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There is one thing that irritates me the most with computers: the clock. When you think about it, we know how to connect to machines across seas, how to express our feelings to the whole world, and yet, for a long time, my computer’s clock was off by a few minutes. I’ll admit that it isn’t a matter of the utmost importance, but it’s still very frustrating. However, if you use some out-of-the-box distributions like Ubuntu, you’ve probably never experienced this problem, simply because the clock is already configured to synchronize with what is called a time server. The frustrated people are in fact the ones who use distributions that require a bit of configuration at the beginning, like Archlinux. In that case, the synchronization has to be set up manually, using NTP (Network Time Protocol).
First of all, you will need the “ntp” package on your computer. On most distributions, it is installed by default, but you may want to check that you have it or its equivalent. To check, try the commandntpq
And if it is not found, you know that you don’t have the appropriate package.
Now that this is done, the entire configuration is going to be made with the file “/etc/ntp.conf.” All you have to do for an instant result is to modify these lines which are the default ones:server
2.pool.ntp.org Find the addresses of the time servers closest to you on chúng tôi and copy-paste them instead of the default ones. As an example, the addresses for the U.S. are server
Add “iburst” at the end of each server lines. This option will send a “burst” of packets in case the initial connection with the server fails.
So, in the end, if you are in the U.S., your addresses should look like that:server
0.us.pool.ntp.org iburst server
1.us.pool.ntp.org iburst server
2.us.pool.ntp.org iburst server
3.us.pool.ntp.org iburst Synchronization
Now that the servers are correctly setup, you can launch the synchronization process. You may want to first test that the connections are working and that the servers are up. For that, use the commandntpq
If you see something like this, then you’re fine.
Then, the easiest way to synchronize is to add ntp as a daemon. Edit your “/etc/rc.conf” file (or the equivalent, depending on your distribution) to add “ntpd” after your Internet connection daemon. In this case, you will have to blacklist the hwclock daemon. So your chúng tôi file should contain something like:
[Internet connection like wicd
An alternative if you don’t want it as a daemon is to launch the command
And then update your system clock with
Note that in some circumstances, your clock should already be broadly at the right time, but off by a few minutes. The synchronization may not work if your time differs by a couple of hours from the servers’ time.Conclusion
With this, your clock should always indicate the right time. Overall, I find the configuration and the synchronization to be pretty straightforward. It’s still more complex than it is with Ubuntu, but it is the price that those who want more control must pay. Alternatively, systems like Chrony and OpenNTPD offer the same service, and work generally in the same way.
Adrien is a young but passionate Linux aficionado. Command line, encryption, obscure distributions... you name it, he tried it. Always improving his system, he encountered multiple tricks and hacks and is ready to share them. Best things in the world? Math, computers and peanut butter!
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You're reading Using Ntp To Sync Your Clock On Linux
Like anyone who’s ever seen “Pee-Wee’s Big Adventure,” I fervently wish I had a Rube Goldberg machine that made me breakfast for an alarm clock. While vintage PopSci doesn’t have the exact blueprint for that machine, we did cover an alarm-clock attachment that can remotely turn on any electrical appliance, including a stove–meaning you could wake up to the smell of bacon sizzling. Nom.
If breakfast’s not your thing, there are plenty of other tasks you can hack your alarm clock to perform, from watering your lawn to playing music when you wake up. Peruse the archive gallery above for some good ways to put your old alarm clock to use, now that we all use our phones anyway.
Wake-Up Record, April 1920 Pop Sci Archives
Most anyone would prefer waking up to music over a startling, unpleasant beeping or ringing. Before the age of downloadable ringtones, clever DIY-ers still had that option. All they had to do was connect their alarm clock to a phonograph. Setup entails choosing the perfect wake-up music, then clamping the alarm clock’s metal arm to the lever of the record-player just before it touches the disc. When the alarm goes off in the morning, the clock releases the metal arm, the lever touches down and “you are wakened by your favorite musical selection.” Just be sure to change it up once in a while, lest your favorite song be ruined by being associated with waking up.
Force Yourself Awake With Light, August 1920 Pop Sci Archives
“Many people need more than an alarm-clock to wake them from sleep. Some need noise, light and water.” Water seems a bit much, but I can attest to the insufficiency of an alarm alone. I always set mine at least an hour before I actually have to get up, knowing I’ll hit the snooze for at least that long. To combat this problem, we suggested this simple, ingenious hack. Just twist a small piece of wire around the socket-switch finger piece of a lighting fixture, and attach a string to the other end. Wind the string around the alarm clock key (it may take you a few tries to figure out just how tightly to wind it), and when the alarm goes off, it will pull the string and switch on the light, “thereby keeping you awake and assuring you of being in the office on time. It is also useful when taking medicine every few hours.”
Self-Stopping Alarm, March 1931 Pop Sci Archives
This might prove dangerous for those prone to quickly falling back asleep after the alarm stops ringing, but it’s great if you’re a quick riser who wants to endure as little noise as possible: You can hack your alarm clock to stop ringing after 10 seconds. Solder a strip of tin to the alarm-setting handle. Then once the alarm goes off and the key starts to wind, it will hit the tin and push the alarm-setting handle forward far enough to turn off the alarm.
Good Morning, Mr. Breakfast, July 1931 Pop Sci Archives
Alfred C. Alves of San Antonio Texas invented an alarm clock attachment that uses electricity to start a remote appliance. He fitted an electric switch to the side of the alarm clock, so that the uncoiling alarm spring closes the distance between two electric contacts, and turns on the current to a stove, light or whatever appliance you’d like to connect it to. While you don’t necessarily have to use it to cook your breakfast, that’s obviously the best choice.
Set Your Sprinklers, August 1937 Pop Sci Archives
Life’s too short to water your own grass. Attach the alarm mechanism of the clock to the valve of a garden hose using a spring-operated lever. Then, when the alarm goes off, the mechanism will release the lever, turning the hose on or off. Also useful for cruelly soaking the paper boy, if you’re into that sort of thing.
An Alarm Clock Lazy Susan for Lazy People, November 1939 Pop Sci Archives
If, when you wake up in the morning, your arms are simply too weak to lift your alarm clock from your bedside table and shut it off, wait until you regain your strength and then build this mini-turntable and mount your alarm clock on it. Now you can just lazily swivel it back and forth from the comfort of your bed and never have to exert your atrophying arm muscles again. The turntable is made of two faceplate turnings held together by a wood screw. Be sure to attach a piece of antiskid rug to the bottom so the clock doesn’t slide off your nightstand, forcing you to get out of bed.
Clock Closes Bedroom Window, February 1940 Pop Sci Archives
Perhaps the most perplexing alarm clock hack found in the pages of Popular Science is this elaborate setup that will automatically close your bedroom window at a specified time. Cool, yes, but so many questions are left unanswered: Is the closing of the window intended to wake you up? If not, couldn’t you just close it yourself once you got out of bed? Do you only need fresh air while asleep? If you can discern the purpose of this invention and would like to replicate it yourself, use a bolt to hold the window up, and mount an alarm clock just below it. Solder a piece of stiff wire to the alarm-winding key and line it up with the hole in the bolt, so when the alarm goes off, the key turns, sliding the bolt away from the window. Use an iron pipe to weight the window, so it will slide down on its own when the bolt is removed.
Set Once and Forget It, September 1969 Pop Sci Archives
This clock, which GE calls the “Ever-Set,” automatically resets itself every night. If you want to sleep in on the weekends, all you have to do is pull out the pins for Saturday and Sunday, and the alarm won’t go off. At $12, it’s a steal.
Looking for a fancier way to view the time on your jailbroken iOS 9 iPhone or iPad?
AnalogStatus is a new free jailbreak tweak that displays the time in the Status Bar as an analog clock rather than a digital one.
Displaying an analog clock instead of a digital clock is something that can already be done on any Mac, as we once showed in a recent tutorial, but this has never been something Apple has provided as an option on its mobile iOS platform.What’s the point?
For the most part, this is something merely intended to give you a fancier aesthetic. And to be blunt, that’s it.
There is nothing really all that beneficial to having the analog time in your Status Bar over the digital time, and it will take you a little longer to tell the time because of how tiny the icon is and the nature of trying to read the clock while distinguishing the smaller and larger hands apart from one another.
With that being said, yes you certainly can tell the difference between which hand is the hour hand and which is the minute hand, even in such a cramped and small space; the Retina display really helps with that.
In our example above, you can see that the analog clock tells the correct time. While the digital clock in the screenshot says 4:02, you can see the analog clock says 4:03, which is accurate because a minute went by in between taking a screenshot without the tweak installed and with the tweak installed.My thoughts on AnalogStatus
AnalogStatus does not have any options to configure. As soon as you install it, you get the analog clock, and that’s one of the things I noticed right off the bat.
I think I would like the tweak more if there was a gesture (Activator compatibility?) to quickly enable or disable the analog clock, because in some instances where I might be watching the clock for something, I will probably want to see a more fine-grained time reading than what you see after installing this tweak.
Nevertheless, you can always stare at the Clock’s app icon if you’re really hard-pressed to see the actual time in finer detail, or you can still use the Lock screen clock to see a digital time indicator even with this tweak installed.
I would be far less likely to use this tweak on my daily driver because it takes longer to tell the time in scenarios where you’re walking around or are busy multitasking. Spending the extra time to try and read the analog clock can be annoying, although for those where reading analog clocks is a second nature, you still do have to squint a little to read it properly because it’s so tiny.Wrapping up
If you like analog clocks, you can use the AnalogStatus tweak to enable an analog clock in your jailbroken iPhone or iPad Status Bar. The developer notes that it’s guaranteed to work on iOS 9, but hasn’t been tested on iOS 8 or iOS 7.
Also read: miniTime makes the time smaller on the Lock screen
What are your thoughts on an analog clock on your iPhone or iPad’s Status Bar? Cool, or meh? Share below!
Whether you have a busy schedule or just a poor memory, it’s easy to forget appointments, meetings, or even important family events, such as birthdays and anniversaries. If you have an Amazon Alexa account, you can sync your calendars to Alexa and ask her to read your upcoming appointments, remind you about important events, and even add new events to your calendar using voice commands alone.
You’ll learn in this tutorial how to connect your calendar to your Amazon Alexa account and ensure you never forget your anniversary again.How to sync your calendar with Alexa
Regardless of whether you want to add the Google, Microsoft or Apple calendar to your Alexa-enabled device, the initial steps are always the same:
1. Launch the Amazon Alexa app on your smartphone or tablet.
2. In the upper-left corner, tap the “Menu” icon.
4. Tap “Add Account.”
You can now choose which calendar application you want to add to your Alexa account:Link Google Calendar to Amazon Alexa
If you’re a user of Google Calendar, follow these instructions:
1. Tap “Google.”
2. Alexa will now request access to your email and calendar; push each of these sliders into the “On” position.
3. Tap “Next.”
4. When prompted, enter the login details for your Google account.
5. Alexa will now ask for permission to access your emails and calendar; read the onscreen information, and if you agree, tap “Allow.”
Your Google Calendar will now be added to Alexa and will be accessible via your Alexa-enabled device.Connecting Microsoft’s Outlook Calendar
Microsoft’s Calendar is tightly integrated with Outlook, allowing you to easily switch between your inbox and your calendar – perfect for juggling all those incoming email invites!
To add Microsoft’s Calendar to your Alexa account:
1. Tap “Microsoft.”
2. Alexa will now request access to your email and calendar; push these two “Permissions” sliders into the “On” position.
3. Enter the login details for your Microsoft account and tap “Next.”
4. Read the permission requests, and if you agree, select “Accept.”
Your account has now been successfully added to your Amazon Alexa account.Sync Apple Calendar and Enable Two-Factor Authentication
Apple’s Calendar app comes built into macOS and iOS devices and offers full backup functionality via Apple’s popular iCloud service.
To add Apple’s Calendar to Amazon Alexa:
2. At this point, you’ll be asked to set up two-factor authentication for your Apple account. To configure this additional layer of security, tap “Next.”
3. When prompted, launch your iPhone’s “Settings” application.
4. Find your name at the top of the screen and give it a tap.
5. Tap “Password & Security.”
6. When prompted, enter the password for your iCloud account.
7. Tap “Turn On Two-Factor Authentication,” if it isn’t already. If it’s already turned on, skip ahead to step 13 and 14. Skip steps 15 and 16, and pick them up again on step 17.
8. Answer the security questions associated with your Apple account.
9. You’ll now be prompted to enter the details for the credit card that’s registered with your Apple account.
10. When it needs to verify your identity, Apple will send a verification code to your smartphone; enter the number where you want to receive these codes.
11. Tap “Next” and Apple will send a verification code to the number you provided.
12. Enter this verification code into your iPhone.
Next, you’ll need to enter some information into a web browser. To make life easier, you may want to switch to a laptop or computer for this step!
13. Head over to the Apple ID webpage.
14. Enter your Apple ID username and password.
15. Apple will now send a notification to your iOS device. Review the notification, and then tap “Allow” if you agree.
16. A verification code will now appear on your iOS device; enter this code into your web browser.
19. Apple will now use this password to generate a more secure, app-specific password. Make a note of this password.
20. Switch back to your Alexa mobile app, and tap “Add Apple Calendar.”
21. On the subsequent screen, enter your Apple ID.
22. Enter the app-specific password that Apple generated for you in the previous step.
23. Tap “Sign In.”
Your Apple Calendar will now be connected to your Alexa account.Control your schedule from your Alexa-enabled device
Now that you’ve added your Google, Microsoft or Apple Calendar to your Alexa account, you can ask her about your schedule. For example, you can ask:
Alexa, what are my plans for Saturday?
Alexa, am I busy on Monday?
Alexa, do I have plans on August 14th?
Alexa, what’s my schedule for this afternoon?
You can also add an event to your Google, Microsoft or Apple Calendar, by saying: “Alexa, add an event to my calendar.” Alexa will now guide you through the process of adding a new event to your calendar.
Syncing your calendars to Alexa only solves part of the puzzle. You still need to populate it with useful calendars and events to make sure you get notified of important matters.
Jessica Thornsby is a technical writer based in Derbyshire, UK. When she isn’t obsessing over all things tech, she enjoys researching her family tree, and spending far too much time with her house rabbits.
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While M1 Macs are great, they cannot run a Linux distro natively until recently. Asahi Linux, an Arch-based distro, is the first Linux distro specially made for M1 machines, and you can run it natively on Macs with the M1, M1 Pro, and M1 Max chips. Moreover, you can dual boot Asahi Linux to use it without replacing your macOS. In this tutorial, we cover everything, including how to download, install, and even uninstall Asahi Linux.Before You Start
Asahi Linux is still in its Alpha release. As of now, you can’t run it on Mac Studio. Some of the features, like DisplayPort, GPU acceleration, and Touch Bar (for 13” MacBook Pro), don’t work yet.
You can get the complete list of “What doesn’t” work on the official announcement page. Although, in my usage, I found that Bluetooth works just fine, but the official announcement page said it is not working.Installing Asahi Linux
Asahi Linux has a self-explanatory installer. As long as you understand and answer the on-screen prompts, you are good to go.
Note: make sure to keep a backup of your important data before starting the installation process.
To install Asahi Linux, open the terminal on your macOS and run:
Enter your sudo password when prompted. (Your sudo password is your Mac’s user password.) The terminal will prompt you to make sure that you have read the documentation. Press Enter to continue.
A prompt will ask you if you want to enable expert mode or not. You can choose either one. In my case, I am pressing N and Enter to continue with the normal mode. This will show you your username and the basic information about the partitions.Resizing Your macOS Partition
When it asks you to “Choose what to do,” press r and Enter to resize your existing partition and make space for the Linux distro.
A prompt will ask you to set a new size for your macOS. You can use a percentage, storage size, or enter min (which will shrink your macOS to the minimum possible size). For example, you can enter 70% to set your macOS size to 70% of the total space. I am entering “230GB” to make my macOS shrink to 230GB.
You will see how much space you will have freed up after resizing. Press y and Enter to continue and start resizing your partition.
Press Enter when the resizing is completed.Installing Asahi Linux on the New Partition
When prompted with “Choose what to do” again, press f and Enter to install the Asahi Linux in the free space.
You will see the prompt “Choose an OS to install.” Choose the one that suits you best. I am choosing “1” to install Asahi Linux with all the preinstalled apps. Type your chosen number and press Enter.
You will be prompted with the question “How much space should be allocated to the new OS?” As before, you can enter a storage size or percentage of the free space. Entering min and max will allocate the minimum and maximum possible space for the Linux distro. I am entering “max” to allocate all the free space to Asahi Linux. Enter a name for your OS, press Enter and the script will download and set up everything for you. If it asks for the admin credentials, enter your macOS user password.
When everything is configured, you will be asked to press Enter to read the instructions. Read the instructions carefully, which are crucial for successfully booting into Asahi Linux.
Press Enter to shut down your Mac.
Wait 15 seconds for the system to fully shut down, then press and hold your power button until you see “Entering startup options” or a spinner.
You will see a list of volumes on the startup options. Select the volume with your previously-set OS name and select “Continue.”
On the terminal, press Enter to continue the installation process.
You will be asked to enter the password for your username. Use the same username and password if you are prompted again.
Press y and Enter if you are asked whether you want to continue.
Press Enter to reboot, then select Arch Linux from the grub menu to boot into Asahi Linux.Completing Asahi Linux Setup Screen
Once you boot into Asahi Linux, you will see a setup page for Asahi Linux. Set your language, region, time zone, and keyboard layout as you would do with any other Linux distro.
Enter a username, computer name, and password (These can be different from your macOS credentials) and press “Next.”
On the summary screen, press “Set up” to finish the setup. Press “Done” on the Finish screen, which will take you to the login screen.
Use your previously-set password to log in.Installing Packages on Asahi Linux
You can use pacman to install any package for arm64 architecture from official Arch Linux repositories. Learn all about pacman here.
For example, to install chúng tôi run:
and press Y and Enter to confirm.
You can also build a package from the source and install it if you want to.Using macOS and Asahi Linux Together
Asahi Linux is made to run alongside your macOS. However, when you turn your Mac on, it will boot by default into Asahi Linux. To boot into macOS, press and hold your power button until you see “Entering startup options” or a spinner, then select Macintosh HD and press “Continue.”Uninstalling Asahi Linux
You can uninstall Asahi Linux by deleting the partitions for Asahi Linux.
Run diskutil list in your macOS terminal and copy the volume identifier from the line with “EFI” and your Linux OS’s name in it.
In my case, the line is “EFI EFI – MINIX,” and the identifier is “disk0s4.”
To delete the volume, run:diskutil eraseVolume JHFS+ drive
Make sure to replace “YourDiskIdentifier” with the actual disk identifier.
Now open the Disk Utility app. Select “Partition” from the top border and delete the first three consecutive partitions at the end of your Macintosh HD partition.
To delete a partition, select the partition and press the “–” button. Make sure to delete the correct partitions. The first partition’s name will be your Linux OS’s name. The second partition is named “drive,” which is around 500MB. The third partition is the partition for Asahi Linux’s home directory, which will display the home directory’s size of Asahi Linux. (It will be closer to the size of your total allocated storage for Asahi Linux.)
This will open a new window with the partition names you are going to delete. Select “Partition.”
It will take some time, and your Mac may temporarily appear to be frozen, which is totally normal.
Select “Done” when the process completes.Fixing the Boot Screen
Now that you are done with Disk Utility, restart your Mac. On the boot screen, you will see a “Custom kernel failed to boot” warning.
Select “Startup disk.”
Your Mac will continue to start as usual.Frequently Asked Questions Do I need a USB drive to install Asahi Linux?
No. You can complete the installation process without using any external USB drive.Can I install x86 architecture-based packages on Asahi Linux?
No. Asahi Linux is an Arm architecture-based distro, and you can only install packages that have a build for Arm.Can dual-booting macOS and Asahi Linux slow down my macOS?
No. Your Mac will run and allocate resources like CPU and memory for one operating system at a time, so there shouldn’t be a performance drop on macOS.
Muhammad Munna is an Electrical Engineering student who is passionate about technology and writing. He loves to experiment with different techs and dig deep into them. In his free time, he can be found fiddling with his smartphone camera.
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I remember migrating data from one iPhone to another manually after procrastinating it for weeks back in the days when Apple didn’t support synchronization. Yes, I am guilty of using third-party apps to make life easier. Which still wasn’t that simple (or secure?)! Cut to iOS 11 update; Apple enabled iOS Sync to migrate the health data between two iPhones. Phew!
How Health iCloud Syncing Works?
We all know that syncing is different than back-up, but how? Back-up duplicates the information from iPhone to iCloud, whereas syncing merges the newest information between two devices that run on the same Apple ID.
And unlike back-up, an iOS device syncs data multiple times a day; hence it is nearly impossible to lose it. Once you enable Health on iCloud, your record will be revived as if you never reinstalled, restored, or switched to the new iPhone.
Scroll down to see what will be synced to iCloud.
Note: Your iPhone will not include your health data in the regular back-up after you toggle on the iCloud sync. If you decide to stop using the feature, back up all the data to avoid losing it.
What Does iCloud Sync From Your Health App?
Health data – This includes your step counts, walking and running distances, sleep schedule, body measurements, hearing ability, heart rate, nutrition, menstruation cycle, etc.
Activity data from Apple Watch
Activity rings from Apple Watch
Activity achievements – Apple will sync all the achievement badges you earned in the health app.
Sources and connected devices – The health app takes data from different sources and devices and organizes it based on where it comes from. By default, the data is prioritized in this order
Health data that you enter manually.
Data from your iPhone, iPod touch, and Apple Watch.
Data from apps and Bluetooth devices.
How to Sync Health Data to iCloud on iPhone
Go to your Apple ID.
Tap on iCloud.
Scroll down and toggle on Health.
From now on, all your health data will be synchronized. Your health data is directly connected to the Health app. Whatever health information you fill in the app will be synced via iCloud.
So, let’s have a look at how you can add data in the Health App.
Add Data to Health App on Your iOS Device
Launch the Health app.
Tap on Browse in the bottom right corner.
From the Health Categories, pick a category you wish to add data to.
Pick an activity in which you want to add data.
Tap on Add Data in the upper right corner.
Add the measured data and tap on Add to finish the process.
At this point, you can also add health-related information from other apps.
Follow the steps mentioned below to learn how you can do it.
Add Information From Other Apps in Health App
Open the Health App.
In the Summery section, tap on the Profile icon in the upper right corner.
Under Privacy, tap on Apps. Here, you will see Health-compatible apps that you already own.
Tap on an app and turn on the health categories that you want that app to track.
Note: You might also need to open the app and adjust its settings to share data with Health.Relax and Let Your iPhone Sync Health Data to iCloud!
Apple keeps the default setting of the Health syncing feature in iOS devices off due to the medical information’s sensitive nature. However, turning it on is beneficial, especially if you often have to move from one device to another.
Being a tech-nerd with a keen interest in Apple, Mahima loves playing with words to get her readers’ information and a perspective. She particularly loves to write How-to’s, review, comparing, and researching about Tech products. She spends most of her time expanding her tech-horizon by surfing through the web about All Things Apple!
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