Herong's Tutorial Examples

Free Chinese Calendar 2026 - Year of the Horse
Want to know when is the 2026 Chinese New Year day? Look for free Chinese calendars for 2026? Chinese New Year Date for Year 2026 ⇒ Free Chinese Calendar 2027 - Year of the Goat ⇐ Free Chinese Calendar 2025 - Year of the Snake ⇑ Chinese New Year Dates in 2021 to 2030 ⇑⇑ Free Chinese Calendars 2026-02-17, ≈151🔥, 1💬

💬 2026-02-17 Mariah Carey: Thanks

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Install vsftpd on CentOS
This section provides a tutorial example on how to install, enable and start vsftpd (Very Secure FTP Daemon) on CentOS systems. 2024-01-01, ∼272🔥, 0💬

"last/lastb" - Review Login History
This section provides a quick introduction of the 'last' and 'lastb' commands, which allows you to review login history and login attempts. 2023-12-28, ∼210🔥, 0💬

Checking Variable Values in a Debugging Session
This section provides a tutorial example on how to check values of local variables in a debugging session. 2023-12-28, ∼187🔥, 1💬

💬 2023-12-28 Lolipop: /* * nonsence */

SSH Protocol and ssh/scp Commands
This chapter provides introductions and tutorial notes on SSH (Secure SHell) protocol and 'ssh/scp' commands. Topics include SSH connection steps; user password and public key authentication methods; SSH server configuration settings; 'ssh' for remote login sessions; 'scp' for copying remote files. 2023-12-26, ∼236🔥, 0💬

Free Chinese Calendar 2038 - Year of the Horse
Want to know when is the 2038 Chinese New Year day? Look for free Chinese calendars for 2038? Chinese New Year Date for Year 2038 ⇒ Free Chinese Calendar 2039 - Year of the Goat ⇐ Free Chinese Calendar 2037 - Year of the Snake ⇑ Free Chinese Calendars: 2031 - 2040 ⇑⇑ Free Chinese Calendars 2023-12-26, ∼9743🔥, 3💬

💬 2023-12-26 Herong: Xu, you’re most welcome!

💬 2023-12-18 L Xu: Thank you so much for sharing the beautiful Chinese calendars.

Ruby Driver 1.0 for Apache Cassandra Documentation
'DumpKey.java - Dumping Private Keys Out of keystore' tutorial was cited in a datastax.com Ruby documentation in 2014. 2023-12-26, ∼178🔥, 0💬

Installing Apache HTTP Server 2.2.25 on Windows
This section describes how to install Apache 2.2.25 binary distribution on Windows systems. 2023-12-22, ∼2040🔥, 4💬

💬 2016-06-19 Herong: that was an interesting test.

💬 2016-06-17 a: <?php echo 'hello'; ?>

Certificate in PEM Format
This section describes what is certificate PEM (Privacy Enhanced Mail) format - A format uses PEM idea to convert a certificate in DER format to a message of printable characters. The conversion uses the Base64 encoding. 2023-12-22, ≈17🔥, 8💬

💬 2023-11-13 shady: MIICUTCCAfugAwIBAgIBADANBgkqhkiG9w0B AQQFADBXMQswCQYDVQQGEwJDTjELMAkGA1UECBMCUE4xCzAJBgNVBAcTAkNOMQsw CQYDVQQKEwJPTjELMAkGA1UECxM...

💬 2023-10-16 subbarao: thanks

💬 2021-12-27 Azul: Why do you want me to write things like that?

💬 2020-02-23 Herong: Mark, if your certificate is signed by your own CA, put it on the Apache server together with the CA certificate to test. Other ...

💬 2020-02-17 mark scorfield: Hi i have a pem certificate x509 that i would like to share against my own certificate signing authority , what is the best way ...

(More comments ...)

PHP Script Source Code File Format
This section describes the PHP script source code file format - A text file with PHP code segments mixed into non-PHP text. The most common way to mix PHP codes is to use the PHP processing tag '?php'. 2023-12-18, ∼356🔥, 1💬

💬 2023-12-18 yas: Hello, Nice to meet you!

Viewing Components of Certificate Signing Request
This section provides a tutorial example on how to view different components of a CSR (Certificate Signing Request) for your public key with OpenSSL. 2023-12-17, ∼902🔥, 5💬

💬 2023-12-17 Herong: NB, Thanks for your comments. I see the value of signing the CSR now and will update the book accordingly.

💬 2023-12-15 NB: Your CSR does not contain your private key. It contains your public key and information about the domain(s) for which it should ...

💬 2014-03-29 Herong: Hi Mike, Sorry for the inconvenience. HTML tags are supported, but they are limited to admin users only to reduce spamming and h...

💬 2014-03-23 Mike: Wow. What a waste of time trying to make a legible comment post. No instructions on how to get a paragraph break, include a angl...

💬 2014-03-23 Mike: You made a note in "Viewing Components of Certificate Signing Request" where you said, "The request is signed with my private ke...

Using Visual Basic with Microsoft Access
This section provides tutorial example on how to add a Visual Basic code in Microsoft Access database to be executed as a macro on database tables. 2023-12-16, ∼6287🔥, 11💬

💬 2023-12-16 v: Thank you!

💬 2022-02-27 bob: this didnt help

💬 2021-10-27 fahis: lets go

💬 2018-08-11 Herong: trina, I will make corrections. Thanks for the comment.

💬 2018-08-11 trina: Why spreading misinformation? Pages like this are confusing for new users, with half-facts and limited instruction. First: Acces...

(More comments ...)

D800: High Surrogates
This section provides a quick summary of the Unicode code point block: 'High Surrogates', which contains 896 code points to represent High Surrogates used in the UTF-16 encoding 2023-12-16, ∼100🔥, 1💬

RDKit: Open-Source Cheminformatics Software
This chapter provides introductions and tutorial examples on RDKit, an open-source cheminformatics software. Topics include installing options; install RDKit Python library with Anaconda; trying to find RDKit binary package for CentOS systems; building RDKit from source code; testing RDKit C++ API; ... 2023-12-13, ∼571🔥, 1💬

💬 2023-12-13 Himani shivhare: Can you help me? In preparing spectral data of organosilen?

Free Chinese Calendar 2023 - Year of the Rabbit
Want to know when is the 2023 Chinese New Year day? Look for free Chinese calendars for 2023? Chinese New Year Date for Year 2023 ⇒ Free Chinese Calendar 2024 - Year of the Dragon ⇐ Free Chinese Calendar 2022 - Year of the Tiger ⇑ Chinese New Year Dates in 2021 to 2030 ⇑⇑ Free Chinese Calendars 2023-12-13, ≈295🔥, 8💬

💬 2023-12-13 Daniel Xu: thank you for sharing

💬 2023-12-13 Daniel Xu: thank you for your service

💬 2023-01-25 Joanne Robertson: I'm grateful for this generous gift and you send in return, good health, good wealth, long life. I can imagine all the delicious...

💬 2023-01-25 Joanne Robertson: This is amazing for me, many years I've missed out on Chinese New Year Calendar. My grandpa was Chinese gardener Roslyn Rd Mt We...

💬 2023-01-12 ShengLi: Si nian kuai le!!!

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"reg.exe" - Query Registry Keys and Values
This section provides a tutorial example on how to query registry keys and values with the 'query' command of the 'reg.exe' program. 2023-12-12, ∼358🔥, 1💬

💬 2023-12-12 JOGA: hi, good job how i del firefox, unistall in appdata. FOR /F "skip=2 tokens=2,*" %%A IN ('reg.exe query "HKEY_CURRENT_USER\Softwa...

Encrypting RSA Keys
This section provides a tutorial example on how to store RSA keys encrypted with password protection. 2023-12-12, ∼612🔥, 1💬

EUC-JP Encoding
This section provides a quick introduction of EUC-JP encoding, which maps a JIS X0208 character to a 2-byte sequence by adding 128 (0x80) to both bytes of the character's code value. 2023-12-11, ∼1387🔥, 3💬

💬 2023-12-11 hello: <h1>hello%lt;/h1>

💬 2021-05-31 greatman: Great!

rpc/encoded Example - Get Exchange Rate
This section provides a tutorial example on writing a WSDL 1.1 example that uses SOAP 1.2 over HTTP with rpc/encoded as the message style and the encoding option. 2023-12-11, ∼708🔥, 1💬

What Is Lorentz Factor
This section introduces Lorentz Factor, which is the factor used in the time dilation and other formulas in special relativity. 2023-12-10, ∼7949🔥, 7💬

💬 2023-08-03 Victor: You switched which time is proper time and which is dilated time. T' should be the elapsed time of the person at rest.

💬 2022-04-20 Tom: Thankd

💬 2019-08-29 Carl Burrnett: This was immensely helpful in my pursuit of trying to understand theoretical physics.

💬 2017-09-24 Shuvojit khan: There is anothere equation ΔE=PΔT

💬 2017-04-30 Abhishek Dogra: Thanks

Ethereum Tutorials - Herong's Tutorial Examples
This book is a collection of tutorial examples on Ethereum and blockchain. Topics include include: What is Ethereum; What is blockchain; Ethereum market value; What is Go Ethereum (Geth); Running a private Ethereum network with Geth; What is Ethereum Mist wallet; What is MetaMask wallet; Ethereum mi... 2023-12-06, ∼6668🔥, 5💬

💬 2022-07-10 Lori: Thanks for such a good book. It helps me a lot!

💬 2022-06-22 vinay: very good and clear

💬 2018-05-11 meizumx4pkwn: tanxs so much Doc..request to share this to myFam n Frenz..

💬 2018-03-11 Ed: Thanks!

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2023-12-06, ∼692🔥, 2💬

💬 2023-12-06 Herong: Devang, can you send me your order information to me at herong_yang@yahoo.com? Thanks.

💬 2023-12-05 Devang: I purchased the book from amazon a d sent the mail with order details but did not receive book in pdf format. Could you please c...

UTF-16, UTF-16BE and UTF-16LE Encodings
This chapter provides notes and tutorial examples on UTF-16, UTF-16BE and UTF-16LE encodings. Topics including encoding and decoding logics of UTF-16, UTF-16BE and UTF-16LE encodings; introduction of surrogate pairs; explanation of the use of BOM (Byte Order Mark). 2023-12-05, ≈19🔥, 14💬

💬 2023-12-05 g: 21 53 93 68 87 65 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 20 00 31 00 30 00 31 00 32 00 30 00 30 00 30...

💬 2023-11-30 4654: 0055 002b 0031 0031 0031 0041 0045

💬 2023-05-21 Rt: OX_+'(Ξ6 R Kf ò:eV£ΘWLY2rX%ÄùdÖ4fdΩsΠMßΔ7b¡_¥ì Ψ Æ=+SFΦ+ELQ*c ò!0¿D

💬 2021-07-20 abraham: thankyou

💬 2019-08-09 asas: Haga contacto con su administrador del sistema si desea obtener más información

(More comments ...)

javax.swing.JTextField and Related Classes
This section describes the javax.swing.JTextField class, the javax.swing.text.PlainDocument class, and the javax.swing.event.DocumentList enerclass. 2023-11-29, ∼332🔥, 1💬

💬 2023-11-29 ZS: DSZA

"obabel -L formats" - List of File Formats Supported
This section provides a list of molecule file formats supported by Open Babel obtained by the 'obabel -L formats' command. 2023-11-28, ∼454🔥, 2💬

💬 2023-11-28 Herong: sh, the error message indicates that Open Babel is not able to read the input file torus.mop as a MOPAC Cartesian file. Here is ...

💬 2023-11-26 sh: Hi , First thanks second I tried obabel torus.mop -o orcainp tor.orcainp but is says "Invalid format in geometry specification"

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