The ‘ip nat inside source list [number] interface [interface name] overload’ command is used in Cisco routers to configure a source NAT (Network Address Translation) rule for outbound traffic from a specific interface to the Internet. This command allows you to translate the source IP addresses of packets leaving the internal network to a different…
Linode is one of the top VPS providers in the market. They have a huge amount of customers at all levels, from the low end to enterprise. And for the last week or so they have been the target of a large number of DDOS attacks. These DDOS attacks are obviously not targeting any specific customer, but Lindoe…
Bulma is a modern CSS framework based on Flexbox. It uses many of the newest and best CSS features. It has a distinct feel and look and seems to pride itself on being widely different from older CSS frameworks, like Bootstrap. This is great in a lot of ways, and Bulma might be a good…
Most VPS providers have an hourly billing rate and then a monthly billing limit. This may be something like $0.015 per hour or $10/month. So if you only use your VPS for a few hours a month, will you be charged only a few cents? Maybe. So the way a VPS works is that when you sign…
Colocation and datacenter cabinets and racks are measures in rack units. The height of a cabinet is a set number of rack units. These rack units are usually represented by the letter “U”. A common datacenter cabinet height is 42U or 42 rack units. Servers are also measures in rack unit height. So you may…
UPDATE 2023: Virmach is not longer operating a valid service. They have stopped responding to tickets and their VPS instances are offline. Looks like the company has closed without informing customers. Virach is a low-end VPS provider. I had heard about them here and there for a few years, but recently began to see a…
Linux distributions are like religions for some people. They swear by one and will argue to the death that it is superior to all others. With people holding such strong feelings it can be difficult to find the Linux distro which is best for your virtual private server (VPS). The truth is, it largely depends on what…
Linode is a pioneer in virtual private server (VPS) hosting. They provide a simple Linux node which is quick and easy to setup. Basically they helped make VPS setup more user friendly and popular. They are now a common name in VPS hosting and are still one of the most popular Linux VPS hosts. As good…
VIM Cheatsheet: A Handy Reference This VIM cheatsheet is a concise and handy reference guide that provides a quick overview of the most frequently used commands and shortcuts in the VIM editor. VIM is a powerful and feature-rich text editor with a vast array of commands and options. Remembering all of them can be challenging, especially for…
System administrators perform a variety of tasks based around keeping systems properly up and running. Systems usually means computers, specifically computer servers. But depending on the company a system administrator (or sys admin for short) may also be responsible for networking infrastructure and other information technologies. A system administrator guarantees that the computers a company…