Linux system installation tutorial: What to do if the server version is low
If you encounter the problem that the Linux system installation tutorial server version is too low, you can first confirm the current version (cat /etc/os-release). If the version is too low, upgrade the server (e.g. sudo apt update && sudo apt upgrade), update the installation tutorial, and then reinstall the system. After the installation is complete, verify that the version has been updated to the required version (cat /etc/os-release).
Apr 11, 2024 pm 05:21 PM
How to turn off the linux system firewall
Turn off Linux firewall: Install UFW if not already installed. Use sudo ufw disable to disable the UFW firewall. Use sudo ufw status to verify that the firewall is turned off. Use sudo ufw status | grep <port number> to check the status of a specific port. If the output is empty, the port is closed.
Apr 11, 2024 pm 05:15 PM
How to turn off the firewall and selinux in linux
Turn off the firewall and SELinux in Linux by following these steps: Disable ufw firewall: sudo ufw disable Disable SELinux: Edit the SELinux configuration file: sudo vi /etc/selinux/config Modify the SELINUX variable to: SELINUX=disabled Save changes: :wq Restart the system :sudo reboot
Apr 11, 2024 pm 05:03 PM
How to turn off the firewall service in Linux
To disable the firewall service on Linux: Use the command "sudo ufw disable" to disable the UFW service. Use "sudo ufw status" to verify the disabled status. To allow a specific port, use "sudo ufw allow [port]/tcp" before disabling it. Optionally, use "sudo ufw enable" to re-enable the firewall.
Apr 11, 2024 pm 04:57 PM
How to close firewall port in linux
Linux firewall ports can be closed by closing a specific or range of ports via the ufw command: Close a specific port: sudo ufw delete allow port/protocol Close a port range: sudo ufw delete allow port_range:start_port:end_port/protocol Reload the firewall: sudo ufw reload
Apr 11, 2024 pm 04:54 PM
How to turn off linux firewall
Turn off the Linux firewall by following these steps: 1. Determine the type of firewall (UFW, iptables, or nftables); 2. Disable the firewall using the appropriate command; 3. Confirm that the firewall is turned off; 4. Restart the network service (optional).
Apr 11, 2024 pm 04:51 PM
How to turn off the firewall in Linux system
The steps to turn off the Linux firewall vary depending on the version: 1. Debian/Ubuntu: sudo ufw disable; 2. Red Hat/CentOS: sudo systemctl stop firewalld; 3. Fedora: sudo firewall-cmd --state=inactive; 4. Arch Linux: sudo systemctl stop ufw. After closing, network traffic is no longer restricted by firewall rules, but system security is reduced. It is recommended to close only when necessary.
Apr 11, 2024 pm 04:48 PM
How to unzip the zip file to the corresponding directory in Linux system
Here are the steps to extract a ZIP file to a specific directory in Linux: Open a terminal window and navigate to the target directory. Use the unzip command and specify the ZIP file path, followed by the -d option and the target directory path. After decompression is complete, go to the target directory to check whether the file has been decompressed.
Apr 11, 2024 pm 04:42 PM
What should I do if the Linux decompression zip command goes to the specified directory and overwrites the original files?
Use the -o (overwrite) flag in the unzip command to overwrite the original file. The syntax is: unzip -o [-d directory] compressed file.zip. For example, unzip -o -d /tmp example.zip will unzip example.zip to the /tmp directory, overwriting the file with the same name.
Apr 11, 2024 pm 04:39 PM
How to decompress zip with password in linux
On Linux systems, use the following steps to unzip a password-protected ZIP file: Install the unzip command. Use the unzip -P <password> <ZIP file name> command, where <password> is the password of the ZIP file. Enter the correct password. If the password is correct, the unzip command will unzip the contents of the ZIP file to the current directory.
Apr 11, 2024 pm 04:36 PM
What to do if Linux fails to decompress files
Reasons and solutions for failed decompression of files in Linux include: Permission error: Modify the target directory permissions to obtain write permissions. Insufficient memory: Close the program or increase memory, or use the -l flag to decompress a smaller buffer. File corruption: Retrieve the file. Missing dependencies: Install the correct unzip tool dependencies. Invalid archive: Check the file extension and try different tools. File system is full: Clean files or increase file system size. Unzip tool not installed: Install the required tools. Parameter errors: Check the syntax of the command and parameters.
Apr 11, 2024 pm 04:33 PM
How to read file content in linux
Methods of reading file content in Linux: 1. cat displays the entire content; 2. more split-screen display; 3. less provides richer viewing functions; 4. head displays the beginning; 5. tail displays the end; 6. nl Add line numbers; 7. grep searches for specific patterns; 8. sed edits content; 9. awk extracts and processes data.
Apr 11, 2024 pm 04:30 PM
How to read common Linux commands
The pronunciation of Linux commands mostly follows basic English pronunciation rules. Common command pronunciations are as follows: ls - "list"cd - "change directory"mkdir - "make directory"rmdir - "remove directory"touch - "create a new file"rm - " remove"cat - "concatenate"grep - "global regular expression print"sudo - "superuser do"apt-get - "ad
Apr 11, 2024 pm 04:27 PM
How to read the length of txt file using linux command
The txt file length (in bytes) can be read through the wc -c command on Linux systems. The steps are as follows: open a terminal; navigate to the file directory; use the command wc -c filename.txt; view the number of bytes in the wc command output. For example, wc -c myfile.txt outputs 1024 indicating that the file length is 1024 bytes.
Apr 11, 2024 pm 04:24 PM
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