If I double-click the.app file/folder, the app just bounces in the dock for a while, eventually stops, and nothing happens (other than the fans spinning like crazy). So clearly the OS is doing something different when it tries to run the app from the.app file vs. Directly from the executable within. Editing the hosts file. Editing the hosts file in Mac OS X is a pretty easy task, especially if you are familiar with the terminal. 1 Open the Terminal.app Either by typing 'Terminal' in Spotlight, or by navigating to: Applications Utilities Terminal. 2 Open the hosts file.
Introduction
The hosts file..
- doesn't have an extension, its just called hosts.
- is a text file that maps hostnames to IP addresses.
- is located at /etc/, which is a symbolic link to /private/etc/
- is checked before the active network connection's DNS servers.
- plays an important role in managing an Avaya 7.5 system (and beyond).
Editing the hosts file
Editing the hosts file in Mac OS X is a pretty easy task, especially if you are familiar with the terminal.
1Open the Terminal.app
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Either by typing 'Terminal' in Spotlight, or by navigating to: Applications ➤ Utilities ➤ Terminal
2Open the hosts file
Open the hosts file by entering the following command in the Terminal window you've just opened:Enter your (admin) user password when prompted.
3Edit the hosts file
The hosts file contains some comments (lines starting with the # symbol), as well as some default hostname mappings (one per line), entered as IP address followed by one or more hostnames (e.g. 127.0.0.1 localhost).
Append your new mappings underneath the existing ones. Navigate using the arrow keys, leave space between fields, and make sure there is an empty blank line after the last entry. Here we'll add ucm0.pbxbook.com:
We can also use the hosts file to block access to websites! Make an entry like: 127.0.0.1 facebook.com to locally block facebook (for example), or enter: 157.166.226.25 facebook.com to direct facebook requests to cnn.com.
4Save the hosts file
When done editing the hosts file, press Ctrl-o to save the file.Press enter on the filename prompt to leave it unchanged, and Ctrl-x to exit the editor.
You can now test your new mapping with
ping mypbx.com
, or by entering the URL in a browser window!5Flush the DNS cache
If your changes don't seem to have taken effect, use one of the following commands to flush the DNS cache.
- Mac OS X 10.9, 10.10, and macOS Catalina:For older OS X versions, refer to: https://support.apple.com/en-ca/HT202516Use
dig
, ornslookup
with a URL to see if it's resolved.Free data recovery mac. Feb 19, 2020 EaseUS Data Recovery Wizard for Mac Free is one of the free top and handy Mac data recovery software that enables you to recover data from the emptied trash bin, Mac notebooks, desktops, hard drives, USB drives, SD cards, memory cards, digital cameras, etc. PhotoRec Data Recovery is a free data recovery tool for your Mac. It is able to recover data that was lost due to a variety of reasons. It offers users 8 recovery modes for users to support you restoring Mac files lost due to deletion, formatting, lost partition, virus attack and system crash.
The standard hosts file:
If you need restore the hosts file, here is the original:
To restore, the above, open Terminal, and type:
sudo pbpaste > /etc/hosts
Xhost
How to make the internet not suck (as much)
If you like the idea of locally blocking access to certain websites, have a look at http://somebodywhocares.org and their custom hosts file. In their own words, 'This is an easy and effective way to protect you from many types of spyware, reduces bandwidth use, blocks certain pop-up traps, prevents user tracking by way of 'web bugs' embedded in spam, provides partial protection to IE from certain web-based exploits and blocks most advertising you would otherwise be subjected to on the Internet.'
Download their custom hosts file, rename and copy it to /etc/hosts.love
Install by swapping the active and inactive files (remember, the active file is always hosts):
Install by swapping the active and inactive files (remember, the active file is always hosts):
Mac Os X Host File
Or, write the hosts file directly with
curl
, for example (remove '/ipv6' for IPv4 only version): And flush the DNS cache to activate the new hosts file:
Once installed, you'll find that your surfing experience improves, your breath becomes more lovely, and the world transforms into a gentle place full of unicorns and love. If this is your thing, check back with the site regularly for the latest updated download.
Stealth Mode
OS X has a built-in Firewall, and one of the options is Stealth Mode. If this option is checked, the Mac will not respond to PING's.
To allow a network PING response (including localhost):
- Open: System Preferences ➤ Security & Privacy ➤ Firewall ➤ Advanced.
You may have to authenticate (click the padlock) with your Admin password to enter the Advanced features. - Uncheck Enable stealth mode.
Mac Os X Host File App Free
Don't forget to re-enable stealth mode when you connect to the internet.