Edureka Fan

Edureka Fan

1622559297

Kubernetes Security Best Practices | Kubernetes RBAC | Kubernetes Certification Training

This Edureka Kubernetes Security Best Practices video will help you understand what are the major Security Principles and practices of Kubernetes. We will also discuss a case study on the Cryptojacking Attack at Tesla. Below are the topics covered in this Kubernetes Security Best Practices:

  • 00:00:00 Introduction
  • 00:01:34 Kubernetes Security Challenges
  • 00:02:55 Security Principles
  • 00:06:26 Security Practices
  • 00:26:37 Case Study - Cryptocurrency Mining

#kubernetes #security

What is GEEK

Buddha Community

Kubernetes Security Best Practices | Kubernetes RBAC | Kubernetes Certification Training
Christa  Stehr

Christa Stehr

1602964260

50+ Useful Kubernetes Tools for 2020 - Part 2

Introduction

Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.

According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.

(State of Kubernetes and Container Security, 2020)

And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.

(State of Kubernetes and Container Security, 2020)

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bindu singh

bindu singh

1647351133

Procedure To Become An Air Hostess/Cabin Crew

Minimum educational required – 10+2 passed in any stream from a recognized board.

The age limit is 18 to 25 years. It may differ from one airline to another!

 

Physical and Medical standards –

  • Females must be 157 cm in height and males must be 170 cm in height (for males). This parameter may vary from one airline toward the next.
  • The candidate's body weight should be proportional to his or her height.
  • Candidates with blemish-free skin will have an advantage.
  • Physical fitness is required of the candidate.
  • Eyesight requirements: a minimum of 6/9 vision is required. Many airlines allow applicants to fix their vision to 20/20!
  • There should be no history of mental disease in the candidate's past.
  • The candidate should not have a significant cardiovascular condition.

You can become an air hostess if you meet certain criteria, such as a minimum educational level, an age limit, language ability, and physical characteristics.

As can be seen from the preceding information, a 10+2 pass is the minimal educational need for becoming an air hostess in India. So, if you have a 10+2 certificate from a recognized board, you are qualified to apply for an interview for air hostess positions!

You can still apply for this job if you have a higher qualification (such as a Bachelor's or Master's Degree).

So That I may recommend, joining Special Personality development courses, a learning gallery that offers aviation industry courses by AEROFLY INTERNATIONAL AVIATION ACADEMY in CHANDIGARH. They provide extra sessions included in the course and conduct the entire course in 6 months covering all topics at an affordable pricing structure. They pay particular attention to each and every aspirant and prepare them according to airline criteria. So be a part of it and give your aspirations So be a part of it and give your aspirations wings.

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Wilford  Pagac

Wilford Pagac

1596789120

Best Custom Web & Mobile App Development Company

Everything around us has become smart, like smart infrastructures, smart cities, autonomous vehicles, to name a few. The innovation of smart devices makes it possible to achieve these heights in science and technology. But, data is vulnerable, there is a risk of attack by cybercriminals. To get started, let’s know about IoT devices.

What are IoT devices?

The Internet Of Things(IoT) is a system that interrelates computer devices like sensors, software, and actuators, digital machines, etc. They are linked together with particular objects that work through the internet and transfer data over devices without humans interference.

Famous examples are Amazon Alexa, Apple SIRI, Interconnected baby monitors, video doorbells, and smart thermostats.

How could your IoT devices be vulnerable?

When technologies grow and evolve, risks are also on the high stakes. Ransomware attacks are on the continuous increase; securing data has become the top priority.

When you think your smart home won’t fudge a thing against cybercriminals, you should also know that they are vulnerable. When cybercriminals access our smart voice speakers like Amazon Alexa or Apple Siri, it becomes easy for them to steal your data.

Cybersecurity report 2020 says popular hacking forums expose 770 million email addresses and 21 million unique passwords, 620 million accounts have been compromised from 16 hacked websites.

The attacks are likely to increase every year. To help you secure your data of IoT devices, here are some best tips you can implement.

Tips to secure your IoT devices

1. Change Default Router Name

Your router has the default name of make and model. When we stick with the manufacturer name, attackers can quickly identify our make and model. So give the router name different from your addresses, without giving away personal information.

2. Know your connected network and connected devices

If your devices are connected to the internet, these connections are vulnerable to cyber attacks when your devices don’t have the proper security. Almost every web interface is equipped with multiple devices, so it’s hard to track the device. But, it’s crucial to stay aware of them.

3. Change default usernames and passwords

When we use the default usernames and passwords, it is attackable. Because the cybercriminals possibly know the default passwords come with IoT devices. So use strong passwords to access our IoT devices.

4. Manage strong, Unique passwords for your IoT devices and accounts

Use strong or unique passwords that are easily assumed, such as ‘123456’ or ‘password1234’ to protect your accounts. Give strong and complex passwords formed by combinations of alphabets, numeric, and not easily bypassed symbols.

Also, change passwords for multiple accounts and change them regularly to avoid attacks. We can also set several attempts to wrong passwords to set locking the account to safeguard from the hackers.

5. Do not use Public WI-FI Networks

Are you try to keep an eye on your IoT devices through your mobile devices in different locations. I recommend you not to use the public WI-FI network to access them. Because they are easily accessible through for everyone, you are still in a hurry to access, use VPN that gives them protection against cyber-attacks, giving them privacy and security features, for example, using Express VPN.

6. Establish firewalls to discover the vulnerabilities

There are software and firewalls like intrusion detection system/intrusion prevention system in the market. This will be useful to screen and analyze the wire traffic of a network. You can identify the security weakness by the firewall scanners within the network structure. Use these firewalls to get rid of unwanted security issues and vulnerabilities.

7. Reconfigure your device settings

Every smart device comes with the insecure default settings, and sometimes we are not able to change these default settings configurations. These conditions need to be assessed and need to reconfigure the default settings.

8. Authenticate the IoT applications

Nowadays, every smart app offers authentication to secure the accounts. There are many types of authentication methods like single-factor authentication, two-step authentication, and multi-factor authentication. Use any one of these to send a one time password (OTP) to verify the user who logs in the smart device to keep our accounts from falling into the wrong hands.

9. Update the device software up to date

Every smart device manufacturer releases updates to fix bugs in their software. These security patches help us to improve our protection of the device. Also, update the software on the smartphone, which we are used to monitoring the IoT devices to avoid vulnerabilities.

10. Track the smartphones and keep them safe

When we connect the smart home to the smartphone and control them via smartphone, you need to keep them safe. If you miss the phone almost, every personal information is at risk to the cybercriminals. But sometimes it happens by accident, makes sure that you can clear all the data remotely.

However, securing smart devices is essential in the world of data. There are still cybercriminals bypassing the securities. So make sure to do the safety measures to avoid our accounts falling out into the wrong hands. I hope these steps will help you all to secure your IoT devices.

If you have any, feel free to share them in the comments! I’d love to know them.

Are you looking for more? Subscribe to weekly newsletters that can help your stay updated IoT application developments.

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Edureka Fan

Edureka Fan

1622559297

Kubernetes Security Best Practices | Kubernetes RBAC | Kubernetes Certification Training

This Edureka Kubernetes Security Best Practices video will help you understand what are the major Security Principles and practices of Kubernetes. We will also discuss a case study on the Cryptojacking Attack at Tesla. Below are the topics covered in this Kubernetes Security Best Practices:

  • 00:00:00 Introduction
  • 00:01:34 Kubernetes Security Challenges
  • 00:02:55 Security Principles
  • 00:06:26 Security Practices
  • 00:26:37 Case Study - Cryptocurrency Mining

#kubernetes #security

The Top Kubernetes Security Best Practices

There’s no doubt that Kubernetes adoption has increased a lot since its first release. But, as Ian Coldwater said in their talk about abusing the Kubernetes defaults: Kubernetes is insecure by design and the cloud only makes it worse. Not everyone has the same security needs, and some developers and engineers might want more granular control on specific configurations. Kubernetes offers the ability to enforce security practices as you need, and the evolution of the available security options has improved a lot over the years.

This post covers a few suggestions on what can you do to make your Kubernetes workloads more secure. I won’t go deep in many of the topics—some of them are pretty straightforward, while others need more theory. But I’ll make sure you at least get the idea of why and when you need to implement these practices. And I’ll provide links for further reading in case any of these are the right fit for you.

Enough words. Let’s get into the details.

1. Disable public access

Avoid exposing any Kubernetes node to the internet. Aim to work only with private nodes if you can. If you decide to run Kubernetes in the cloud and use its managed service offering, you can disable public access to the API’s control pane. Don’t think about it, just disable it. An attacker that has access to the API can get sensitive information from the cluster. You can either use a bastion host, configure a VPN tunnel, or use a direct connection to access the nodes and other infrastructure resources. And in the cloud, look for disabling servers’ metadata from pods with network policies—more on this later.

If you need to expose a service to the internet, use a load balancer or an API gateway and enable only the ports you need. Always look to implement the least-privileged principle, and close everything by default.

2. Implement role-based access control

Stop using the “default” namespace and plan according to your workload permission needs. Make sure that role-based access control (RBAC) is enabled in the cluster. RBAC is simply an authorization method on top of the Kubernetes API. When you enable RBAC, everything is denied by default. But you’ll be able to define more granular permissions to users that will have access to the API. You’d first start by creating roles and assigning users to those roles. A role will contain only allowed permissions, like the ability to list pods, and its scope applies to a single namespace. You can also create cluster roles where the permissions apply to all namespaces.

I suggest you read the official docs for RBAC in Kubernetes to learn more about its capabilities and how to implement it in your cluster.

3. Encrypt secrets at rest

Kubernetes architecture uses etcd as the database to store Kubernetes objects. All the information about the cluster, the workloads, and the cloud’s metadata is persisted in etcd. If an attacker has control of etcd, they can do whatever they want—such as revealing secrets for database passwords or accessing sensitive information. Since Kubernetes 1.13, you can enable encryption at rest. Backups will be encrypted, and attackers won’t be able to decrypt the secrets without the master key. A recommended practice is to use a key management service (KMS) provider like HashiCorp’s Vault or AWS KMS.

4. Configure admission controllers

After a request to the Kubernetes API has been authorized, you can use an admission controller as an extra layer of validation. An admission controller may change the request object or deny the request. As Kubernetes usage grows in your company, you need to enforce specific security policies in the cluster automatically. For example, enforce that containers always run as unprivileged users or that containers pull images only from authorized image repositories and enforce the usage of images that you’ve analyzed before. You can find other policies on the official Kubernetes docs site.

5. Implement networking policies

Similar to admission controllers, you can also configure access policies at the networking layer for pods. Networking policies are like firewall rules to pods. You can limit access to pods through label selectors, similar to how you might configure a service by defining label selectors for which pods to include in the service. When you set a network policy, you configure the labels and values a pod needs to have to communicate with a service. Another notable scenario is the one I mentioned before about the attacker accessing instance metadata in the cloud. You can define a network policy to deny egress traffic to pods, limiting the access to the instance metadata API.

6. Configure secure context for containers

Even if you’ve implemented all of the previous practices I mentioned before, an attacker can still do some damage through a container. Because of Kubernetes and Docker architectures’ nature, someone could potentially have access to the underlying infrastructure. For that reason, make sure you run containers with the privileged flag turned off.

There are other tools and technologies you can use to increase security in the cluster by adding another layer of protection like AppArmor, Seccomp, or gVisor. These types of technologies help by sandboxing containers to run securely in regards to other tenants in the system. Although these are still emerging practices, it’s worth it to keep them in mind.

7. Segregate sensitive workloads

Another option is to use Kubernetes features like namespaces, taints, and tolerations to segregate sensitive workloads. You can apply more restrictive policies and practices to those workloads where you can’t afford the luxury of a data breach or service downtime. For instance, you can tag a cluster of worker nodes (node pool) and restrict who can schedule pods to those nodes with RBAC roles.

8. Scan container images

Avoid using container images from public repositories like DockerHub, or at least only use them if they’re from official vendors like Ubuntu or Microsoft. A better approach is to use the Dockerfile definition instead, build the image, and publish it in your own private image repository where you have more control. But even though you can build your own container images, make sure you include tools like Clair or MicroScanner to scan containers for potential vulnerabilities.

9. Enable audit logging

At some point in time, your systems may get infected. And when that happens (or if it happens) you better have logs to find out what the problem is and how the attacker was able to bypass all your security layers. In Kubernetes, you can create audit policies to decide at which level and what things you’d like to log each time the Kubernetes API is called. Once you have logs enabled, you can work on having a centralized place to persist these logs. Depending on the tool you use to persist logs, you can configure alerts, send notifications, or use webhooks to automate a patch. For instance, you might set an immediate action like terminating existing pods in the cluster that could have been affected.

If you’re running in the cloud, you can enable audit logging in the control plane. This is true at least for the three major cloud providers: AWS, Azure, and GCP.

10. Keep your Kubernetes version up to date

Last but not least, make sure you’re always running the latest version of Kubernetes. You can see the list of vulnerabilities that Kubernetes has had in the CVE site. For each vulnerability, the CVE site has a score that tells you how bad the vulnerability is. Always plan to upgrade your Kubernetes version to the latest available. If you’re using a managed version from cloud vendors, some of them deal with the upgrade for you. If not, Google published a post with a few recommendations on how to upgrade the cluster with no downtime. It doesn’t matter if you’re not running on Google—all the advice they give applies independently of where you’re running Kubernetes.

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What’s next?

That covers a good range of Kubernetes security best practices that everyone should consider. As you’ve noticed, I didn’t discuss many of the topics in too much detail, and by the time you’re reading this post, Kubernetes might have published another feature to increase security. For example, admission controllers is a feature that went live a few months ago. If you’d like to dive deeper into the current state of Kubernetes security options, I’d suggest you go and read the Kubernetes official documentation for more in-depth recommendations on securing a cluster. And in case you’re a podcast fan like me, there are two good podcasts from Google’s Kubernetes Podcast where they talk about Kubernetes security and how to attack and defend Kubernetes.

Thank you for reading !

#kubernetes #security #best practices