Vyacheslav, Автор в IT Blog

How to disable guest access in Ubuntu

Open the configuration file for the LightDM display manager in a text editor, which is used by default for Ubuntu and Xubuntu distributions:

Shutting down the Linux server with the Power button

There were cases when it was urgent to turn off some Linux Ubuntu servers using the Power button, but when it was pressed, nothing happened. And to go over SSH and enter the poweroff or shutdown commands, the option is not optimal. So the solution to this inconvenience is to install ACPID (Power Management Services):

How to write CRON logs to a separate file

By default, cron logs are written to the /var/log/syslog file, and the result of the tasks is sent to an email to the user on whose behalf the task is executed, for example, when I executed the script, an entry was added to /var/log/syslog:

Installing Rsyslog + Loganalyzer + MySQL

I will give an example of installing and configuring Rsyslog + Loganalyzer + MySQL.

Installing and using Tshark & Wireshark

Wireshark (formerly Ethereal) is a traffic analyzer program for computer networks. Tshark is the console version, wireshark is the GUI version.

How to hide email on a site from spammers

The first way through JavaScript:

Installing and using Ettercap

Ettercap is a tool for analyzing computer network security.

Installing and starting the Teamspeak3 voice server

Download the Teamspeak3 server distribution from the official site https://www.teamspeak.com/en/downloads/
Near the Download button there is also a link copy button, after which you can download directly to the server with the command:

Clearing FDB tables on D-Link DGS-3100 from CRON

In 2013, I came up with a primitive solution to the problem with the D-Link DGS-3100 switch, which with an average load can often stop passing traffic through itself.

Configuring SSL in Nginx

Let’s say Nginx is installed, the site opens via http, and we want it to open via https.