I’m sure that using MFA (Multi-Factor Authentication) today is oblivious. For 2FA (2-Factor Authentication) the most used method is TOTP – Time-based One-time Password, when alongside with the common login:password also needs to enter a code generated by a device or software. The most known implementation is Google Authenticator but also there is a lot… Read More »
Proceeding with a Github repositories checker. To recall: the idea is to have such a check in case if somebody from developers accidentally will share our project’s private repository as public, or will create a public repository instead of making it as a private one – we will get a Slack alarm about such a… Read More »
Originally, in a Sentinel’s configs, I have used the bind 0.0.0.0 to make them accessible from external hosts. Because of this when I started rolling out this setup on a real environment faced with an issue when Sentinels could not determine a Master host and other Sentinel hosts. In this post – such an issue… Read More »
This story happened on 10/06/2017, adding this post in English now. The original post (Rus) was written almost right after the well-known Not a Petya attack in Ukraine – that’s why it’s used in the title. I had a new project assigned to me. When I started its existing setup investigation – was just shocked.… Read More »
Minikube – a utility to run a Kubernetes cluster locally on your PC. It can use Virtualbox, VMware, Hyper-V etc hypervisors which will be used to create a virtual machine with a Kubernetes cluster. Minikube is a great tool for developers or DevOps engineers to test deployments/services etc without the need to create and configure… Read More »
chroot() was added to the Version 7 Unix in 1979 and used for filesystem isolation. In fact, it’s the predecessor of the whole current containerization idea, just now there are namespaces and cgroups are used while earlier chroot was used to create an environment which is isolated from a host and can be used for… Read More »
AWS CLI supports so-called named profiles stored in the configuration file .aws/config and ~/.aws/credentials file with keys which by default contains the… Well – the “default” profile. An additional profile can be added using the aws configure command with the –profile option. Here is an example of such file with already existing two profiles: [simterm]… Read More »
One of the disappointing surprises in my AWS CloudFormation experience was the fact that it wasn’t able to automatically create cross-region VPC-peering connections. Note: this post originally was written in Rus on 28 June 2018 but now CloudFormation can do it, check the PeerRegion parameter of the AWS::EC2::VPCPeeringConnection resource. As a result – it tries… Read More »
Examples of how to use Terraform, work with its backends and modules. Here will set up a simple EC2 instance in AWS and will store Terraform’s state-files in an AWS S3 bucket. In short terms – but with real examples and links to documentation. Installation on Arch Linux: [simterm] $ sudo pacman -S terraform [/simterm]… Read More »
After the news that Dropbox adds a new limitation for users by the three devices only – I’m finally ready to install my own NextCloud to store and synchronize data. The sad thing is not exactly the three devices limit (and it will be applied for a new users only – old user who already… Read More »