Enabling Free S3 and DynamoDB Gateway Endpoints in Default VPC in AWS
Amazon S3 and DynamoDB are probably the AWS services you use the most, but traffic to them from your VPC normally leaves through the…
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Enabling IPv6 on Gradle
Like every other JVM application, Gradle prefers IPv4 over IPv6 by default. On an IPv6-only network — or any time you want Gradle to reach…
Enabling IPv6 Automatically on TierHive Debian 13
⚠️ This assumes you will only add 1 IPv6 per host. If you plan to add more, add them from a separate part of the IPv6 range manually…
Adding IPv6 Support to Oracle Object Storage
Oracle Object Storage (S3 Compatible + IPv6) Oracle Object Storage provides S3-compatible APIs and now supports newer endpoint formats and…
Tips for Taking the CKA Exam on a 13-inch Laptop
Recently, I sat for the CKA exam using a 13-inch laptop. Since the exam environment uses an XFCE remote desktop, screen space can become a…
Fixing IPv6 and Performance Issues on ZLT S12 Pro Router (OpenWrt)
Introduction As mentioned in the previous post, I reached out to the ISP to solve the issues, but only got feedback: “The necessary…
IPv6 Keeps Breaking on Android with ZLT S12 Pro Router
I got a new router from a new ISP to check its IPv6 support. The router (ZLT S12 Pro) has an interesting IPv6 bug. Its IPv6 connection gets…
The Curious Case of IPv6 CNAME Chains on Linux Hosts
I was testing my IPv6 DNS Proxy Server while adding azurewebsite IPv6 support. Microsoft, unlike most providers, loves using multiple…
GGC Domain Decoding
I use IPvFoo to check website connectivity and I noticed that YouTube video domains had funny-looking subdomains. So I did some digging for…
Server Providers Deploy IPv6 Correctly
Why IPv6 Deserves Better Treatment from Hosting Providers Most server providers treat IPv6 the same way they treat IPv4. On the surface…
Adding IPv6 Support to SES in AWS SDK
In this post I am going to show how to enable IPv6 (dual stack) support for Amazon SES in AWS PHP SDK, JavaScript SDK and Python SDK (boto…
IPv6 Support in Public Docker Registries
Back in 2021, I checked for IPv6 support in public registries in the Docker Hub IPv6 support thread. Since Docker Hub now has IPv6 support…
Speed Up Your Network with Google BBR
Google’s BBR (Bottleneck Bandwidth and Round-trip propagation time) is a congestion control algorithm that can significantly improve network…
Intel Network PCIe Issue
I recently encountered a puzzling network issue on an Intel Network VM. The kernel was up-to-date, and all configurations seemed correct…
Setting up Grafana Alerts to monitor Applications
In the world of modern application development and infrastructure management, effective monitoring is crucial. Grafana provides a powerful…
Enabling IPv6 in Default VPC in AWS
IPv6 is the latest version of the Internet Protocol, which provides a larger address space, improved security, and enhanced performance for…
Adding Cloudflare IP to AWS Prefix List
If you’re managing an AWS environment and want to keep your security groups up-to-date with Cloudflare’s IPv6 addresses, this script can…
Using Route53 to load balance autoscaling groups
A few years back I worked on a project on AWS with some friends and we needed to load balance traffic. To save on the cost of an ALB, I…
IPv6 only hosting list 2022
I use a couple of IPv6 only VPS and I though to document them and some others together. Here IPv6 only means, Native IPv6. No NAT IPv4 or…
Pull Docker Images via IPv6
As IPv6 only servers are becoming the norm, lots of users run into the problem of pulling docker images from docker hub. ⚠️ As of August…
Setup WireGuard with global IPv6
WireGuard is becoming popular with the linux crowd as a VPN as its integrated with the linux kernel whitch provides better performance…
Enabling IPv6 on Java and Maven
With IPv6 adoption being increased due to IPv4 scarcity and more providers like AWS and Hetzner moving on to IPv6 only networks, it is…
Using IPv6 to serve github pages on custom domains
New IPv4 and IPv6 address for Github Pages are as below. SSL are working on these IPv6 addresses…
Creating CloudWatch Alarms using Terraform CDK (Part 2)
💉 Find part 1 of the article here. https://blog.miyuru.lk/cw-alarms-using-tfcdk-1/ In this post, let’s spice things up using loops and boto…
Creating CloudWatch Alarms using Terraform CDK (Part 1)
In this post, I will show how to use Terraform CDK to create and manage cloudwatch alarms. There are multiple benefits of using cdktf…
AWS 1GB Debian AMI
Update 2022: You can also use alpinelinux AMI image which is also 1GB in size. https://alpinelinux.org/cloud/ Linux AMIs from AWS are…
How to Install Consul on Debain 10
In this tutorial, we will be installing Consul on Debian 10 buster in a single node. First cd to temp folder Install the necessary packages…
Copying AWS Tags using CLI
When a AWS account have large number of resources, tags are used to maintain and group resources. Normally these tags are added using the…
How to Install OpenTracker on Debain 10
In this tutorial, we will be installing open tracker with IPv6 enabled on Debian 10 buster. First install the required packages then create…
Adding IPv6 Support to S3 in AWS SDK
In this post I am going to show how to enable IPv6 (dual stack) support for Amazon S3 in AWS CLI, AWS PHP SDK, JavaScript SDK, Python SDK…
Archive.is Cloudflare Fix
It has been reported that archive.is blocks cloudflare DNS due to cloudflare not supporting EDNS. While a quick fix might be to change the…
NPM IPv6 fix
Error : getaddrinfo ENOTFOUND registry.npmjs.org registry.npmjs.org:443 if you face the above error when trying to install NPM packages on a…
Testing CDNs for best country specific results with different DNS providers
All tests are conducted on IPv4 and from Sri Lanka. (AS18001) Overall Google and OpenDNS, which support EDNS seems the best.
HTTP to HTTPS Nginx
There are 2 methods to redirect to https in Nginx 1st method is to create a separate server block for port 80 and redirect all to https. 2nd…
How to add nginx geoip module in ubuntu
First add the nginx stable repo: Then run apt update: And get the nginx geoip module: This will download and load the module to /usr/lib…
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