Symmetric encryption AES SM4, asymmetric encryption RSA SM2, hash digest SHA SM3: How are the strings generated by these algorithms turned into certificates?
Tag: Linux
包含Linux内容的文章
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.
Network programming, a socket listens on a certain port. After the service starts, if a new IP is added, does it automatically listen, or does the service need to be restarted?
如果原本Socket是监听在0.0.0.0上，或者IPV6的:: 并且新增加的IP地址是在同一个接口上的别名，则会被监听到。否则如在新接口上的IP，【可能】需要重启服务。否则如果是绑定了特定的IP，比如特定地址，那么新增的IP不会被监听到，需要修改配置并重启服务。
sudo command to execute multiple commands at once, especially sourcing environment variables
sudo可以让当前用户拥有su用户的权限，来执行root下才能执行的命令，访问操作等。本文记录下用sudo一次性执行多个命令的方法。
hadoop搭建之linux 节点间ssh 互信passphraseless的搭建方法
ssh互信可以避免节点间，包括ssh本机，访问时需要手工输入密码的情况。
SSD磁盘做分区后部分机器出现性能下降问题，尚未找到原因
一个诡异的现象，尚没有找到原因。部分机器，用parted做了分区后，用dd和fio测试，均有不同程度的性能下降，而不分区则恢复正常。