uncleflo

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Some cool dude. Higher order of decision making. Absolute.

Registered since September 28th, 2017

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Lens Tests: A Simple Method

http://www.zen20934.zen.co.uk/photography/LensTests/simplemethod.htm

Saved by uncleflo on January 6th, 2019.

This is a simplified subjective method of testing lenses optical sharpness. This should not be confused with tests for focus accuracy and discrimination in a 3D environment, that is a totally different issue although often confused by the inexperienced. A focus accuracy test is suggested here Focus Test. The advantage over this method, compared to just taking a shot of a garden etc, is elimination of variables such as subject and camera movement, insufficient depth of field, flatness of field and variations in focus location. It uses a nice consistent high contrast subject to make comparisons easy; checking sharpness on general photographic views is not very easy. As the method is subjective, it is worth testing against a known good lens for comparison.

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HandBrake: Open Source Video Transcoder

https://handbrake.fr/

Saved by uncleflo on January 6th, 2019.

HandBrake is a tool for converting video from nearly any format to a selection of modern, widely supported codecs. Built-in Device Presets: Get started with HandBrake in seconds by choosing a profile optimised for your device, or choose a universal profile for standard or high quality conversions. Simple, easy, fast. For those that want more choice, tweak many basic and advanced options to improve your encodes. Supported Input Sources: Handbrake can process most common multimedia files and any DVD or BluRay sources that do not contain any kind of copy protection. License: Most of HandBrake's source code is covered by the GNU General Public License, version 2. A copy of which is included with every release in the COPYING file. Portions are covered under BSD 3 Clause.

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ISO 12233 Test Chart

https://stephen-westin.com/misc/res-chart.html

Saved by uncleflo on January 6th, 2019.

In 2000, the International Standards Organization adopted ISO Standard 12233: Photography -- Electronic still-picture cameras - Resolution measurements for the measurement of camera resolution. This standard is protected by copyright, but the design of the associated test chart seems not to be protected; its description has been available on the Web in an Excel spreadsheet. I have semi-manually converted this to an Adobe Illustrator file which is displayed here. In 2014 and again in 2017, the ISO revised the standard and the chart below was replaced by several new ones. Those new charts are not available here. In principle, you should be able to print this chart and perform resolution tests on your camera. The reality isn't that simple; there are lots of subtleties having to do with focus distance, quality and contrast of your printer, evenness of illumination, surface reflections, etc.

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DMARC - Wikipedia

https://en.wikipedia.org/wiki/DMARC

Saved by uncleflo on December 23rd, 2018.

DMARC (Domain-based Message Authentication, Reporting and Conformance) is an email-validation system designed to detect and prevent email spoofing, the use of forged sender addresses often used in phishing and email spam. It is built on top of two existing mechanisms, Sender Policy Framework (SPF) and DomainKeys Identified Mail (DKIM). It allows the administrative owner of a domain to publish a policy in their DNS records to specify which mechanism (DKIM, SPF or both) is employed when sending email from that domain; how to check the From: field presented to end users; how the receiver should deal with failures - and a reporting mechanism for actions performed under those policies. A DMARC policy allows a sender's domain to indicate that their emails are protected by SPF and/or DKIM, and tells a receiver what to do if neither of those authentication methods passes – such to reject the message or quarantine it. The policy can also specify how an email receiver can report back to the sender's domain about messages that pass and/or fail.[2]

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Zoom H6 Review: The Ultimate Podcasting Recorder?

https://www.thepodcasthost.com/equipment/recorders/zoom-h6-review/

Saved by uncleflo on December 20th, 2018.

Zoom are the masters of the digital recorder, and the Zoom H6 is currently their marquee model. We’ve been using the H4 and H5 recorders for a few years here at The Podcast Host, and both are superb bits of kit. But we treated ourselves to an early Christmas present in the shape of the H6, and I’d been looking forward to getting a good look at it. I’ve heard enough glowing reviews of the H6 from well respected podcasters and audio engineers to know that there’s no doubt over its quality. So, in this review, we’ll go over what makes it such a good recorder. But we’ll also look at the reasons why it might be overkill for some podcasters, depending on their own individual requirements.

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Boat Sales UK - Running Costs

http://www.boatsales-uk.com/running_costs.htm

Saved by uncleflo on November 29th, 2018.

What does owning a canal boat cost? Every owner is different, they cruise for longer or shorter periods, moor in different areas of the country under many different conditions, some in purpose built marinas others alongside a farmers field with no facilities. The actual cost will therefore vary with the circumstances; however, the following will give a guide to the new boater. The example given is for a 55ft boat, originally built to provide a reasonably high standard of comfort including a diesel generator. It has a reasonably high usage of about 100 days per year and is maintained to a reasonably high standard without being excessive.

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MAVO Cine Camera

http://www.kinefinity.com/mavo/?lang=en

Saved by uncleflo on November 28th, 2018.

MAVO and MAVO LF are based on the same image process platform, using advanced color processing architecture and whole new CMOS image sensors to achieve super low-noise, high dynamic range. Whether it is the S35 format version of MAVO or the large-format version of MAVO LF, the 6K cameras can bring stunning details and organic images. MAVO LF with large-format sensor provides cleaner images, wider viewing angles, shallower depth of field, and more immersive presence for cinematographers. Both MAVO and MAVO LF can shoot 6K wide 66fps, 4K wide 100fps slo-mo. Both slow-mo and normal frame rate can get the same superior images, more than 14 stops of latitude, pleasing skin tones and shadow details are reserved perfectly. With 6K 3:2 aspect ratio, in addition to the conventional 16:9 and 17:9 standard aspect ratio, the CMOS sensor can also provide a variety of image formats, such as 4:3, 6:5 S35 anamorphic shooting, even the open gate 6016×4016, up to 24 million pixels’ images!

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Applications for unmanned aircraft operational authorisations

https://www.caa.co.uk/Commercial-industry/Aircraft/Unmanned-aircraft/Small-drones/Applications-for-unmanned-aircraft-operational-authorisations/

Saved by uncleflo on November 27th, 2018.

The process to follow when applying to the CAA for an operational authorisation (a permission or an exemption) depends on the relative complexity of the authorisation that you are seeking: Applications for relatively ‘simple’ operational authorisations, which are commonly referred to as a ‘Standard Permission’, are addressed via an online application process: A ‘Standard Permission’ enables a person to conduct commercial operations with a small unmanned aircraft (drone) and also permits operations within a congested area. Applicants will be required to provide all documents and payment online (credit /debit card only ) before submitting their application. Applications for more complex operational authorisations, commonly referred to as ‘Non-Standard Permissions’, or those that require a specific Exemption from the Air Navigation Order are addressed via a more traditional ‘paper based’ application form, the SRG 1320.

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Data URIs

https://css-tricks.com/data-uris/

Saved by uncleflo on March 28th, 2018.

Did you know that you don't have to link to an external image file when using an <img> element in HTML, or declaring a background-image in CSS? You can embed the image data directly into the document with data URIs. Basically, a super long string of gibberish characters. It's not gibberish to the browser though of course. This data is interpreted as the type of file you are saying it is.

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FIN - Our core service for exchanging MT format financial messages

https://www.swift.com/our-solutions/global-financial-messaging/fin

Saved by uncleflo on March 27th, 2018.

FIN connects you to financial institutions, corporates and market infrastructures. FIN enables financial institutions to exchange individual structured (MT and ISO 15022 message formats) financial messages securely and reliably. FIN is used by over 10,800 financial institutions and their corporate customers worldwide to exchange over 22.3+ million messages per day across a wide range of business areas within the banking and securities industries. FIN value-added processing includes: Message validation to ensure messages are formatted according to SWIFT message standards. Delivery monitoring and prioritisation. Message storage and retrieval. It is based on a distributed processing architecture with full, built-in redundancy to ensure maximum availability.

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SWIFT message types

https://en.wikipedia.org/wiki/SWIFT_message_types

Saved by uncleflo on March 23rd, 2018.

The SWIFT network supports the following message standards: SWIFT Message types are the format or schema used to send messages to financial institutions on the SWIFT (Society for Worldwide Interbank Financial Telecommunication) network. The original message types were developed by SWIFT and retrospectively made into an ISO standard, ISO 15022. This was later supplemented by a XML based version under ISO 20022.

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RFC 4515 - Lightweight Directory Access Protocol (LDAP): String

http://www.faqs.org/rfcs/rfc4515.html

Saved by uncleflo on February 7th, 2018.

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Lightweight Directory Access Protocol (LDAP) search filters are transmitted in the LDAP protocol using a binary representation that is appropriate for use on the network. This document defines a human-readable string representation of LDAP search filters that is appropriate for use in LDAP URLs (RFC 4516) and in other applications.

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Comma-separated values

https://en.wikipedia.org/wiki/Comma-separated_values

Saved by uncleflo on December 28th, 2017.

In computing, a comma-separated values (CSV) file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format. The CSV file format is not standardized. The basic idea of separating fields with a comma is clear, but that idea gets complicated when the field data may also contain commas or even embedded line-breaks. CSV implementations may not handle such field data, or they may use quotation marks to surround the field. Quotation does not solve everything: some fields may need embedded quotation marks, so a CSV implementation may include escape characters or escape sequences. In addition, the term "CSV" also denotes some closely related delimiter-separated formats that use different field delimiters. These include tab-separated values and space-separated values. A delimiter that is not present in the field data (such as tab) keeps the format parsing simple. These alternate delimiter-separated files are often even given a .csv extension despite the use of a non-comma field separator. This loose terminology can cause problems in data exchange. Many applications that accept CSV files have options to select the delimiter character and the quotation character.

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HAProxy

http://www.haproxy.org/

Saved by uncleflo on December 27th, 2017.

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Over the years it has become the de-facto standard opensource load balancer, is now shipped with most mainstream Linux distributions, and is often deployed by default in cloud platforms. Since it does not advertise itself, we only know it's used when the admins report it :-) Its mode of operation makes its integration into existing architectures very easy and riskless, while still offering the possibility not to expose fragile web servers to the net. Each version brought its set of features on top of the previous one. Upwards compatibility is a very important aspect of HAProxy, and even version 1.5 is able to run with configurations made for version 1.0 13 years before. Version 1.6 dropped a few long-deprecated keywords and suggests alternatives. The most differenciating features of each version are listed below :

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Official PCI (Payment Card Industry) Security Standards Council Site - Verify PCI Compliance, Download Data Security and Credit Card Security Standards

https://www.pcisecuritystandards.org/document_library

Saved by uncleflo on December 27th, 2017.

The Document Library includes a framework of specifications, tools, measurements and support resources to help organizations ensure the safe handling of cardholder information at every step. Guidance for PCI DSS Scoping and Segmentation: Framework for a robust payment card data security process; PCI DSS v3.2: Framework for a robust payment card data security process; SAQ Documents: Self-validation tool for merchants and service providers

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Apache CXF

http://cxf.apache.org/

Saved by uncleflo on December 27th, 2017.

Apache CXF™ is an open source services framework. CXF helps you build and develop services using frontend programming APIs, like JAX-WS and JAX-RS. These services can speak a variety of protocols such as SOAP, XML/HTTP, RESTful HTTP, or CORBA and work over a variety of transports such as HTTP, JMS or JBI. CXF includes a broad feature set, but it is primarily focused on the following areas: Web Services Standards Support: CXF supports a variety of web service standards including SOAP, the WS-I Basic Profile, WSDL, WS-Addressing, WS-Policy, WS-ReliableMessaging, WS-Security, WS-SecurityPolicy, WS-SecureConverstation, and WS-Trust (partial). Frontends: CXF supports a variety of "frontend" programming models. CXF implements the JAX-WS APIs. CXF JAX-WS support includes some extensions to the standard that make it significantly easier to use, compared to the reference implementation: It will automatically generate code for request and response bean classes, and does not require a WSDL for simple cases.It also includes a "simple frontend" which allows creation of clients and endpoints without annotations. CXF supports both contract first development with WSDL and code first development starting from Java.

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OSGi

https://en.wikipedia.org/wiki/OSGi

Saved by uncleflo on December 27th, 2017.

The OSGi Alliance, formerly known as the Open Services Gateway initiative, is an open standards organization founded in March 1999 that originally specified and continues to maintain the OSGi standard. The OSGi specification describes a modular system and a service platform for the Java programming language that implements a complete and dynamic component model, something that does not exist in standalone Java/VM environments. Applications or components, coming in the form of bundles for deployment, can be remotely installed, started, stopped, updated, and uninstalled without requiring a reboot; management of Java packages/classes is specified in great detail. Application life cycle management is implemented via APIs that allow for remote downloading of management policies. The service registry allows bundles to detect the addition of new services, or the removal of services, and adapt accordingly.

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what is the meaning and use case of each URL encoding Reserved Characters

https://webmasters.stackexchange.com/questions/100765/what-is-the-meaning-and-use-case-of-each-url-encoding-reserved-characters

Saved by uncleflo on December 27th, 2017.

Quote from Percent-encoding. When a character from the reserved set (a "reserved character") has special meaning (a "reserved purpose") in a certain context, and a URI scheme says that it is necessary to use that character for some other purpose, then the character must be percent-encoded. Percent-encoding a reserved character involves converting the character to its corresponding byte value in ASCII and then representing that value as a pair of hexadecimal digits: What does each of this characters mean in context of an URI? with a search engine I didn't find a list and their meanings/use case.

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The OAuth 2.0 Authorization Framework

https://tools.ietf.org/html/rfc6749

Saved by uncleflo on July 10th, 2017.

The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service, either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service, or by allowing the third-party application to obtain access on its own behalf. This specification replaces and obsoletes the OAuth 1.0 protocol described in RFC 5849.

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The OAuth 1.0 Protocol

https://tools.ietf.org/html/rfc5849

Saved by uncleflo on May 5th, 2017.

OAuth provides a method for clients to access server resources on behalf of a resource owner (such as a different client or an enduser). It also provides a process for end-users to authorize third-party access to their server resources without sharing their credentials (typically, a username and password pair), using useragent redirections.

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oauth 1.2.3 - oauth consumer extension

https://pecl.php.net/package/oauth/1.2.3/windows

Saved by uncleflo on May 5th, 2017.

OAuth is an authorization protocol built on top of HTTP which allows applications to securely access data without having to store usernames and passwords.

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Assigned Internet Protocol Numbers

http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xml

Saved by uncleflo on February 8th, 2017.

In the Internet Protocol version 4 (IPv4) [RFC791] there is a field called "Protocol" to identify the next level protocol. This is an 8 bit field. In Internet Protocol version 6 (IPv6) [RFC2460], this field is called the "Next Header" field.

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Transaction Internet Protocol, Version 3.0

https://www.ietf.org/rfc/rfc2371.txt

Saved by uncleflo on December 2nd, 2016.

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

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Lukasz Kujawa

https://systemsarchitect.net/lukasz-kujawa/

Saved by uncleflo on December 2nd, 2016.

Hi. My name is Lukasz Kujawa. I’m family orientated human friendly software engineer. I specialise in designing systems for high traffic environments. I’m an evangelist of coding standards. My mother tongue is PHP although I’m fluent in other languages and dialects. Software development is my passion and work. I’m interested in almost EVERYTHING related to this domain. Starting from elementary particles through electronics, operating systems, networking, low level programming, databases, design patterns, high level languages, frameworks and ending on application live cycles and team management methodologies.

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Web Services Atomic Transaction (WS-AtomicTransaction)

http://docs.oasis-open.org/ws-tx/wsat/2006/06

Saved by uncleflo on November 17th, 2016.

Web Service Atomic Transaction is an OASIS standard. To achieve all-or-nothing property for a group of services, it defines three protocols (completion, volatile two-phase commit, and durable two-phase commit), and a set of services. These protocols and services together ensure automatic activation, registration, propagation and atomic termination of Web services. The protocols are implemented via the WS-Coordination context management framework and emulate ACID transaction properties. Following the standard, a distributed transaction has a coordinator, an initiator, and one or more participants. This document describes the WS-AtomicTransaction namespace. It also contains a directory of links to related resources using Resource Directory Description Language (RDDL) 2.0.

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