Maintenance

Maintenance

Server Maintenance

Update on scheduled maintenance or any network outages been planned and status

20 December 2022

How do I use the drop command in SQL?

Posted in Maintenance

DROP can be used to remove a single table or an entire database.

A database, table, index, or view that is already in existence is destroyed by the DROP statement.

A relational database management system component can be removed using the SQL DROP statement (RDBMS).

database_name: Name of the database to be deleted.

 

20 December 2022

What is VM Vfs_cache_pressure?

Posted in Maintenance

vfs cache pressure. This setting regulates the kernel's propensity to reclaim the RAM needed to cache directory and inode objects. The kernel will try to reclaim dentries and inodes at a "fair" pace with respect to pagecache and swapcache reclamation when the default setting of vfs cache pressure=100 is used.

20 December 2022

How do I fix a WiFi problem in Ubuntu 18.04?

Posted in Maintenance

We must launch the programme Software & Updates. Then, we'll click the Additional Drivers option to see whether any Wi-Fi drivers are suggested for installation. If so, we need to choose the driver and click the Apply Changes button. Allow some time for the installation to complete.

20 December 2022

Who is the parent of all the processes in Linux?

Posted in Maintenance

With the exception of the startup process, every process in the operating system is started when a process calls the fork() system call. The parent process is the one that used the fork() system call. So a parent process is a process that generates a child process.

20 December 2022

What command is used to clear the terminal screen?

Posted in Maintenance

To clear the terminal screen, use the clear command from the Unix operating system. This command first searches the environment for the type of terminal, and then it searches the terminfo database to determine how to clear the screen. Additionally, this command will disregard any possible command-line inputs. Additionally, the clear command doesn't accept any arguments and is practically identical to the cls command on a variety of other Operating Systems.

20 December 2022

How do you make a file executable in Ubuntu?

Posted in Maintenance

An executable file's user rights must be correctly specified in order for it to run.

To achieve this, take the following actions:

Start a terminal.

Navigate to the folder containing the executable file.

Enter the command as follows:

for any . bin file: sudo chmod +x filename.bin

for any .run file: sudo chmod +x filename.run

Enter the necessary password when prompted to do so.

Now the current user with root access can execute the file.