Article Tags
Article Tags
How to Set Up Passwordless SSH Login in Linux? (ssh-keygen Guide)
Passwordless SSH login requires three steps: generate a key pair (such as ssh-keygen-ted25519), use ssh-copy-id to copy the public key to the remote server authorized_keys, and check the server configuration (PubkeyAuthenticationyes) and permissions (~/.ssh700, authorized_keys600).
Jan 06, 2026 am 01:57 AM
How to Zip and Unzip Files in Linux? (tar and zip Commands)
In Linux, zip/unzip is used for cross-platform compatible compressed archives, and tar is used for archive compression that preserves Unix features such as permissions. zip completes compression and packaging in a single step, and tar packages first and then compresses, and supports multiple algorithms such as gzip and xz.
Jan 06, 2026 am 12:36 AM
How to open a port in the Linux firewall
ToopenaportinLinux,usefirewalldoriptablesbasedonyoursystem.Forfirewalld(CentOS/RHEL/Fedora),run:sudofirewall-cmd--permanent--add-port=8080/tcp,thenreloadwith--reloadandverifywith--list-ports.Foriptables(Debian/Ubuntu/oldersystems),use:sudoiptables-AI
Jan 05, 2026 am 12:40 AM
How to Check Disk Space in Linux? (Step-by-Step Guide)
Linux disk space check mainly uses df-h to check the overall usage, du-sh to analyze directory occupancy, and df-i to troubleshoot inode exhaustion problems; it can be combined with tools such as sort, find, and ncdu to accurately locate space bottlenecks.
Jan 05, 2026 am 12:32 AM
How to create and delete partitions in Linux with fdisk
Uselsblktoidentifythetargetdisklike/dev/sdb.2.Runsudofdisk/dev/sdbtoenterinteractivemode.3.Typentocreateanewpartition,specifytypeandsize,ordtodeleteanexistingone.4.Verifychangeswithpandsavewithw.5.Formatthenewpartitionusingsudomkfs.ext4/dev/sdb1andmo
Jan 04, 2026 am 06:23 AM
How to Set File Permissions in Linux with chmod? (Practical Guide)
Linux file permissions are controlled through chmod to read (r), write (w), and execute (x) permissions. They are oriented to three types of users (owners, groups, and others). They can be set in symbolic mode (such as u x) or octal mode (such as 644). Overly open permissions such as 777 must be avoided.
Jan 04, 2026 am 05:40 AM
How to Install Software in Linux with apt? (For Ubuntu/Debian)
Before using apt to install software, you must first run sudoaptupdate to update the package index, and then use sudoaptinstall to install it; use aptsearch to search and aptshow to view details; to uninstall, use sudoaptremove or purge, and finally execute sudoaptautoremove to clean up dependencies.
Jan 03, 2026 am 04:22 AM
How to run a command in the background in Linux
Use & to directly run commands in the background, such as sleep300&; if it has been run in the foreground, you can use Ctrl Z to pause and resume bg; if persistence is required, use nohupsleep300& to cooperate with jobs, fg, and kill management tasks.
Jan 03, 2026 am 01:23 AM
How to change the timezone in Linux
Usetimedatectltochangetimezone:checkcurrentsettingwithtimedatectl,listoptionsviatimedatectllist-timezones,thensetdesiredzoneusingsudotimedatectlset-timezoneRegion/City.
Jan 02, 2026 am 02:35 AM
How to Install Python 3 on a Linux System? (Command-Line Guide)
Python3 is usually pre-installed or can be installed through the package manager; first run python3 --version to check, if not installed, execute sudoaptinstallpython3 (Debian/Ubuntu) or sudodnfinstallpython3 (Fedora/RHEL/CentOS) according to the release version, then install pip and venv and upgrade pip.
Jan 02, 2026 am 12:52 AM
How to Install Docker on Linux? (Official Steps Guide)
Docker can be installed natively on mainstream Linux distributions: Ubuntu/Debian needs to add the GPG key and official repository and then install it with apt; CentOS/RHEL/Fedora needs to add the repository and install it with yum/dnf; all systems need to start the service, add the user to the docker group and verify the hello-world image.
Jan 01, 2026 am 03:36 AM
How to Manage Users and Groups in Linux? (Command Examples)
Linux user and group management is implemented through command line tools, which require sudo permissions; useradd/userdel creates and deletes users, groupadd/usermod manages groups, usermod modifies user attributes, and id/cut and other commands view information. Direct editing of configuration files is strictly prohibited.
Jan 01, 2026 am 01:09 AM
How to Set System Time and Date in Linux? (timedatectl examples)
timedatectlisthemodern,unifiedtoolformanagingtimeonsystemdsystems.Ithandlestimezone,NTPsync,hardwareclock,andmanualtimesettings—usetimedatectlstatus,set-timezone,set-time(afterdisablingNTP),andset-ntp.
Dec 31, 2025 am 06:15 AM
How to run your first Docker container on Linux? (Hello World Example)
There are only three steps to successfully run the first Docker container: install Docker and start the service, add the user to the docker group, and execute dockerrunhello-world to output "HellofromDocker!".
Dec 31, 2025 am 12:26 AM
Hot tools Tags
Undress AI Tool
Undress images for free
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undresser.AI Undress
AI-powered app for creating realistic nude photos
ArtGPT
AI image generator for creative art from text prompts.
Stock Market GPT
AI powered investment research for smarter decisions
Hot Article
Popular tool
vc9-vc14 (32+64 bit) runtime library collection (link below)
Download the collection of runtime libraries required for phpStudy installation
VC9 32-bit
VC9 32-bit phpstudy integrated installation environment runtime library
PHP programmer toolbox full version
Programmer Toolbox v1.0 PHP Integrated Environment
VC11 32-bit
VC11 32-bit phpstudy integrated installation environment runtime library
SublimeText3 Chinese version
Chinese version, very easy to use
Hot Topics
20426
7
13582
4