Analyze Vpc Flow Logs | Security | Performance

VPC flow logs are an important part of AWS to help troubleshoot connectivity and security issues and to make sure that security group access is in the right place.

The logs capture important information about the IP traffic to and from network interfaces, subnets and VPCs in the AWS infrastructure. They are used to monitor security by tracking traffic reaching and leaving the resources(instance, databases, etc) in the AWS infrastructure.

The logs provide network flow visibility in the dynamic cloud which helps in tightening security and understand network performance.

And of course, keep the SecOps team off your back.


The flow logs provide a number of avenues to tighten your security and make sure everything is connecting as needed.

  1. They can be used to boost data collection to help in correlate and to strengthen securityinsights.
  2. Help you create baselines of your standardized network activities which in turn helps in identifying abnormal events.
  3. Identifying potential botnet activity is easier by comparing time-stamps and periodicity of certain traffic. You can also directly look for known botnet connections to interfaces and block them.
  4. Identify and block vulnerability scans by checking for ping sweeps, port scans and other malicious activities associated to discover weaknesses in the network.
  5. You can also improve troubleshooting of performance problems.
  6. Optimize connectivity inside your organization for developers, testers and ITOps teams.


The VPC flow logs help in identifying latencies, establish performance baselines and tweak apps as needed.

It provides granular information like traffic flow duration & latencies, bytes sent which in turn helps in identifying performance issues quickly. Having quantifiable data from the logs helps in providing a better user experience.

VPC flow logs are employed to monitor internal application services. The applications build on the microservices architecture heavily rely on internal traffic to communicate.

Note: Understanding VPC flow logs also provides an opportunity to save bandwidth costs like Mikuláš did. You can read more about it here.

Analyzing VPC Flow Logs

Enabling them is the easy part but analyzing VPC flow logs is just another ball game. There are multiple ways of analyzing the VPC flow logs but most of them are expensive in terms of bandwidth and time needed to set them up. Below are certain ways to set up your dashboard.


AWS has provided these logs to improve network visibility and tackle security, performance, and cost.

P.s. – We recently opened the registrations to the closed beta for visualizing VPC flow logs in a virtual environment.

Analyze Vpc Flow Logs | Security | Performance

Smart Scheduling at your fingertips

Go from simple to smart, real-time AWS resource scheduling to save cost and increase team productivity.

Learn More
More Posts

You Might Also Like

DevOps World
Effective Transition to Remote Working for DevOps
The COVID-19 pandemic has changed the work culture among DevOps, take advantage of these proven strategies to maintain productivity. Everything from cloud migration to automation tools and work culture is addressed to keep you going strong.
April 6, 2020
Cloud Parking
Our automated Cloud Parking offers more scalability and flexibility than the standard AWS Instance Scheduler, guaranteeing you reasonable billing of your Cloud Architecture.
March 24, 2020
AWS Tips & Tricks
The Proven Practices for Successful AWS Cost Optimization
Running your AWS cloud architecture can be expensive, you need to adopt strategies that tried and tested to bring down your expenses. Here are the best AWS cost optimization strategies available currently.
March 4, 2020
AWS Tips & Tricks
AWS Cost Optimization Checklist
Want to cut down on the costs of maintaining your cloud services? Here's a list of things you need to make sure when running your AWS architecture.
March 2, 2020
AWS Tips & Tricks
How to Schedule RDS Instances with an AWS Lambda function?
Save your costs with scheduled operation of your database. Start and stop the RDS instances manually with python Lambda functions.
February 25, 2020
Introducing the TotalCloud Smart Scheduler
Announcing the launch of the TotalCloud Resource Scheduler! Take complete advantage of AWS's 'pay for what you consume' model by putting a power control for every AWS resource that you use.
January 14, 2020