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This book is a collection of notes and sample codes written by the author while he was learning Linux systems. Topics include using Cockpit Web portal for admin tasks; managing users and groups; managing files and directories; managing NTFS, CIFS, EXT4, LBA, LVM file systems; using network tools and security firewall; installing CentOS systems; using SELinux (Security-Enhanced Linux) system; DNF/YUM software package manager; SSH Server configuration and client tools; managing vsftpd - Very Secure FTP daemon; managing directory service with OpenLDAP; Updated in 2024 (Version v5.44) with email topics moved to 'Email Tutorials' book. For latest updates and free sample chapters, visit https://www.herongyang.com/Linux.
This MySQL tutorial book is a collection of notes and sample codes written by the author while he was learning MySQL himself, an ideal tutorial guide for beginners. Topics include introduction of Structured Query Language (SQL); installation of MySQL server on Windows, Linux, and macOS; using MySQL client program; accessing MySQL server from PHP, Java and Perl programs; SQL data types, literals, operations, expressions, and functions; Statements of Data Definition Language (DDL), Data Manipulation Language (DML), and Query Language; creating and using indexes; using window functions; stored procedures; transaction management; locks and deadlocks; InnoDB and other storage engines. Updated in 2023 (Version v4.46) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/MySQL.
This book is a collection of tutorial notes and sample codes written by the author while he was learning JVM GC (Garbage Collection) processes. Topics include Java Garbage Collectors, STW (Stop-The-World), Serial Collector, Parallel Collector, Concurrent Collector, G1 Collector, GC Algorithms, Generational GC, Regional GC, Heap Memory Management, Young/New Generation, Tenured/Old Generation, Object Reference, Eden Space, Survivor Spaces, Minor GC, Major GC, Full GC, Performance Tuning, Throughput/Latency Performance, Heap Footprint. Updated in 2024 (Version v1.12) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/Java-GC.
This Perl tutorial book is a collection of notes and sample codes written by the author while he was learning Perl language himself. Topics include introduction of ActivePerl; data types, variables and expressions; scalars, arrays, hash maps, and references; input/output and file systems; DBM files and MySQL access; socket communication; generating executables; XML::Simple and RPC:XML modules; LWP::UserAgent, HTTP::Request and SOAP::Lite modules; CGI, and IIS/Apache integrations. Updated in 2024 (Version v6.02) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/Perl.
This PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP himself. Topics include PHP script syntax; data types, variables, array, expressions, statements and functions; Web server integration; HTTP requests and controlling HTTP responses; sessions, cookies, and file uploads/downloads; MySQL database server access; files, directories, and ZIP archives; parsing HTML Documents; processing image files; SOAP extension; managing non-ASCII characters; classes and objects; using PHP on Windows, macOS and Linux; executing external programs on operating system. Updated in 2022 (Version v5.16) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/PHP.
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive/multiplicative notations; EC as Abelian groups; DLP (Discrete Logarithm Problem) and trapdoor function; Galois fields or finite fields with Additive/Multiplicative Abelian Group; Prime fields, binary fields, and polynomial fields; EC fields reduced with modular arithmetic; EC subgroup and base points; EC private key and public key pairs; ECDH (Elliptic Curve Diffie-Hellman) protocol; ECDSA (Elliptic Curve Digital Signature Algorithm); ECES (Elliptic Curve Encryption Scheme) protocol; Java tool/program to generate EC keys. Updated in 2024 (Version v1.03) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/EC-Cryptography.
This Unicode tutorial book is a collection of notes and sample codes written by the author while he was learning Unicode himself. Topics include Character Sets and Encodings; GB2312/GB18030 Character Set and Encodings; JIS X0208 Character Set and Encodings; Unicode Character Set; Basic Multilingual Plane (BMP); Unicode Transformation Formats (UTF); Surrogates and Supplementary Characters; Unicode Character Blocks; Python Support of Unicode Characters; Java Character Set and Encoding; Java Encoding Maps, Counts and Conversion. Updated in 2024 (Version v5.32) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/Unicode.
This MySQL tutorial book is a collection of notes and sample codes written by the author while he was learning MySQL himself, an ideal tutorial guide for beginners. Topics include introduction of Structured Query Language (SQL); installation of MySQL server on Windows, Linux, and macOS; using MySQL client program; accessing MySQL server from PHP, Java and Perl programs; SQL data types, literals, operations, expressions, and functions; Statements of Data Definition Language (DDL), Data Manipulation Language (DML), and Query Language; creating and using indexes; using window functions; stored procedures; transaction management; locks and deadlocks; InnoDB and other storage engines. Updated in 2023 (Version v4.46) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/MySQL.
This book is a collection of notes and sample codes written by the author while he was learning Android system. Topics include Installing of Android SDK on Windows, Creating and running Android emulators, Developing First Android Application - HelloAndroid, Creating Android Project with 'android' Command, Building, Installing and Running the Debug Binary Package, Inspecting Android Application Package (APK) Files, Using Android Debug Bridge (adb) Tool, Copying files from and to Android device, Understanding Android File Systems, Using Android Java class libraries, Using 'adb logcat' Command for Debugging. Updated in 2023 (Version v3.05) with ADB tutorials. For latest updates and free sample chapters, visit https://www.herongyang.com/Android.
This JDBC tutorial book is a collection of notes and sample codes written by the author while he was learning JDBC technology himself. Topics include installing JDK and Derby database server; using Derby JDBC driver; database connection URLs; introduction to Result Set; Meta Data, Prepared Statement, CLOB, and BLOB; connection pooling with DBCP and C3P0. Updated in 2024 (Version v3.13) with minor changes. For latest updates and free sample chapters, visit https://www.herongyang.com/JDBC.