Melio’s Post

Interested in reducing AWS costs? Read how I helped Melio slash AWS expenses by 20%: #AWS #FINOPS #MELIO #DEVOPS

🚀 Exciting News! 🚀 Just published a new blog post on Medium about how we at Melio Payments managed to reduce our monthly AWS bills by 20% without breaking a sweat! 💡💰 If you're looking to optimize your cloud costs and drive efficiency, this is a must-read. I dive into the strategies and tools we used to achieve these significant savings. Check it out and let me know your thoughts! 🔗 [Read the full article here] https://lnkd.in/dC3J4Zpi #CloudCostOptimization #AWS #DevOps #MelioPayments #Melio #FinOps #BlogPost

𝐀𝐖𝐒 𝐕𝐏𝐂 𝐒𝐞𝐫𝐯𝐢𝐜𝐞 𝐈𝐧𝐭𝐞𝐫𝐯𝐢𝐞𝐰 𝐐𝐮𝐞𝐬𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐧𝐬𝐰𝐞𝐫𝐬 Here are some interview questions related to AWS Virtual Private Cloud (VPC) for experienced DevOps Engineer roles, along with answers: 1. What is AWS VPC, and how does it enable network isolation and customization for cloud resources? Answer: AWS VPC is a logically isolated section of the AWS Cloud where you can launch AWS resources. It enables network isolation and customization by allowing you to define your network configuration, including IP address ranges, subnets, and route tables, providing control and security for your cloud resources. 2. What is the primary difference between a public subnet and a private subnet in an AWS VPC? Answer: In a VPC, a public subnet is associated with a route table that directs traffic to the internet via an Internet Gateway (IGW), making it accessible from the internet. A private subnet is not associated with an IGW and is intended for resources that should not be directly accessible from the internet. 3. Explain the purpose of Network Access Control Lists (NACLs) in AWS VPC and how they differ from Security Groups. Answer: NACLs are stateless, optional network-level security controls for VPCs. They allow or deny traffic at the subnet level based on rules you define. Unlike Security Groups, NACLs are stateless and evaluate traffic on a per-rule basis, making them less granular but providing broader control over traffic. 4. What is an AWS VPC Peering connection, and under what circumstances would you use it in a multi-VPC architecture? Answer: VPC Peering is a way to connect two VPCs to allow instances in each VPC to communicate with each other. It’s used in scenarios where you need to create a shared network or allow resource sharing between different VPCs, such as in a multi-tier application with separate VPCs for development and production. 5. Explain the purpose and benefits of using AWS Transit Gateway in a VPC architecture. Answer: AWS Transit Gateway is a fully managed service that simplifies network connectivity between VPCs and on-premises networks. It allows for centralized management of routing and simplifies connectivity in complex, multi-VPC environments, reducing the administrative overhead. 6. What is an AWS Site-to-Site VPN, and how does it enable secure communication between on-premises networks and VPCs? Answer: An AWS Site-to-Site VPN is a secure connection between an on-premises network and a VPC. It uses encrypted tunnels to ensure data confidentiality and integrity, allowing resources in the VPC to securely communicate with on-premises resources. Follow Bharath Kumar Reddy for much such simplified #cloud/ #devops content. #devops #aws #azure

Preparing for the Amazon Web Services (AWS) SysOps Administrator - Associate exam? I passed the exam last week and want to share a few tips and resources. 👇 Study Strategy: ✔️ Review the official exam guide and documentation from AWS to build a working understanding of each domain and the related services. (3 months out) ✔️ Hands-on experience in the AWS management console focusing on logging, monitoring, workload automation, networking, and configuration skills. (3 months out) ✔️ Take a few practice exams to get some initial feedback on strengths and areas of need. Use the score reports to determine a study plan. (2 months out) ✔️ Take and re-take more practice exams until achieving 95%+. (1 month out) ✔️ Save 1-2 practice exams until the week of the exam and use them to simulate an actual testing experience. (1 week out) It’s important to know everything in the exam guide but these are a few concepts that I focused on: 🔸 EventBridge and event-driven architecture. 🔸 Cloudformation stacks and CLI commands. 🔸 DNS record types and aliases - A record, CNAME, etc. 🔸 Route 53 routing policies - failover, geoproximity, latency, etc. 🔸 VPC concepts - private/public subnets, flow logs, NACLs, internet gateways. 🔸 RDS performance optimization - read replicas, RDS proxy. 🔸 Logging use cases - VPC flow logs, ELC access logs, Cloudtrail, Cloudwatch. 🔸 Storage Gateway protocols (NFS, iSCSI, SMB) and use cases (Tape, S3 File, FSX File, Volume.) 🔸 Debugging and troubleshooting common scenarios and configuration issues. Helpful Resources: ☁️ Jon Bonso's AWS Certified SysOps Administrator Associate Practice Exams. Absolutely essential! High-quality questions and a realistic simulation of the testing experience. https://lnkd.in/epnaWtyi ☁️ Stéphane Maarek and Abhishek Singh's AWS Certified SysOps Administrator Associate practice exams. More high-quality practice with scenario-based questions. https://lnkd.in/ew4CszxY ☁️ Amazon Web Services (AWS) Certified SysOps Administrator – Associate (SOA-C02) Exam Guide paired with AWS official documentation to fill gaps in knowledge. https://lnkd.in/edXKQDxu I found the SysOps exam to be the most challenging of the three associate exams. The scope is broad and it requires deep knowledge of configuring, deploying, managing, and operating workloads on AWS as well as implementing security controls and compliance requirements.   I’m excited to take this next step in my AWS journey and I’m looking forward to applying these skills in my current role. Thank you to Principal Financial Group for continuing to provide opportunities and resources to grow and validate my AWS skills! #awscertified #cloudengineer #awscloud #sysops https://lnkd.in/eEQTJsUY

AWS Three Tier Architectue ! Good exercise on how to deal with terraform to build an AWS Infrastructure. Terraform is a very powerful tool when it comes to dealing with cloud Infrastructure which is a great skill for every data and DevOps engineers. enjoy the source code  https://lnkd.in/dqFiP3cF I would appreciate your suggestions and comments

Today, AWS released a prescriptive guidance with best practices for using the Terraform AWS provider. This is a mandatory guidance for anyone provisioning resources in the AWS cloud using Terraform. There are many valuable insights, from diverse perspectives, that you wouldn't otherwise have access to without lots of practical experience in multiple scenarios. Take a look, trust me, it's really worth it. 🤘 #aws #terraform

🔧 Creating AWS Infrastructure with Terraform: Step-by-Step Guide 🔧 Unlock the power of Infrastructure as Code (IaC) with this comprehensive blog post on creating AWS infrastructure using Terraform. Whether you're looking to automate your cloud infrastructure or streamline deployment processes, this guide has you covered. 🔗 https://lnkd.in/gWMyQ97s Perfect for both beginners and experienced professionals, this article provides clear instructions and practical insights to help you get started with Terraform on AWS. #Terraform #AWS #InfrastructureAsCode #DevOps #CloudComputing #Automation #TechGuide #AWSInfrastructure #awscommunitybuilder #awscommunity #aws

The AWS console is convenient for managing cloud infrastructure, especially for beginners. However, it has challenges when used at scale, so tools like ControlMonkey and Terraform can help transition to Infrastructure as Code. #aws #awscloud #cloud #advanced300 #amazonvpc #awsnetworkfirewall #awspartnernetwork #awstransitgateway #customersolutions #networkingcontentdelivery #technicalhowto #awscompetencypartners #awspartnerguestpost #awspartnersuccessstories #controlmonkey #terraform

🔒🌩️ Excited to share this informative article on how to secure your cloud infrastructure with Terraform in Azure DevOps! Check out this step-by-step guide to ensure the highest level of security for your cloud environment. #CloudSecurity #Terraform #AzureDevOps Read more here: https://lnkd.in/gpm2F__x 🚀🔒

Infrastructure as Code lets you manage your cloud resources with as much control as you have over your code. And here Ifeanyi helps you choose the right IaC tool. He compares AWS CDK, CloudFormation, and Terraform & walks you through use cases.