Server software

Operation systems

Linux systems CentOS

Debian

Gentoo

Ubuntu

Microsoft Windows server 2008, 2012 a 2016.

WEB servers

Apache HTTP Server

Nginx

Database servers

Oracle

Firebird

MariaDB

MySQL

Elasticsearch

Influxdb

Redis

PostgreSQL

Microsoft SQL

FTP servers

ProFTPD

IMAP servers

Courier IMAP

Dovecot

SSL wrappers

Stunnel

SSH servers

OpenSSH

Firewalls & IDS

Iptables (linux)

MikroTik

Windows Firewall

Surikata

Nftables

ModSecurity

Security software

Fail2ban

Nessus

Owasp

Burp Suite

ZAP

Servicev applications

Nextcloud