S.A.C. Mac OS
S.A.C. Mac OS
When an HTTP client (generally a web browser) requests a URL that points to a directory structure instead of an actual web page within the directory, the web server will generally serve a default page, which is often referred to as a main or 'index' page.
A common filename for such a page is index.html, but most modern HTTP servers offer a configurable list of filenames that the server can use as an index. If a server is configured to support server-side scripting, the list will usually include entries allowing dynamic content to be used as the index page (e.g. index.php, index.shtml, index.jsp, default.asp) even though it may be more appropriate to still specify the HTML output (index.html.php or index.html.aspx), as this should not be taken for granted. An example is the popular open source web server Apache, where the list of filenames is controlled by the DirectoryIndex[1] directive in the main server configuration file or in the configuration file for that directory. It is possible to make do without file extensions at all, and be neutral to content delivery methods, and set the server to automatically pick the best file through content negotiation.
Validator S.A.C. (Stand Alone Complex) is a stand-alone, easy to install, version of the W3C 's HTML / XHTML Markup Validator for Mac OS X. Validator S.A.C. Is a normal Mac OS X application. No installation is required, just put Validator S.A.C. Where you need it (hard drive, flash drive, CD-R, etc). For each file or folder listed, the command will, by default, show the date and time the item was last changed, if the item is a folder (labeled with DIR) or file, the size of the file if applicable, and finally the name of the file or folder including the file extension.
If the server is unable to find a file with any of the names listed in its configuration, it may either return an error (generally 404 Not Found) or generate its own index page listing the files in the directory. It may also return a 403 Index Listing Forbidden. Usually this option is also configurable.
History[edit]
A scheme where web server serves a default file on per-subdirectory basis has been supported as early as NCSA HTTPd 0.3beta (22 April 1993),[2] which defaults to serve index.html file in the directory.[2][3] This scheme has been then adopted by CERN HTTPd since at least 2.17beta (5 April 1994), which its default supports Welcome.html and welcome.html in addition to the NCSA-originated index.html.[4]
Later web servers typically support this default file scheme in one form or another; this is usually configurable, with index.html being one of the default file names.[5][6][7]
Implementation[edit]
In some cases, the home page of a website can be a menu of language options for large sites that use geo targeting. It is also possible to avoid this step, for example by using content negotiation.
In cases where no index.html exists within a given directory, the web server may be configured to provide an automatically-generated listing of the files within the directory instead. With the Apache web server, for example, this behavior is provided by the mod_autoindex module[8] and controlled by the Options +Indexes directive[9] in the web server configuration files.
References[edit]
- ^'mod_dir - Apache HTTP Server'. httpd.apache.org. Retrieved 2014-05-30.
- ^ ab'WWW-Talk Apr-Jun 1993: NCSA httpd version 0.3'. 1997.webhistory.org.
- ^'NCSA HTTPd DirectoryIndex'. January 31, 2009. Archived from the original on January 31, 2009.
- ^'Change History of W3C httpd'. June 5, 1997. Archived from the original on June 5, 1997.
- ^'mod_dir - Apache HTTP Server Version 2.4 § DirectoryIndex Directive'. httpd.apache.org. Archived from the original on 2020-11-12. Retrieved 2021-01-13.
- ^'NGINX Docs Serving Static Content'. docs.nginx.com. Archived from the original on 2020-11-11. Retrieved 2021-01-13.
- ^'Default Document <defaultDocument> Microsoft Docs'. docs.microsoft.com. Archived from the original on 2020-12-08. Retrieved 2021-01-13.
- ^'mod_autoindex - Apache HTTP Server Version 2.4'. httpd.apache.org. Retrieved 2021-01-13.
- ^'core - Apache HTTP Server Version 2.4 § Options Directive'. httpd.apache.org. Retrieved 2021-01-13.
Why the 609 Certification is Important
The Clean Air Act of 1990 requires auto technicians to be certified in handling refrigerants. Properly disposing of refrigerants helps protect people and the environment from harm. Without correctly recovering and recycling refrigerant, dangerous health risks are posed to humans and the global climate. An EPA 609 Certification allows industry professionals to understand and stay compliant with EPA guidelines in handling and disposing of refrigerants.
What to expect in 609 Certification & Testing Process
Before taking the EPA 609 Certification test, MACS strongly recommends industry professionals completely review the Section 609 Study Guide. Further prepare by viewing MACS’ Section 609 webinar, a recorded training class available for only $25.
When the Section 609 Study Guide and/or webinar has been reviewed, choose from an at-home or online 609 Certification test in English or Spanish. The test is open book with 25 multiple-choice questions. There is also a FREE 10-question practice exam available online. (only)
609 Certification Tests
609 Certification Test
$20
Passing the Section 609 Certification test allows you to purchase refrigerant in quantities over two pounds, and also learn to recover and recycle refrigerant in compliance with U.S. EPA regulations. A minimum score of 84% is required to earn your certification.
Below is an instructional video to guide you through the purchase and test process.
- Online test: After purchasing the online 609 certification test you will be provided a link to complete the test online.
- Mail in test: You’ll receive the 609 Certification test, a study guide and a pre-addressed envelope to return the test to the grading facility. You have 90 days from the receipt of the test to complete and return to MACS for grading.
- Retake test: If your first attempt at passing the online test was unsuccessful, you need to purchase the online test again. You have one opportunity to pass the 609 test, that is why it is important to take the FREE practice test.
- Mail-in replacement test: Did you lose your mail-in test? No problem, select replacement test below to order one today.
- Bulk Testing for Companies: Purchase multiple online/by-mail tests for your employees with one payment. Create an account at the MACS website for each individual technician prior to contacting us at
215-631-7020 x 313.
Please write down your MACS account login and password for future reference.
Choose a Language
609 Certification Training & Practice Tests
609 Certification Training Webinar
$25
Discounted member price: $0
This webinar is designed to help technicians gain the knowledge they need before taking the Section 609 Certification test. The webinar is an aid to the Section 609 study guide, but doesn’t take the place of it.
MACS dues paying members are reminded this webinar can be viewed free in the members only section of the website when members log in with their user name and password.
- The webinar is approximately 60 minutes.
- The webinar is available for viewing three weeks after date of purchase.
MACS Section 609 Certification Test Study Manual
Free
MACS Section 609 test study manuals are available to download free as a pdf document from this page and are available in both English and Spanish. If you order a home study test a hard copy study manual will be mailed to you with your test. Please write down your MACS login and password.
Choose a Language
609 Certification Practice Test
Free
To help you prepare for the 25-question 609 online Certification test, MACS offers a 10-question online practice exam. You can review the study guide to prepare for the practice test as well as the real test.
Note: Practice 609 tests are offered online only.
Choose a Language
609 Certification Card Replacement
609 Certification Card Replacement
$10
Section 609 Certification credentials are good for life. If you obtained your credentials from MACS or IMACA but have lost them, you may re-order your certification card replacement here. If you were certified by ASE, ESCO or another vendor please contact them directly.
How to obtain a reprint:
- After clicking buy now, complete the form.
- After completing the form you will be prompted to send payment.
- The $10 fee is not refundable.
Mobile A/C Training Materials
MACS Mobile A/C Update Webinar
$50
Discounted member price: $35
Every year the Mobile Air Climate Systems Association creates a special mobile A/C update clinic to help working technicians keep up with the rapidly changing mobile A/C service and repair industry.
The material is sourced from previously un-presented material from the MACS 2020 Mobile A/C Update Clinic book. The clinic book is a separate purchase.
The Mobile A/C Update presentation is 1 hour long. The viewer can view the video for up to three weeks.
Topics for Mobile A/C Update:
- Manifold Gauge Pressures & Line Temperatures
- A/C Line Temp Review
- Expected Results
- Temp Drops from Ambient to Duct
- Evaporators, TXVs, Condensers & more!
- eVDCs (Electronically Controlled Variable Displacement Compressors)
- Test Equipment
- IHX (Internal Heat Exchanger)
- Contact Thermometer
- Update on EPA, Refrigerant Regulations, R-1234yf & Section 609 Certification
Customer Booklet “Getting to Know”
$0.55
Discounted member price: $0.50
This 30-page booklet educates your customers on the way A/C and engine cooling systems operate. It helps customers understand the complexity of the systems and the need for professional repair.
- These booklets are sold at $.55 each.
- MACS can also ship to a consumer in single quantities at no charge.
Modern Automotive HVAC: Electrical & Electronic Systems
$77.95
Discounted member price: $47.95
This manual is a 150-page text designed to sharpen technician skills. It reviews basic principles and presentation of industry-accepted best practices for all aspects of HVAC diagnosis and repair.
Shipping Costs & Details
- Price includes shipping in the domestic U.S.
- Canada shipping is an additional U.S. $7 per book.
- International shipping is an additional U.S. $22 per book.
- If you have multiple book orders, MACS will contact you with correct shipping rates.
Modern Automotive HVAC Systems
$67.95
Discounted member price: $37.95
This manual is a 150-page text designed to sharpen technician skills. It reviews basic principles and presentation of industry-accepted best practices for all aspects of HVAC diagnosis and repair.
Shipping Costs & Details
- Price includes shipping in the domestic U.S.
- Canada shipping is an additional U.S. $7 per book.
- International shipping is an additional U.S. $22 per book.
- If you have multiple book orders, MACS will contact you with correct shipping rates.
Choose a Language
E-Tech Training Reference App
$175
Discounted member price: 125
The E-Tech training reference is an online service and repair database to give you the information you need about heating and cooling systems.
Clinic Update Manual
$48
Discounted member price: $28
Purchase MACS clinic update manuals, the 2020, 2019 and 2018 versions are available.
The training topics for MACS Clinic Update Manual 2020 are:
- Sometimes We Think Too Hard
- Manifold Gauge Pressures vs. Line Temperatures: The Inexact Science Evolves
- Fluorescent Leak Detection
- A/C Airflow Switches to Defrost
- A/C Performance in Hot Climates/Engine Temps
- Software Fix for HVAC Noise
- In-car and OAT (Ambient) Temperature Sensors
- Electronics Comes to the “Thermostatic” Expansion Valve
- A Few A/C Shorts
- Update on Refrigerant Regulations, R-1234yf and Section 609 Certification
Mobile A/C Instructor & 609 Proctor Kits
Section 609 Proctor Kit – Printed
$119
Teach the MACS Section 609 Certification Program
The printed kit, which consists of a download of the presentation, a printed Training Script, a trainer’s certificate, tests and training manuals.
View MACS National Proctor Guidelines
Section 609 Proctor Kit – Digital
$59
Teach the MACS Section 609 Certification Program
The soft kit, which consists of a download of the presentation, a trainer’s certificate, tests and training manuals.
Modern Automotive HVAC: Electrical & Electronic Systems – Instructor Kit
$197.95
Purchase a PowerPoint® with printed guide to aid you in your 609 Certification training classes.
- Price includes shipping within the domestic U.S.
- Other shipping requirements will be called for confirmation
Modern Automotive HVAC Systems – Instructor Kit
$187.95
Purchase a 211-slide PowerPoint® with printed guide to aid you in your 609 Certification training classes.
- Price includes shipping within the domestic U.S.
- Other shipping requirements will be called for confirmation.
EPA 609 Certification Apparel & Accessories
We Protect the Environment Decal
$4
Discounted member price: $3.50
Display this decal on every vehicle to let customers know your technicians comply with U.S. Clean Air Act requirements and handle refrigerant responsibly.
S.a.c. Mac Os X
609 Certified Uniform Patch
$6.50
Discounted member price: $5.00
Proudly display your 609 Certification status on your uniform with this patch.
S.a.c. Mac Os Catalina
609 Certified T-Shirt
Sac Mac Strain
$20
Discounted member price: $18
Let the world know you’re Section 609 certified! Get a black T-shirt with the MACS logo and Section 609 Certified printing.
S.a.c. Mac Os Download
- Price includes shipping
- Available sizes: S, M, L, XL, 2X, 3X and 4X Choose your size below
S.A.C. Mac OS