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H2VAC: Using Hydrogen Fuel to Decarbonize Heating and Cooling

Discover how hydrogen fuel is poised to revolutionize HVAC systems by reducing carbon emissions and easing strain on electric grids, driving the industry toward a decarbonized future.




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Re: shell wildcard expansion (un)safety

Posted by Eli Schwartz on Nov 10

The earliest version of the Bash Pitfalls guide that includes a warning
about the topic, per the Wayback Machine:

https://web.archive.org/web/20090426020027/https://mywiki.wooledge.org/BashPitfalls#Filenames_with_leading_dashes

Overall, wildcards are just a classic "here is a programming language
footgun, we cannot fix it because the language is backwards compatible
to the 90s and earlier" which amounts to:

people love bash because...




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Re: shell wildcard expansion (un)safety

Posted by lists on Nov 10

That says nothing about the amusing character # either at the
start of a name or after whitespace.





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Re: shell wildcard expansion (un)safety

Posted by Fay Stegerman on Nov 10

* Eli Schwartz <eschwartz () gentoo org> [2024-11-10 00:59]:
[...]

[...]

Obviously, shell scripts and wildcards are one of the easiest ways to trip up
here. But the underlying issue is that CLI interfaces mix options and
arguments: the lack of a clean separation between data and code/commands
(another example is e.g. printing unescaped control characters to stdout,
something discussed on this list before, and far too common IME, as I...




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CVE-2024-50386: Apache CloudStack: Directly downloaded templates can be used to abuse KVM-based infrastructure

Posted by Daniel Augusto Veronezi Salvador on Nov 12

Severity: important

Affected versions:

- Apache CloudStack 4.0.0 through 4.18.2.4
- Apache CloudStack 4.19.0.0 through 4.19.1.2

Description:

Account users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the
primary storage for deploying instances. Due to missing validation checks for KVM-compatible templates in CloudStack
4.0.0 through 4.18.2.4 and 4.19.0.0 through 4.19.1.2, an attacker that...




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Re: shell wildcard expansion (un)safety

Posted by Ali Polatel on Nov 12

Thank you. Around six months ago I added a restriction on filenames with
control characters to Sydbox[1] after I had read about a vulnerability
here on this list. I think it was about tar but my memory may not serve
me right. Sydbox is secure by default, so at first this feature was
enabled without any way to turn it off. After a few months of testing
with fellow Exherbo Linux developers, we have noticed some package tests
(nvim was one of them)...




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Coastal Coat Casing Package: Equipment Casing

The Coastal Coat Casing Package is now offered as a premium option for the Modine Atherion packaged ventilation system. 




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Starting Up Idle HVAC Equipment after Summer Vacation

There are things contractors can do to get school equipment back online and ensure it’s operating as efficiently as possible in time for the first school bell this fall.




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Residential Cooling Showcase 2016: Systems Designed to Keep Customers Cool

Every year, The NEWS introduces the latest cooling equipment available for the upcoming summer season in order to help contractors prepare for this busy period by doing the research that will help them to distinguish between brands. The coverage features specific information about each individual product as submitted by the manufacturers.




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Commercial Cooling Showcase 2016: Summer Heat No Match for HVAC Cooling Equipment

The manufacturers provided all of the data included in the product grid as well as the photo feature. Therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Residential Heating Showcase 2016: New Products Help Homeowners Feel the Heat

This heating showcase provides in-depth information on the features of each individual unit and also includes technical support information from the manufacturer. The manufacturers provided all of the data included in the product grid as well as in the photo feature; therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Commercial Heating Showcase 2016: New HVAC Systems Help Keep the Commercial Market Warm

Each year, The NEWS spotlights the industry’s latest commercial heating products. The manufacturers provided us with a brief description of features included with each product.




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Fujitsu Technical Service Advisors Conference Creates a Unified Front

Fujitsu’s Technical Service Advisors event was held to strengthen manufacturer-distributor relationships and empower in-field technical support staff.




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Tools Roundup for HVACR Pros: Measure, Carry, Flare, and More

This brief year-end tool review rounds up a handful of items that might make the work a little easier in 2021.




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possible false positive for 'INDICATOR-SHELLCODE x86 setgid 0' can someone confirm

Posted by John via Snort-sigs on Oct 29

When I attempt to download the following xz file, my IPS blocks it with the below populating the snort log. I suspect
this is a false positive unless there is some code in the xz file that is truly malicious. Can someone with more
knowledge about the rule please comment?

Link to file that triggers the match:
http://fl.us.mirror.archlinuxarm.org/armv7h/extra/qt5-base-5.15.15%2Bkde%2Br136-1-armv7h.pkg.tar.xz

Entry from snort log:...




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For HVAC Companies, a Phantom Stock Plan Can Revolutionize Retention Packages

Learn how HVAC companies can increase retention by giving their employees a stake in the company’s success through phantom stock plans.




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Introducing the HVAC Electrify and Decarbonize e-newsletter

ACHR NEWS launches new tools to help readers stay up-to-date on the latest trends.




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The NEWSMakers Podcast: Data Driven HVAC Decisions

Frank Bacchetta of Total Comfort Group talks about how his company uses data to improve the customer experience.




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A Case Study: Driving Energy Efficiency Through Utility Incentives

Is reducing a facility's energy consumption by over 130,000 kWh annually through HVAC optimization possible?




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Commercial Heating Showcase 2024

Commercial heating equipment manufacturers are rolling out new systems that are energy efficient, as well as service friendly for contractors.




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The NEWSMakers Podcast: Women in the HVAC Industry

Though getting enough people to work in the HVAC industry has been an issue for quite a while, women have been greatly underrepresented. According to the U.S. Bureau of Labor Statistics, only 2% of the HVAC workforce is women. Amy O’Grady from Women in HVACR talks about what needs to happen for more women to get into the HVAC industry.




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HVAC Q&A Episode 4: Overlooked Ways to Advertise Locally

Four marketing coaches share what makes an HVAC contractor stand out to potential customers.




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AI Can Be a Help and a Headache

If used correctly, AI can potentially enhance efficiency and accuracy across multiple industries, including HVACR.




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Distributor’s Gamble on VRF Technology Continues Paying Off 3 Decades Later

A visit to an ASHRAE event 30-plus years ago introduced David Heckler to VRF technology, and the distributor was won over. VRF systems now make up about half of his company’s business.




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BIM Software Improves Communication and Network for HVAC Contractors

BIM technology has proven to be highly expedient for several HVAC plans, especially in terms of cost efficiency, time optimization, and effective planning.




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Smaller Buildings Can Benefit From Building Automation Systems

Small- to medium-sized buildings make up about 94% of all commercial buildings in the U.S., according to the U.S. Energy Information Administration, yet only 13% of those buildings have a building automation system.




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Scott Cochrane Named to the CABA Board of Directors

Cochrane Supply & Engineering offers products for commercial and industrial building comfort, safety, and security as well as world-class technical support, development and training.




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Carrier’s Tommy Hulland Joins ASHB Board

Hulland is the associate director of strategic planning and market intelligence for residential and light commercial HVAC at Carrier.




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Salus North America Inc.: Radiant Control

This enables users to control their hydronic radiant panel, baseboard, or radiator to heat to the exact temperature and from wherever they may be.




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METUS Participates in the New American Home 2018

From the start, the home’s development team at Legacy Custom Built Homes had big goals for the 6,600-square-foot, three-level home in terms of both efficiency and design aesthetic.




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How HVAC Contractors Can Zone In on Zoning Systems

For more HVAC contractors to sell zoning systems, they have to understand the benefits, challenges, know how to approach customers to even be able to sell it, and then comes the install.




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Npcap Celebrates its 10th Anniversary In Space!

Posted by Gordon Fyodor Lyon on Oct 05

Dear Nmap community,

Last month we celebrated Nmap's 26th birthday and today I'm happy to share
another big milestone: Our Npcap driver for capturing and sending raw
packets on Windows turned 10 this year! From humble beginnings as a
security and modernization patch for the discontinued WinPcap project,
Npcap has become an indispensable component for both Nmap and Wireshark.
And it's used by hundreds of other software products and...




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Could Subscription-Based Heat Pumps Be the Future of Electrification?

Scandinavian green energy startup Aira plans to offer a 10-year service guarantee and a monthly fee that includes installation, maintenance.




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ACCA Panel: Brace For Change

Industry experts are telling contractors to stay informed and get involved with the new regulations that are likely to impact everyone this coming year




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Residential Cooling Showcase 2024

In this showcase, The ACHR NEWS introduces the latest cooling equipment available for the upcoming summer season in order to help contractors distinguish between brands.




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A New Day for Earth Day: Decarbonization by Heat Pumps

As people around the world prepare to celebrate Earth Day, it’s a good time to incorporate renewable energy solutions, like Thermal Energy Networks (TENs), into the ongoing conversation.




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Hybrid Heat Pumps Offer Practical Compromise

Hybrid systems offer a pathway that balances environmental concerns with practical considerations, ensuring a more sustainable and feasible transition towards cleaner energy sources.




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Pascal Plans to Build A Better Heat Pump

The startup, Pascal, plans to build a better heat pump based on solid refrigerants that will deliver higher efficiencies at lower costs, while eliminating all refrigerant emissions.”




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California Musician Pens Love Song to Heat Pumps

“(I’m Your) Heat Pump” is a soft, funky, R&B love song told from the perspective of a heat pump that depicts just what a heat pump can provide to its users.




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California Heat Pump Partnership Aims to Scale Up Electrification of HVAC

This new private-public partnership wants to quadruple heat pump installation in California over the next 6 years.




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Cashing In on Heat Pumps: A Primer on Incentives, Rebates, and Tax Credits

With “heat pump” and “incentives” almost being synonymous at this point, contractors need to understand the basics to ensure customers are receiving the benefits.




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Residential Heating Showcase 2021

Every year, The ACHR NEWS introduces the latest heating equipment that is available for the upcoming winter season.




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Residential Heating Showcase 2022

Every year, The ACHR NEWS introduces the latest heating equipment that is available for the upcoming winter season.




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Three Ways Contractors Can Make High-End Furnaces ‘Sell Themselves’

If contractors in colder climates focus on educating their customers on what new higher-efficiency furnaces bring to the table, often times the furnaces will sell themselves.




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BlocPower Announces $150M in Financing for Building Decarbonization in Low-Income Communities

BlocPower, a climate technology company focused on greening America's buildings, announced a fundraising round of $150 million, including more than $24 million of Series B corporate equity led by VoLo Earth Ventures and $130 million of debt financing led by Goldman Sachs.





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Residential Heating Showcase 2023

The residential heating showcase is designed to help HVAC contractors learn about the new heating equipment that is available for the upcoming cooler months.




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Residential Heating Showcase 2024

The residential heating showcase is designed to help HVAC contractors learn about the new heating equipment that is available for the upcoming cooler months.




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How to make a minimal HTTPS request with ncat --ssl with explicit HTTP content?

Posted by Ciro Santilli OurBigBook via dev on Sep 17

Hello, I was trying for fun to make an HTTPS request with explicit hand-written HTTP content.

Something analogous to:

printf 'GET / HTTP/1.1 Host: example.com ' | ncat example.com 80

but for HTTPS. After Googling one of the tools that I found that seemed it might do the job was ncat from the nmap
project, so I tried:

printf 'GET / HTTP/1.1 Host: example.com ' | ncat --ssl example.com 443

an that works...




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NPCAP 1.60 high CPU usage with pcap filter that does not pass anything (Win10)

Posted by Vladimir Soldatov on Sep 17

Hi guys,

I've a setup (Win10, Intel X520, NPCAP 1.60) with relatively high traffic
around 700 Mbit/s and I am trying to test the following cases:
1. Capture everything with empty pcap filter and just print stats with some
period calculating captured data size
2. Capture nothing with an intentionally created filter that does not match
the received traffic at all.
3. Capture some subset of traffic like 10%.

In all the cases, CPU usage...