpler to use wakeup.exe from within a Cygwin session, I just created a little script in the Cygwin bin directory, one that included the MAC address of the machine in question: $ echo "/cygdrive/c/bin/wakeup. I could then SSH into the box and do my wacky bit of science. ![]() You can get the MAC address in many ways, but an easy one is to run ifconfig on the server (may need to be root): c:\bin\> wakeup 00:25:F3:C9:98:F8Īt the prompt and… bingo. I mean, who needs a GUI for this kind of thing!Ĭopied wakeup.exe into my bin dir - no need for admin, which is good - and ran it - note that 00:25:F3:C9:41:F8 is the MAC address of the Ethernet card on the server in the shed, and the BIOS is set to allow WOL. (Better things to do.) If does not work out of the box … into the bin! PS> Uninstall-Module -Name WakeOnLanįound a utility described as ‘a bit old’. On my old laptop, that takes a while! It installed but did not work - did not even run. Found a couple of options.įollowing … PS> Install-Module -Name WakeOnLan I don't think other users of powerDownCommands need things to run preshutdown so the simplest way forward would be to rename it to presleepCommands (to echo resumeCommands) and call it a day - someone who needs powerDownCommands the way it should be can just add it as I suggested (with an extra service on top) the day it becomes necessary. I looked for but did not see anything in the Cygwin repository. The laptop runs Windows 10, and I use Cygwin on Windows. Wake on LAN es una tecnología que nace con el fin de encender ordenadores de forma remota a través del software. So let’s assume the box was put to sleep using the pm-suspend command. So, the simple plan is to install pm-utils on the box (Devuan) and use a wake-on-LAN (WOL) utility on the laptop. Now, suspending does not zero power use, but does cut it down a lot. The idea is that we don’t want the fan and suchlike making noise in the house when the machine runs overnight, so it is in the shed, but I also don’t want it wasting electricity by running when not needed. I want to be able to control it from my laptop. I've already posted on the correct way to do it here.I have a Linux box in the shed that I want to be able to log in to using SSH to run numerical calculations. I've only used it in a LAN environment, not WAN. That said, it can be quite bothersome for people who want their servers to wake and return to operation. It is complicated, there is good and bad info in here, and yet I've gotten it to work in every HP workstation or business class desktop I've tried. 2 Answers Sorted by: 2 The Wake-on-LAN feature is a hardware setting rather than something the OS controls, so it technically makes sense that the machine remains suspended when receiving the magic packet. You need to turn off some of the defaults to force the box to accept the energy inefficiencies so that WOL can work.Īnd, of course, the later workstations/business class boxes have some European energy settings thrown in that you need to take into account. Wake on LAN is inherently energy inefficient. The basic idea: HP factory default settings are optimized for functionality and energy efficiency. After you get it working then you can carefully add back in the fine tuning to drop boot times, etc. And, the differences between HP workstations and HP business class computers needs to be taken into account.įactory defaults is a good point to start from but you specifically need to change from those in the process. Then, the HP workstations changed over time, both in hardware and BIOS software. ACPI S3 suspend) while the wireless NIC remains active and does varying things for the host, e.g. On the other hand Linux WoW documentation clearly says: Wake on Wireless is a feature to allow the system to go into a low-power state (e.g. ![]() There are BIOS things you have to get right and also OS things. On one hand tutorials, like on HowToGeek or LifeWire, make it sound like suspend is not necessary. ![]()
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