Sunday, February 19, 2023
Friday, June 11, 2021
听音乐记诗词
鄧麗君 《但願人長久》
《水调歌头》苏轼
明月几时有，把酒问青天。
不知天上宫阙，今夕是何年？
我欲乘风归去，又恐琼楼玉宇，
高处不胜寒。
起舞弄清影，何似在人间！
转朱阁，低绮户，照无眠。
不应有恨，何事长向别时圆？
人有悲欢离合，月有阴晴圆缺，
此事古难全。
但愿人长久，千里共婵娟。
幾多愁 【虞美人】
虞美人
春花秋月何时了，往事知多少。小楼昨夜又东风，故国不堪回首月明中。
雕阑玉砌应犹在，只是朱颜改。问君能有几多愁，恰是一江春水向东流。
Saturday, May 1, 2021
Sunday, January 31, 2021
Authentication for Azure AD
1. #password hash synchronization (most simple)
*** Azure AD Connect synchronizes a hash, of the hash, of a user's password from an on-premises Active Directory instance to a cloud-based Azure AD instance.
*** You can use this feature to sign in to Azure AD services like Microsoft 365. You sign in to the service by using the same password you use to sign in to your on-premises Active Directory instance.
To use password hash synchronization in your environment, you need to:
-Install Azure AD Connect.
-Configure directory synchronization between your on-premises Active Directory instance and your Azure Active Directory instance.
-Enable password hash synchronization.
*** You can use this feature to sign in to Azure AD services like Microsoft 365. You sign in to the service by using the same password you use to sign in to your on-premises Active Directory instance.
To use password hash synchronization in your environment, you need to:
-Install Azure AD Connect.
-Configure directory synchronization between your on-premises Active Directory instance and your Azure Active Directory instance.
-Enable password hash synchronization.
## Password Hashing
**Hashing performs a one-way transformation on a password, turning the password into another String, called the hashed password. “One-way” means that it is practically impossible to go the other way - to turn the hashed password back into the original password.
2. ## Azure Active Directory Pass-through Authentication
**Azure Active Directory (Azure AD) Pass-through Authentication allows your users to sign in to both on-premises and cloud-based applications using the same passwords.
-When users sign in using Azure AD, this feature validates users' passwords directly against your on-premises Active Directory.
**-certain organizations wanting to enforce their on-premises Active Directory security and password policies, can choose to use Pass-through Authentication instead.
-Simply needs just a lightweight agent (makes only outbound connections) to be installed on-premises.
***-On-premises passwords are never stored in the cloud in any form.
-The communication between an agent and Azure AD is secured using certificate-based authentication. These certificates are automatically renewed every few months by Azure AD.
**Azure Active Directory (Azure AD) Pass-through Authentication allows your users to sign in to both on-premises and cloud-based applications using the same passwords.
-When users sign in using Azure AD, this feature validates users' passwords directly against your on-premises Active Directory.
**-certain organizations wanting to enforce their on-premises Active Directory security and password policies, can choose to use Pass-through Authentication instead.
-Simply needs just a lightweight agent (makes only outbound connections) to be installed on-premises.
***-On-premises passwords are never stored in the cloud in any form.
-The communication between an agent and Azure AD is secured using certificate-based authentication. These certificates are automatically renewed every few months by Azure AD.
**-Password Remains in On-Premise (Sync user ID only, not password).
3. ADFS
-Password Remains in On-Premise.
Azure AD can be the initial Azure AD managed domain. Azure AD can also be an on-premises Active Directory Domain Services that is federated with the Azure AD.
Azure Active Directory (AAD)
Azure Active Directory Domain Services (AADDS)
Active Directory (AD)
Tuesday, December 15, 2020
常用粤语广东话
常用粤语广东话
我（我） 你（你） 佢（他）
我哋（我们） 你哋（你们） 佢哋（他们）
人哋（人家） 呢度（这里） 嗰度（那里）
边度（哪里） 呢（这） 嗰（那）
咁样（这样、那样） 点解（为什么） 第日（改天）
第次（下次） 乜嘢（什么） 乜（什么）
起身（起床） 着（穿） 除（脱）
闩门（关门） 熄灯（关灯） 水喉（水龙头）
瞓觉（睡觉） 食（吃） 食晏（吃午餐）
饮（渴） 台（桌子）
中意（喜欢）
唔好（不好） 唔通（难道）
一、粤语日常用语
（普）现在是2点。（粤）衣家系两点。
（普）你在干什么？（粤）你系度做乜啊？
（普）你吃饭了没？（粤）你食左饭未啊？
（普）你叫什么名字？（粤）你叫咩名啊？
（普）谢谢！（粤）唔该！
（普）对不起/不好意思！（粤）对唔住/唔好意思！
（普）不好意思打扰你一下。（粤）唔好意思阻你一阵。
问路：
（普）麻烦一下，我想问海滨路怎么走？（粤）唔该我想问海滨路点去啊？
（普）我可以乘车去吗？（粤）我可唔可以坐车去啊？
（普）如果我步行要多久呢？（粤）如果我行路去要几耐啊？
见到朋友：
（普）你好！好久没见！还好吗？（粤）你好！好耐无见！过得点啊？
（普）我挺好的。你呢？（粤）我几好啊！你又过得点啊？
（普）一年没见，你变漂亮了啊！（粤）一年无见，你靓女左啊！
（普）这么久没见，你长高了/长大了（粤）甘耐无见，你高大左啊/大个左啊！
（普）什么时候有空我们喝两杯吧（粤）几时得闲出来饮两杯啊！
（普）我什么时候都有空（粤）我几时都得闲
（普）我最近比较忙（粤）我尼排比较忙
（普）你家电话是多少（粤）你屋企电话系几多啊？
（普）我赶时间，得先走了。迟点再联络（粤）我赶时间，要走先了，迟D再联系。
买东西：
（普）这个多少钱？（粤）呢个几多钱啊？
（普）这么贵啊！便宜点吧！（粤）咁贵？平少少啦！
（普）给我2斤。（粤）俾2斤我。
（普）我没有零钱，100块找得开吗？（粤）我无散纸，100蚊找唔找？
Sunday, November 29, 2020
The Difference Between Leopards, Panthers, Pumas, Jaguars & Cheetahs
Leopard 豹
Jaguar (爪画) 美洲虎Panther 豹
Pumas (cougar) 美洲狮
Cheetah (挤大; 挤大大挤小小) 猎豹
Saturday, October 10, 2020
Basic overview of computers
IP address
-Every computer has its own IP address (unique identifier).
-Analog: person's NRIC number
-For example: 74.125.24.103
Hostname
-The purpose of assigning hostname to IP address is to make them easier for people to remember.
-Example of hostname: www.google.com, GHSEP, Eagle
-Analog: Alice
Domain Name System (DNS)
-The Domain Name System (DNS) is the internet's version of the Yellow Pages.
-Is to find the IP address associated with hostname (e.g. Eagle maps to 192.168.1.88).
Dynamic Host Configuration Protocol (DHCP)
-A DHCP Server is a network server that automatically provides and assigns IP addresses, default gateways and other network parameters to client computers.
Firewall
-Allow you to block or allow certain types of network traffic for incoming & outgoing.
A ping is a signal sent to a host that requests a response (e.g. ping Eagle8).
-Every computer has its own IP address (unique identifier).
-Analog: person's NRIC number
-For example: 74.125.24.103
Hostname
-The purpose of assigning hostname to IP address is to make them easier for people to remember.
-Example of hostname: www.google.com, GHSEP, Eagle
-Analog: Alice
Domain Name System (DNS)
-The Domain Name System (DNS) is the internet's version of the Yellow Pages.
-Is to find the IP address associated with hostname (e.g. Eagle maps to 192.168.1.88).
Dynamic Host Configuration Protocol (DHCP)
-A DHCP Server is a network server that automatically provides and assigns IP addresses, default gateways and other network parameters to client computers.
Firewall
-Allow you to block or allow certain types of network traffic for incoming & outgoing.
A ping is a signal sent to a host that requests a response (e.g. ping Eagle8).
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