development – ~ my tech diary ~

System Integrity Protection (SIP) in macOS

This is my note to not forget this – SIP in macOS. https://developer.apple.com/documentation/security/disabling-and-enabling-system-integrity-protection csrutil status helps to check the current machine status for it. We should boot macOS with recovery mode to change the config.More

CommonJS vs ESM: Namespace Handling Explained

When I updated https://github.com/appium/node-teen_process to ESM fully, I met an issue I hadn’t seen. Here is a note about the finding for my future note.More

[iOS] Using rvictl for Network Traffic Capture on iOS Devices

Apple publishes Recording a Packet Trace, which explains how to capture packets for macOS and iOS. With the rvictl and tcpdump The combination addressed on the page allows us to capture the network traffic that occurs on a connected iOS device. One note here is about rvictl. The page addresses the functionality as; iOS doesn’t…More

Read「Webブラウザセキュリティ」

I read “Web Browser Security” book. https://www.lambdanote.com/products/wbs The book explained well about Web browser security, including how to attach Web site. I knew of such security issues/security stuff, but not all. Some parts of the book reminded me of some essential security topics. I want to keep the book in my mind and return to…More

Read “Pythonの黒魔術”

I’ve written Python as work while I was new to Python before. My Python experience has been grown, so I got used to writing Python code. Meanwhile, motivation to improve my code made me dive into a bit deeper Python world. It could step my eye up in reading other persons’ code, reviewing them, making…More

[macOS] cfprefsd and defaults

I did not know the cfprefsd, but https://github.com/appium/appium-ios-simulator/pull/298 told me about it an around plist stuff. Below is the link I learned them. I usually used defaults command to control plist, but haven’t understood the background. The article gave me insights about it.More

[macOS] Moved to Zsh

I finally moved bash to zsh on my macOS. Below is what I did then. I hope my private dev env will work fine.. Add below lines to the top of zprofileMore

Read「Goならわかるシステムプログラミング」 – Golang

I read Goならわかるシステムプログラミング to catch up with Go in system layer. I do not have much experience in Go. Definitely I finished their tutorial, but have not experienced writing their code. Then, I needed to learn golang more to write code in production level. This book helped me to understand golang, especially network stuff, in…More

[Chrome] netlog viewer tool to see network easy

Another note about Chromedriver. Chronium project: https://chromium.googlesource.com The project has helpful tools like https://chromium.googlesource.com/catapult/+/master/netlog_viewer . https://dev.chromium.org/for-testers/providing-network-details is the project page. https://netlog-viewer.appspot.com/ How easy to capture network data via a browser by chrome://net-export … The export works on Android Chrome, too. (The scope is network on the browser though. We need to use external service like…More

[android] good reference of adb

This post is a note to me… http://adbcommand.com/ https://developer.android.com/studio/command-line/adbMore