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Developers Log

A blog about software developing and technology

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How to do a left outer join in Linq

How to do a left outer join in Linq using groupJoin.

MongoDB Sort : how to fix maximum RAM exceeded error

Learn how to fix the "Sort operation used more than the maximum 33554432 bytes of RAM" error when sorting a MongoDB collection.

MongoDB: how to filter a field containing a string

Learn how to build LIKE queries in MongoDB using regular expressions.

Kali Linux

Installing Kali, an specific purpose Linux distribution based on Debian and oriented to security and pen testing.

MongoDB: export a collection to mutiple files

Quick guide to exporting a MongoDD collection into multiple files.

MongoDB: how to filter by multiple fields

Learn how to filter by multiple fields in MongoDB, and how to use basic operator with this MongoDB guide for SQL users.

How to fix: Cross origin requests are only supported for protocol schemes

How to fix this CORS policy error message: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https

How to install ifconfig in Debian Stretch

ifconfig has been deprecated and not installed by default in debian Stretch. learn how to use the ip command alternative, or how to install ifconfig from the Debian repositories

Implementing IEnumerable and IEnumerator in C#

Quick guide to implementing IEnumerable and IEnumerator on your custom data structures.

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