This is a hoax made with the use of mods, and not an official message or statement from Rockstar Games. *OV

— Rockstar Support (@RockstarSupport) July 2, 2018

Last August when The Linux Foundation’s Automotive Grade Linux (AGL) project released version 4.0 of its Linux-based Unified Code Base (UCB) reference distribution for automotive in-vehicle infotainment, it also launched a Virtualization Expert Group (EG-VIRT). The workgroup has now released a white paper outlining a “virtualized software defined vehicle architecture” for AGL’s UCB codebase.

The paper explains how virtualization is the key to expanding AGL from IVI into instrument clusters, HUDs, and telematics. Virtualization technology can protect these more safety-critical functions from less secure infotainment applications, as well as reduce costs by replacing electronic hardware components with virtual instances. Virtualization can also enable runtime configurability for sophisticated autonomous and semi-autonomous ADAS applications, as well as ease software updates and streamline compliance with safety critical standards.

The paper also follows several recent AGL announcements including the addition of seven new members: Abalta Technologies, Airbiquity, Bose, EPAM Systems, HERE, Integrated Computer Solutions, and its first Chinese car manufacturer — Sitech Electric Automotive. These new members bring the AGL membership to more than 120. 

AGL also revealed that Mercedes-Benz Vans is using its open source platform as a foundation for a new onboard OS for commercial vehicles. AGL will play a key role in the Daimler business unit’s “adVANce” initiative for providing “holistic transport solutions.” These include technologies for integrating connectivity, IoT, innovative hardware, on-demand mobility and rental concepts, and fleet management solutions for both goods and passengers.

The Mercedes-Benz deal follows last year’s announcement that AGL would appear in 2018 Toyota Camry cars. AGL has since expanded to other Toyota cars including the 2018 Prius PHV.

An open-ended approach to virtualization

Originally, the AGL suggested that EG-VIRT would identify a single hypervisor for an upcoming AGL virtualization platform that would help consolidate infotainment, cluster, HUD, and rear-seat entertainment applications over a single multicore SoC. A single hypervisor (such as the new ACRN) may yet emerge as the preferred technology, but the paper instead outlines an architecture that can support multiple, concurrent virtualization schemes. These include hypervisors, system partitioners, and to a lesser extent, containers.

Virtualization benefits for the software defined vehicle

Virtualization will enable what the AGL calls the “software defined vehicle” — a flexible, scalable “autonomous connected automobile whose functions can be customized at run-time.” In addition to boosting security, the proposed virtualization platform offers benefits such as cost reductions, run-time flexibility for the software-defined car, and support for mixed criticality systems:

• Software defined autonomous car — AGL will use virtualization to enable runtime configurability and software updates that can be automated and performed remotely. The system will orchestrate multiple applications, including sophisticated autonomous driving software, based on different licenses, security levels, and operating systems.

• Cost reductions — The number of electronic control units (ECUs) — and wiring complexity — can be reduced by replacing many ECUs with virtualized instances in a single multi-core powered ECU. In addition, deployment and maintenance can be automated and performed remotely. EG-VIRT cautions, however, that there’s a limit to how many virtual instances can be deployed and how many resources can be shared between VMs without risking software integration complexity.

• Security — By separating execution environments such as the CPU, memory, or interfaces, the framework will enable multilevel security, including protection of telematics components connected to the CAN bus. With isolation technology, a security flaw in one application will not affect others. In addition, security can be enhanced with remote patch updates.

• Mixed criticality — One reason why real-time operating systems (RTOSes) such as QNX have held onto the lead in automotive telematics is that it’s easier to ensure high criticality levels and comply with Automotive Safety Integrity Level (ASIL) certification under ISO 26262. Yet, Linux can ably host virtualization technologies to coordinate components with different levels of criticality and heterogeneous levels of safety, including RTOS driven components. Because many virtualization techniques have a very limited footprint, they can enable easier ASIL certification, including compliance for concurrent execution of systems with different certification levels.

IVI typically requires the most basic ASIL A certification at most. Instrument cluster and telematics usually need ASIL B, and more advanced functions such as ADAS and digital mirrors require ASIL C or D. At this stage, it would be difficult to develop open source software that is safety-certifiable at the higher levels, says EG-VIRT. Yet, AGL’s virtualization framework will enable proprietary virtualization solutions that can meet these requirements. In the long-term, the Open Source Automation Development Lab is working on potential solutions for Safety Critical Linux that might help AGL meet the requirements using only open source Linux.</ul>

Building an open source interconnect

The paper includes the first architecture diagrams for AGL’s emerging virtualization framework. The framework orchestrates different hypervisors, VMs, AGL Profiles, and automotive functions as interchangeable modules that can be plugged in at compilation time, and where possible, at runtime. The framework emphasizes open source technologies, but also supports interoperability with proprietary components.

The AGL application framework already supports application isolation based on namespaces, cgroups, and SMACK. The framework “relies on files/processes security attributes that are checked by the Linux kernel each time an action processes and that work well combined with secure boot techniques,” says EG-VIRT. However, when multiple applications with different security and safety requirements need to be executed, “the management of these security attributes becomes complex and there is a need of an additional level of isolation to properly isolate these applications from each other…This is where the AGL virtualization platform comes into the picture.”

To meet EG-VIRT’s requirements, compliant hardware virtualization solutions must enable CPU, cache, memory, and interrupts to create execution environments (EEs) such as Arm Virtualization Extensions, Intel VT-x, AMD SVM, and IOMMU. The hardware must also support a trusted computing module to isolate safety-security critical applications and assets. These include Arm TrustZone, Intel Trusted Execution Technology, and others. I/O virtualization ​support for GPU and connectivity sharing is optional.

The AGL virtualization platform does not need to invent new hypervisors and EEs, but it does need a way to interconnect them. EG-VIRT is now beginning to focus on the development of an open source communication bus architecture that comprises both critical and non-critical buses. The architecture will enable communications between different virtualization technologies such as hypervisors and different virtualized EEs such as VT-x while also enabling direct communication between different types of EEs.

Potential AGL-compliant hypervisors and partitioners

The AGL white paper describes several open source and proprietary candidates for hypervisor and system partitioners. It does not list any containers, which create abstraction starting from the layers above the Linux kernel.

Containers are not ideal for most connected car functions. They lack guaranteed hardware isolation or security enforcement, and although they can run applications, they cannot run a full OS. As a result, AGL will not consider containers for safety and real time workloads, but only within non-safety critical systems, such as for IVI application isolation.

Hypervisors, however, can meet all these requirements and are also optimized for particular multi-core SoCs. “Virtualization provides the best performance in terms of security, isolation and overhead when supported directly by the hardware platform,” says the white paper.

For hypervisors, the open source options listed by EG-VIRT include Xen, Kernel-based Virtual Machine (KVM), the L4Re Micro-Hypervisor, and ACRN. The latter was announced as a new Linux Foundation embedded reference hypervisor project in March. The Intel-backed, BSD-licensed ACRN hypervisor provides workload prioritization and supports real-time and safety-criticality functions. The lightweight ACRN supports other embedded applications in addition to automotive.

Commercial hypervisors that will likely receive support in the AGL virtualization stack include the COQOS Hypervisor SDK, SYSGO PikeOS, and the Xen-based Crucible and Nautilus. The latter was first presented by the Xen Project as a potential solution for AGL virtualization back in 2014. There’s also the Green Hills Software Integrity Multivisor. Green Hills announced AGL support for Integrity earlier this month.

Unlike hypervisors, system partitioners do not tap specific virtualization functions within multi-core SoCs, and instead run as bare-metal solutions. Only two open source options were listed: Jailhouse and the Arm TrustZone based Arm Trusted Firmware (ATF). The only commercial solution included is the TrustZone based VOSYSmonitor.

In conclusion, EG-VIRT notes that this initial list of potential virtualization solutions is “non-exhaustive,” and that “the role of EG-VIRT has been defined as virtualization technology integrator, identifying as key next contribution the development of a communication bus reference implementation…” In addition: “Future EG-VIRT activities will focus on this communication, on extending the AGL support for virtualization (both as a guest and as a host), as well as on IO devices virtualization (e.g., GPU).”

Download the free white paper to learn more and join us at Open Source Summit + Embedded Linux Conference Europe in Edinburgh, UK on October 22-24, 2018, for 100+ sessions on Linux, Cloud, Containers, AI, Community, and more.

Genomic data provides the foundation for the delivery of personalized medicine, although cost-effective and secure management of this data is challenging. BC Platforms, a Microsoft partner and world leader in genomic data management and analysis solutions, created GeneVision for Precision Medicine, Built on Microsoft Cloud technology. GeneVision is an end-to-end genomic data management and analysis solution empowering physicians with clear, actionable insights, facilitating evidence-based treatment decisions.

We interviewed Simon Kos, Chief Medical Officer and Senior Director of Worldwide Health at Microsoft, to learn more about how digital transformation is enabling the delivery of personalized medicine at scale.

David Turcotte: What led to your transition from a clinical provider to a leader within the healthcare technology industry?
Simon Kos: It wasn’t intentional. In critical care medicine, having the right information on hand to make patient decisions, and being able to team effectively with other clinicians is essential. I felt that the technology we were using didn’t help, and I saw that as a risk to good quality care. This insight led to an interest, and the hobby eventually became a career as I got more exposure to all the incredible solutions out there that really do improve healthcare.

Given your unique perspective within the healthcare technology industry, how do you see digital transformation progressing in healthcare?

Digitization efforts have been underway for more than thirty years. As an industry, healthcare is moving slower than others. It’s heavily regulated, complex, and there is a large legacy of niche systems. However, the shift is occurring, and it needs to happen. We have a fundamental sustainability issue, with healthcare expenditure climbing around the world, and our model of healthcare needs to change emphasis from treating sick people in hospitals to preventing chronic disease in the community setting. Each day I see new clinical models that can only be achieved by leveraging technology, enabling us to treat patients more effectively at lower cost.

How are you and other healthcare leaders managing the shift from fee-for-service to a value-based care model?

My role in the shift to value-based care is building capability within the Microsoft Partner Network—which is over 12,000 companies in health worldwide—and bringing visibility to those that support value-based care. For healthcare leaders more directly involved in either the provision or reimbursement side, the challenge is more commercial. Delivering the same kind of care won’t be as profitable, but adapting business processes comes with its own set of risks. I think the stories of organizations that have successfully transitioned to value-based care, the processes they use, and the technology they leverage, will be important for those who desire more clarity before progressing with their own journeys

What role does precision medicine play in delivering value-based care?

Right now, precision medicine seems to be narrowly confined to genetic profiling in oncology to determine which chemotherapy agents to use. That’s important since these drugs are expensive, and with cancer it’s imperative to start on a therapy that will work as soon as possible. However, I think the promise of precision medicine is so much broader than this. In understanding an individual’s risk profile through multi-omic analysis (i.e. genomics), we can finally get ahead of disease before it manifests, empower people with more targeted education, screen more diligently, and when patients do get unwell, intervene more effectively. Shifting some of the care burden to the patient, preventing disease, intervening early, and getting therapy right the first time, will drive the return on investment that makes value-based care economically viable.

As genomics continues to become more democratized, how will we continue to see it affect precision medicine?

It’s already scaling out beyond oncology. I expect to see genomics have increasing impact in areas like autoimmune disease, rare disease, and chronic disease. In doing so, I think precision medicine will cease to be something that primary care and specialists refer a patient on to a clinical geneticist or oncologist, instead they will integrate it into their model of care. I also see a role for the patients themselves to get more directly involved. As we continue to understand more about the human genome, the value of having your genome sequenced will increase. I see a day when knowing your genome is as common as knowing your blood type.

What role can technology play in closing the gap between genomics researchers and providers?

I think technology can federate genomics research. Research collaboration would tremendously increase the data researchers have to work with, which will accelerate breakthroughs. The more we understand about the genome, the more relevant it becomes to all providers. I also think machine learning has a role to play. Project Hanover aims to take the grunt work out of aggregating research literature. Finally, I think genomics needs to make its way into the electronic medical records that providers use, ideally with the automated clinical decision support that help them use it effectively.

What challenges are healthcare leaders facing when implementing a long-term, scalable genomics strategy?

On the technical side, compute and storage of genomic information are key considerations. The cloud is quickly becoming the only viable way to solve for this. Using the cloud requires a well-considered security and privacy approach. On the research side, there’s still so much we have to learn about the genome. As we learn more it will open new avenues of care. Finally, on the business side, we have resourcing and reimbursement. The talent pool of genomics today is insufficient for a world where precision medicine is mainstream. These specialized resources are costly, and even with the cost of sequencing coming down, staffing a genomics business is expensive. And then there’s the reality of reimbursement – right now only certain conditions qualify for NGS. So, I think any genomics business needs to start with what will be reimbursed but be ready to expand as the landscape evolves.

How do genomic solutions like BC Platforms’ GeneVision for Precision Medicine have the potential to transform a provider’s approach to patient care?

Providers are busy, and more demands are being placed on them to see more patients, see them faster, but also to personalize their care and deliver excellent outcomes. BC Platforms’ GeneVision allows insights to be surfaced from the system level raw data and delivered to the clinician to assist them in meeting these demands. The clinical reports that can be leveraged through GeneVision enable providers to make critical decisions about therapies and treatment within the context of their existing workflows.

In addition to report generation, GeneVision optimizes usage of stored genomic data so that when it is produced, it can be repeatedly re-utilized by merging it with clinical data as many times as a patient enters the health care system. GeneVision makes this possible through BC Platforms’ unique architecture, the dynamic storage capabilities of Microsoft Azure cloud technology, and Microsoft Genomics services. Together, these capabilities make genomic solutions like GeneVision a key factor in delivering patient-centered care at scale.

What will it take for genomics to become a part of routine patient care?

The initial barrier was cost. I think we are past that, with NGS dipping below $1000 and continuing to fall. Research into the genome is the current challenge. Genomics will eventually touch all aspects of medicine, but given the previous cost constraints we are the most advanced in oncology today. A key benefit of GeneVision is that it supports both whole genome sequencing and genotyping, which is currently the more cost-effective method to generate and store genomic data.  Although the cost of whole genome sequencing is coming down, this flexibility is essential to enabling rapid proliferation of genomics applications in healthcare. The future challenge will be educating the clinical provider workforce and introducing new models of care that leverage genomics. I think the reimbursement restrictions will melt away organically, as it becomes clearly more effective to take a precision approach to patient care.

What future applications of genomics in healthcare are you most excited about?

I’m really excited about the evolution of CRISPR and gene editing. Finding that you have a genetic variant that increases your risk of certain diseases can be helpful of course—it allows you to be aware, to screen, and take preventative steps. The ability to go a step further though and remediate that variant I think is incredibly powerful. At the same time, gene editing opens all sorts of other ethical issues, and I don’t yet think we have a mature approach to considering how we tackle that challenge.

BC Platforms GeneVision for Precision Medicine, Built on Microsoft Cloud technology, is available now on AppSource. Learn how GeneVision equips physicians with the tools they need to improve and accelerate patient outcomes by trying the demo today.

For all the appeal of services like Netflix and HBO Now, some people just can’t bear to part with live TV when they cut the cord. Here are the major options DirecTV Now, Playstation Vue, Sling TV, Hulu with Live TV, YouTube TV, and WatchTV compared, and how to decide which to get — if any.

Sling TV

One of the first internet-only live TV services and still often considered the go-to, Dish Network’s Sling is divided primarily into “Orange” and “Blue” bundles, each costing $25 per month. The first includes 30 channels, while the second includes 42. The biggest difference is that while Blue includes Fox, NBC, and the pair’s sports networks, Orange has ESPN 1, 2, and 3. $40 merges both packages with plenty of overlap.

Instead of selling additional tiers, Sling relies on small add-ons. Most, such as Epix, “Sports Extra,” and “Best of Spanish TV,” are $5 per month. There’s a strong emphasis on international content — indeed for some people Sling may be the only way to go, since it has add-ons for countries you may not find anywhere else, like China and India.

“Premium” channels like HBO, Showtime, and Starz are also available, but usually at a higher cost. HBO for example is $15, as much as a separate HBO Now subscription, although here you get the live feed on top of on-demand content. Basketball freaks can sign up for NBA “Team Passes” that cover specific teams for $18, or the entire league for $29.

Cloud DVR support is another $5 add-on. This includes up to 50 hours of material, so you can’t go berserk picking shows and movies.

Supported Apple devices include iPhones, iPads, and the Apple TV.

PlayStation Vue

In case there was any confusion, PlayStation Vue has long been available on more than just Sony’s PlayStation consoles. As with Sling, it’s on iPhones, iPads, and the Apple TV.

The platform is divided into four tiers: Access, Core, Elite, and Ultra. Access, priced at $45 per month, includes about 47 channels such as AMC, Cartoon Network, SyFy, and ESPN 1 and 2. Notably this includes sports networks from NBC and Fox.

Sony has a pretty hefty amount of sports content included in its default plans, and even some non-sports channels you might have a hard time finding. To sum up though, Core costs $50 for over 60 channels, Elite is $60 for 87, and Ultra is $80 for over 90. Notably, Ultra incorporates HBO and Showtime.

There are far fewer add-on options for Vue than Sling, but some include channels that are missing even from the Ultra package, such as Cinemax or some of the more niche sports channels.

Some perks of the service include up to 10 profiles, the ability to stream on as many as five devices simultaneously, and hold as much DVR content as you want for up to 28 days and 500 programs.

YouTube TV

This one has just a single $40 plan, but with over 60 channels, some highlights being several ESPN options, and the four major broadcast networks: ABC, CBS, NBC, and Fox, along with a bunch of their affiliated channels. Naturally Google also tosses in YouTube Red Originals.

Showtime, Starz, Shudder, Fox Soccer Plus, and Sundance Now are the only add-ons available, so people wanting the likes of HBO will have to turn elsewhere. It also lacks important channels like Comedy Central, so keep that in mind.

As features go there isn’t much to distinguish YouTube — a subscription includes six accounts, and the ability to stream to three devices simultaneously. The biggest selling point may be its cloud DVR functions, which are practically unlimited since you can keep any and all recordings for as long as nine months.

The service was initially heavily mobile-focused, but you can now watch it on the Apple TV as well as iPhones and iPads.

Hulu with Live TV

Hulu is a relative latecomer to live TV, but it may be hard to beat for the simple reason that $39.99 gets you not just 50-plus channels, but access to the company’s regular on-demand library, including shows and a spattering of movies. Depending on your tastes, a Hulu account could eliminate the need for separate services like Netflix.

Most of the usual suspects are present in the service’s channel lineup, but there are some conspicuous gaps, such as Comedy Central once again. And on-demand content is included in the form of a “Limited Commercials” plan, so expect to be annoyed by advertising that would you wouldn’t run into with Netflix.

All Apple devices are supported, but by default you can only stream on two devices simultaneously. Likewise, cloud DVR functions are normally restricted to 50 hours of material.

Hulu not only charges you for premium channels — $14.99 for HBO, $9.99 for Cinemax, and $8.99 for Showtime — but extra for a 200-hour DVR and/or more screens (unlimited at home, three on the road).

DirecTV Now

If you absolutely insist on having a cable-like experience, AT&T’s DirecTV Now foregoes anything like a “skinny” bundle. There are five tiers, the smallest offering over 60 channels and the biggest over 120. Every recent Apple device is compatible.

For a while the service was considered something of a bargain, so long as you were willing to put up with early disruptions and a clunky interface. AT&T has tried to clean up the experience, and as of this writing it’s even still offering a free Apple TV 4K if you’re willing to prepay for three months. Prices are going up on Aug. 1 however, such that packages will cost $40, $55, $65, and $75 — roughly aligned with the rest of the market.

The service is also relatively stingy in features, offering just a 20-hour beta DVR and charging customers $5 to stream to a third screen on top of the first two. You can however add HBO or Cinemax for just $5, while Starz and Showtime are $8 apiece.

WatchTV

Another AT&T offering, the newest service on this list is only $15 per month, but currently offers just 31 channels. None of these carry sports, so if you want to watch the NFL, you’re out of luck.

The main reason to subscribe to WatchTV at this stage is if you have one of AT&T’s “Unlimited &More” data plans, in which case the service is free and even lets you add one of several “premium” services at no extra cost. You can add something like HBO or Showtime, but a few non-video services are available too, such as Pandora Premium and Amazon Music Unlimited.

Which should you choose?

Before anything else, make sure to check that a service or package has channels you’ll actually use. Having 120 channels is meaningless if you never see most of them. Accordingly many people will probably be happy with Sling Orange or Blue, and as we said, Hulu may be appealing to people who want more on-demand content.

It’s also worth evaluating whether you like the interface a service has. All of the above options are usable, but some will suit your style of viewing better than others. We found DirecTV Now to be more awkward than Sling or YouTube for example, yet your experience may vary.

We strongly recommend taking advantage of the trials each service offers before making a commitment. There’s no skin lost as long as you’re quick to cancel anything you don’t want to keep.

You may even find yourself questioning the value of live TV. Sports fans don’t have much choice, but people who only care about news, shows, and movies can possibly combine a few on-demand services and still save money — say, Netflix and HBO Now.

By Joe Robinson 03 Jul 2018

Right now if you go to the Armory game engine Patreon page you are great with:

This engine was recently open sourced because it hit the Patreon goal of $1,600 a month.  Development seemed to be proceeding nicely and everything was going swimmingly well, until this happened.  Not only is this message displayed, it seems Patreons are being refunded, potentially every single contribution going back to day one.  The following appeared on the Armory forums:

There are several other “me too” type comments in this thread.  There are no further details from Armory, Lubos the lead developer, nor Patreon.  I will update here if such an update occurs.  Hopefully the Armory engine is ok, I’m pretty excited by it.  In fact, I’ve done a full tutorial series!

EDIT – UPDATE, Lubos, the project creator just made the following tweet:

[embedded content]

GameDev News Armory

As usual there’s been a flurry of activity in the cloud and DevOps security space recently. In case you missed it, a particularly painful flaw was found in Red Hat Enterprise Linux’s DHCP (Dynamic Host Configuration Protocol) service not long ago.

The bug specifically affects RHEL 6 and 7 (and derivative OS, Fedora 28, apparently). The CVE folks allocated the following ID to it in case you want to look it up: CVE-2018-1111. What’s important to note about this discovery is that DHCP (the service which asks a DHCP server for a (usually) temporary IP address and then binds it to one of the host’s network interfaces) is a sometimes forgotten cornerstone of our current tech stacks. Amazon’s EC2 for example shouts out to a DHCP server whenever an instance is spun up. As well as asking for an IP address, your servers will  usually pick up DNS servers from DHCP requests, too.

A descendant of BOOTP, a similar service from a time gone by, the pervasive DHCP bug is commonly used on your home networks, your mobile networks and beyond. According to Red Hat the bug affects the “dhclient”, in tandem with the “NetworkManager” daemon, and means that “A malicious DHCP server, or an attacker on the local network able to spoof DHCP responses, could use this flaw to execute arbitrary commands with root privileges on systems using NetworkManager and configured to obtain network configuration using the DHCP protocol.”

At first glance, this vulnerability might make the RHEL naysayers complain that there’s yet another security issue that only affects Red Hat and not other Linux flavors. And, that must therefore mean that the other distributions are better at securing their packages. However, they couldn’t be more wrong.

The commercial model that Red Hat Inc offer is based around supporting enterprises with their products, on a paid-for basis, along with some consultancy on top for good measure. They’ve been very successful and now their products are in use globally on many mission critical opensource server estates. Why is this relevant? Well, aside from the fact that the (free) CentOS Linux flavour benefits from the downstream improvements made by Red Hat, the community as a whole does in addition.

I normally find that it’s hard to know who to believe when a lofty claim is made in the relatively congested Internet giants’ space,  However, a report published in November 2017 — called “The State of Open Source Security” — shows some evidence that Red Hat’s Linux might be ruling the roost for security currently. Obviously, I can’t make any guarantees for the report’s impartiality.

Commissioned by Snyk, the report states: “Open source library vulnerabilities increased by 53.8% in 2016, while Red Hat Linux vulnerabilities have decreased.” The report is well-constructed and easy to digest and, as a plumb line to what’s going on the with security on the Internet in general, it’s a welcome read. It states that there’s been a “65% decrease in Red Hat vulnerabilities since 2012” and in addition to that: “In 2016, 69% of Red Hat Linux vulnerabilities were fixed within a day of their public disclosure, and 90% were fixed within 14 days of their public disclosure”.

The report continues: “Red Hat Linux seems to be finding some level of stability” and “…it does make us optimistic that better security is achievable with a little bit of work”.

The truth, of course, is that every device or service has a vulnerability of some description or another, and, as the report states, “there are a lot of steps involved in the lifecycle of an open source security vulnerability. From discovery through final adoption of fixes, each part of the process is important in its own way, and ultimately plays a role in the overall state of security.” Code auditing is key as well as timely response to vulnerabilities. Check out the report to learn more.

Chris Binnie’s latest book, Linux Server Security: Hack and Defend, shows how hackers launch sophisticated attacks to compromise servers, steal data, and crack complex passwords. In the book, he also shows you how to make your servers invisible, perform penetration testing, and mitigate unwelcome attacks. You can find out more about DevOps, DevSecOps, Containers, and Linux security on his website: https://www.devsecops.cc.