Alasql JavaScript SQL Database Library: User ManualAndrey Gershun
?
This document provides an overview and user manual for Alasql, an open source JavaScript SQL database library. Alasql allows users to execute SQL statements on JavaScript data and interface with external databases using a familiar SQL syntax. The document covers key features like SQL data querying and manipulation, database definition/management, integration with JavaScript frameworks and Node.js, and processing of file-based data formats. Usage examples demonstrate both synchronous and asynchronous execution of SQL on in-memory and indexed database data sources.
SSL certificates in the Oracle Database without surprisesNelson Calero
?
Presentation delivered on UKOUG conference in December 2019.
Abstract: Nowadays database installations are required to use secure connections to communicate with clients, from connecting to the database listener to interact with external services (for example to send emails from the database).
Also since a couple of years ago, it has been required to use stronger protocols like TLS 1.2 (SHA2 algorithm), which requires extra configuration in older database releases.
This presentation shows how SSL certificates work from a DBA perspective, which tools are available and examples of configuring and troubleshooting their usage from the Oracle database. It also explores the implications and how to implement TLS 1.2 and common errors found in real life usage.
In 40 minutes the audience will learn a variety of ways to make postgresql database suddenly go out of memory on a box with half a terabyte of RAM.
Developer's and DBA's best practices for preventing this will also be discussed, as well as a bit of Postgres and Linux memory management internals.
Rapid Home Provisioning is a new feature in Oracle Grid Infrastructure 12c R2 that provides a simplified way to provision and patch Oracle software and databases. It uses a centralized management server and golden images stored on ACFS to deploy pre-packaged and patched Oracle homes to client nodes. Administrators can easily create working copies of golden images, deploy databases from the working copies, and seamlessly patch databases by moving them to a working copy based on a newer patched golden image with a single command.
How to Avoid the Top 5 NGINX Configuration MistakesNGINX, Inc.
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When helping NGINX users, we see the same configuration mistakes over and over again. Occasionally, these configurations are even written by fellow NGINX engineers!
Some misconfigurations are worse than others. Minor mistakes might just hurt NGINX performance a bit, but others can introduce serious security vulnerabilities. Not only can those mistakes result in data loss, they have the potential to snowball into countless other negative side effects: data breaches, loss of reputation, and ex?customers.
In this webinar, we explore five of the most prevalent NGINX misconfigurations. Learn how to detect them and ¨C most importantly ¨C how to avoid and correct them.
API Security Teodor Cotruta discusses API security and provides an overview of key concepts. The document discusses how API security involves protecting APIs against unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. It also outlines methods for implementing API security such as HTTP authentication, TLS, identity delegation, OAuth 1.0, OAuth 2.0, Federation, SAML, JWT, OpenID Connect, JWToken, JWSignature and JWEncryption.
Administracion de WebSphere MQ for zOS v7.0Oscar V
?
Este documento presenta una gu¨ªa para administrar WebSphere MQ for z/OS v7.0. Explica los componentes de WMQ, el proceso de instalaci¨®n, y cubre temas como la configuraci¨®n de colas, canales, clusters, seguridad y soluci¨®n de problemas. La agenda incluye mensajer¨ªa entre aplicaciones y WMQ, instalaci¨®n, administraci¨®n, comunicaci¨®n entre Queue Managers, integraci¨®n por publicaci¨®n/suscripci¨®n, Java Message Service, y soporte para aplicaciones en IMS y CICS.
Learn how to load balance your applications following best practices with NGINX and NGINX Plus.
Join this webinar to learn:
- How to configure basic HTTP load balancing features
- The essential elements of load balancing: session persistence, health checks, and SSL termination
- How to load balance MySQL, DNS, and other common TCP/UDP applications
- How to have NGINX Plus automatically discover new service instances in an auto-scaling or microservices environment
Get Your Insecure PostgreSQL Passwords to SCRAMJonathan Katz
?
Passwords: they just seem to work. You connect to your PostgreSQL database and you are prompted for your password. You type in the correct character combination, and presto! you're in, safe and sound.
But what if I told you that all was not as it seemed. What if I told you there was a better, safer way to use passwords with PostgreSQL? What if I told you it was imperative that you upgraded, too?
PostgreSQL 10 introduced SCRAM (Salted Challenge Response Authentication Mechanism), introduced in RFC 5802, as a way to securely authenticate passwords. The SCRAM algorithm lets a client and server validate a password without ever sending the password, whether plaintext or a hashed form of it, to each other, using a series of cryptographic methods.
In this talk, we will look at:
* A history of the evolution of password storage and authentication in PostgreSQL
* How SCRAM works with a step-by-step deep dive into the algorithm (and convince you why you need to upgrade!)
* SCRAM channel binding, which helps prevent MITM attacks during authentication
* How to safely set and modify your passwords, as well as how to upgrade to SCRAM-SHA-256 (which we will do live!)
all of which will be explained by some adorable elephants and hippos!
At the end of this talk, you will understand how SCRAM works, how to ensure your PostgreSQL drivers supports it, how to upgrade your passwords to using SCRAM-SHA-256, and why you want to tell other PostgreSQL password mechanisms to SCRAM!
October OpenNTF Webinar - What we like about Domino/Notes 12, recommended new...Howard Greenberg
?
In this webinar OpenNTF members will discuss the Domino/Notes 12 features they like and suggest for everyone to check out!
The topics and speakers will be:
Time-based One-time Authentication (TOTP) - Roberto Boccadoro
TOTP allows multi-factor authentication. When users login to a Domino web server they have to provide a time-based one-time use password in addition to their usual name/password. This is done using a third party application like Google Authenticator, Authy or Duo Mobile on their mobile devices/computers.
Domino OSGI Tasklet Service (DOTS) - Serdar Basegmez
Create Domino server tasks using Java OSGI plugins. These can be scheduled and can interface with the server console using TELL commands.
One Touch Setup for Domino - Roberto Boccadoro
In previous versions of HCL Domino, setting up a Domino server involved multiple steps. Starting with Domino 12, you can use one-touch Domino setup to set up a server in just a single step.
Ctypes provides an easy way to extend Python with functions from C libraries without needing to write C code or dependencies like SWIG. It works by dynamically loading shared libraries and allowing Python functions to call C functions. Ctypes abstracts away the complexities of type conversions and memory management to make the process simple. Developers can write Python callback functions, define C structures and unions in Python, and interface with C libraries using just a few lines of Python code. This makes ctypes a popular modern alternative for creating Python bindings for C code.
Apache Sqoop: A Data Transfer Tool for HadoopCloudera, Inc.
?
Apache Sqoop is a tool designed for efficiently transferring bulk data between Hadoop and structured datastores such as relational databases. This slide deck aims at familiarizing the user with Sqoop and how to effectively use it in real deployments.
Would you ever play an online game if you were not able to communicate with your teammates? Isn¡¯t it fun if you can make new friends, arrange pre-made games and celebrate your victories with people you like to play with?
Riot Games¡¯ League of Legends handles millions of online players at any given time. Each chat server is responsible for routing over 1 billion real time events a day. In order to support the overwhelming user base and be prepared future growth, as well as pave the road for the upcoming features, chat infrastructure had to be designed and built with the utmost care, so that it would never fail the players.
In this talk I would like to present how we achieved linear scalability, improved the overall fault tolerance, created a framework for real time code upgrades and got ready for the new features we want to ship. I will also discuss in detail why we chose to use Erlang as a foundation for the system, and why we migrated our data from MySQL to Riak.
Die ultimative Anleitung fu?r HCL Nomad Web Administratorenpanagenda
?
Webinar Recording: https://www.panagenda.com/webinars/die-ultimative-anleitung-fur-hcl-nomad-web-administratoren/
HCL Nomad Web ist DAS hei?e Thema in der Notes-Welt. Immer mehr Unternehmen erw?gen, ihre HCL Notes-Landschaft mit Nomad Web zu erg?nzen oder sogar komplett zu ersetzen. Es ist verst?ndlich, dass die Ver?nderungen und neuen Technologien ¨¹berw?ltigend wirken k?nnen. Um dem entgegenzuwirken, erfahren Sie in diesem Webinar alles, was Sie ¨¹ber Nomad wissen m¨¹ssen ¨C angefangen von den ersten Schritten bis hin zum endg¨¹ltigen Rollout bei den Anwendern. Alles praxisnah und leicht verst?ndlich erkl?rt.
Verpassen Sie auf keinen Fall dieses aufschlussreiche Webinar mit dem renommierten HCL Ambassador Marc Thomas. Gewinnen Sie wertvolle Erkenntnisse, die Sie sofort in die Tat umsetzen k?nnen, denn alles, was Sie brauchen, ist in Ihrer HCL CCB-Lizenz bereits enthalten oder kostenlos erh?ltlich. Egal, ob Sie bereits in die Welt von HCL Nomad Web eingetaucht sind, den Einstieg planen oder einfach nur neugierig sind, ob die L?sung auch f¨¹r Sie geeignet ist ¨C wenn Sie nicht in der Vergangenheit stecken bleiben wollen, sollten Sie dieses Webinar nicht verpassen!
Was Sie lernen werden
- Anforderungen, Vorteile, und Beschr?nkungen von HCL Nomad Web
- Installation auf dem Server (mit und ohne HCL SafeLinx)
- Initiales Setup f¨¹r Endbenutzer inkl. ?bernahme des bestehenden Notes Client Arbeitsbereiches
- Umgang mit virtuellen Infrastrukturen wie Citrix, VMWare, TS und VDI
- Betrieb, Optimierung und Fehlerbehebung auf Server und Client
In this talk Elad Raz from Mellanox Technologies talks about his effort to open source switch development and transition from proprietary SDKs to a standard, in-kernel solution.
The document provides an overview of WebLogic Server topology, configuration, and administration. It describes key concepts such as domains, servers, clusters, Node Manager, and machines. It also covers configuration files, administration tools like the Administration Console and WLST, and some sample configuration schemes for development, high availability, and simplified administration.
The document discusses several models for representing hierarchical or tree-like data structures in relational databases, including adjacency list, closure table, path enumeration, nested set, and various extensions of the David Chandler model. It provides examples of creating tables and querying data for each model, and notes some advantages and limitations of each approach.
XFS is a file system designed for large storage needs and high performance. It supports large files and directories through its use of extents to track file data locations. XFS provides features like dynamic inode allocation, extended attributes, disk quotas, and crash recovery through write-ahead logging to enable quick recovery of metadata after an unclean shutdown.
An introduction to HTML5 and its API's for the extream beginners those who already know what is HTML. Presentation also includes few features the CSS3.
Spring Boot Tutorial | Microservices Spring Boot | Microservices Architecture...Edureka!
?
Microservices Architecture Training: https://www.edureka.co/microservices-...
This Edureka's tutorial on "Spring Boot Tutorial" will help you understand how to create Spring Boot project and implement various annotations of Spring Boot in your projects
This document provides an overview of how to run, debug, and tune Apache Flink applications. It discusses:
- Writing and testing Flink jobs locally and submitting them to a cluster for execution
- Debugging techniques like logs, accumulators, and remote debugging
- Tuning jobs by configuring parallelism, memory settings, and I/O directories
- Common issues like OutOfMemoryErrors and how to resolve them
This document discusses JSON array indexes in MySQL. It explains that MySQL 8.0.17 introduced the ability to index the contents of JSON arrays using a multi-valued index. This allows for faster lookups of values in JSON arrays using functions like JSON_CONTAINS. It provides examples of creating a multi-valued index on a JSON array column and using the index to find rows where a value is a member of the array. It also demonstrates some limitations, such as not allowing JSON null values in indexed arrays.
Administracion de WebSphere MQ for zOS v7.0Oscar V
?
Este documento presenta una gu¨ªa para administrar WebSphere MQ for z/OS v7.0. Explica los componentes de WMQ, el proceso de instalaci¨®n, y cubre temas como la configuraci¨®n de colas, canales, clusters, seguridad y soluci¨®n de problemas. La agenda incluye mensajer¨ªa entre aplicaciones y WMQ, instalaci¨®n, administraci¨®n, comunicaci¨®n entre Queue Managers, integraci¨®n por publicaci¨®n/suscripci¨®n, Java Message Service, y soporte para aplicaciones en IMS y CICS.
Learn how to load balance your applications following best practices with NGINX and NGINX Plus.
Join this webinar to learn:
- How to configure basic HTTP load balancing features
- The essential elements of load balancing: session persistence, health checks, and SSL termination
- How to load balance MySQL, DNS, and other common TCP/UDP applications
- How to have NGINX Plus automatically discover new service instances in an auto-scaling or microservices environment
Get Your Insecure PostgreSQL Passwords to SCRAMJonathan Katz
?
Passwords: they just seem to work. You connect to your PostgreSQL database and you are prompted for your password. You type in the correct character combination, and presto! you're in, safe and sound.
But what if I told you that all was not as it seemed. What if I told you there was a better, safer way to use passwords with PostgreSQL? What if I told you it was imperative that you upgraded, too?
PostgreSQL 10 introduced SCRAM (Salted Challenge Response Authentication Mechanism), introduced in RFC 5802, as a way to securely authenticate passwords. The SCRAM algorithm lets a client and server validate a password without ever sending the password, whether plaintext or a hashed form of it, to each other, using a series of cryptographic methods.
In this talk, we will look at:
* A history of the evolution of password storage and authentication in PostgreSQL
* How SCRAM works with a step-by-step deep dive into the algorithm (and convince you why you need to upgrade!)
* SCRAM channel binding, which helps prevent MITM attacks during authentication
* How to safely set and modify your passwords, as well as how to upgrade to SCRAM-SHA-256 (which we will do live!)
all of which will be explained by some adorable elephants and hippos!
At the end of this talk, you will understand how SCRAM works, how to ensure your PostgreSQL drivers supports it, how to upgrade your passwords to using SCRAM-SHA-256, and why you want to tell other PostgreSQL password mechanisms to SCRAM!
October OpenNTF Webinar - What we like about Domino/Notes 12, recommended new...Howard Greenberg
?
In this webinar OpenNTF members will discuss the Domino/Notes 12 features they like and suggest for everyone to check out!
The topics and speakers will be:
Time-based One-time Authentication (TOTP) - Roberto Boccadoro
TOTP allows multi-factor authentication. When users login to a Domino web server they have to provide a time-based one-time use password in addition to their usual name/password. This is done using a third party application like Google Authenticator, Authy or Duo Mobile on their mobile devices/computers.
Domino OSGI Tasklet Service (DOTS) - Serdar Basegmez
Create Domino server tasks using Java OSGI plugins. These can be scheduled and can interface with the server console using TELL commands.
One Touch Setup for Domino - Roberto Boccadoro
In previous versions of HCL Domino, setting up a Domino server involved multiple steps. Starting with Domino 12, you can use one-touch Domino setup to set up a server in just a single step.
Ctypes provides an easy way to extend Python with functions from C libraries without needing to write C code or dependencies like SWIG. It works by dynamically loading shared libraries and allowing Python functions to call C functions. Ctypes abstracts away the complexities of type conversions and memory management to make the process simple. Developers can write Python callback functions, define C structures and unions in Python, and interface with C libraries using just a few lines of Python code. This makes ctypes a popular modern alternative for creating Python bindings for C code.
Apache Sqoop: A Data Transfer Tool for HadoopCloudera, Inc.
?
Apache Sqoop is a tool designed for efficiently transferring bulk data between Hadoop and structured datastores such as relational databases. This slide deck aims at familiarizing the user with Sqoop and how to effectively use it in real deployments.
Would you ever play an online game if you were not able to communicate with your teammates? Isn¡¯t it fun if you can make new friends, arrange pre-made games and celebrate your victories with people you like to play with?
Riot Games¡¯ League of Legends handles millions of online players at any given time. Each chat server is responsible for routing over 1 billion real time events a day. In order to support the overwhelming user base and be prepared future growth, as well as pave the road for the upcoming features, chat infrastructure had to be designed and built with the utmost care, so that it would never fail the players.
In this talk I would like to present how we achieved linear scalability, improved the overall fault tolerance, created a framework for real time code upgrades and got ready for the new features we want to ship. I will also discuss in detail why we chose to use Erlang as a foundation for the system, and why we migrated our data from MySQL to Riak.
Die ultimative Anleitung fu?r HCL Nomad Web Administratorenpanagenda
?
Webinar Recording: https://www.panagenda.com/webinars/die-ultimative-anleitung-fur-hcl-nomad-web-administratoren/
HCL Nomad Web ist DAS hei?e Thema in der Notes-Welt. Immer mehr Unternehmen erw?gen, ihre HCL Notes-Landschaft mit Nomad Web zu erg?nzen oder sogar komplett zu ersetzen. Es ist verst?ndlich, dass die Ver?nderungen und neuen Technologien ¨¹berw?ltigend wirken k?nnen. Um dem entgegenzuwirken, erfahren Sie in diesem Webinar alles, was Sie ¨¹ber Nomad wissen m¨¹ssen ¨C angefangen von den ersten Schritten bis hin zum endg¨¹ltigen Rollout bei den Anwendern. Alles praxisnah und leicht verst?ndlich erkl?rt.
Verpassen Sie auf keinen Fall dieses aufschlussreiche Webinar mit dem renommierten HCL Ambassador Marc Thomas. Gewinnen Sie wertvolle Erkenntnisse, die Sie sofort in die Tat umsetzen k?nnen, denn alles, was Sie brauchen, ist in Ihrer HCL CCB-Lizenz bereits enthalten oder kostenlos erh?ltlich. Egal, ob Sie bereits in die Welt von HCL Nomad Web eingetaucht sind, den Einstieg planen oder einfach nur neugierig sind, ob die L?sung auch f¨¹r Sie geeignet ist ¨C wenn Sie nicht in der Vergangenheit stecken bleiben wollen, sollten Sie dieses Webinar nicht verpassen!
Was Sie lernen werden
- Anforderungen, Vorteile, und Beschr?nkungen von HCL Nomad Web
- Installation auf dem Server (mit und ohne HCL SafeLinx)
- Initiales Setup f¨¹r Endbenutzer inkl. ?bernahme des bestehenden Notes Client Arbeitsbereiches
- Umgang mit virtuellen Infrastrukturen wie Citrix, VMWare, TS und VDI
- Betrieb, Optimierung und Fehlerbehebung auf Server und Client
In this talk Elad Raz from Mellanox Technologies talks about his effort to open source switch development and transition from proprietary SDKs to a standard, in-kernel solution.
The document provides an overview of WebLogic Server topology, configuration, and administration. It describes key concepts such as domains, servers, clusters, Node Manager, and machines. It also covers configuration files, administration tools like the Administration Console and WLST, and some sample configuration schemes for development, high availability, and simplified administration.
The document discusses several models for representing hierarchical or tree-like data structures in relational databases, including adjacency list, closure table, path enumeration, nested set, and various extensions of the David Chandler model. It provides examples of creating tables and querying data for each model, and notes some advantages and limitations of each approach.
XFS is a file system designed for large storage needs and high performance. It supports large files and directories through its use of extents to track file data locations. XFS provides features like dynamic inode allocation, extended attributes, disk quotas, and crash recovery through write-ahead logging to enable quick recovery of metadata after an unclean shutdown.
An introduction to HTML5 and its API's for the extream beginners those who already know what is HTML. Presentation also includes few features the CSS3.
Spring Boot Tutorial | Microservices Spring Boot | Microservices Architecture...Edureka!
?
Microservices Architecture Training: https://www.edureka.co/microservices-...
This Edureka's tutorial on "Spring Boot Tutorial" will help you understand how to create Spring Boot project and implement various annotations of Spring Boot in your projects
This document provides an overview of how to run, debug, and tune Apache Flink applications. It discusses:
- Writing and testing Flink jobs locally and submitting them to a cluster for execution
- Debugging techniques like logs, accumulators, and remote debugging
- Tuning jobs by configuring parallelism, memory settings, and I/O directories
- Common issues like OutOfMemoryErrors and how to resolve them
This document discusses JSON array indexes in MySQL. It explains that MySQL 8.0.17 introduced the ability to index the contents of JSON arrays using a multi-valued index. This allows for faster lookups of values in JSON arrays using functions like JSON_CONTAINS. It provides examples of creating a multi-valued index on a JSON array column and using the index to find rows where a value is a member of the array. It also demonstrates some limitations, such as not allowing JSON null values in indexed arrays.
Administracion de WebSphere MQ for zOS v7.0Oscar V
48. ? Spring Boot makes it easy to create stand-alone, production-grade Spring based
Applications that you can "just run".
? We take an opinionated view of the Spring platform and third-party libraries so you can
get started with minimum fuss. Most Spring Boot applications need minimal Spring
configuration.
? If you¡¯re looking for information about a specific version, or instructions about how to
upgrade from an earlier release, check out the project release notes section on our
wiki.
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