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- What are the vulnerabilities of Debian OpenSSL
- OpenSSL, as an open source library widely used in secure communications, provides encryption algorithms, keys and certificate management functions. However, there are some known security vulnerabilities in its historical version, some of which are extremely harmful. This article will focus on common vulnerabilities and response measures for OpenSSL in Debian systems. DebianOpenSSL known vulnerabilities: OpenSSL has experienced several serious vulnerabilities, such as: Heart Bleeding Vulnerability (CVE-2014-0160): This vulnerability affects OpenSSL 1.0.1 to 1.0.1f and 1.0.2 to 1.0.2 beta versions. An attacker can use this vulnerability to unauthorized read sensitive information on the server, including encryption keys, etc.
- Golang 1085 2025-04-02 07:30:01
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- PostgreSQL monitoring method under Debian
- This article introduces a variety of methods and tools to monitor PostgreSQL databases under the Debian system, helping you to fully grasp database performance monitoring. 1. Use PostgreSQL to build-in monitoring view PostgreSQL itself provides multiple views for monitoring database activities: pg_stat_activity: displays database activities in real time, including connections, queries, transactions and other information. pg_stat_replication: Monitors replication status, especially suitable for stream replication clusters. pg_stat_database: Provides database statistics, such as database size, transaction commit/rollback times and other key indicators. 2. Use log analysis tool pgBadg
- Golang 672 2025-04-02 07:27:01
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- What to do if Tigervnc connection fails on Debian
- In Debian system, if the TigervNC connection fails, please follow the following steps to troubleshoot: 1. Check the status of the VNC server First, confirm whether the VNC server is up and running. Use the command ps-ef|grepvnc to view the VNC server process. 2. To confirm the port number, please check whether the port number you are using is correct. TigervNC uses TCP port 5900 n by default (n is the monitor number, for example: display 1 corresponds to port 5901). 3. Firewall settings If a firewall (such as ufw) is enabled, make sure that the VNC port is allowed to pass. Use the following command to open port 5901 (please modify the port number according to your monitor number): s
- Golang 401 2025-04-02 07:24:01
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- How to ensure high availability of MongoDB on Debian
- This article describes how to build a highly available MongoDB database on a Debian system. We will explore multiple ways to ensure data security and services continue to operate. Key strategy: ReplicaSet: ReplicaSet: Use replicasets to achieve data redundancy and automatic failover. When a master node fails, the replica set will automatically elect a new master node to ensure the continuous availability of the service. Data backup and recovery: Regularly use the mongodump command to backup the database and formulate effective recovery strategies to deal with the risk of data loss. Monitoring and Alarms: Deploy monitoring tools (such as Prometheus, Grafana) to monitor the running status of MongoDB in real time, and
- Golang 1039 2025-04-02 07:21:01
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- How does Go support cross-compilation?
- Go supports cross-compilation via GOOS and GOARCH, enabling developers to build for various platforms from one environment, enhancing deployment and portability.
- Golang 592 2025-03-31 10:01:34
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- Explain the concept of "reflection" in Go. When is it appropriate to use it, and what are the performance implications?
- The article discusses reflection in Go, its uses in generic programming, plugin systems, and metaprogramming, and its performance impacts like slower execution and increased memory use. It suggests minimizing reflection and using alternatives like in
- Golang 325 2025-03-31 10:00:42
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- What are the trade-offs between using for...range and a traditional for loop in Go?
- The article discusses trade-offs between for...range and traditional for loops in Go, focusing on readability, performance, flexibility, and safety. Traditional loops are better for large datasets and fine control, while for...range excels in simplic
- Golang 761 2025-03-31 09:59:41
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- How does Go handle goroutine stack growth?
- The article discusses Go's efficient goroutine stack growth, comparing it to traditional thread management. It explains the process, performance implications, and manual adjustments, highlighting Go's advantages in memory efficiency and scalability.(
- Golang 466 2025-03-31 09:58:38
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- Explain the implementation of interfaces in Go.
- The article discusses implementing interfaces in Go, focusing on abstraction and polymorphism. It explains defining interfaces, their benefits, and provides a practical example using a Rectangle struct.
- Golang 602 2025-03-31 09:57:32
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- What are the different types of channels in Go (unbuffered, buffered)? How do they work?
- The article discusses unbuffered and buffered channels in Go, their functionality, and practical applications. It compares their performance and provides guidance on choosing between them based on synchronization needs, performance, and resource mana
- Golang 297 2025-03-31 09:56:44
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- Explain the concept of "escape analysis" in Go and how it affects performance.
- The article discusses escape analysis in Go, which optimizes memory allocation by deciding whether variables should be placed on the stack or heap, impacting performance. Techniques to enhance this process and scenarios where it might degrade perform
- Golang 487 2025-03-31 09:55:34
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- How does Go's scheduler work?
- The article explains Go's scheduler, focusing on its components (M, P, G) and mechanisms like work stealing and preemption for efficient goroutine management.Character count: 159
- Golang 773 2025-03-31 09:54:34
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- Describe the implementation of maps in Go.
- Go maps use hash tables for efficient key-value storage. Main issues include performance impacts from resizing and concurrency challenges.
- Golang 804 2025-03-31 09:53:41
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- Explain the memory layout of a slice in Go.
- The article explains the memory layout of Go slices, detailing components like pointer, length, and capacity, and discusses their impact on performance and memory allocation.Character count: 159
- Golang 821 2025-03-31 09:52:38
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- What are some common architectural patterns used with Go (e.g., Clean Architecture)?
- The article discusses common architectural patterns in Go, focusing on Clean Architecture's benefits like modularity and testability, and provides implementation steps and case studies.
- Golang 877 2025-03-31 09:49:38
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