After following, you can keep track of his dynamic information in a timely manner
TobuildaLinuxhomemediaserver,chooseasuitabledistrolikeUbuntuServerorOpenMediaVault;setupstoragebyattachingandformattingdrives,mountingthemvia/etc/fstab,andenablingnetworksharingusingSambaorNFS;installamediastreamingserversuchasPlex,Jellyfin,orEmby—in
Aug 01, 2025 am 05:40 AM
TomanageLinuxserviceseffectively,usesystemctlwithsystemd.1.Startaserviceimmediatelywithsudosystemctlstartnginx.service.2.Stopitwithsudosystemctlstopnginx.service.3.Restartusingsudosystemctlrestartnginx.service.4.Reloadconfigurationwithoutrestartviasu
Aug 01, 2025 am 05:39 AM
The combination of Turborepo and pnpm is the preferred solution for modern JavaScript and TypeScript monolithic warehouses, because it provides quick installation, reliable dependency resolution, shared cache, parallel task execution and excellent tool support; first initialize the project and create pnpm-workspace.yaml to define the workspace structure, then install Turborepo as development dependency, then configure turbo.json to define the build pipeline, then set up an independent package.json for each package and use pnpm's workspace protocol to reference the local package. Finally, run the build, test and development tasks through the pnpmturbo command. It is also recommended to enable pnpm's
Aug 01, 2025 am 05:37 AM
Singleton mode is suitable for scenarios where globally unique instances are needed, such as configuration management, log services, cache layer and simple state management; 2. Singletons can be implemented through IIFE or ES6 modules in JavaScript, which naturally have singleton characteristics due to module cache; 3. Avoid using singletons for simple global convenience, because it is easy to lead to tight coupling, hidden dependencies, testing difficulties and violation of single responsibility principles; 4. Prioritize clearer and more measurable alternatives such as stateless tool functions, dependency injection or ES6 module export; 5. Only use singletons when sharing state or coordinated behavior is really needed, rather than just to centrally store data, global state is a global risk.
Aug 01, 2025 am 05:35 AM
To perform performance analysis of Go code in the container, you must first enable pprof and expose the port, and then collect data through gotoolpprof. The specific steps are: 1. Import the net/http/pprof package in the Go application and start the HTTP server to expose the debugging interface; 2. Open the 6060 port through the EXPOSE and -p parameters in the container configuration, or use port-forward in Kubernetes; 3. Use gotoolpprof http://localhost:6060/debug/pprof/profile and other commands on the host to obtain performance data such as CPU, heap memory or goroutine; 4. Optionally,
Aug 01, 2025 am 05:31 AM
JWTauthenticationinGoisimplementedbygeneratingsignedtokensuponlogin,validatingthemviamiddleware,andfollowingsecuritybestpractices.1.Usethegolang-jwt/jwtlibrarytohandletokencreationandparsing.2.Generatetokenswithsecureclaimslikeexpandiataftersuccessfu
Aug 01, 2025 am 05:28 AM
Mavenisidealforstandardized,enterpriseenvironmentswithitsXML-based,convention-over-configurationapproach,while2.GradleexcelsinflexibilityandperformanceusingGroovyorKotlinDSL,makingitbetterforcomplex,large-scale,orAndroidprojects,3.bothsupportrobustde
Aug 01, 2025 am 05:25 AM
CodesplittingimprovesJavaScriptapplicationperformancebyreducinginitialbundlesize;itworksbysplittingcodeintosmallerchunksloadedondemand,leadingtofasterinitialload,bettercaching,andimproveduserexperience.Thethreemaintypesare:1.Route-BasedSplitting–load
Aug 01, 2025 am 05:18 AM
1. When designing joint indexes, fields with high equal value matching and distinction should be placed in front of the field, and after the range query field should be placed; 2. Use overlay indexes to avoid table back operations and reduce I/O overhead; 3. Sorting and grouping should ensure that the index order and direction are consistent to avoid filesort; 4. Regularly clean useless indexes and avoid duplicate indexes, and reasonably evaluate the comprehensive impact of indexes on query and writing. For complex query scenarios, the index structure should be optimized in combination with execution plan analysis, rather than blindly adding indexes.
Aug 01, 2025 am 05:18 AM
SQL security vulnerabilities mainly include SQL injection, unsafe configuration, improper permission management and missing logs. The prevention measures are: use parameterized query, strict input verification, and minimum permission principles; restrict access to IP, modify default accounts, and regularly update versions; allocate permissions for independent accounts, manage by role, and regularly audit permissions; enable audit logs, centralized storage, and set alarms.
Aug 01, 2025 am 05:17 AM
Choosing the right garbage collector and configuring it properly is the key to optimizing Java application performance. First, select the GC type according to application needs: SerialGC is used for small memory applications, ParallelGC is used for high throughput scenarios, G1GC is used for large memory and controllable pauses, and ZGC is used for ultra-low latency requirements (such as financial transactions). 1. Set the heap size reasonably to avoid being too large or too small. It is recommended that -Xms and -Xmx are equal to -Xmx to prevent dynamic expansion; 2. For G1GC, you can set the target pause time through -XX:MaxGCPauseMillis, adjust -XX:G1HeapRegionSize to deal with large objects, and use -XX:InitiatingHea
Aug 01, 2025 am 05:12 AM
MySQLCluster is more suitable for high concurrency and low latency scenarios, and uses a distributed architecture to support data sharding and fast failover; GroupReplication emphasizes data consistency, which is suitable for scenarios with high consistency requirements, and realizes multi-node synchronous replication based on Paxos. 1.MySQLCluster adopts shared-nothing architecture, supports automatic sharding and online expansion, which is suitable for telecommunications and real-time billing systems; 2. Each node of GroupReplication saves complete data, guarantees consistency through majority consensus, and is suitable for financial transaction systems; 3.Customization is checked before submission, and quickly selects the master when a failure is made, Clust
Aug 01, 2025 am 05:09 AM
VirtualthreadsinJava—introducedaspartofProjectLoom—areagame-changerforwritinghigh-throughput,concurrentapplicationswithouttheusualcomplexityofasyncprogrammingorthreadpooling.Ifyou’veeverstruggledwithblockingI/Ooperationss
Aug 01, 2025 am 05:03 AM
Using while and fgets() can efficiently process large files because this method reads line by line to avoid memory overflow; 1. Open the file and check whether the handle is valid; 2. Use while loops to combine fgets() to read line by line; 3. Process each line of data, such as filtering, searching or conversion; 4. Use trim() to remove whitespace characters; 5. Close the file handle in time; 6. Customize the buffer size to optimize performance; compared with file() loading the entire file at one time, this method has low memory usage, stable performance, and supports super-large file processing. It is suitable for log analysis, data migration and other scenarios. It is a recommended way to safely process large files.
Aug 01, 2025 am 05:02 AM
NextAuth.js is the authentication library of Next.js, which supports OAuth, email password, JWT, etc.; 2. After installation, configure the provider and key in pages/api/auth/[...nextauth].js; 3. Use SessionProvider to wrap the application and use useSession, signIn, signOut to manage the status; 4. Use getSession or getServerSession to protect pages and API routes; 5. You can add Credentials providers to realize mailbox password login and cooperate with JWT policy; 6. You can customize the login page and expand user information through callbacks; NextA
Aug 01, 2025 am 05:00 AM
MemoryleaksinNode.jsarecausedbyaccidentalglobalvariables,unclosedeventlisteners,closuresretainingobjects,unboundedcaching,andtimersholdingreferences.2.Monitormemoryusingprocess.memoryUsage()ortoolslikepm2monittodetectcontinuousheapgrowth.3.Generatehe
Aug 01, 2025 am 04:59 AM
Trees and graphs can be implemented in JavaScript through objects and references; 2. Tree structures such as TreeNode class support addChild, removeChild and DFS traversal; 3. Binary search tree (BST) realizes efficient search, insertion and in-order traversal through small left and large left rules; 4. Graphs are represented by adjacency tables (Map Sets), supporting the addition of vertices and edges, BFS and DFS traversal; 5. Practical suggestions include using Set to avoid duplicate edges, iteratively avoid stack overflow, and selecting BFS or DFS according to the scene, which can ultimately be expanded to weighted graphs or algorithm applications.
Aug 01, 2025 am 04:55 AM
UseCSScustompropertiestodefinelightanddarkthemevariablesandapplythemacrossstyleswithsmoothtransitions.2.Detectuserpreferenceviaprefers-color-schememediaqueryandalignwithsystemsettings,optionallyoverridingwithdataattributes.3.Implementatogglebuttonwit
Aug 01, 2025 am 04:54 AM
Tooptimizethird-partyscriptsforbetterperformance,firstauditandprioritizescriptsbyidentifyingallthird-partyresourcesusingtoolslikeLighthouseorChromeDevTools,removingunnecessaryones,anduncoveringhiddenscriptchains.Second,loadscriptsasynchronouslywithas
Aug 01, 2025 am 04:54 AM
Async/Await syntax is simpler, the logic is clearer, and suitable for complex processes; 2. Async/Await's try/catch can achieve more refined error handling; 3. Async/Await is more intuitive and easy to read in conditional control and loops; 4. Parallel execution needs to be combined with Promise.all to avoid await serial blocking; 5. Async/Await debugging experience is better, supporting breakpoints and clear call stacks; 6. Async/Await needs to run in an environment that supports ES2017, and await must be used in async functions; it is recommended to use async/await first, which provides more elegant asynchronous programming based on Promise.
Aug 01, 2025 am 04:52 AM
WebGPU is a new web graphics and computing API that provides the underlying infrastructure for running machine learning inference in the browser by leveraging the parallel computing power of the GPU more efficiently. 1. WebGPU improves parallel computing efficiency, making ML core tasks such as matrix operations faster execution; 2. It provides a cross-platform unified execution environment to ensure consistency on different devices; 3. Reduces dependence on JavaScript, moves more logic to the GPU side, and reduces the burden on the main thread; 4. Currently, projects such as TensorFlow.js, ONNXRuntimeWeb and WASI-NN are exploring their applications; 5. Developers can learn the basics of WebGPU, pay attention to the progress of the framework, and try to open source.
Aug 01, 2025 am 04:50 AM
SSRrenderspagesoneveryrequestusinggetServerSideProps,idealfordynamic,personalizedcontentwithfreshdata;SSGgeneratespagesatbuildtimeusinggetStaticProps,perfectforstaticcontentlikeblogsanddocs;ISRcombinesbothbyregeneratingstaticpagesinthebackgroundwithr
Aug 01, 2025 am 04:49 AM
The key to improving Python numerical computing performance is its vectorized computing and efficient memory management. 1. Use NumPy array instead of Python lists to reduce memory usage and improve computing speed; 2. Make reasonable use of the broadcast mechanism so that arrays of different shapes can be directly computed to avoid explicit loops; 3. Avoid Python native loops, try to use vectorized operations to significantly improve execution efficiency; 4. Choose the appropriate data type (such as float32 instead of float64), save memory and speed up computing, and pay attention to accuracy issues. Following these principles can give full play to the advantages of NumPy in high-performance numerical calculations.
Aug 01, 2025 am 04:44 AM
Adapter mode is a structural design mode that allows incompatible interfaces to work together. It converts the interface of the class like a "translator", so that the old system connects with the new library without rewriting the logic. Applicable scenarios include reusing existing classes, unified subclass interfaces, encapsulating third-party APIs, etc. In the implementation, the target object is wrapped by creating an adapter class, calling its methods and converting the interface, such as adapting NewLogger to the OldLogger interface with LoggerAdapter. Unlike appearance mode, adapters focus on interface conversion, while appearance focuses on simplifying complex interfaces. Abuse should be avoided when using it and pay attention to clear naming.
Aug 01, 2025 am 04:43 AM
To improve VSCode skills, you can refer to the following resources: 1. The official documents provide structured guides from basic settings to advanced debugging; 2. YouTube channels such as TraversyMedia, Fireship and official channels provide practical tutorials; 3. Reddit and StackOverflow can learn other people's experience in solving practical problems; 4. Blogs such as CSS-Tricks, LogRocket and VSCodeTips communication provide in-depth skills and analysis of unusual functions.
Aug 01, 2025 am 04:42 AM
UseExt4fordesktopsorbasicserverswherestabilityandsimplicityarekey,asitismature,reliable,andwell-supportedbutlacksadvancedfeatureslikesnapshotsorchecksums.2.ChooseBtrfsforhomeservers,NAS,orcontainerenvironmentsneedingsnapshots,subvolumes,dataintegrity
Aug 01, 2025 am 04:42 AM
To effectively audit the security of SQL databases, the core is to systematically check permissions, configuration and access behavior through the framework. Common SQL database security audit frameworks include Microsoft SQLServerAudit, OracleDatabaseVault AuditVault, MySQLEnterpriseAudit and open source tools such as Lynis and SQLmap. Key points of audit include user permission management, login attempt recording, sensitive data access tracking, and change history. In actual deployment, we need to pay attention to problems such as excessive logs, performance impact, log storage policies and lack of centralized management platforms. It is recommended to enable event capture on demand, perform performance testing, encrypt archive logs and
Aug 01, 2025 am 04:40 AM
Records are used when the data is immutable, only used to carry data without complex behavior; 2. Classes are used when encapsulation, mutable state, inheritance or verification logic is required; 3. Avoid adding instance fields to records or destroying immutability; 4. Records are suitable for DTO and return value encapsulation, and classes are suitable for scenarios containing business logic or life cycle management; 5. If the object is only data aggregation, use records, and if it is a behavioral object, use classes.
Aug 01, 2025 am 04:40 AM
To control the expansion or collapse state of HTML elements, the key is to manipulate its open attribute. 1. It is a native HTML element used to create a foldable content block. It is closed by default. Add the open attribute to expand by default. 2. Get the elements through JavaScript and set details.open=true to expand, details.open=false to close, and use details.open=!details.open to switch states; 3. Common practice is to bind button click events to switch states; 4. Be careful not to judge the state with class or style, nor can you set open in inline styles; 5. It has good compatibility in modern browsers, but old browsers may
Aug 01, 2025 am 04:39 AM
The SSL certificate must be renewed or replaced in time after it expires to avoid security warnings affecting user access. To determine whether renewal or replacement is required, you can check the certificate status and expiration time in IIS. If it is close to expiration (usually 30 days in advance), it needs to be renewed. If it has expired or there are changes in the domain name or service provider, it needs to be replaced. The renewal operation includes finding the corresponding certificate in IIS and selecting "Renew", selecting to use the same key or generate a new key according to your needs, and submitting CA for review and downloading and installing. To replace a new certificate, you need to apply for a new certificate and import IIS, update the site binding configuration, and ensure that the domain name matches and the private key permissions are correct, and bring out the private key during migration. Other precautions include: self-signed certificates are not suitable for external services; pay attention to private key permissions when multiple servers are updated simultaneously;
Aug 01, 2025 am 04:38 AM
