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A friendly guide to updates in CentOS

Step 1: Start with the Terminal

Open up the terminal – that little space where you can do big things! It’s like having your personal magician who can work wonders with just a few simple commands. Find it in your menu or hit Ctrl + Alt + T to bring it up.

Step 2: Check for Updates

It’s time to see what surprises today has in store! Type with confidence:

sudo yum check-update

This command will look for the latest updates available for your system and bring you all the news.

Step 3: See What’s New

Let’s see what’s on the list! Run the command:

sudo yum list updates

Here you’ll see a list of all the packages that are ready to have a little update party on your system. Give them a little wave!

Step 4: Update Everything

It’s time to get the party started! Type:

sudo yum update

This will take all the updates you’ve selected and install them for you. It’s like giving your system a new lease on life!

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A friendly guide to updates in Linux

Step 1: Start with the Terminal

Open up the terminal – that little space where you can do big things! It’s like having your personal magician who can work wonders with just a few simple commands. Find it in your menu or hit Ctrl + Alt + T to bring it up.

Step 2: Check for Updates

It’s time to see what surprises today has in store! Type with confidence:

sudo apt update

This command will look for the latest updates available for your system and bring you all the news.

Step 3: See What’s New

Let’s see what’s on the list! Run the command:

sudo apt list --upgradable
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Graded Naming Convention and Documentation

You can easily provide groups of users with unwanted access if you do not use descriptive security group names. For example, the accounting department just purchased a SaaS based accounting program. It can sync with Active Directory for single sign-on and permissions. The administrator created an Accounting_1 and Accounting_2 group to manage access to the software. Accounting_1 is full access and Accounting_2 is limited. Both groups are generic and have no description or documentation.

The accounting department also needs a shared folder setup so they can share and collaborate on some files. The administrator thinks, oh I’ve already got accounting groups configured, and therefore proceeds to use Accounting_1. Users are added to Accounting_1 to provide access to the NTFS share, but unfortunately this now grants users full access to the SaaS accounting program.

Bad Security Group Names

The groups below are examples of bad security group names because there is no description and are generic, telling the administrator nothing. You would have to scan the entire network to know where these groups are being used.

Good Security Group Names

In the examples below you can look at the group name and instantly know what it is used for and there is information in the description box.

Do not create generic security group names, instead be descriptive in their use and use the description field.

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