Questions, you are afraid to ask, but wish to know the answer for.

Check the way you enter your credentials acording to the picture.
The user with username (eg. john.doe@domain.cz) can log in by entering the 'john.doe@domain.cz' to the username field and choosing 'without domain' in the select box, confirming with the password.
If it's still not possible for you to log in, please contact us through our helpdesk and we will do our best to help you out with a new password or a new account created for you.

Either there have been an error made while editing, or, at present, we are doing upgrade of our redaction system.
Try to reload the web site again. If the problem persists, feel free to contact us via helpdesk.
Here, we will need to know the type of browser and operating system you use and the literal URL where the problem was seen. We are going to proceed with your request as soon as possible.

If this is youe case, please contact us through our helpdesk, and we will solve the problem for you.
Permissions, which authorizes you to such actions may be set incorrectly.

We get this question fairly often, and luckily, can be solved easily (in most cases).
Your web browser temporary stores some web-related information in its own memory (cache).
Initially, try to reload the site bypassing this cache pressing 'F5' or 'ctrl + F5'. If it is not helping, try using more power pressing 'ctrl + shift + delete' and then select from given options.
When still not enough, use our helpdesk so we can help you out.
In the message, please include your web browser, operating system and complete URL where is the problem present. We'll start working on your request as soon as possible.

This can happen when a contact form is attacked by a "robot".
These robots are programmed to glut the mailbox, where all normal requests are sent.
If you feel like a victim of such a robot, contact us via our helpdesk and we will proceed with your request as soon as possible.

URL defines a server domain address, location on the server and the type of protocol used to access the source.
To put it simple, URL is the string you type in in the browser prompt (usually at the top - see the picture) when you intend to visit a website.

If you don't feel comfortable remembering all your passwords, there is an option of using the KeePass application. In this application, you need to create a file with a master password. Next, you fill all your passwords into this file, and they are going to be protected by the master password. This can be used for logging into your e-mail account, our CMS, etc.
The whole process can be seen in images below.

Nowadays, the HTML code interpretation within various e-mail clients (Outlook, Thunderbird, ...) and portals (Gmail, Seznam, Centrum, ...) is still kind of a "dark magic". Creating such an e-mail, which shows up correctly in every interface is nearly impossible :)

To set an e-mail client, use credentials listed below. In above listed files, you'll find information needed to set your account up in frequently used clients.

  • Basic info
  • Name: Your Name
  • E-mail: Your e-mail
  • Server settings
  • Server type: IMAP/POP/SMTP
  • Server name and address: mail.nux.cz
  • Port: 465
  • Security: SSL

Entire documentation can be found directly within CMS. To log in to the CMS, click the 'content' button in menu, and continue to 'documentation' section. All manuals can be found in menu on the left side.

You can contact us through the form, which can be found on the left site helpdesk, where you fill in the obligatory information we need. Usually they are: name, surname, e-mail, company/organisation and the message.
In case you want to send a file, you want to implement within website, click 'Select file' and select the file. If your demand requires our immediate attention, check the 'express requirement'.

The button should be on its place, however it can be hidden. If this situation happens, you can solve it with following approach:
Within the module for the file/image upload select settings (next to buttons 'hint' or 'refresh'). After clicking, check the field 'classic components' on the right side in the section 'File upload using:'.
At this moment, the button should appear correctly.

If images are uploading slowly, it may be happening due to image size or slow internet connection.
Images bigger than 1MB should be compressed for faster uploading and also for higher speed of the web. For good overal results, try to keep image size under 500kB.
The image compression can be made online for free using https://tinyjpg.com/. This online tool has a limit for image size at 5MB. If the image is bigger than this, it is most likely also big in pixel size.
In this case, initially resize the image at http://resizeimage.net/ to comfortably fit the majority of computer screens (max. 2880 x 1800px) and then do the compression.

The situation might happen due to web pages update, or old state being saved in browser cache.
Try to reload page bypassing the browser cache (key combination 'ctrl + F5'), or use different web browser. If the problem is persisting, contact as using helpdesk.

A webhosting is a term denoting just a website placement on a provider's server. It can be understood as renting some space for a website on foreign device without having to own it. Prices vary from several to thousands of czech crowns per month.
Nux s.r.o. is historically not affording just a webhosting alone, however we add up our own applications and their whole ecosystem.

Two-Factor Authentication (2FA) is a one-time password (OTP) providing higher level of security.

Nowadays, more than anytime in the past, it's crucial to maintain security of data and information, but in the same time, to keep them accessible (even remotely) only to authorised users.
In most companies, user access information are just their username and password. In contrary to standard approach, 2FA complements the user's username and password with one more level of security.
The advantage is, that the user does not have to remember the authorisation code, as it is automatically generated by an application in mobile phone (e.g. Google Authenticator). Each code is unique, valid for a short period of time and completely random, thus not guessable.
The result of using 2FA is much higher level of security of company sensitive data against various kinds of cyber attacks.

OTP thus solves following issues:

  • using static passwords.
  • repeating password already used elsewhere.
  • passwords containing user specific data (name, surname, date of birth, ...).
  • passwords derivatives like 'my_secret_password_1', 'new-password-2', ...
  • using weak password (use at least 8 alphanumeric characters)

As a responsible provider of complex services, with regards to the upcoming legislation data privacy change* (25.5.2018), we support this improvement and strongly recommend it. Nowadays, Nux s.r.o. is able to to take care of this feature at professional level. We do even have a personal interest on the customer data security since the data are very fragile and vulnerable and prone to misuse.

Have you read this far and come to decision, that your data deserve this sort of increased protection and activation of the 2FA OTP service? Do require 2FA activation as soon as possible. For a one-time payment, we will immediatelly arrange 2FA for you. For those of you, who have service contract, all additional expenses connected to 2FA will become part of the contract after the activation.

* General Data Protection Regulation (GDPR), intend to strengthen and unify data protection for all individuals within the European Union. It becomes enforceable from 25 May 2018.

SSL* certificate ensures smooth transition to the encrypted protocol HTTPS**. SSL certificates are keeping the data in between the server and browser secure. They are encrypting personal data, passwords, bank accounts, credit cards numbers and other information to be protected against unwanted on-line attackers.

To put it more simple cerfiticate, its public key and certificative authority are used to create trustworthy relationship between the end client and server, while all this being used for the transmitted data encryption in the same time.

What to you gain by activation?

  • At least you get no warning from the browser telling you your sites are not secured (see the picture).
  • SSL certifikát
    SSL certifikát
  • Next, you gain plus points in search engine optimization. Some time ago the Google company announced, they are monitoring the SSL occurences, and rate it as a positive SEO factor.
  • Last but not least, you will be satisfied knowing the data flowing through your website are kept safe.

How it is done?
Just let us know when you are interested and we will gladly arrange the certificate for you. The insignificant monthly fee rise will be a part of a webhosting service contract.

* SSL - Secure Sockets Layer is a protocol, a layer of between transport (e.g. TCP/IP) and application layer (e.g. HTTP), which provide communication security over a computer network.
** HTTPS - Hypertext Transfer Protocol Secure is a protocol providing encrypted communication in a computer network.

Yes, there is a possibility of a remote desktop connection using the TeamViewer. The software can be downloaded from the address www.teamviewer.com and subsequently install on a computer. As soon as the software is installed, we will need following credentials: "ID" and "password", which are required to log in.

After this, we can help you solve the problem. We kindly ask you to use this approach only when necessary.

Guide - teamviewer 1
How to proceed?

A small dictionary of special terms and abbreviations.

B2B, B2C

(Business to Business, Business to Customer) is abbreviation for business relations. Firstly, B2B indicates the relationship between the producer and dealer. B2B approach is not working for end customers, or consumers. Secondly, B2C represents a relationship between the dealer and consumer.


In your browser, there is a place for storing the content of webpages. There is no need to download a website, which content is not changing regularly from the server. Thus, when you visit the site again, you are served the site you have saved in your browser. The page loading time is then significantly shorter. It is posible to disable cache in your browser.


(Content Management System) stands for the system to administer the content. It is usually in the form of web interface, which allows you to control your websites. An example of a such system can be a redaction system of internet magazine, which publish articles.
Our Nux CMS is far mor complex and is able to administer more fields of internet portal as e.g. e-shop, photo gallery, survey, etc.


(Cascading Style Sheet) - a language used to format the document written in a markup language. With CSS, the web designer can create visually appealing webpages for either web or mobile applications.


A small amount of data, that websites save in your computer to "remember" that you have visited the site already. Same as with cache, cookies can be disabled in the browser.


Activity when a copywriter creates articles that attract new, potential clients.


Platform that various animations, presentations and games are made in.


Platform, which enables users on various operating systems to use same tools (e.g. application Sejmi.cz)


(Search Engine Optimization) - what it really means, is that your sites will be edited in such way to suit searching engines. The aim of this action is to move the hits to top positions in search engines. Visit our company blog for more info about SEO.


Usable sites are sites that are easy to navigate, to do some task (e.g. send contact form) without the hassle. To learn more, visit our blog.


Accessible sites are such sites, that can be visited on a notebook, tablet, phone and site is still functional and running smooth. A word handicap is also connected with the term accessibility. It means that every user, even handicaped, should have access to your sites through their special devices (tactile line for visually impared).


(Rich Site Summary) - file enabling quick article and news sharing between the server and user.


(What You See Is What You Get) - type of editor (not just) websites, in which you can alter the document and see the result right away. MS Word is one of them.


XML (eXtensible Markup Language) is a general markup language used for the data exchange between applications.

URL address

Uniform Resource Locator is a reference to a web resource specifying its location and protocol used for retrieving it.

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