Rahul Sahu To find out which table is consuming the most resources in MySQL, you can use the following SQL query: SELECT table_name, engine, table_rows, data_length, index_length, round(((data_length + index_length) / 1024 / 1024), 2) “Size in MB” FROM information_schema.TABLES WHERE table_schema = “your_database_name” ORDER BY (data_length + index_length) DESC; Replace your_database_name with the name of your … Read more
Ubuntu 32-bit version has a limitation of using only up to 4GB of RAM. To use more than 4GB RAM on a Ubuntu system, you need to install the 64-bit version of the operating system. The 64-bit version of Ubuntu can support up to 2^64 bytes (16 exabytes) of RAM. To check if your system … Read more
If your numeric keypad is disabled in Gnome, it may be because the mouse keys feature has been turned on. Mouse keys allow you to control the mouse pointer with the numeric keypad. To turn off mouse keys and enable the numeric keypad in Gnome, follow these steps: Open the Gnome Control Center. You can … Read more
To allow SELinux to serve the contents of a loopback mounted ISO image via Apache, you can follow these steps: First, mount the ISO image using the mount command. For example, if the ISO file is called example.iso and is located in the /mnt directory, you can use the following command: mount -o loop /mnt/example.iso … Read more
To mount a Windows shared folder (CIFS) on a Solaris or OpenSolaris system, you can use the mount command. Here are the steps to follow: Create a mount point for the shared folder. For example, let’s create a directory named /mnt/winshare: # mkdir /mnt/winshare Make sure the smbfs package is installed. If it’s not installed, … Read more
To monitor the ZFS disk space storage pool file system, you can use the zpool and zfs commands. Here are some examples: To display information about all ZFS storage pools: zpool list To display the usage statistics for a particular ZFS storage pool: zpool list -v <pool name> To display detailed information about a particular … Read more
To install a .tbz package file in FreeBSD, you can use the pkg_add command. Here are the steps: Open the terminal on your FreeBSD system. Download the .tbz package file that you want to install. Use the pkg_add command to install the package. For example, if you have downloaded a package file named example.tbz, the … Read more
The wget utility is not installed by default in FreeBSD, but it can be easily installed using the pkg package manager. To install wget, follow these steps: Open a terminal or login to the FreeBSD system. Type the following command as the root user to update the package repository: # pkg update Type the following … Read more
The mv command is used to move or rename files and directories in Unix/Linux operating systems. Here are some examples of how to use the mv command: To rename a file: mv oldfile newfile This will rename the file oldfile to newfile. To move a file to a different directory: mv file /path/to/directory/ This will … Read more
The ping command in UNIX is used to test connectivity between two nodes in a network. It sends packets to the destination node and waits for a response. Here are some examples of how to use the ping command in UNIX: Ping a host by IP address: ping 192.168.1.1 Ping a host by hostname: ping … Read more