cloud
Networking
- Latency, Packet loss Troubleshooting
- What is Tunneling ?
- What are VLANs ?
- What are the advantages & disadvantages of VPN ?
- What is NAT (Network Address Translation)?
- What is a loopback address?
- Private Address Space
- Difference between Socket and Port
Cloud
- Cloud Logging and the Docker Firehose
- checking Ip address of amazon after reboot
- Scalr - Open source cloud management tool
Linux
- Testing with OpenSSL
- RESTful API Design: nouns are good, verbs are bad
- Multiple Hop SSH using Putty
- Very slow ssh logins on Fedora 22
- Postfix + SES : SASL authentication failed
- My Experiences With Linux: Centos7 Upgrading Kernel to 3.19
- Restrict SFTP to Home Folder
- Installing NDJBDNS on CentOS 6.4
- Solution: bash: /usr/local/bin/rsync: Argument list too long
- How to work on IPMI and IPMITOOL
- Fun with PXE boot Centos 6.3 and SuperMicro
- HowTo Edit Initrd.img in RHEL/CentOS 6
- Installing and Configuring the DNS slave Server.
- DNS replication slow
- YUM rollback in Centos 5 and 6
- Wget JDK
- How to increase semaphore value in linux
- Practice Linux Online
- Understanding Linux CPU Load
- Vi editor Cheat Sheet
- Unix history and timeline
- Powerful Awk Built-in Variables
- mysql auto increment Reset
- Downgrade php to PHP 5.2 from PHP 5.3 on Ubuntu 10.04 and higher
- Summing column values using AWK
Bash
- Multiple Hop SSH using Putty
- Very slow ssh logins on Fedora 22
- Powerful Awk Built-in Variables
- checking Ip address of amazon after reboot
- Summing column values using AWK
PHP
- How to check which ini file is in use by php
- Downgrade php to PHP 5.2 from PHP 5.3 on Ubuntu 10.04 and higher
Mysql
- mysql dump of data only - no table and database schema
- Mysql Database Backup script
- Backing Up MySQL Database
- How to check how much free space we have in Mysql database
- TRIMMIG IN MYSQL
- Running mysql query from shell script
- Adding user to Mysql
- how to find total number of mysql slow queries
- Taking database backup on amazon s3
- Recover/Reset MySQL root Password
- mysql auto increment Reset
General
- Leap Second - 1 Minute with 61 seconds
- What is Usenet News ?
- Inbuild FTP tool in browser
- Steps for Registering Property in India
- FUMSI Article: Twitter for business intelligence
Administration
Password
Amazon EC2
backup
- mysql dump of data only - no table and database schema
- Mysql Database Backup script
- Backing Up MySQL Database
- Taking database backup on amazon s3
Cloud Computing
database
- mysql dump of data only - no table and database schema
- Mysql Database Backup script
- Backing Up MySQL Database
- How to check how much free space we have in Mysql database
- basic postgresql tips
- Taking database backup on amazon s3
Shell Script
- Bash serial execution of commands and exit on critical
- Conditional variable assignment/ substitution
- Running mysql query from shell script
PostgreSQL
Nagios
- Monitor Failed Jenkins Job
- NRPE: Unable to read output
- Monitoring Windows Servers Agentlessly - WMI plugin
Windows
Puppet
Outsourcing
ubuntu
YUM
DNS
Cron. Jenkins
Jenkins
- Automating Terraform Projects with Jenkins
- Triggering Jenkins builds by URL
- Running Jenkins to work with Apache on Port 80
check_mk
Dashboard
ruby
Ansible
MYSQL
Docker
- Cloud Logging and the Docker Firehose
- Guide to automating a multi-tiered application securely on AWS with Docker and Terraform
- Convert Any Server to a Docker Container
- Service Discovery and Load balancing Internals in Docker 1.12
- Docker exec TERM environment variable not set
Python
Apache
Monitoring
Terraform
- Taint all resources from one module
- Terraform Remote State Server
- Automating Terraform Projects with Jenkins
- Ansible inventory generated from Terraform
- Terraform, VPC, and why you want a tfstate file per env
IAC
K8s
- AutoScaling your Kubernetes cluster on AWS
- Avoiding Hazards with Postgres on Kubernetes
- Overlay network performance testing
- A single AWS Elastic Load Balancer for several Kubernetes services using Kubernetes Ingress
- Configuring kubectl for multiple clusters
- Calico, Flannel, Weave and Docker Overlay Network
k8s
- SOPS with Azure KeyVault secret and AKS AAD Pod Identity
- Deploying Virtual kubernetes Cluster
- Nginx ReverseProxy Pod in kubernetes
- Signing images and creating SBOM using cosign
- Signing images and creating SBOM using cosign in CI Pipeline
- How to delete the dangling namespace in kubernetes
- ModSecurity Web Application Firewall in kubernetes Nginx Ingress controller
- Creating-Kubernets-Secret-From-TLS-Cert
- Comparision of Function As a Service Frameworks
- Kubernetes security
- Writing a Terraform provider
terraform
API
Vault
faas
- Creating-Kubernets-Secret-From-TLS-Cert
- Comparision of Function As a Service Frameworks
- Kubernetes security