System & Network Admin

Programming book reviews, programming tutorials,programming news, C#, Ruby, Python,C, C++, PHP, Visual Basic, Computer book reviews, computer history, programming history, joomla, theory, spreadsheets and more.

Introduction: An FTP server allows connected users to download, upload, and navigate the directories of files stored on the server. After this server setup is complete, you will be able to access the FTP server via terminal, or by using its credentials in an FTP client like FileZilla or Cyberduck. We'll use vsftpd as well

Introduction: Big business and small startups alike, servers form the core infrastructure of any tech company. If you're setting up those servers yourself, you'll want to make sure you're doing it right. Linux systems form the backbone of the world's server computers, and a good portion of those machines are running on Ubuntu (or some kind of

Introduction: In business, proxy servers are often used in penetration testing to simulate attacks on networks without leaving a trace. Here, we're going to set up a proxy server using ProxyChains. ProxyChains is a powerful open source tool for passing infiltrating traffic through a number of proxies, making it difficult to attribute traffic to its

How do you set up your servers? You probably just know how to, like it's an instinct. But is it the absolute best way to do it? Are you leaving holes in your security, or forgetting to add users that desperately need access? Or, look at it another way: If you're the only one who

Introduction: If you want to host content on the web — or just want to serve html files internally — there's little more reliable, better documented, and wholly supported than Apache. Its strengths justify its ubiquity: Apache serves 46% of all active websites. In this checklist, we'll walk through a basic Apache setup that lets

Introduction: While the back end of an office might be pure Linux, the machines that see daily use by employees probably aren't. Without a file server, it's difficult to make Linux and Windows computers share files nicely. he solution is to install Samba on a server, and store the files that should be shared on

In this guide, we shall take a look at how to extract tar, tar.gz, tgz, and tar.bz2 files to a specific or different directory in Linux systems.

A launchd primer covering configuration, administration and troubleshooting. Complete with examples.

Blog

In Terminal on your Mac, use launchd to run a shell script as a daemon.

When we run certain commands in Unix/Linux to read or edit text from a string or file, we most times try to filter output to a given section of interest.

In this article, we will explore how to leverage Awk to print fields and columns, providing practical examples and explanations to demonstrate its effectiveness

Using Elixir instead of Python or Ruby for shell scripting.

Unlock Linux kernel insights with eBPF tracing. Collect performance data, troubleshoot, and gain granular visibility.

Errors are easy to make when programming multiple concurrent processes or threads. Using atomic operations and well-formed locks can help to avoid such errors.

Manage and share development environments with all the frameworks and libraries you need, then publish artifacts anywhere. Harness the power of Nix.

While most enterprises lack the expertise to directly utilize eBPF and should opt for tools configured with eBPF and extended layers of functionality, help is on the way this year.

Installing and updating the OS, managing user accounts, and looking after security are just a few of the primary responsibilities of a Linux systems administrator.

This article explores FFmpeg's capabilities for converting video, audio, and image files with practical examples in Linux.

To help reduce the load on my Postfix mail servers, I rely on Postscreen (which is built in to Postfix) to help weed out bot spam and misconfigured

stress and stress-ng are essential tools for assessing and testing the performance of Linux systems under various conditions.