As a system administrator, it is crucial to keep your Linux systems up to date with the latest security patches and updates. This is especially true for servers that are exposed to the internet, as they are more vulnerable to attacks. In this blog post, we will discuss some best practices for keeping your Linux systems secure and up to date.

Update Regularly

The first step in keeping your Linux system secure is to update it regularly. This includes updating the operating system, as well as any installed software and packages. It is recommended to update your system at least once a week, or whenever new updates become available.

Layer Your Security

As mentioned earlier, it is important to layer your security to mitigate potential risks. This means using multiple security measures such as firewalls, reverse proxies, and access controls to protect your system. For example, you can use the unattended-upgrades package on Ubuntu to automate security updates and patches.

Create a Secure User

When setting up your Linux system, it is important to create a secure user account. This should be done with least privilege access, which means giving the user only the necessary permissions to perform their tasks. This will help limit the damage that can be caused by a compromised account.

Set Up SSH Keys

SSH (Secure Shell) is a popular method for remotely accessing Linux systems. To enhance security, it is recommended to use SSH keys instead of passwords. This will eliminate the risk of password guessing attacks. To set up SSH keys, you can use the following command:

ssh-keygen -t rsa -b 4096

This will generate a public and private key pair. The public key should be added to the authorized_keys file in the home directory of the user account.

Disable Password Logins

To further enhance security, it is recommended to disable password logins for all user accounts. This can be done by editing the /etc/ssh/sshd_config file and setting PermitRootLogin to “no” and PasswordAuthentication to “no”.

Configure Services and Ports

It is important to configure services and ports to only allow necessary access. This can be done using the Linux built-in firewall (UFW) or other firewalls such as Fail2Ban. UFW allows you to easily allow or deny traffic to specific ports, while Fail2Ban provides a more comprehensive IP blocking feature.

Use Least Privilege Access

As mentioned earlier, it is important to use least privilege access for all user accounts. This means giving users only the necessary permissions to perform their tasks. This will help limit the damage that can be caused by a compromised account.

Monitor Your System

It is important to regularly monitor your Linux system for any suspicious activity or updates. This can be done using various tools such as SSH, Fail2Ban, and UFW. Additionally, you should regularly check the system logs to ensure that there are no security issues or anomalies.

In conclusion, keeping your Linux system up to date and secure is crucial for protecting against potential attacks and vulnerabilities. By following these best practices, you can ensure that your system is well-protected and running smoothly. Remember to always use least privilege access, disable password logins, and monitor your system regularly for any security issues or updates.

The VMWare vExpert Program: A Community of Excellence

As a vExpert, I can confidently say that the best part of this program is the community. The members are truly valuable and always willing to help out. Whether it’s a question or a new technology to explore, there’s always someone who has done it before and can offer guidance. The sense of camaraderie and collaboration is unparalleled, and it’s a testament to the strength of the vExpert community that we can all come together to share knowledge and expertise.

One of the standout benefits of being a vExpert is the leadership. Corey and the team are always introducing us to new technologies and bringing us into vExpert sessions led by leading vendors. These sessions are an invaluable opportunity to learn from the best and get hands-on experience with cutting-edge technology. And let’s not forget the access to licenses that we can use for POC (proof of concept) and testing. This is a huge benefit for those of us who like to tinker and explore new ideas.

Last year, one of the benefits was receiving a Maxtang Mini PC as a gift (BYO RAM & HDD). While I was happy with my current Gigabyte/NVidia NUC, I decided to give the Maxtang a try. Unfortunately, the Realtek NIC was not supported, so I had to order some additional hardware to get it up and running. But that’s a story for another time.

One of the challenges I faced when installing VMWare on the Maxtang was the lack of support for USB network cards in the install ISO from VMWare. Luckily, the community has developed a ‘fling’ that supports USB network cards, so we have to create a custom ISO of ESXi and inject the drivers into the image. If you’re interested in learning more about this process, Florian Grehl from Virten.net has a great article on how to install the fling and make a custom ISO.

Once I got the ISO written to a USB, the installation was relatively smooth. I did have to disable TPM in the BIOS, as I was getting an error. But after that, I was able to install ESXi 8 and run a few VMs without issues. My plan is to install some Kubernetes and possibly NSX-T, so we’ll see how far I get.

In conclusion, the vExpert program is an incredible resource for anyone interested in virtualization technology. The community is top-notch, and the leadership is always pushing us to learn more and explore new ideas. So if you haven’t already, I highly recommend joining the vExpert program and becoming a part of this amazing community.

Thank you to the vExpert team and all those who support this program!

As a web developer, I have often found myself in situations where my clients are looking for customizable and editable features on their websites. One such feature that is commonly requested is the ability for users to display their social media profiles in a visually appealing format. Recently, I had a group of people who were registered on my website and wanted to showcase their Twitch accounts along with other social media profiles like Pinterest and TikTok. While updating the website’s theme did not add any new social icons, I found a simple solution by using custom PHP code as suggested in the Ultimate Member documentation.

In this blog post, I will share my experience of adding custom social fields to a WordPress website using Ultimate Member and how you can do it too.

The Problem and the Solution

The problem was that even after updating the theme, the users were not able to see their desired social media profiles on their user profiles. The solution was to use custom PHP code to add more social fields as suggested in the Ultimate Member documentation.

How to Add Custom Social Fields

To add custom social fields, you can use the following code snippet and add it to the file functions.php in the active theme directory. You can also create a child theme and update that one instead of editing the parent theme. This script will add Pinterest, TikTok, and Twitch, but you can modify it to add whatever social media platforms you want.

The code snippet is as follows:

“`php

function ultimate_member_custom_social_fields() {

$fields = array(

‘pinterest’ => ‘Pinterest’,

‘tiktok’ => ‘TikTok’,

‘twitch’ => ‘Twitch’,

);

return apply_filters(‘um_custom_social_fields’, $fields);

}

add_filter(‘um_social_fields’, ‘ultimate_member_custom_social_fields’);

“`php

In this code, we have defined an array of fields that will be displayed on the user profile page. These fields are Pinterest, TikTok, and Twitch. We have also added a filter to apply the custom social fields to the user profiles using the `um_custom_social_fields` hook.

Benefits of Using Custom PHP Code

Using custom PHP code to add custom social fields has several benefits. Firstly, it allows you to have complete control over the design and functionality of your website. You can modify the code to fit your specific needs and requirements. Secondly, it ensures that your website’s functionality is not limited by the theme or plugin that you are using. Finally, using custom PHP code makes your website more flexible and scalable as you can easily add new features without having to update the entire theme or plugin.

Conclusion

In this blog post, we have discussed how to add custom social fields to a WordPress website using Ultimate Member. We have also explored the benefits of using custom PHP code to achieve this feature. By following the steps outlined in this post, you can easily add custom social media profiles to your website and make it more visually appealing for your users. So go ahead and give it a try!

The blog post below is based on the information provided:

How to Download Online Videos with Ease

With so many online videos available these days, it’s no wonder that people are looking for ways to download them easily. Whether you want to watch your favorite videos offline or save them for later viewing, downloading online videos can be a convenient option. In this blog post, we’ll show you how to download online videos with ease using two popular media players: VLC Media Player and Online Video Downloader.

Method 1: Using VLC Media Player

VLC Media Player is one of the most widely used media players in the world, and it offers a range of features that make it an ideal choice for downloading online videos. Here’s how to download online videos using VLC Media Player:

Step 1: Open VLC Media Player on your computer and go to Media > Open Network Stream.

Step 2: In the “Open Network Stream” window, paste the URL of the video you want to download in the “Network URL” field. Make sure the button on the bottom shows “Play” and click the “Play” button.

Step 3: Once the video starts playing, go to Tools > Codec Information. In the “Location” field, copy all the text in there and paste it in a browser’s address bar.

Step 4: In the bottom right, click the three vertical dots and select “Download.” This should save the video to your default browser’s download directory.

Method 2: Using Online Video Downloader

Online Video Downloader is a free online tool that allows you to download videos from various websites with just a few clicks. Here’s how to download online videos using Online Video Downloader:

Step 1: Go to the Online Video Downloader website and paste the URL of the video you want to download in the “Enter URL” field.

Step 2: Choose the format you want to download the video in (e.g., MP4, FLV, etc.) and click the “Download” button.

Step 3: Once the video is downloaded, you can choose to save it to your computer or play it directly from the website.

Tips and Tricks for Downloading Online Videos

Here are some tips and tricks to keep in mind when downloading online videos:

* Make sure you have permission to download the video. Some websites may not allow downloading, so be sure to check the website’s terms of use before attempting to download.

* Choose the right format for your needs. If you plan to watch the video on a mobile device, choose a format that is compatible with your device.

* Be cautious when downloading videos from unfamiliar websites. Some websites may contain malware or viruses, so be sure to only download videos from reputable sources.

Conclusion

Downloading online videos can be a convenient way to watch your favorite content offline or save it for later viewing. With the methods outlined in this blog post, you can easily download online videos using VLC Media Player and Online Video Downloader. Just remember to be cautious when downloading videos from unfamiliar websites and always check the website’s terms of use before attempting to download. Happy downloading!

As a beginner in using containers, I found myself facing a common challenge: not knowing how to define the volume location for my application data. Many of the templates I used would host the data within the container itself, which limited the benefits of using containers. To overcome this issue, I decided to revisit old containers and move the data out of the container to a backup folder on my host machine.

The first step was to create a backup folder on my host where I could move the data. I use Portainer, so my volume path would be: `/mnt/data`. Next, I logged interactively into the container using shell or bash, and validated the location of the data. In this case, I looked for a “data” folder or consulted the documentation to see where the data was stored. Once I found the folder, I copied the directory to the host machine outside the container.

To ensure that my data was properly backed up, I edited the docker-compose file and changed the configuration to define the new location of the volume where I wanted the data to reside. I started my container and observed the default directory structure. Then, I copied my backup data from the “backed up” directory (backup_dir) to the new location created by Docker. Finally, I restarted my container and verified that all my data was restored and working properly.

This experience taught me an important lesson about using containers effectively. By separating the application data from the container itself, I could ensure that my data was safely backed up and easily accessible. This approach also allowed me to upgrade my application without worrying about losing critical data.

In conclusion, moving your application data out of the container and into a backup folder on your host machine is an essential best practice for using containers effectively. By following this approach, you can ensure that your data is safely backed up and easily accessible, allowing you to focus on developing and deploying your applications without worrying about data loss or management.

As a busy family, keeping track of everyone’s schedules and events can be a challenge. That’s why I was thrilled to discover the “Magic Mirror” feature on our family calendar. This nifty tool allows us to easily see all upcoming events and appointments for each member of the family, making it simpler to stay organized and on top of our busy lives.

At first, I thought the best way to keep everyone’s calendars in sync would be to simply forward any relevant appointments to the shared calendar. However, as the new semester and work year approached, I realized that this method could become overwhelming and time-consuming. That’s when I decided to give everyone full “edit” permissions on the shared calendar, so they could easily add their own events and appointments.

To my surprise, not all of the family members’ iPhones were displaying the shared calendar after I invited them. In fact, three out of five iPhones were not showing the calendar, which left me feeling frustrated and confused. After some troubleshooting, I discovered that the issue was due to the Google Sync settings. It turns out that Google (for some reason) defaults to turning off sync for new calendars, particularly shared ones.

This was a simple fix, but it required me to look up the URL a couple of times, so I decided to store it here for future reference. The solution is to go to the calendar settings on each iPhone, then toggle on “iCloud” and “Google”. This will allow the calendar to sync properly and display all events and appointments.

I am so glad that I discovered this issue and was able to find a simple solution. It’s amazing how something as seemingly small as a Google Sync setting can cause such big problems! But now, our family calendar is up and running smoothly, and everyone can easily see all upcoming events and appointments. No more missed appointments or confusion about who is doing what and when.

I hope this information helps other families who may be experiencing similar issues. Remember, organization and communication are key to a happy and harmonious household!

This is a configuration file for the Proxmox VE (PVE) proxy server. The file contains settings for the SSL/TLS encryption, ciphers, DH parameters, and other security-related options. Here’s a breakdown of the configurations:

1. SSL/TLS encryption:

* The “default” section specifies that the SSL/TLS encryption should be enabled for all virtual machines (VMs).

* The “ciphers” section lists the supported cipher suites, including some commonly used ones like AES-256-CBC and ChaCha20.

* The “dh Parameters” section specifies the Diffie-Hellman (DH) parameters to use for key exchange during SSL/TLS handshakes.

2. Cipher suites:

* The “ciphers” section lists the supported cipher suites, including some commonly used ones like AES-256-CBC and ChaCha20.

3. DH Parameters:

* The “dh Parameters” section specifies the Diffie-Hellman (DH) parameters to use for key exchange during SSL/TLS handshakes.

4. Proxy protocols:

* The “http” and “https” sections specify that the proxy should listen on ports 80 and 443, respectively, for HTTP and HTTPS traffic.

5. Authentication:

* The “www-data” section specifies that the proxy should run as the www-data user, which has very limited privileges.

6. Access control:

* The “allow” and “deny” sections specify that certain URLs or HTTP methods should be allowed or denied, respectively, based on the contents of the “apache2” configuration file.

7. Jobs:

* The “vzdump” section specifies that the proxy should start vzdump jobs according to the configurations in the /etc/pve/jobs.cfg file.

8. Freeway:

* The “freeway” section specifies that the proxy should allow access to the Freeway web interface.

9. Email:

* The “email” section specifies that the proxy should send email notifications for certain events, such as when a job is completed or when there is an error.

10. Comments:

* The “comments” section allows you to add notes or comments about the configuration settings.

This is a guide on how to migrate a VMware virtual machine (VM) to Proxmox VE without downtime. It covers two methods:

1. Using the “Import” feature in Proxmox VE to import the VM directly from the VMware ESXi host, without the need for an intermediate export step. This method is recommended if you have a large number of VMs to migrate, or if you want to minimize downtime.

2. Exporting the VM from VMware ESXi as a VMDK file, and then importing it into Proxmox VE using the “Import” feature. This method is recommended if you need more control over the migration process, or if you want to migrate a large number of VMs with different storage configurations.

Both methods involve creating a new Proxmox VE cluster and importing the VMs into it. The difference lies in how the VMs are imported: directly from the ESXi host or as VMDK files.

Method 1: Importing VMs directly from ESXi hosts

1. Create a new Proxmox VE cluster with the “Cluster Creation” wizard.

2. Connect to the ESXi host using the “Connect to Host” feature in Proxmox VE.

3. Select the VMs you want to migrate and click the “Import” button to import them directly into Proxmox VE.

4. Follow the wizard to complete the import process.

Method 2: Exporting VMs as VMDK files and importing them into Proxmox VE

1. Export the VMs from ESXi as VMDK files using the “VMware ESXi Exporter” tool.

2. Create a new Proxmox VE cluster with the “Cluster Creation” wizard.

3. Import the VMDK files into Proxmox VE using the “Import” feature.

4. Follow the wizard to complete the import process.

In both methods, it is recommended to use the “Keep existing disks” option to avoid downtime and ensure that the VMs continue to function correctly after the migration. Additionally, it is recommended to use the “Use a different storage location” option to move the VMs to a different storage location in Proxmox VE, such as an SMB share or a cloud storage provider.

It is important to note that Proxmox VE supports both 32-bit and 64-bit operating systems, and that the migration process may take some time depending on the number of VMs being migrated and the speed of your network. It is also recommended to consult the Proxmox VE documentation and online resources for more detailed information on how to perform the migration.

Configuring Horizon Smart Policies with DEM and Horizon Client Properties

In this blog post, we will discuss how to configure Horizon Smart Policies with DEM (Desktop Environment Manager) and Horizon Client Properties to allow endpoints joined to a specific domain to use the clipboard. We will also explore other options available in the Horizon Client Property registry key and show you how to configure them in your environment.

Before we begin, it’s essential to understand that the steps outlined in this blog post are for educational purposes only and should not be attempted on a production environment without proper testing and validation. It’s also important to note that the screenshots and options may vary based on your Horizon version and configuration.

Step 1: Open the Registry on a Virtual Desktop

To configure Horizon Smart Policies with DEM and Horizon Client Properties, we need to open the registry on a virtual desktop. To do this, log in to a virtual desktop through the Horizon Client, and then follow these steps:

1. Press the Windows key + R to open the Run dialog box.

2. Type regedit and press Enter.

3. Navigate to the following registry key: ComputerHKEY_LOCAL_MACHINESOFTWAREVMware, Inc.VMware VDMSessionData1

This registry key contains all the options available for use with Client Property in DEM Conditions. In our case, we will use ViewClient_Machine_Domain.

Step 2: Create a Condition Set in DEM

Open DEM and create a new condition set. In the condition set, select the Property drop-down menu and choose Is equal to. Then type your domain name (Lab.local) in the Value field. This will create a condition set that allows endpoints joined to the Lab.local domain to use the clipboard.

Step 3: Create a Horizon Smart Policy

Next, we need to create a new Horizon Smart Policy and bind the condition set we created to this policy. To do this, follow these steps:

1. Open DEM and go to the Policies tab.

2. Click the Create Policy button and select Horizon Smart Policy from the drop-down menu.

3. Enter a name for your policy (e.g., Allow Clipboard for Lab.local Endpoints) and click Next.

4. Select the condition set we created earlier and click Next again.

5. Enable the Clipboard option, and then click Finish to save your policy.

Now that you have created your Horizon Smart Policy, all endpoints joined to the Lab.local domain will be allowed to use the clipboard when they log in through the Horizon Client.

Other Options Available in the Horizon Client Property Registry Key

The Horizon Client Property registry key (ComputerHKEY_LOCAL_MACHINESOFTWAREVMware, Inc.VMware VDMSessionData1) contains several other options that you can use with Client Property in DEM Conditions. Here are some of the most commonly used options:

1. ViewClient_Machine_OS: This property specifies the operating system of the endpoint device. You can use this property to allow or block specific OS versions from accessing the Horizon environment.

2. ViewClient_Machine_Architecture: This property specifies the architecture of the endpoint device (e.g., x86 or x64). You can use this property to restrict access to specific architectures.

3. ViewClient_Machine_Language: This property specifies the language of the endpoint device. You can use this property to allow or block access based on the user’s language preferences.

4. ViewClient_Machine_UUID: This property specifies the unique identifier of the endpoint device (also known as the universally unique identifier or UUID). You can use this property to identify specific devices and apply policies accordingly.

5. ViewClient_Machine_Manufacturer: This property specifies the manufacturer of the endpoint device. You can use this property to allow or block access based on the user’s device manufacturer.

6. ViewClient_Machine_Model: This property specifies the model of the endpoint device. You can use this property to allow or block access based on the user’s device model.

7. ViewClient_Machine_BIOS: This property specifies the BIOS version of the endpoint device. You can use this property to allow or block access based on the user’s BIOS version.

8. ViewClient_Machine_Firmware: This property specifies the firmware version of the endpoint device. You can use this property to allow or block access based on the user’s firmware version.

9. ViewClient_Machine_Hardware: This property specifies the hardware version of the endpoint device. You can use this property to allow or block access based on the user’s hardware version.

10. ViewClient_Machine_Software: This property specifies the software version of the endpoint device. You can use this property to allow or block access based on the user’s software version.

Conclusion

In this blog post, we have shown you how to configure Horizon Smart Policies with DEM and Horizon Client Properties to allow endpoints joined to a specific domain to use the clipboard. We have also explored other options available in the Horizon Client Property registry key and showed you how to configure them in your environment. Remember to test your policies thoroughly before deploying them to your production environment.

If you found this blog post helpful, please share it with your colleagues and friends who work with Horizon. We value your feedback and would love to hear your comments and suggestions for future blog posts.

Managing Multiple Users on a Single Windows Device with VMware Workspace ONE UEM

In today’s blog post, we will discuss how to manage multiple users on a single Windows device using VMware Workspace ONE Unified Endpoint Management (UEM). We will cover how to enable features, register devices, and manage different user accounts on a shared device.

Enable Features and Register Devices

To manage multiple users on a single Windows device with UEM, you need to have the following features enabled in your UEM SaaS tenant:

1. MultiUserPhase1EnrollmentSupportFeatureFlag

2. DeviceStateChannelInterfaceEnabledFeatureFlag

You can enable these features by creating a support ticket with VMware and requesting that they be activated in your UEM SaaS tenant. Once enabled, you must set the “Default Action For Inactive Users” to “Restrict Additional Device Enrollment” in UEM. Additionally, ensure that “Publish Workspace ONE Intelligent Hub” is enabled.

Registering devices as Corporate-Shared is required for managing multiple users on a single device. To register a device, you need the Serial Number of the machine. You can find the Serial Number using the following command in the Command Prompt:

wmic bios get serialnumber

Once you have the Serial Number, log in to the UEM console and go to the “Devices” tab. Click on “Lifecycle” and then select “Enrollment Status.” Click on “ADD – Register Device” and select “Ownership” as Corporate-Shared. Enter the Serial Number, and click on “SAVE.”

Managing Different User Accounts

To manage different user accounts on a shared device, you need to join the device to Azure Active Directory (AAD). You can do this by following these steps:

1. Log in to Windows using a local admin account.

2. Open the Microsoft account window and click on “Join this device to Azure Active Directory.”

3. Type in the first AAD user account and click on “NEXT.”

4. The first account will always get the local admin permission, and all other accounts will get the user account permission.

5. Click on “Join.”

6. Sign out from the windows local admin account and click on “Other user.”

7. Log in with your AAD first user account, and wait until the device is set up.

At this point, you will notice that Workspace ONE Intelligent Hub is installed automatically, which is required to install IH for all users. Never install Intelligent Hub manually for Shared devices.

Start the Hub and log in as the first user. In UEM, check the current user name. Restart the Windows machine and log in with the second AAD account. Start the Intelligent Hub and log in with the second AAD account. Notice the same machine with different user accounts. Also, check the UEM console to see the different user name on the same Windows machine.

Current Limitations of Shared Devices

While managing multiple users on a single Windows device with UEM is possible, there are some current limitations with shared devices. VMware is working to resolve these limitations with upcoming releases. Some of the limitations include:

1. Only Azure AD users can be managed as Corporate-Shared devices.

2. Only one user can use the device at a time. If multiple users try to log in simultaneously, only the first user will be able to access the device.

3. The device will always enroll using the first user’s credentials, even if other users attempt to enroll the device.

4. Users will not be able to use their own credentials to enroll the device.

5. Shared devices do not support Fully OOBE with Windows Autopilot. You must use the Azure AD join method to connect the device to Azure AD.

Conclusion

Managing multiple users on a single Windows device with VMware Workspace ONE UEM is possible by enabling specific features, registering devices as Corporate-Shared, and joining the device to Azure Active Directory. While there are some current limitations with shared devices, VMware is working to resolve these limitations with upcoming releases. With this information, you can effectively manage multiple users on a single Windows device using UEM.