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how to connect from mac to centos using ssh private/public keys (video)

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Requirements:

  • Access to your centos machine
  • Mac OS X v. 10.9.x
  • Basic command line knowledge
  • A virtual or physical machine running centos connected to your network or with internet access

centos

Video / Text:

Using encrypted keys for authentication offers two main benefits. Firstly, it is convenient as you no longer need to enter a password (unless you encrypt your keys with password protection) if you use public/private keys. Secondly, once public/private key pair authentication has been set up on the server, you can disable password authentication completely meaning that without an authorized key you can’t gain access – so no more password cracking attempts. 

It’s a relatively simple process to create a public/private key pair and install them for use on your ssh server. 

First, create a folder called .ssh in your home directory and cd into it (make sure you also have it on the server in the home directory of the user you are connecting with):

$ mkdir ~/.ssh; cd ~/.ssh

Second, create a public/private key pair on the client that you will use to connect to the server (you will need to do this from each client machine from which you connect):

$ ssh-keygen -t rsa -C "Name Surname" -f name

Replace “Name Surname” and “name” with your name. This is to give it a bit of personalisation. For my example here I will use it like this:

$ ssh-keygen -t rsa -C "TheiNoob Tutorials" -f theinoob

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how to enable/disable root user account on Mac OS X Mavericks video

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Requirements:

  • Mac OS X v. 10.9.x
  • User account with admin privileges.

Video / Text:

  1. Go to Apple menu
  2. Select “System Preferences”
  3. Go to “Users and Groups” preference pane
  4. Click the lock icon and put your password in
  5. Click “Login Options”
  6. Click “Join…” button
  7. Click “Open Directory Utility…” button
  8. After the Directory Utility app is open make sure it is selected
  9. Click the lock icon and put your password in
  10. Go to “Edit” menu and select “Enable root user”

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how to configure NFS automount for use with managed user accounts on mac os x snow leopard server 10.6.x

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Requirements:

  • Mac OS X Server 10.6.x computer, configured and running.
  • Following services configured and running: AFP, NFS, DNS, OpenDirectoryMaster, Firewall service configured so that AFP and NFS get thru the firewall.

Text:

First login to the server using an administrator user account.

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how to always open an application on the same desktop on Mac OS Maveriks

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Requirements:

  • a mac computer running Mac OS 10.9.x

Text / Photo

  • open mission control from system preferences
  • uncheck the option “Automaticaly rearrange spaces based on most recent use”

Mission_Control

 

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how to see size of the content of a folder on mac

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Requirements:

  • a mac computer.

Text / Photo:

  • open a folder and set list view
    • click view and select “as List”, or press key combination shortcut “key + 2″
  • go to view menu and select “Show View Options”, or press key combination shortcut “key + j
  • in show view options window check the “Calculate all sizes”.

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