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Understanding bashrc vs .bash_profile vs .zshrc
bash
unix
shell
profile
zsh
When delving into the world of command-line interfaces (CLI), you might have encountered files like .bashrc, .bash_profile, and .zshrc. But what are they, and why are they so crucial for developers and system administrators? Let's unravel this mystery.
ppxai
2023-11-18
93
0
Enhancing Application Security with OAuth 2.0 and OpenID Connect
access
connect
oauth
openid
security
Enhancing Application Security with OAuth 2.0 and OpenID Connect
ppxai
2023-11-18
105
0
TLS 1.3: Enhanced Security, Faster Connections
client
message
security
server
tls
In today's digital landscape, the security and speed of data transmissions are crucial. In this regard, the Transport Layer Security (TLS) protocol plays a pivotal role. Here, we'll dive deep into the new and improved TLS 1.3 protocol, with an emphasis on its handshake process, which has undergone substantial improvements in terms of speed and security compared to its predecessor, TLS 1.2.
ppxai
2023-11-18
99
0
TLS 1.3: Enhanced Security, Faster Connections
client
message
security
server
tls
In today's digital landscape, the security and speed of data transmissions are crucial. In this regard, the Transport Layer Security (TLS) protocol plays a pivotal role. Here, we'll dive deep into the new and improved TLS 1.3 protocol, with an emphasis on its handshake process, which has undergone substantial improvements in terms of speed and security compared to its predecessor, TLS 1.2.
ppxai
2023-11-18
122
0
Disk I/O issues: Understanding and fixing them to boost system performance
boost
command
disk
performance
storage
Disk I/O and space usage issues are common causes of performance degradation in computing systems. Low system speeds can directly affect its ability to retrieve and store information on the disk.
ppxai
2023-11-18
92
0
Unleashing the Power of Storage in Kubernetes: A Comprehensive Guide
kubernetes
backup
disk
resources
storage
ppxai
2023-11-18
71
0
The Null Value Header Bug: Why Clients Didn't Receive Packets in Spring Gateway
spring
bug
gateway
header
null
This problem surfaced in our API gateway service, which we built using Spring Gateway. The service handles exceptions by implementing the ErrorWebExceptionHandler interface, returning processed exception details to the client and adding some header information. Everything was functioning well until one day, after a code merge, issues began to sporadically appear. Here's what we observed:
ppxai
2023-11-18
113
0
Inside Linux Networking: A Code-Level Exploration of IPVS and IPTABLES
linux
code
iptables
networking
packet
ppxai
2023-11-18
106
0
What's the Difference Between Blocking vs Non-Blocking and Sync vs Async?
async
between
blocking
difference
std
During application development, we often confront terms like "Blocking," "Non-blocking," "Synchronous," and "Asynchronous." It's a common misconception to view these as synonymous. In reality, they represent distinct, albeit intertwined, concepts.
ppxai
2023-11-18
119
0
Kubernetes Networking: From Basics to Best Practices
kubernetes
network
networking
plugins
service
ppxai
2023-11-18
73
0
How Docker Containers Work – Explained for Beginners
容器镜像服务
container
containers
this
virtual
A container is a lightweight, standalone, and executable software package that includes everything needed to run a piece of software.
ppxai
2023-11-18
104
0
79. 单词搜索
int
word
数组
搜索
字符串
Given an m x n grid of characters board and a string word, return true if word exists in the grid.
ppxai
2023-11-18
107
0
301. 删除无效的括号
return
string
遍历
递归
字符串
Given a string s that contains parentheses and letters, remove the minimum number of invalid parentheses to make the input string valid.
ppxai
2023-11-18
82
0
410. 分割数组的最大值
dp
int
变量
动态规划
数组
Given an array nums which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays.
ppxai
2023-11-18
84
0
用Go语言实现WebSSH远程连接
go
服务器
函数
连接
浏览器
WebSSH是一种通过Web浏览器远程连接到SSH服务器的技术。它允许用户在不需要本地SSH客户端的情况下,通过Web浏览器连接到远程服务器并执行命令。WebSSH的实现原理是通过WebSocket协议在Web浏览器和SSH服务器之间建立一个双向通信通道,使得用户可以在Web浏览器中输入命令并将其发送到SSH服务器,同时也可以接收SSH服务器的输出并在Web浏览器中显示。
ppxai
2023-11-18
372
0
服务网格化 -- Linkerd和Istio
服务网格
istio
服务
架构
通信
服务网格化是一种新兴的架构模式,它旨在解决微服务架构中的一些常见问题,例如服务发现、负载均衡、故障恢复、安全性等。服务网格化通过将这些功能从应用程序中分离出来,并将它们放在一个专门的网络层中,从而使得应用程序可以更加专注于业务逻辑,而不必担心这些底层的问题。
ppxai
2023-11-18
131
0
Deep Dive into Elasticsearch's Distributed Architecture
architecture
data
distributed
elasticsearch
search
In the digital age, data stands as a crucial asset for enterprises. The effective storage, retrieval, and analysis of this data are among the primary challenges faced by businesses today. Elasticsearch, commonly referred to as "ES", is a robust, scalable, and real-time search and analytics engine, proving to be an indispensable component in the contemporary data pipeline. With a wide range of applications, from full-text search and logging to more complex use cases such as machine learning and graph analysis, Elasticsearch stands out. This blog post provides a comprehensive insight into Elasticsearch's distributed architecture, touching upon its main components, read-write operations, indexing principles, and application scenarios.
ppxai
2023-11-18
105
0
Iptables NAT:实现网络中转
nat
iptables
互联网
配置
网络
在本文中,我们将深入解析iptables NAT(网络地址转换)的功能,以及如何使用它进行网络中转。我们会详细解释NAT中使用的PREROUTING、POSTROUTING和OUTPUT链的含义,介绍如何配置DNAT(目标网络地址转换)和SNAT(源网络地址转换),并在内网场景中演示这些概念。最后,我们将阐述如何持久化iptables配置,以保证在重启后仍然生效。
ppxai
2023-11-18
553
0
网络ACL与安全组:云计算中的网络安全
网络安全
安全
云计算
acl
网络
在云计算环境中,网络安全是至关重要的。为了保护您的资源和数据,云服务提供商提供了多种网络安全控制手段,其中最常见的是网络访问控制列表(ACL)和安全组。本文将详细介绍网络ACL和安全组的概念、实现原理以及架构图。最后,我们将对比常见的防火墙方案,包括WAF、防火墙、VPN、ACL和安全组。
ppxai
2023-11-18
225
0
CAP, BASE, Paxos, and Raft: Key Concepts in Distributed Systems
raft
algorithm
distributed
key
theory
When discussing the design principles underpinning distributed systems, the CAP theorem and BASE theory serve as essential foundations that warrant our understanding.
ppxai
2023-11-18
124
0
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