Hello everyone, this is Linux Enthusiast Engineer. In this article, I will share 20 hardcore commands for efficiently analyzing log files using Shell. During this May Day holiday, I used these commands to troubleshoot 99% of log issues, which are simple yet effective. Let’s take a look! Source: https://segmentfault.com/a/1190000009745139 I run a small website on … Read more
Previously, an article analyzed the reasons for packet loss in bonded network interfaces and their solutions. This article will detail the root causes of packet loss in bonded network interfaces and dynamically analyze the kernel using the bpftrace tool. We will also use dropwatch to observe packet loss in the kernel: Packet loss occurs in … Read more
0x00->Overview On the official Kali website, the introduction to 0trace states: “This package is a routing tracing tool that can run on existing open TCP connections, allowing it to easily bypass certain types of stateful packet filters.” This tool is pre-installed in the Kali system. In Linux systems, it can be obtained using the command: … Read more
1. What is an HTTP Packet What is HTTP HTTP: (HyperText Transfer Protocol) is the protocol used for transferring hypertext from World Wide Web (WWW) servers to local browsers. HTTP is a protocol based on the TCP/IP communication protocol for transmitting data (HTML files, image files, query results, etc.). HTTP is an application layer protocol, … Read more
01 EtherCAT Master Performance Testing Generally, EtherCAT master performance testing focuses on the communication cycle of the master, whether the cycle time is stable, and how much jitter there is. Therefore, tests can be set under different cycle times, such as 2ms, 1ms, 500us, 250us, 125us, etc. to test the jitter. Third-party packet capture tools, … Read more