Posts

Sysstat: an easy status page

3 minute read Published:

How to generate a simple status page for a server
Introduction The ```sysstat``` package contains various utilities, common to many commercial Unixes, to monitor system performance and usage activity. http://sebastien.godard.pagesperso-orange.fr/ sysstat is a standard package which comes with Slackware distribution and almost any other distribution out there. Its a very useful tool to analize and monitor linux performance. We are going to build a simple status page which will display performance metrics about the linux systems it runs on, including usage of:

PostgREST: BAAS for PostgreSQL databases

2 minute read Published:

How to install and configure PostgREST server in Slackware
Introduction PostgREST is a standalone web server that turns your PostgreSQL database directly into a RESTful API. The structural constraints and permissions in the database determine the API endpoints and operations. Using PostgREST is an alternative to manual CRUD programming. Custom API servers suffer problems. Writing business logic often duplicates, ignores or hobbles database structure. Object-relational mapping is a leaky abstraction leading to slow imperative code. The PostgREST philosophy establishes a single declarative source of truth: the data itself.

Jitsi: video conference server

8 minute read Published:

How to install and configure Jitsi video conference server in Slackware

From it’s Github page:

Jitsi Meet is an open-source (Apache) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, secure and scalable video conferences. You can see Jitsi Meet in action here at the session #482 of the VoIP Users Conference.

The Jitsi Meet client runs in your browser, without the need for installing anything on your computer. You can also try it out yourself at https://meet.jit.si .

Jitsi Meet allows for very efficient collaboration. It allows users to stream their desktop or only some windows. It also supports shared document editing with Etherpad.

Disk usage

9 minute read Published:

Analyzing disk usage in Slackware.

In this post we will explore how to free disk space without reinstalling the system, and will present some scripts to help in the process.

The Xterm

4 minute read Published:

Xterm user guide

From it’s manual page xterm(1):

The xterm program is a terminal emulator for the X Window System. It provides DEC VT102/VT220 and selected features from higher-level terminals such as VT320/VT420/VT520 (VTxxx). It also provides Tektronix 4014 emulation for programs that cannot use the window system directly.If the underlying operating system supports terminal resizing capabilities (for example, the SIGWINCH signal in systems derived from 4.3BSD), xterm will use the facilities to notify programs running in the window whenever it is resized.

The Slackware Book

4 minute read Published:

A must read for any Slackware user.

The Slackware Book can be read online in its original form at: slackbook.

I’ll reproduce here the introduction paragraphs. Please consider to collaborate with the Slackware documentation project in it’s web site