Mikrotik - Reset To Factory Default Settings

If you messed up with the configuration on your MikroTik routers or RouterOS devices, which you cannot login to the router to manage it any more, you can reset the router to its factory default settings to gain back the access. The administrator account can also be reset with this way.

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Linux - iptables tabela mangle

http://www.purainfo.com.br/linux/iptables-tabela-mangle/

https://pt.wikibooks.org/wiki/Guia_do_Linux/Avan%C3%A7ado/Firewall_iptables/A_tabela_mangle

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Mikrotik - RB 850GX2

Descrição Resumida

O RB850Gx2 é um cinco porta Gigabit Ethernet do roteador. Comparando com o RB450G, o RB850Gx2 é muito mais rápido, com um CPU dual core, mas ainda mantém o mesmo formato, e vai caber nos mesmos gabinetes.
O dispositivo é alimentado por uma CPU 533 MHz P1023 PPC, e também inclui um monitor de sensor de temperatura e de tensão.

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Ubuntu - Configurando a data e hora pelo terminal

A informação de qual timezone deve ser usado pelo sistema fica em /etc/timezone, então para editar essa informação digite no terminal:
sudo vi /etc/timezone

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Ubiquiti - instalando o controller na Amazon AWS

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Mikrotik - SNMP Counter Users Hotspot

Pesquisando achei estes OID, percebi que a Mikrotik não dá a devida atenção para o gerenciamento dos equipamentos principalmente quando se trata de gerenciamento SNMP. No site deles a informação está bastante desatualizada.

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Meraki - External Captive Portal e Radius Server

Captive portal, splash pages and externally hosted RADIUS Server

Many customers are requesting Tanaza to support "Captive Portal". We understood that there is definitely a need to clarify what Captive Portal capability is and how it is implemented in a cloud managed Wi-Fi Network.

We think that the best article that can clarify the relationship between hardware, cloud infrastructure, Radius server, captive portal capability, splash pages, accounting and client management comes from... Meraki! 

So... here it is. Enjoy the precision of each single word of this article.

* * *

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Meraki - Custom Splash Page Configuration

Configuring a Custom-Hosted Splash Page to work with the Meraki Cloud

Table of Contents

1. Configuration
   1. Configure Access Control
   2. Enabling a Custom-Hosted Splash page on the Meraki Cloud
2. PHP Scripting – Explanation and Theory
   1. Click-through based splash page
   2. Sign-on based splash page
3. Forcing a User Back to the Splash Page

Most of Meraki's customers who need a captive portal (UAM) authentication system on their wireless networks use the customizable splash pages that are hosted by Meraki's cloud and configured in Meraki Dashboard.

However some network administrators may prefer to host a captive portal page on their own servers, a feature we refer to as EXCAP. This document describes how to get started plus describes the interface between the captive portal server and the Meraki cloud controller in both click-through and sign-on cases.

Note: This feature is for advanced users and will require the ability to parse GET parameters in order to build a grant or login URL. Knowledge of only HTML is not sufficient, you will also be required to have server-side scripting enabled.

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