1. Sep 26, 2017 To block applications from accessing the Internet you will be required to create an outbound rule, so, click on the 'Outbound Rules' list item from the left panel (see image) and then click on the 'New Rule' option on the right side.
2. How to block a Mac OS X application from accessing the internet? You know, in a Mac, all apps are openly connected to the internet and visibly there is no wa.

I don't have a command line solution to do so, but there is an application that can successfully do exactly what you want. Little Snitch is an application that has the ability to block certain processes and monitor connections. You could use this to block the iPhone simulator process from any network connectivity which would achieve the same effects as airplane mode, minus the native airplane.

If you've followed the steps to connect your Mac to a Wi-Fi network, but the connection to your network or the Internet isn't reliable, the steps in this article might help.

Check for Wi-Fi recommendations

When your Mac tries to connect to a Wi-Fi network, it checks for issues that affect its ability to create a fast, stable, and secure connection. If an issue is detected, the Wi-Fi status menu in the menu bar shows a new item: Wi-Fi Recommendations. Choose it to see recommended solutions.

Wi-Fi recommendations are available in macOS Sierra or later.

Analyze your wireless environment

Your Mac can use Wireless Diagnostics to perform additional analysis.

1. Quit any apps that are open, and connect to your Wi-Fi network, if possible.
2. Press and hold Option (Alt) ⌥ key, then choose Open Wireless Diagnostics from the Wi-Fi status menu .
3. Enter your administrator name and password when prompted.

Wireless Diagnostics begins analyzing your wireless environment:

If the issue is intermittent, you can choose to monitor your Wi-Fi connection:

When you're ready to see recommendations, continue to the summary. Wireless Diagnostics asks for optional information about your base station or other router, so that it can include that in the report it saves to your Mac.

Click the info button next to each item in the summary to see details about that item. Wi-Fi best practices are tips that apply to most Wi-Fi networks.

Back up or make note of your network or router settings before changing them based on these recommendations—in case you need to use those settings again.

Monitor your Wi-Fi connection

Your Mac can monitor your Wi-Fi connection for intermittent issues, such as dropped connections. Follow the steps to analyze your wireless environment, but choose ”Monitor my Wi-Fi connection” when prompted.

During monitoring, a window shows that monitoring is in progress. Monitoring continues as long as this window is open and you're on the same Wi-Fi network, even when your Mac is asleep.

If Wireless Diagnostics finds an issue, it stops monitoring and shows a brief description of the issue. You can then resume monitoring or continue to the summary for details and recommendations.

Create a diagnostics report

Wireless Diagnostics automatically saves a diagnostics report before it displays its summary. You can create the same report at any time: press and hold the Option key, then choose Create Diagnostics Report from the Wi-Fi status menu . It can take your Mac several minutes to create the report.

• macOS Sierra and later saves the report to the /var/tmp folder of your startup drive, then opens that folder for you.
  To open the folder manually, choose Go > Go to Folder from the Finder menu bar, then enter /var/tmp.
• OS X El Capitan or earlier saves the report to your desktop.
  

The report is a compressed file with a name that begins “WirelessDiagnostics.” It contains many files that describe your wireless environment in detail. A network specialist can examine them for further analysis.

Use other diagnostics utilities

Wireless Diagnostics includes additional utilities for network specialists. Open them from the Window menu in the Wireless Diagnostics menu bar:

• Info gathers key details about your current network connections.
  
• Logs enables background logging for Wi-Fi and other system components. The result is saved to a .log file in the diagnostics report location on your Mac. Logging continues even when you quit the app or restart your Mac, so remember to disable logging when you're done.
  
• Scan finds Wi-Fi routers in your environment and gathers key details about them.
  
• Performance uses live graphs to show the performance of your Wi-Fi connection:
  • Rate shows the transmit rate over time in megabits per second.
  • Quality shows the signal-to-noise ratio over time. When the quality is too low, your device disconnects from the Wi-Fi router. Factors that affect quality include the distance between your device and the router, and objects such as walls that impede the signal from your router. Learn more.
  • Signal shows both signal (RSSI) and noise measurements over time. You want RSSI to be high and noise to be low, so the bigger the gap between RSSI and noise, the better.
• Sniffer captures traffic on your Wi-Fi connection, which can be useful when diagnosing a reproducible issue. Select a channel and width, then click Start to begin capturing traffic on that channel. When you click Stop, a .wcap file is saved to the diagnostics report location on your Mac.

Learn more

Additional recommendations for best Wi-Fi performance:

• Keep your router up to date. For AirPort Time Capsule, AirPort Extreme, or AirPort Express Base Station, check for the latest firmware using AirPort Utility. For non-Apple routers, check the manufacturer's website.
• Set up your router using Apple's recommended settings, and make sure that all Wi–Fi routers on the same network use similar settings. If you're using a dual-band Wi-Fi router, make sure that both bands use the same network name.
• Learn about potential sources of Wi-Fi and Bluetooth interference.

Learn about other ways to connect to the Internet.

Remote access to Mac, anywhere

While many countries are on a lockdown due to COVID-19, remote work is becoming a lifestyle. Remotely accessing a Mac is designed to be easy. Apple has spent a lot of time ensuring anyone can log in to their Macs — both desktop and laptop — from any other Mac device, anywhere. And, besides, there are a variety of third-party apps ready to help with that too.

Still, remotely managing their Mac sounds overly complicated to a lot of people. From how you connect to sharing files or screens to using your Apple device as a remote mouse, we want to demystify the process in the easy-to-follow guide below.

Best Remote Access Apps for Mac

There are times when you want to access your Mac remotely, and there are many different solutions to remote access your Mac. Best utilities in one pack, give it a go!

How to access your Mac from another location

There're two ways: you can allow remote login to your Mac from another computer, or allow others to access your computer using Remote Desktop (it's available from the App Store).

Allow remote login to your Mac from another computer

For devices using the same macOS, you can allow remote Mac login using a Secure Shell (SSH). This enables Mac remote desktop access using a Secure File Transfer Protocol (SFTP).

To set up Remote Login:

• Go to System Preferences > Sharing
• Select Remote Login.
• Choose which users you want to have remote access or the ability to control your Mac.

You can either select All Users, which means any other device on your network, or any Mac you own, can access and connect, or click the plus sign to pick the exact users.

When you want to remotely log in to your Mac from another device, you need to know your username (the name that appears when you login) and your computer's IP address. Write them down and keep them safe, as allowing access to your Mac does make it potentially less secure, especially over cellular or public Wi-Fi networks.

Accessing, controlling, or viewing information on your Mac can be done with a built-in Terminal or any other SSH app using your username and IP address.

Allow others to access your computer using Apple Remote Desktop

With macOS remote Mac access and control is even easier. To set up it:

• Go to Menu > System Preferences > Sharing
• Select Remote Management - it should appear as a checkbox.
• Now you can select who has remote desktop access. Either select, All Users, which means any other device on your network, or Mac you own, can access and connect, or click the Add button(+), which gives you the ability to select who can have remote access and/or control.

If you are using a VPN or VNC viewer and want to access your Mac remotely, you will need to setup a password first. It is also possible to use iOS devices, such as an iPhone and iPad, through Apple Remote Desktop, available from the App Store.

How to stay on the same page with Screens

Collaboration has become of utmost importance to today's workplaces. And with more and more people working remotely, being on the same screen (ahem, page) is a must.

Screens allows you to work remotely with any computer regardless of your location. Whether you are on a business trip or traveling, stay confident knowing you can access any file on your home computer at any time.

This robust screen sharing tool for Mac supports:

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• Multiple displays
• Drag-and-drop file sharing
• Hiding your remote screen while accessing it
• Accessing other computers (e.g. colleague's) as a guest
• Alternative shortcuts (useful when connecting Mac to PC)
• Custom actions in case of disconnection

To start using Screens, get the app from Setapp and configure the following:

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1. Remote login and remote management (as per the guide above)
2. Install Screens Connect helper app and create a Screens ID on every machine you'd like to connect to in the future
3. Use your Screens ID in the Screens app and it will automatically determine which of your computers are available for connection

Remote desktop client for Mac

Control any computer remotely – a perfect way to access your Mac from anywhere without limitations.

Share files between devices

Today we have plenty of ways to send and share files. But ask someone to send something, and you are likely to get it through email. Due to the ubiquitousness of email, it's still the default method for file sharing, despite its obvious flaws and constraints.

Fortunately, there are much better ways:

Native macOS File Sharing

Few people know that their Mac has native file sharing functionality built in. To use this feature, activate it in the Sharing pane of System Preferences by checking File Sharing. If you only want to share specific folders, add them to the Shared Folders list. If you only want specific users to access the folder, add them to its Users list. Otherwise, everyone will be able to access it.

AirDrop

Although not the most reliable solution, AirDrop works fine for occasional sharing a file between Apple devices. In the Finder, choose Go and then AirDrop on both the sending and receiving Mac. As soon as you see the receiver's user icon, drag the desired file onto it to send.

Read more about how to use AirDrop

Dropshare

If you don't want to send files Mac-to-Mac directly but rather through a cloud storage, there is no easier way than Dropshare. The app works with numerous cloud providers, from Dropbox to Google Drive, and saves your files for sharing by simply dragging them onto its menu bar icon.

File Transfer Protocol (FTP)

The most technical but also the most robust way to share files from your mac is to use FTP, which you could do either through Terminal or an FTP Client, the latter being much more user friendly.

There are a few popular FTP clients one could choose from. The robust file managing app ForkLift covers most of the FTP functionality but takes it to the next level and could be a viable replacement for the Finder altogether with its quick search, instant previews, and file comparison.

DCommander is another full-featured file transfer app for Mac that combines speed and reliability, able to handle thousands of files, schedule backups, and even automate transfers.

At last, when it comes to sharing the same files on different devices, an app like ChronoSync Express becomes invaluable.

ChronoSync Express is powerful tool for sharing and transferring files from Mac to Mac, or any another Apple device. With a feature called Synchronizer Document, you can select which files need to be automatically synchronized and shared between devices, just like that:

1. Create a new synchronizer document for each folder synchronization you'd like to perform
2. Name the synchronization
3. Change the Operation to Synchronize Bidirectional
4. Select folders to sync on the left and right
5. Test with a Trial Sync

Do you need to use a VPN (Virtual Private Network)?

Whether you are working on your Mac directly, logging into your Mac remotely, or sharing access with someone else, security should be on top of your mind.

As a rule of thumb, you should always use a VPN when connected to a public Wi-Fi network, as someone could log in and see the information you send just as easily as you do.

And with remote access — even in the View Only mode — someone can see every file and document on your Mac, except those that are password protected. Unfortunately, if you leave passwords in a visible document, you expose yourself to immense risks.

A secure VPN client for Mac like Shimo is well worth using to stop unwanted eyes from lurking around, especially if you are sharing sensitive files, financial records or customer data.

However, for extra peace of mind and security, consider firing up your VPN automatically on all networks you are not 100% sure about to keep your emails, bank accounts and personal documents safe.

To share your Mac with someone else, download a remote Virtual Network Computing (VNC) app like Jump Desktop. With full remote access and Mac remote control, the other person — or yourself connecting to another Mac — can have the same level of control as the person using that device. Except for Admin level access, since it's password protected.

Starting with Jump Desktop is easy: either yourself (gaining access) or the person you are giving a remote view or control access to your Mac, needs to add details of the device and the password.

Secure your access with VPN

Get a VPN client for Mac to avoid privacy infringement while connecting remotely. It's secure and free to try.

Once permission is granted at the other end, remote Mac screen sharing or control (whereby you can use the iOS device as a remote mouse) becomes possible.

How to use your iOS device as a remote mouse

If your remote work starts on a patio hammock somewhere in east Asia, you should note that Apple iOS devices, such as an iPhone or iPad, can be used to control a Mac remotely, much like a mouse can control a desktop or laptop. Apps that make this possible work on VNC.

Remote Mouse is the easiest, most effective way to turn your iOS device into a wireless remote control for your Mac.

Mac Apps Accessing Internet Settings

Although remote access through a local network would be most effective, since the closer you are to the device the quicker the connection, it's also possible from anywhere in the world, providing the network is secure and fast enough.

Best graphic design apps mac. 1 day ago  The result is that the Mac’s instant messaging app is more robust and works just like it does on the iPhone and iPad. Here’s an overview of Messages in Big Sur.

Setting up and granting access to the iOS device is the same process as when someone wants to access using a Mac. Except you need to give them a password. And make sure it is different from your primary Mac or iOS (App Store) one.

So working together or checking on your devices can be done from anywhere in the world and there are lots of ways to do that, from sharing screens and files to having complete access to a system set up far away. Setapp equips you with all the apps needed to remotely access any device you need and elevate your work to the global level.

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Meantime, prepare for all the awesome things you can do with Setapp.

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