Keep It Alive (hexa3) Mac OS

Unfortunately, there is no option for this client-side in terminal. You'd have to either adjust keep alive packets on the server to which you're connecting or have some kind of program in the background that generates traffic to maintain the tunnel. If this is a linux machine, you could edit. However, It really took me a long time to find out how to work it out under MAC OS X. Somebody suggested me to turn to netinet/tcpvar.h, but still none of the aforementioned MACRO was found. So, my question is, How to implementation TCP KEEPALIVE under MAC OS X? P.S.: my MAC OS X version is 10.8.3,and my gcc/g version is 4.2.1.

Does your Mac go to sleep when you are downloading a file or backing it up? Do you want to keep your Mac from sleeping? Okay, there are three easy ways to do so. The first one is using the energy-saver feature, second is to use the terminal, and the third is using a third-party app. All of these methods are straightforward. So, let us dig right in and see how to stop your Mac from sleeping.

Prevent Your Mac from Sleeping Using Energy Saver

  1. Click on the Apple logo from top-right → Click on System Preferences.
  2. Click on Energy Saver.Note: If you are on a MacBook, you will see two tabs here: Battery and Power Adapter. You can follow steps 3 and 4 below for both Battery power and while your MacBook is charging.
  3. Drag the Turn display off after slider to Never → Select Ok from the popup.
  4. Next, tick the box for Prevent computer from sleeping automatically when the display is off.

Now, your Mac will not go to sleep. If you wish to turn off this feature, follow the above steps, and drag the slider to the left and set the time according to your preference. Now, you Mac will sleep after the set period of inactivity.

RELATED: How to Keep MacBook from Sleeping With Lid Closed

Prevent Mac From Sleeping Using Terminal App

  1. Go to Applications folder → Utilities → and open Terminal.Or press Command (⌘) + Space Bar to open Spotlight Search and type Terminal.
  2. Type one of the following Terminal commands according to your preference and hit the enter
  • caffeinate -d To prevent the display from sleeping
  • caffeinate -i To prevent the system from idle sleeping
  • caffeinate -m To prevent the disk from going idle
  • caffeinate -s Keep the Mac awake while it is plugged into AC power
  • caffeinate Now, your Mac will stay awake for as long as you leave the Terminal running. To stop this, use the keyboard shortcut Ctrl+C
  • caffeinate -t 1800 & Here 1800 is the time in seconds. You can set it to anything. Now your Mac will stay awake for this time duration

The above commands run as long as you leave the Terminal app running.

Using Third-party Apps

  1. Download Amphetamine from the Mac App Store.
  2. Open the app and click on Next. You can read and click Next on all subsequent screens to learn more about this app.
  3. Click on two half-circle icon (that looks like a pill) from the top menu bar.
  4. Click on Indefinitely. Now you Mac will never sleep.
  5. Now, Click on the Amphetamine app icon from the top menu bar and then click on End Current Session.

Other Apps That Prevent Your Mac From Sleeping

Amphetamine is potent (and popular). However, your choices are not limited. Some other great apps that keep your Mac from sleeping are:

That’s all, mate!

Keep It Alive (hexa3) Mac Os X

Signing off… Axefetchem mac os.

These were the easy ways to keep your macOS device from sleeping. Now you can peacefully continue to download big files, backup the Mac, or prevent the screen from dimming when you are not watching a video in full screen. I hope this tutorial was helpful, and you learned something new.

You may also like to take a peek at:https://bikessoftware.mystrikingly.com/blog/briefly-odyssey-mac-os.

Which method are you going to use? System Preferences, any App, or Terminal? Please share your thoughts with us in the comments down below.

I admit it, I’m always with a lot of applications opened, Chrome with at least 6 tabs, Skype, Slack, PHPStorm or SublimeText, Airmail or Outlook for Mac, Photoshop and terminal.

Keep It Alive (hexa3) Mac OS

I regularly login via SSH to VPS in Digital Ocean and AWS EC2 and then run some commands like:

Then I go to the wordpress site and start adjusting the settings, but by the time I get back to the terminal (5 – 10 minutes), the SSH session is frozen, so I’m forced to open a new one. I honestly became tired of this, and I remembered that SSH was built on TCP and as such it should have some “Keep Alive” settings like on SIP (sorry I come from the call center world). And after some search online, I found that you can make this change both from the server side (SSHD: Secure SHell Daemon) or from your CLI (*nix, Linux & Mac).

Reduce SSH Timeouts from the server

Keep It Alive (hexa3) Mac Os Download

Reduce SSH Timeouts from your computer

All you need to do is to setup your ssh client to send a “Keep Alive” signal to the server every certain amount of seconds. So you can add the following text to your ~/.ssh/config file:

This basically tells your computer to send “keep alive” signals to remote-host.com every 120 seconds (2 minutes). That way the session will not get frozen for that server.

If you want to enable this for all of the hosts that you connect to, then simply add the following strings instead:

This will setup the “keep alive” signal interval to 2 minutes for any host that you connect to via SSH.

After you finish editing the file, please make sure to change the permissions on the file using the following command: Xbox 360 games on ipad.

And there you go, as simple as that! No more timeouts on my terminal app on my Mac OS El capitan MBP!