phuongtailtranminh

    public String method(KeycloakAuthenticationToken token) {
        OidcKeycloakAccount account = token.getAccount();
        IDToken idToken = account.getKeycloakSecurityContext().getIdToken();
        return idToken.getOtherClaims().get("CUSTOM_FIELD")
    }

phuongtailtranminh

Problem: http://www.winhelponline.com/blog/cmd-here-windows-10-context-menu-add/
Copy the following lines to Notepad, and save it with a .REG extension, say cmdhere.reg. Double-click the file to apply the registry settings.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Directory\shell\cmdprompt]
@="@shell32.dll,-8506"
"Extended"=""
"NoWorkingDirectory"=""

phuongtailtranminh

1. Concepts:

System Integrity Protection (SIP)

"Apple has enabled a new default security oriented featured called System Integrity Protection, often called rootless, 
in Mac OS from versions 10.11 onward. The rootless feature is aimed at preventing Mac OS X compromise by malicious code, 
whether intentionally or accidentally, and essentially what SIP does is lock down specific system level locations in the file 
system while simultaneously preventing certain processes from attaching to system-level processes." 
- OSXDaily [http://osxdaily.com/2015/10/05/disable-rootless-system-integrity-protection-mac-os-x/]

phuongtailtranminh

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

phuongtailtranminh

First time build: 40m
Second time build: 6m

[BUILD FROM SOURCE USING DOCKER]
cd YOUR_CHE_REPOSITORY
docker run -it --rm --name build-che \
           -v "$HOME/.m2:/home/user/.m2" \
           -v "$PWD":/home/user/che-build \
           -w /home/user/che-build \
           eclipse/che-dev \

phuongtailtranminh

package com.viettel.integration.hub.echoserver.controller;

import java.io.IOException;
import java.util.Base64;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

phuongtailtranminh

<!DOCTYPE configuration>

<configuration>
    <contextName>test</contextName>
    <jmxConfigurator/>

    <appender name="gelf" class="biz.paluch.logging.gelf.logback.GelfLogbackAppender">
        <host>udp:localhost</host>
        <port>12201</port>
        <version>1.1</version>

phuongtailtranminh

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

phuongtailtranminh

Backup: sudo tar -cvpzf backup.tar.gz --exclude=/backup.tar.gz --exclude=/boot --one-file-system /
Restore: sudo tar -xvpzf /path/to/tar/file -C / --numeric-owner

phuongtailtranminh

  Network Interface Configurator.

  - View network settings of an ethernet adapter:
    ifconfig eth0

  - Display details of all interfaces, including disabled interfaces:
    ifconfig -a

  - Disable eth0 interface:
    ifconfig eth0 down