---
title: 'Guest Network'
url: 'https://www.ondrejsramek.cz/en/blog/sit-pro-hosty'
markdown: 'https://www.ondrejsramek.cz/en/blog/sit-pro-hosty.md'
lang: en
date: '2020-07-04'
description: "Why having a guest network is a good idea When someone visits and wants to get online, what do you do? Give them your password? No, you shouldn't. Why? You might be using the same password elsewhere, you risk a MitM (Man-in-the-middle) attack, you don't know who else the password will be shared wit…"
taxonomy:
  category:
    - 'informační technologie'
    - IT
  tag:
    - bezpečnost
    - security
    - wifi
    - ubiquiti
  '':
    - ''
  archives_year:
    - '2020'
---

# Why having a guest network is a good idea

When someone visits and wants to get online, what do you do? Give them your password? No, you shouldn't. Why?

You might be using the same password elsewhere, you risk a MitM (Man-in-the-middle) attack, you don't know who else the password will be shared with, and I could go on. The solution? Set up a guest network. Fortunately even standard access points now have this feature — look for **Síť pro hosty** or **Guest Network**.

The ideal setup isolates guests in a **separate** VLAN with its own **DNS** (to block access to malware, P2P, and similar harmful sites — because you're responsible for what a connected person does). The approach that works well for me is generating single-use codes (valid for eight hours). The user enters the code in a Captive portal and they're connected. Simple and effective access control.

 [ Previous Post](https://www.ondrejsramek.cz/en/blog/vojak-v-zaloze) [Next Post ](https://www.ondrejsramek.cz/en/blog/kurzy-od-elastic) 

#### Other Related Posts:

 [  bezpečnost  ](https://www.ondrejsramek.cz/en/blog/tag:bezpe%C4%8Dnost#blog_list) 

###  Internet Security Talk 

[Internet Security Talk](https://www.ondrejsramek.cz/en/blog/bezpecne-online)

# In my hometown

Just as the internet changes every day, online security has to keep up. Below you'll find a few links to useful resources on internet security and privacy.

### Current security news

The [Security Roundup](https://www.root.cz/serialy/postrehy-z-bezpecnosti/) series, published every Monday on Root

News from the national team [CSIRT.CZ](https://www.csirt.cz/news/security/)...

 1st Feb 2020 

 [ ![Elastic Courses](https://www.ondrejsramek.cz/user/pages/05.blog/42.kurzy-od-elastic/Screenshot%202020-07-04%20at%2022.52.26.png) ](https://www.ondrejsramek.cz/en/blog/kurzy-od-elastic) [  ELK  ](https://www.ondrejsramek.cz/en/blog/tag:ELK#blog_list) [  Kibana  ](https://www.ondrejsramek.cz/en/blog/tag:Kibana#blog_list) [  elastic  ](https://www.ondrejsramek.cz/en/blog/tag:elastic#blog_list) [  ML  ](https://www.ondrejsramek.cz/en/blog/tag:ML#blog_list) [  Endgame  ](https://www.ondrejsramek.cz/en/blog/tag:Endgame#blog_list) 

###  Elastic Courses 

[Elastic Courses](https://www.ondrejsramek.cz/en/blog/kurzy-od-elastic)

# Elasticsearch, Logstash, Kibana — and Filebeat and Endgame too

**Elastic** offers a lot of training, some of it free. A while back I completed [Fundamentals of Securing Elasticsearch](https://www.elastic.co/training/fundamentals-of-securing-elasticsearch), a useful course on securing communication between Elasticsearch hosts. I was curious how far Kibana had come and wha...

 5th Jul 2020 

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---

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