Ansible Lab – Testing Connectivity

In the previous post, we set up an Ansible server and a CentOS 7 node to begin our automation journey. Now that we have our Ansible server and a test node, we can start testing connectivity and running commands on the Ansible server.

Creating an Inventory File

Ansible requires an inventory file, a list of nodes that it needs to manage. Let’s create a simple inventory file and a folder to store it in.

Enter the following commands:

“`

mkdir -p ~/ansible/inventory

touch ~/ansible/inventory/hosts

“`

The `mkdir` command creates a new directory called `ansible/inventory`, and the `touch` command creates a new file called `hosts` in that directory.

Creating a Basic Inventory File

Let’s create a basic inventory file with one host, our test node `snransl01.sonar.lan`. Open the `hosts` file in your favorite text editor:

“`

nano ~/ansible/inventory/hosts

“`

Add the following line to the file:

“`

[snransl01]

localhost ansible_user=root ansible_password=

“`

Replace `` with your root password for the test node.

Specifying the Inventory File

When we use the Ansible CLI, we need to specify the inventory file. Let’s try running our first Ansible command:

“`

ansible -i ~/ansible/inventory/hosts snransl01 -m touch /home/root/test_file

“`

The `-i` flag specifies the inventory file, and `snransl01` is the host we want to execute the command on. The `-m` flag specifies the module we want to use (in this case, `touch`). The `/home/root/test_file` is the path where Ansible will create a test file.

Host Key Checking is Enabled

If you try to run the previous command, you’ll encounter an error stating that Host Key Checking is enabled and SSH Error. This is because Ansible needs to add the host’s SSH fingerprint to its known_hosts file.

Adding the Host SSH Fingerprint

We can add the host’s SSH fingerprint to the known_hosts file in two ways:

1. Accept the fingerprint when prompted during an SSH connection.

2. Use the `ansible-doc` command to obtain the fingerprint and store it in the known_hosts file.

Let’s use the second method. Enter the following command:

“`

ansible-doc -t ssh snransl01 | awk ‘/ssh/ {‘print $3’} | tr -d ‘n’ > ~/ansible/inventory/known_hosts

“`

This command obtains the SSH fingerprint for `snransl01` and stores it in the known_hosts file.

Executing a Command on the Test Node

Now that we have added the host SSH fingerprint to the known_hosts file, let’s test executing a command on the test node. We’ll use the `touch` module to create a file on the node:

“`

ansible -i ~/ansible/inventory/hosts snransl01 -m touch /home/root/test_file2

“`

If everything is set up correctly, execution of this command will result in a file being created on the test node. You’ll also see a message stating that the test node has been changed on the Ansible server.

That was pretty simple, wasn’t it? Our first Ansible command creates a file on our test node!

Conclusion

In this post, we tested connectivity between the Ansible server and our test node, added the host SSH fingerprint to the known_hosts file, and executed our first Ansible command. We demonstrated how to create an inventory file, specify the inventory file when using the Ansible CLI, and how to add the host SSH fingerprint to the known_hosts file.

Stay tuned for the next post where we’ll explore more advanced features of Ansible, such as group management and idempotency.

VMware vSphere 8 Security Configuration Guide: The Ultimate Reference for Virtualization Security

In the world of virtualization, security is a top priority for organizations to protect their infrastructure from various threats. VMware vSphere 8 is one of the most popular virtualization platforms, and it comes with a comprehensive security configuration guide that helps administrators harden and audit their vSphere environments.

The VMware vSphere 8 Security Configuration Guide is a must-have resource for any administrator who wants to ensure the security of their virtual infrastructure. This guide provides detailed information on how to configure and secure vSphere 8, including best practices for securing virtual machines, networks, and storage.

The guide is regularly updated by VMware to reflect the latest security updates and advancements in the field. The current version of the guide is 802-20231005-01, which was released on October 5, 2023. This version replaces all previous versions and instructions, making it the ultimate reference for vSphere 8 security configuration.

The VMware vSphere 8 Security Configuration Guide includes several artifacts that can help administrators secure their vSphere environments. These artifacts include:

1. Security Configuration Guide: This guide provides detailed information on how to configure and harden vSphere 8, including best practices for securing virtual machines, networks, and storage.

2. Security Hardening Checklist: This checklist provides a comprehensive list of security measures that administrators can implement to harden their vSphere environments.

3. Security Patch Management Guide: This guide provides information on how to manage security patches for vSphere 8, including how to identify and apply patches.

4. Compliance and Configuration Reports: These reports provide detailed information on the security configuration of vSphere 8 environments, including any potential vulnerabilities or compliance issues.

The VMware vSphere 8 Security Configuration Guide is available for download from the VMware website. To access the guide, administrators can visit the VMware vSphere 8 Security Configuration Guide page and download the latest version.

In conclusion, the VMware vSphere 8 Security Configuration Guide is an essential resource for any administrator who wants to ensure the security of their virtual infrastructure. With its comprehensive coverage of vSphere 8 security configuration and best practices, this guide is a must-have reference for anyone working with vSphere 8. Whether you’re looking to harden your vSphere environments, audit your security configuration, or simply stay up-to-date with the latest security updates, this guide is an invaluable resource that can help you achieve your goals.

Ansible Lab: Customizing the Ansible Configuration File

In our previous Ansible lab posts, we covered the basics of installing Ansible and creating inventory files for our machines. Today, we’ll dive deeper into customizing the Ansible configuration file to make our automation tasks more efficient.

By default, when you install Ansible, it provides inventory and configuration file templates for you. Let’s take a look at the contents of the ansible.config file located in /etc/ansible on the Ansible server. We won’t go through the contents of the ansible.config or hosts files as they are well-documented inline and online by Ansible. Instead, we’ll create a simple configuration file to get us started.

Renaming the Ansible Configuration File

We can rename the ansible.config file to create our own version of it. For this example, let’s call our new configuration file ansible-custom.config. Using nano, we’ll edit the newly created file and insert the following:

Inventory Entry

—————-

As you can see, we’ve added an inventory entry pointing to the inventory file we created earlier. This way, we won’t have to specify the -i each time we use the Ansible CLI.

Adding Additional Configuration Options

We’ve also specified the root user as the user to use for sudo operations, which provides better visibility and sets a timeout value for SSH connections. Here’s the edited ansible-custom.config file:

Testing the Ansible Configuration File

To test our new configuration file, we can run the following command:

“`css

ansible-playbook -i /path/to/inventory/file

“`

As you can see, we specified the inventory file location, and the command worked as expected. We then re-ran the command without specifying the inventory file, and Ansible successfully read the inventory file path from the ansible-custom.config file we modified.

Overriding the Inventory File on the Command Line

Why do we need to specify the inventory file path in the configuration file if we can override it on the command line? The answer is simple: flexibility. We may have another inventory file we want to use for testing or specific tasks, and by specifying it on the command line, we can quickly switch between different inventory files without modifying the configuration file each time.

Conclusion

———-

In this post, we’ve explored how to customize the Ansible configuration file to make our automation tasks more efficient. By creating a simple configuration file and specifying an inventory entry, we can avoid having to specify the -i each time we use the Ansible CLI. Additionally, we learned how to override the inventory file on the command line, providing us with flexibility in our automation tasks.

As always, thanks for reading, and we’ll see you in the next post!

VMware Announces Major Change in Licensing Model, Marking the End of Perpetual Licenses

In a significant move, VMware has announced that it will be discontinuing the sale of perpetual licenses for its software, marking a major shift in its licensing model. This change comes just 19 days after the official completion of Broadcom’s acquisition of VMware.

As of now, customers of VMware will no longer be able to purchase perpetual licenses, and existing customers with perpetual licenses will not be able to renew their support contracts. However, clients can continue to use their existing perpetual licenses with active support contracts, and VMware has committed to continuing support as defined in the existing contractual obligations.

This change affects all VMware products, including vSphere Standard and VMware vSphere Essentials Plus, which will still be available for small deployments and environments with limited requirements. To soften the transition, Broadcom is preparing measures to encourage businesses with perpetual licenses to switch to subscription-based offers with attractive pricing incentives.

Going forward, VMware will offer two main offers: VMware Cloud Foundation and VMware vSphere Foundation. These new licenses are the culmination of a two-year journey undertaken by VMware to simplify its portfolio and transition from a perpetual model to a subscription-based model to better serve customers with continuous innovation, faster time to profitability, and predictable investments.

According to VMware by Broadcom, this change is the natural evolution of the company’s licensing model, and it marks the beginning of a new era for VMware and its clients. The company believes that this shift will enable it to better serve its customers with a more flexible and cost-effective model that provides access to the latest technology and innovation.

In conclusion, the discontinuation of perpetual licenses by VMware represents a significant change in the company’s licensing model. This move is part of a larger effort by Broadcom to simplify VMware’s portfolio and transition to a subscription-based model. While it may be challenging for some customers to adapt to this new reality, the benefits of this shift are undeniable, and it marks the beginning of a new era for VMware and its clients.

This week in tech, Elon Musk continues to be a source of controversy and humor. The billionaire CEO of X (formerly known as Twitter) admitted in a deposition that his tweets probably hurt the value of his company, and it was revealed that he roleplays as a toddler on a burner account. Additionally, Musk is facing scrutiny for his refusal to police misinformation on the platform, and has been involved in a war of words with the government of Brazil.

In other news, tens of thousands of LG smart TVs have been found to have software vulnerabilities that could allow cybercriminals to hijack them. It’s important to update your device as soon as possible to avoid being targeted by malicious actors.

X owner Elon Musk has made significant changes to the platform since acquiring it for $44 billion in 2022, including eliminating the word “tweet” and trying to change all references to Twitter.com to X.com without asking users. He has also sold off the company’s famous blue bird memorabilia.

In a 108-page deposition, Musk discussed his strange alternate accounts on the platform, including one where he roleplays as a toddler. The deposition was part of a lawsuit that alleges Musk falsely accused a 22-year-old Jewish man of participating in a Neo-Nazi brawl.

Musk also spent the weekend embroiled in a war of words with the government of Brazil, which has reportedly opened an investigation into his refusal to police misinformation on the platform. He insists that the battle is all about “free speech,” but his history of bowing to authoritarian governments raises questions about his motives.

Other notable stories in tech this week include a video claiming to show a point where the Pacific Ocean meets the North Sea, despite being completely false. Additionally, people have been sharing their concerns about the safety of microwave ovens, and the Federal Aviation Administration is investigating an incident involving a Southwest Airlines flight that was forced to return to its point of origin after the cowling on one of its engines fell off during takeoff.

President Joe Biden is considering a request to stop legal proceedings against Wikileaks co-founder Julian Assange, who’s currently fighting extradition to the US where he faces 18 federal charges related to his publication of secret military documents.

Finally, Dbrand, a maker of skins for mobile devices and faceplates for consoles, got into hot water on social media after making fun of a customer’s last name in a racist way. The company ended up forking over $10,000 to make amends.

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VMware vCenter Server and Cloud Foundation versions prior to 7.5 contain vulnerabilities that can be exploited by attackers, according to recent advisories from VMware. These vulnerabilities have been assigned CVE numbers CVE-2021-21980 and CVE-2021-22049, and they pose a high risk of compromise to systems that are not properly secured.

The affected products include vCenter Server and Cloud Foundation versions prior to 7.5, which are widely used in enterprise environments to manage and deploy virtual machines and other cloud resources. The vulnerabilities can be exploited remotely, without the need for user interaction, and could allow an attacker to execute arbitrary code on the target system.

The advisories recommend that customers take immediate action to mitigate these vulnerabilities by upgrading to version 7.5 of vCenter Server and Cloud Foundation, which contain patches for these issues. It is important to note that the affected products are not the only ones that may be impacted by these vulnerabilities, as other VMware products may also be affected.

Customers should review the Response Matrix provided by VMware to determine which products are impacted and the appropriate course of action. The matrix lists each product and its affected components, as well as any recommended actions or workarounds that can be taken to mitigate the vulnerabilities.

In addition to upgrading to version 7.5, customers should also apply any available patches and updates to their systems to ensure that they are fully protected. This includes applying the latest security patches and updates, as well as disabling any unnecessary or unused features or services that may be vulnerable to attack.

Customers who are unable to immediately upgrade to version 7.5 should take steps to mitigate the vulnerabilities in other ways, such as by configuring firewalls and access controls to limit exposure to potential attacks, and by monitoring their systems for any signs of suspicious activity.

In conclusion, VMware vCenter Server and Cloud Foundation versions prior to 7.5 contain high-risk vulnerabilities that can be exploited by attackers. Customers should take immediate action to mitigate these vulnerabilities by upgrading to version 7.5, applying patches and updates, and taking other security measures as necessary. By taking these steps, customers can help protect their systems from potential attacks and minimize the risk of compromise.

VMware remote code execution vulnerability: What you need to know

As of December 10th, 2021, a critical remote code execution vulnerability has been reported in VMware products. The vulnerability, identified as CCVE-2021-44228, has received a high severity score of 10 out of 10 on the CVSS vulnerability scale. This means that the vulnerability can be easily exploited by attackers to gain control of affected systems.

The vulnerability is caused by a lack of proper input validation in the VMware product’s web interface, which allows an attacker to inject malicious code into the system. The attacker can then execute the code with elevated privileges, allowing them to take full control of the system.

VMware has released a response matrix for this vulnerability, which includes information on affected products and possible workarounds. However, patches are not yet available, and users are advised to upgrade their systems as soon as possible once patches become available.

The affected products include:

* vCenter Server

* ESXi

* NSX-T

* Horizon 7

The response matrix includes the following information for each product:

* Workaround: Some workarounds are available for certain products, such as disabling the web interface or restricting access to it.

* Patch: Patches are not yet available, but they will be released as soon as possible.

* Upgrade: Users are advised to upgrade their systems as soon as possible once patches become available.

It is important to note that this vulnerability can be exploited remotely, so it is essential to take immediate action to protect your system. VMware has provided a detailed advisory on the vulnerability and the response matrix, which can be found on their website.

To stay informed about the status of patches and updates for this vulnerability, it is recommended to regularly check the VMware security announcements page. Additionally, it is advised to follow best practices for securing your systems, such as keeping software up-to-date, using strong passwords, and limiting access to sensitive data.

In conclusion, the remote code execution vulnerability in VMware products is a critical issue that requires immediate attention. Users should take the necessary steps to protect their systems, such as upgrading as soon as possible once patches become available. Regularly checking the VMware security announcements page and following best practices for securing your systems can also help prevent attacks.

* * * * * *

CVE-2021-22045 Heap Overflow Vulnerability in VMware Workstation, Fusion, and ESXi Hypervisors

Hello there! As we welcome the new year, we also get notified of the first security vulnerability of 2021. And guess what? It’s a doozy! The CVE-2021-22045 heap overflow vulnerability has been identified in VMware Workstation, Fusion, and ESXi hypervisors. This is a critical vulnerability with a CVSSv3 score of 7.7 (important). Let’s dive into the details!

Impacted Product Suites:

Before we get into the juicy stuff, let’s take a look at which product suites are impacted by this vulnerability:

❓ VMware Workstation

❓ VMware Fusion

❓ VMware ESXi

What’s the Deal?

The heap overflow vulnerability is caused by an issue in the hypervisor’s heap memory management. This can lead to a situation where an attacker can execute malicious code on the affected systems.

Here’s the technical explanation:

“The heap overflow vulnerability occurs due to improper bounds checking during the processing of certain API calls, allowing an attacker to exploit the vulnerability and execute arbitrary code with elevated privileges.”

What Can You Do?

Don’t panic! VMware has already released a response matrix that includes information on how to mitigate this vulnerability. Here are the impacted product suites and their corresponding response matrices:

❓ VMware Workstation Response Matrix

❓ VMware Fusion Response Matrix

❓ VMware ESXi Response Matrix

The response matrices include information on how to update your systems with the latest security patches. So, go ahead and check out the response matrices for your specific product suites. Click here for the security advisory and response matrices.

Conclusion

That’s it for this blog post! We hope you found this information helpful and informative. Remember to always keep an eye on security vulnerabilities, especially those that affect critical systems like VMware Workstation, Fusion, and ESXi hypervisors. Stay safe out there!

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VMware Learning Platform: A Comprehensive Guide to ELS and Basic Training

VMware Learning Platform is an online education platform that offers various training programs for VMware professionals. The platform provides two types of trainings: Basic and Enterprise (ELS). In this article, we will explore the features and benefits of both types of trainings and how to enroll in them. Additionally, we will discuss the steps to access the platform and complete the courses.

Basic Training

Basic training is designed for individuals who are new to VMware technology. The training covers the fundamental concepts of VMware and provides a solid foundation for further learning. Basic training includes the following courses:

* vRealize Operations: What’s New [8.1]

* vSphere: What’s New [6.7]

* vCenter Server: What’s New [6.5]

To enroll in basic training, you can follow these steps:

1. Go to the VMware Learning Platform website () and register for an account.

2. Fill out the required information, including your name, email address, and password.

3. After registration, log in to your account and navigate to the Learning Library.

4. Click on the “Explore Product Index” button and select the product you want to learn about, such as vRealize Operations.

5. Browse through the available courses and select the one that interests you.

6. Once you have selected a course, click on the “Enroll” button to enroll in the course.

7. After enrolling, you will be directed to the course page, where you can access the course materials and complete the course.

Enterprise (ELS) Training

Enterprise (ELS) training is designed for experienced VMware professionals who want to advance their skills and knowledge. ELS training includes the following courses:

* vRealize Operations: Advanced Topics [8.1]

* vSphere: Advanced Topics [6.7]

* vCenter Server: Advanced Topics [6.5]

To enroll in ELS training, you can follow these steps:

1. Go to the VMware Learning Platform website () and register for an account.

2. Fill out the required information, including your name, email address, and password.

3. After registration, log in to your account and navigate to the Learning Library.

4. Click on the “Explore Product Index” button and select the product you want to learn about, such as vRealize Operations.

5. Browse through the available courses and select the one that interests you.

6. Once you have selected a course, click on the “Enroll” button to enroll in the course.

7. After enrolling, you will be directed to the course page, where you can access the course materials and complete the course.

Accessing the Platform and Completing Courses

To access the VMware Learning Platform and complete courses, follow these steps:

1. Log in to your account on the VMware Learning Platform website.

2. Navigate to the Learning Library and select the product you want to learn about.

3. Browse through the available courses and select the one that interests you.

4. Once you have selected a course, click on the “Enroll” button to enroll in the course.

5. After enrolling, you will be directed to the course page, where you can access the course materials and complete the course.

6. To earn a certificate of completion, you must pass all the quizzes and assessments associated with the course.

7. Once you have completed all the course requirements, you can download your certificate of completion from the course page.

Conclusion

VMware Learning Platform is an excellent resource for VMware professionals who want to enhance their skills and knowledge. The platform offers two types of trainings: Basic and Enterprise (ELS). Both types of trainings provide valuable insights into the latest VMware technologies and can help you advance your career in the IT industry. By following the steps outlined in this article, you can enroll in the training programs that interest you and complete them to earn certificates of completion. We hope this comprehensive guide has been helpful to you. If you have any further questions or concerns, please do not hesitate to contact us.