Linux – Managing WiFi with wpa_supplicant

wpa_supplicant is a WPA Supplicant for Linux, BSD, Mac OS X, and Windows with support for WPA and WPA2 (IEEE 802.11i / RSN). It is suitable for both desktop/laptop computers and embedded systems. Supplicant is the IEEE 802.1X/WPA component that is used in the client stations. Read More …

413 Request Entity Too Large and PHP Execution Time

It can be found on standalone Apache/Nginx/IIS web server or while proxy-based solutions when Nginx acts as a front end server for Apache at back end server. In this guide, we will see how to fix this error “413 request entity is too large” in Apache as well as in Nginx, Microsoft IIS , and definitely in PHP as well. Read More …

Considerations on Spam, Fake News and Opinion Spamming

Spam, in general, is quite common nowadays and we receive it in many forms on many modern media, like WhatsApp messages, e-mails, sometimes SMS, from social networks to which we are registered, etc.. Usually the Spam is quite easy to be identified paying a bit of attention to some aspects. Read More …

Direct Broadcast Address (DBA)

With directed broadcast, all recipients are always addressed within the target network. A combination of the number of the target network and the setting of all host bits to 1 produces the broadcast address in this case. If the destination is not located in its own (sub-) network, a router forwards the data packet. Read More …

Ubuntu – What is netplan?

Since Ubuntu 18.04 LTS has switched to Netplan for configuring network interfaces. Netplan is based on YAML based configuration system that makes configuration process very simple. Using netplan gives a central location to describe simple to complex networking configurations that function from Desktop to Server and from Cloud to IoT environments. Read More …