Have you ever wondered what happens behind the scenes when you type a URL into your browser’s address bar? It’s a seemingly simple action, but it sets off a chain …
Salman Chawhan
Salman Chawhan
Hi, I'm Salman Chawhan. I am a Senior IT Operations Engineer and Full-Stack Architect with a 9+ year track record of managing global server fleets (100+ nodes) and delivering high-performance technical systems for international enterprises. I run this blog to share production-grade insights on cloud architecture, telecom, and automation. Beyond writing, I operate an active freelance consulting practice helping global clients resolve critical IT, cloud, and telecommunication challenges on an hourly basis.Core Freelance Offerings: * RingCentral & Enterprise VoIP: Advanced IVR setup, custom queue layouts, and automated call-routing configurations. * Cloud & DevOps Engineering: Automated infrastructure deployment via AWS, Terraform, Docker, and Kubernetes. * Systems & Mailing Solutions: Proxmox hypervisor clustering, pfSense firewall failovers, and high-volume, secure bulk email delivery engines. Have a critical technical bottleneck or a system migrations project? Let's connect to deploy a fast, secure, and robust fix. [Let's Talk Projects]
In an era where online security is non-negotiable, encrypting data transmitted between web servers and users is imperative. Let’s Encrypt, a trusted Certificate Authority (CA), provides a seamless solution for …
How to filter FreeSWITCH CLI running calls log
To filter FreeSWITCH CLI running calls log, you can use the built-in command show channels concise followed by a pipe (|) and the grep command. Here’s how you can do it:Open the FreeSWITCH CLI …
Monitoring Calls with FreeSWITCH CLI: A Comprehensive Guide
The FreeSWITCH Command-Line Interface (CLI) provides powerful tools for monitoring and managing calls in your FreeSWITCH server. Whether you’re troubleshooting, gathering statistics, or simply keeping an eye on your system, …
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How to Back Up and Restore MongoDB Simple 2 command MongoDB mongodump –> For dump all mongodbmongorestore –> For restore all mongodb You can also specify the –host and –port …
PostgreSQL Backup Database and restore How to backup and restore Database * Postgres dump all the Database pg_dumpall dumps all databases in given PostgreSQL installation. Everything goes there. Additionally, it …
Redis Server Migration with Data on another Linux server Copy all files on main server under /var/lib/redis Install redis-server on new serverafter installation stop the redis service systemctl status redis-serversystemctl …
1st Download AWS Cli Exe filehttps://docs.aws.amazon.com/cli/latest/userguide/install-windows.htmlAfter Install AWS Cli Open Command PromptRun –> aws configureand enter IMA User AWS Access Key ID and AWS Secret Access Key2 Method for create …
Note: Replace yourdomain.com with you domainsudo supm2 install pm2-healthvim ~/.pm2/module_conf.json{“pm2-logrotate”: {“max_size”: “500M”,“retain”: “200”,“compress”: “true”,“dateFormat”: “YYYY-MM-DD_HH-mm-ss”,“workerInterval”: “30”,“rotateInterval”: “* * * * 30”,“rotateModule”: “true”},“module-db-v2”: {“pm2-logrotate”: {},“pm2-health”: {}},“pm2-health”: {“smtp”: {“host”: “mail.yourdomain.com“,“port”: 465,“user”: “notifications@yourdomain.com“,“password”: …