Course Introduction：This article examines the security concerns associated with executing SSH commands in PHP. It highlights the risks posed by using the shell_exec method and recommends using secure alternatives such as the phpseclib library. The article also discusses
2024-10-23 comment 0 888
Course Introduction：Updating OpenSSL in Python 2.7 with Homebrew on macOSPython utilizes the OpenSSL library for secure communication, but it may rely on the system's...
2024-10-27 comment 0 1164
Course Introduction：Java deserialization vulnerabilities are at high risk, especially when applications handle uncontrollable inputs. Unsafe deserialization refers to the use of ObjectInputStream to read external data, resulting in malicious code execution or denial of service. It is common in readObject() method, RMI communication, and cache tampering scenarios. To identify risks, you need to check whether you use readObject(), whether there are vulnerabilities in the dependency library, and whether the log configuration contains serialized content. Fix suggestions include: 1. Avoid deserialization of untrusted data; 2. Use JSON/XML to replace native serialization; 3. The input source is controllable and signature/encryption is added; 4. Enable the whitelisting mechanism to limit class loading; 5. Upgrade the dependency library to a secure version; 6. Close en
2025-07-16 comment 0 910
Course Introduction：OpenSSL, this open source secure communication library, provides encryption algorithms, protocols and tools for applications to ensure data security. To improve the performance of OpenSSL in Debian systems, you can try the following methods: Update the OpenSSL version: timely update to the latest stable version, which usually includes performance improvements and security patches. For example, the OpenSSL update for Debian12.8 fixes security issues such as buffer overflow and may also include performance optimizations. OpenSSL configuration optimization: Adjust openssl.cnf configuration files according to application needs, such as CipherString and SSL_CIPHER_LIST, and choose a more efficient encryption suite.
2025-04-12 comment 0 802
Course Introduction：OpenSSL, a powerful open source security toolkit, implements SSL and TLS protocols, and is the key to ensuring network secure communication. This article will guide you on how to use OpenSSL efficiently in Debian systems. 1. It is recommended to use Debian's package manager for installation. This is the most convenient way: sudoapt-getupdatesudoapt-getinstalllibssl-dev This command installs the OpenSSL development library and header files, which is convenient for subsequent compilation of programs that require OpenSSL. If you need a specific version or if there is no required version in the package manager, you need to compile and install it from the source code: wgethttp
2025-04-12 comment 0 933
Course Elementary 13819
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82353
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13173
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24624
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27483
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
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