1.0Commerceconhttps://commercecon.pl/en/lukaszhttps://commercecon.pl/en/author/lukasz/rich600338<blockquote class="wp-embedded-content" data-secret="MswRn7VNax"><a href="https://commercecon.pl/en/autorzy/lukasz-kowalski/">Łukasz Kowalski</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://commercecon.pl/en/autorzy/lukasz-kowalski/embed/#?secret=MswRn7VNax" width="600" height="338" title="“Łukasz Kowalski” — Commercecon" data-secret="MswRn7VNax" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://commercecon.pl/wp-includes/js/wp-embed.min.js </script> https://commercecon.pl/wp-content/uploads/2026/05/1774899308082.webp800800An IT administrator with over 20 years’ experience in the maintenance and development of IT infrastructure. He specialises in the management of Linux and Windows systems, virtualisation, and ensuring the security and business continuity of production environments. His work combines open-source technologies with commercial solutions, as he focuses on stability, performance and the automation of […]