Serkan Haytac

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To format strings in awk use printf

Github.com ui .currently does not natively supoport search for multiple topic tags as of now. However their api allows you to query multiple tags. Below is a simple example to query github.com with ecs and go topic tags.

If you are working on a project that involves multiple aws profiles and vscode, this trick might come handy. Depending on the project you would like to make calls from vscode interated terminal to certail aws accounts. In order to do it you need to setup env var AWS_PROFILE on the current shell session. So in order to that in vscode simply create .vscode/settings.json in your projects root and append or add the following snippet. Depending on the os you might need to slightly use different settings.

Filter and delete aws s3 object.

For a given ip addres search the security groups that includes that ip address in their rules.

To follow the examples you can download the sample json file. Generated via https://www.json-generator.com/#

AWS Docs

Both serverless framework and api gateway has the concept of stages.

Get the full attributes of rds instances with its instancesidentifier

aws --profile=HA rds describe-db-instances --query 'DBInstances[?DBInstanceIdentifier==`evox-dev`]'

AWS Docs

Not only you can query by service but also you can get notification of any changes to ip ranges by subscribing to SNS AmazonIpSpaceChanged. source

AWS recently announced SQS as an event source for lambda functions. This is now GA and looks like there is already a pr for it to to be soon implemened in serverless framework as well.

Search a npm package that is used in a project. This is useful to get ideas of how package is setup and used. github

rbac filename:package.json

Search repos with more than 100 stars. github

Per AWS docs requirements for encryptions are: https://docs.aws.amazon.com/AmazonS3/latest/dev/ServerSideEncryptionCustomerKeys.html

My day job i use ssh… alot. When you manage hundreds of servers with mission critical infastructure running on passswordless login with ssh keys can be huge time saver. I also take security pretty seriously when it comes to store sensitive information and always looking to find better ways to store sensitive information securely and also in a convenient way for it to be not cumbersome. With that thought combining ssh keys to encrypt/decrypt files made quite sense so here is a quick write up to do it for anyone else that are interested in it.

Screenshots are saved as .png files on the desktop in Mac OS X v10.6 and later. They’re automatically named “Screen Shot date at time .png.” To save your screenshot to the Clipboard instead of a file on your desktop, use

Command-Shift-Control-4

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This is a basic summary of excellent tutorial from Digital Ocean on how to setup OpenVpn with Docker.

A common server access pattern is to prevent any connection to your production servers from outside of their private subnet, and use a bastion host to access the private subnet. This pattern is very useful when you want to limit; for example ssh access, from only within the network.