Introduction Migrating a production Gitea instance is a critical operation that requires careful planning and execution. In this multi-part series, I'll walk you through the complete process of migrating Gitea from a Windows Hyper-V environment to a fresh Linux VPS in your data center. This first installment focuses

What rDNS is? Reverse DNS involves querying the domain name associated with an IP address. Unlike traditional DNS, where domain names are mapped to IP addresses, reverse DNS retrieves domain names from IP addresses. For example, if google.com has the A record mapping to the IP address 142.250.

Commonly used flags: * -4: Use ipv4 only * -6: Use ipv6 only * -c: Stop after sending specified counts. * -I: Specify the interface. * -n: Numeric output only * Example: * Commonly used flags: * -4: Perform DNS lookup to retrieve ipv4 address associated with the hostname. * -6: Perform DNS lookup to retrieve ipv6 address associated

Commonly used flags: * -c: Create a new archive * -f: Create a output file. * -x: Extract from tar archive. * -t: List the contents of tar without extracting. * -r: Append file to an existing archive * Example: * Commonly used flags: * -l: List compressed size, uncompressed size, ratio, uncompressed name * —v: enable verbose * Example:

* Commonly used flags: * -h : Display result in human readable format. * -T: Display the file system type. * df [fileName]: Display information about the file system containing the provided file name or directory * Example Command: * Commonly used flags: * -h: Human readable format * -s: Summarize i.e display one total for each argument.

In the previous series, we discussed about installing updates, setting timezone, changing hostname and more in detail. Today in this series we will be discussing about firewall setup. Let’s first get to know about firewall. It’s a security system that monitors and controls incoming and outgoing network traffic

After you deployed a server from any hyper visor or any cloud service providers like: Linode , Azure .they will give you either the public key or password along with the IP address. The basic thing you will perform is just do: ssh yourserver@[ip] Password:***** And boom you are logged

Hi, I’m Sanjay Subedi, a technologist from Nepal. I work mostly around DevOps, cloud infrastructure, and systems, with a bit of security mixed in. I enjoy building things, automating workflows, and understanding how systems behave under real-world pressure. On a daily basis, I experiment, learn, and vibe-code—sometimes improving