What is the difference between configuration management and orchestration?
Configurationmanagementensuresindividualsystemsareconsistentlyconfiguredtoadesiredstate,whileorchestrationcoordinatesworkflowsandinteractionsacrossmultipleservices.1.ConfigurationmanagementtoolslikeAnsible,Puppet,andChefenforceidempotencybydefiningsy
Jun 24, 2025 am 12:17 AM
Where are system logs located in Linux?
Logs in Linux systems are usually stored in the /var/log directory, which contains a variety of key log files, such as syslog or messages (record system logs), auth.log (record authentication events), kern.log (record kernel messages), dpkg.log or yum.log (record package operations), boot.log (record startup information); log content can be viewed through cat, tail-f or journalctl commands; application logs are often located in subdirectories under /var/log, such as Apache's apache2 or httpd directory, MySQL log files, etc.; at the same time, it is necessary to note that log permissions usually require s
Jun 24, 2025 am 12:15 AM
How to create a baseline for system performance?
The system performance baseline is the key indicator data of the system in normal operation, and is used for subsequent problem identification and comparison analysis. Its core lies in establishing reference standards that reflect changes in business cycles by collecting indicators such as CPU usage, memory usage, disk IO, and network delay. It is recommended to use top, htop, iostat, Grafana Prometheus or cloud service monitoring tools to collect data, and last for 2 weeks to one month to cover different business periods. When setting thresholds, you should focus on the maximum and quantile values ??based on your own data rather than general rules, and dynamic adjustments should be made in combination with trend analysis to ensure that the baseline effectively guides operation and maintenance decisions.
Jun 24, 2025 am 12:15 AM
What is log rotation and why is it important?
Ifyoudon’trotatelogs,theygrowindefinitely,leadingtodiskspaceexhaustion,sloweranalysis,andsysteminstability.Logrotationworksbyarchiving,compressing,ordeletingoldlogsbasedonruleslikescheduleorfilesize,usingtoolssuchaslogrotate.Youshouldrotatelogsdepend
Jun 24, 2025 am 12:07 AM
iOS 16 GM Released to Download for iPhone Beta Testers
Apple has made the iOS 16 GM candidate available to all users participating in the beta testing programs, just a few days before its scheduled public release. GM versions are generally considered the final beta releases, closely mirroring the softwar
Jun 23, 2025 am 10:34 AM
4 Useful Commands to Clear Linux Terminal Screen
Just like any other operating system, Linux also supports a rich Graphical User interface (GUI). In fact, it supports multiple graphical desktop environments such as – GNOME, KDE, Cinnamon, and the list goes on.However, most Linux administrators and
Jun 23, 2025 am 10:29 AM
6 Key Performance Metrics to Monitor in Linux Servers
This 4-part series will explain six key performance metrics to monitor in a Linux server. By the end of this series, you will understand what factors in a Linux system you need to look out for that contribute to the overall system performance and als
Jun 23, 2025 am 10:27 AM
How to Change the Font of a Webpage in Safari on iPhone & iPad
Have you ever wanted to customize the font seen on a webpage? Maybe you have a preferred font that you want to see while you’re reading, or the font on a particular webpage is difficult to read? In that case, you’ll be excited to know that y
Jun 23, 2025 am 10:21 AM
How to Run Windows 11 From a USB Without Installing
Want to adjust your Windows 11 settings or explore new features without affecting your main system's stability? You can easily accomplish this by making a bootable copy of your Windows 11 system on a USB drive. This “portable Windows” enables you to
Jun 23, 2025 am 10:19 AM
Enable Low Power Mode on Mac via Command Line
If you're a MacBook owner and frequently use the command line, you might find it helpful to know that you can activate Low Power Mode directly from the terminal.Using the terminal to turn on Low Power Mode on a MacBook Pro, MacBook Air, or any other
Jun 23, 2025 am 10:16 AM
Capture Full Size Webpage Scrolling Screenshots in Chrome
The Google Chrome browser provides two methods for capturing full-size webpage screenshots. This can be essential or beneficial for many web professionals, whether they're developers, designers, editors, managers, writers, analysts, or anyone else wo
Jun 23, 2025 am 09:56 AM
How To Install R Programming Language in Linux
R is a widely-used programming language and software environment designed for developing statistical and graphical computing tools within data science. It closely resembles the S programming language and environment, with R serving as an alternative
Jun 23, 2025 am 09:51 AM
Understanding /etc/mtab File Parameters in Linux System
In this article, we will take a closer look at the /etc/mtab file in Linux and examine the different parameters and settings it contains.Understanding the /etc/mtab File in LinuxThe /etc/mtab file is used to list all currently mounted filesystems. An
Jun 23, 2025 am 09:47 AM
Listen to Long Audio Messages Easier on iPhone with This Trick
Have you ever received a long audio message on your iPhone and while listening, the screen turns off, interrupting the playback and forcing you to start over? It's pretty frustrating, isn't it?Next time you receive a lengthy voice message on your iPh
Jun 23, 2025 am 09:44 AM
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