Symmetric encryption AES SM4, asymmetric encryption RSA SM2, hash digest SHA SM3: How are the strings generated by these algorithms turned into certificates?
Author: laozizhu
GBase 8a Cluster Operations and Maintenance: Troubleshooting and Analysis of Performance Anomalies
This article introduces a case where parameter adjustments made for business needs led to performance anomalies in other business areas. It includes the investigation and analysis processes.
When filtering with a `WHERE` clause on a de-sensitized column in GBase 8a, is the data original or de-sensitized?
GBase 8a cluster supports data masking to ensure the security of sensitive data. Regarding filtering with WHERE clauses, grouping, and other operations on masked data, are these operations performed on the original data or on the masked data?
Detailed Explanation of Underlying Communication Process and -vvv Parameter Output During SSH Connection
I. Basic Environment and Connection Initialization II. Identity File Detection SSH will prioritize "public key authentication" by default, so go to /root/.ssh first... Read more SSH 连接时的底层通信过程-vvv参数输出信息详解
GBase 8a cluster troubleshooting related commands
When GBase 8a experiences occasional issues during stable operation, most are caused by [reason]. This article introduces the most common troubleshooting commands to pinpoint the fault location.
Which party determines the encryption algorithm between the SSH client and server?
SSH, scp, and sftp clients and servers both support various encryption algorithms. Although the final decision rests with the server, the algorithm must be present in the client's provided list and also be supported by the server. Therefore, the client needs to list its most desired algorithms first.
Expand IPv6 Address Pure Shell Script
Pure Shell implementation for IPv6 address expansion (reverse formatting), converting compressed format to 8-segment, 4-digit full format. Supports address validity checks and handling of IPv6 addresses with prefixes.
IPv6 Address Compression Pure Shell Script
Pure Shell implementation of IPv6 address formatting (RFC standard compression format), without relying on iproute2, supports validating address validity, compressing zero segments, handling addresses with prefixes, and outputs all lowercase letters.
GDOM New Installation Scheme with PostgreSQL as Repository
GDOM (GBase Database Operation Manager) is the Nanjing General Technology GBase 8a MPP database operation and maintenance management system. Starting from version GDOM 3.7.0, in addition to supporting MySQL 8 as a resource repository, it now also supports PostgreSQL. This article introduces the installation solution for GDOM's automatic deployment of PostgreSQL as a resource repository.
GDOM processing of repository, analysis library, or historical database user or password change plan
GDOM connects to three databases. The real-time database and historical database are GBASE8a standalone by default. The resource database can be PostgreSQL or MySQL. If the IP addresses, usernames, or passwords of these databases change, you will need to make corresponding modifications in GDOM to continue using them normally.