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  • Does the deployment project on Linux have to be maven?
    Does the deployment project on Linux have to be maven?
    Deploying projects on Linux does not have to be Maven. Common deployment methods include: 1. Manually copy the project files to the server and configure the relevant running environment and startup scripts; 2. Use Shell scripts or other script tools for automated deployment and configuration management. ; 3. Use build tools; 4. Use container technology to package and deploy applications to make them more portable, scalable and manageable in different environments.
    Linux Operation and Maintenance 1519 2023-07-11 16:07:30
  • How to check which process is occupying port 80 in Linux
    How to check which process is occupying port 80 in Linux
    To check the occupancy of port 80 in Linux, you can use the lsof command. The specific steps are: 1. Open the terminal; 2. Run the "sudo lsof -i :80" command to check the processes occupying port 80.
    Linux Operation and Maintenance 5343 2023-07-11 15:49:25
  • Which network card is connected to ssh to linux?
    Which network card is connected to ssh to linux?
    When ssh connects to a Linux server, the default network interface on the server will be used by default. This default interface is the main network interface pointing to the Internet. You can use the "ifconfig" or "ip addr show" command to view the list and details of the network interfaces on the current server. information.
    Linux Operation and Maintenance 1197 2023-07-11 15:43:33
  • Where is the lib folder in linux
    Where is the lib folder in linux
    The lib folder in Linux is located in the "/lib" or "/lib64" folder in the system root directory. These two folders store the shared library files required by the system. The viewing command is "ls /lib" or " ls /lib64".
    Linux Operation and Maintenance 3252 2023-07-11 15:36:50
  • How to check which ports are open in Linux
    How to check which ports are open in Linux
    Linux can check the opened ports through the following methods: 1. Use the netstat command "netstat -tuln", which will display all currently listening TCP and UDP ports; 2. Use the ss command "ss -tuln" to display the current Monitoring TCP and UDP ports; 3. Use the lsof command "lsof -i" to display the currently opened network connections and monitoring ports.
    Linux Operation and Maintenance 28344 2023-07-11 15:21:53
  • How to solve the problem that the virtual machine Linux cannot be started
    How to solve the problem that the virtual machine Linux cannot be started
    The virtual machine Linux cannot be started. The solution is: 1. Check whether the virtual machine configuration is sufficient to meet the needs of the Linux system; 2. Restart the virtual machine to eliminate temporary problems; 3. Confirm whether the startup sequence of the virtual machine is correctly set to From Boot from the hard disk; 4. Try to roll back to a previous stable state; 5. Make sure that the hard disk image file of the virtual machine is not damaged or tampered with; 6. Check whether the operating system is installed correctly; 7. Try to increase the resources of the virtual machine; 8. Check the error message and use the information to solve the problem.
    Linux Operation and Maintenance 4331 2023-07-11 15:05:04
  • How to select text without mouse in linux
    How to select text without mouse in linux
    The method of selecting text without the mouse in Linux is: 1. Use the arrow keys to move the cursor to the starting position of the desired text, then hold down the Shift key and press the arrow keys at the same time to select the text; 2. Hold down the Ctrl key. And press the arrow keys at the same time to move quickly in units of words; 3. Press the Home key to quickly move the cursor to the beginning of the line, and press the End key to quickly move the cursor to the end of the line; 4. Press Ctrl +A shortcut key can select all the text in the current line; 5. Use the shortcut key of a specific application.
    Linux Operation and Maintenance 2157 2023-07-11 14:53:17
  • What should I do if I get an error when stopping mysql on Linux?
    What should I do if I get an error when stopping mysql on Linux?
    When stopping mysql on Linux, the solution is: 1. Check the error message and solve the problem according to the information prompts; 2. Check the log file to find the specific error that caused the stop failure and solve it; 3. Use the force stop command to terminate all MySQL-related process; 4. Use the kill command to manually kill the MySQL process; 5. Ensure that the permissions of MySQL-related files and directories are set correctly; 6. Try to restart the server to force stop the MySQL process.
    Linux Operation and Maintenance 1310 2023-07-11 14:37:16
  • How to solve the memory ecc error reported by the Linux server
    How to solve the memory ecc error reported by the Linux server
    Memory ECC errors reported on Linux servers usually indicate hardware memory errors. The processing steps are: 1. Check the system log to check whether there are error messages or warnings related to memory errors; 2. Refer to the server manufacturer's documentation to find and run the server's Use a memory diagnostic tool to determine the specific memory problem. 3. Try testing each module one by one to find out if a specific memory module is causing the problem. 4. Update the BIOS and firmware. 5. Contact the hardware vendor's technical support department.
    Linux Operation and Maintenance 4462 2023-07-11 14:29:24
  • What's the matter with Linux memory missing?
    What's the matter with Linux memory missing?
    It is found that the memory is missing in Linux. The reasons are: 1. There is a memory leak in the application, causing the memory to be continuously occupied and cannot be released; 2. The cache and buffer are too occupied; 3. Other processes use a large amount of memory in the system. Memory resources, resulting in a reduction in the observed available memory; 4. There may be problems with the kernel or driver, resulting in abnormal memory management.
    Linux Operation and Maintenance 1499 2023-07-11 14:18:00
  • What is the difference between md5 encryption in linux and java
    What is the difference between md5 encryption in linux and java
    In Linux and Java, the implementation of the MD5 encryption algorithm is the same, but there are subtle differences in use: 1. In Linux, you can directly use the command line tool md5sum to perform MD5 encryption on files or strings, while in Java, You need to use the MessageDigest class to calculate the MD5 hash value of the string; 2. In Linux, the hash value output by the md5sum command is usually expressed in the form of a hexadecimal string; in Java, the MD5 hash value is expressed in words by default. Represented in the form of a section array.
    Linux Operation and Maintenance 1185 2023-07-11 14:15:10
  • What should I do if the jstack command in Linux cannot be used?
    What should I do if the jstack command in Linux cannot be used?
    The jstack command in Linux cannot be used. The solution is: 1. Install the JDK correctly and set the environment variables; 2. Make sure that the "JAVA_HOME" and "PATH" environment variables are set correctly; 3. Confirm that the path where the jstack command is located has been added to In the executable path of the system; 4. The JDK version used matches the version of the running Java process; 5. Try to use the root user or run the command as an administrator.
    Linux Operation and Maintenance 3931 2023-07-11 13:53:17
  • How to recover after linux uses command selection to no longer prompt
    How to recover after linux uses command selection to no longer prompt
    After Linux uses a command to choose not to prompt again, the recovery methods are: 1. Check the documentation of the command or use the help option of the command to determine whether there is a recovery prompt function option, and follow the corresponding instructions; 2. Try to delete the relevant settings. configuration file to restore the prompt function; 3. Try to reset the entire command line environment, delete the user configuration and restore to the default settings.
    Linux Operation and Maintenance 2089 2023-07-11 13:47:17
  • What should I do if the flock command cannot be used in Linux?
    What should I do if the flock command cannot be used in Linux?
    The solution to the problem that the flock command cannot be used in Linux is: 1. You can use the chmod command to change the permissions of the file so that it can be accessed; 2. Make sure that the file to be locked exists on the specified path; 3. Use the "which flock" command to verify flock Whether it is available; 4. Make sure that the file system supports the file locking function; 5. Make sure that the syntax of the flock command is used correctly. The general usage is "flock [option] file path command".
    Linux Operation and Maintenance 1111 2023-07-11 11:12:16
  • How to solve the instability of kali linux
    How to solve the instability of kali linux
    The solution to Kali Linux instability is: 1. Use commands to update system software packages to fix possible bugs and stability issues; 2. Make sure the hardware is compatible with Kali Linux and has the correct driver; 3. Make sure the system has enough memory and disk space; 4. View and check system logs; 5. Try to reinstall or repair related applications or services; 6. Clear temporary files and caches to improve system stability.
    Linux Operation and Maintenance 2017 2023-07-11 10:58:01

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