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Month: January 2019

First time setup of Raspberry Pi 3 Model B + (from purchase to activation)

■ Introduction It is a summary from Raspberry Pi 3 Model B + (hereinafter referred to as “Raspai”) until OS startup after purchasing. In addition, I will perform internet browsing using wifi, using wireless mouse with Bluetooth. ■ Implementation Flow Preparation 1. Preparation of Raspberry and peripheral equipment Preparation 2. Connection with Raspberry Preparation 3. Place OS data on the SD card Task 1. Power ON Task 2. OS Setup ① Language selection ② OS […]

iptables Specify multiple –dport, –sport

  ■ Show rule details

■ Specify multiple ports

■ Specify port range

* –Dport and –sport can not be specified at the same time.

[Polite explanation] How to use Linux firewall iptables

There are many things you would like to set up a firewall on Linux, too.Rather, because it is used as a server in a company, it is a place I want to be more careful about than a personal computer.This page tells about iptables to set up firewall on Linux.  table of contents[hide] 1What is a firewall? 2What is iptables? 3iptables setting confirmation and explanation 3.1Chain 3.2Each item 3.3ALL? 3.4Adaptation order of iptables FourHow to […]

Gmail API PHP Manual 1

  table of contents[close up] 1Gmail API overview 2Install google-api-php-client 3Generation of client information (object) FourGoogle_Service_Gmail class 4.1Member variable (property) FiveGoogle_Service_Gmail_Message class 5.1Getter / setter list 6Source Code Sample Gmail API overview Main usage of API for gmail provided by google. There are various arrangements, such as configuring in the google admin console and acquiring the client library when actually using it, but here we focus mainly on how to use the API. There is […]

Initial value of javascript function in IE11

  Initial value of javascript function in IE   2016/07/11 A certain JavaScript function caused chrome and firefox to work normally but only IE 11 did not move. When I checked the console from the developer tool with the F12 key, it says “There is no ‘)’” and when I moved the function, “‘function name’ is not defined” was displayed.   Symptom Suppose you move the test_func function on tagcl from a tag link. The […]

Cross-compile the kernel for Raspberry Pi Zero and create a driver module

I want to make Raspberry Pi Zero participate in a 5 GHz wireless LAN, but with Jessie released on 2015/11/21, the on-hand Wifi adapterGW-450SCould not be used. Drivers in github (https://github.com/gnab/rtl8812au) Seems to need to be compiled as a kernel module. In this paper, I would like to introduce the procedure to cross-compile the kernel for Raspberry Pi Zero on another machine and the procedure to install the external driver as a kernel module using […]

Setting up Raspberry Pi Zero (W)

Raspberry Pi Zero (PiZero) domestic sales began on 2017/2 and PiZero W is finally sold to 2017/7/18, so it was updated after a long time. We will introduce the setup method with the goal of being able to perform headless operation by setting the state to remote login just by turning on the power supply. The setup method by simple USB connection (USB On-The-Go, hereinafter referred to as USB OTG) is described in the first […]

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