Rahul Sahu

To configure an NTP client and server on CentOS or Red Hat Linux, follow these steps: Install the NTP package on the server: sudo yum install ntp Edit the NTP configuration file /etc/ntp.conf: sudo nano /etc/ntp.conf In the server section, add one or more NTP servers that the client should synchronize with. For example, to … Read more

To disable USB storage devices on a Linux system, you can prevent the usb-storage driver from loading. This will prevent USB mass storage devices (such as USB flash drives or external hard drives) from being recognized by the system. Here are the steps to do this: Open a terminal window and become the root user … Read more

Here are the steps to configure mod_python on Apache web server on Debian or Ubuntu Linux: Install Apache web server and mod_python package: sudo apt-get install apache2 libapache2-mod-python Enable mod_python module: sudo a2enmod python Restart Apache web server to apply changes: sudo systemctl restart apache2 Create a new directory for your mod_python application in /var/www: … Read more

To change the txqueuelen parameter of an active network interface in Linux, you can use the ifconfig or ip command. Using ifconfig: Open a terminal and enter the following command to display the current network interfaces: ifconfig -a Identify the interface for which you want to change the txqueuelen parameter. Enter the following command to … Read more

The txqueuelen parameter in Linux is used to set the size of the transmit queue of a network interface. The default value is usually 1000 packets. (beckerentandallergy.com) To set the txqueuelen parameter for a network interface in Linux, you can use the ifconfig command or the ip command. Using ifconfig: Open a terminal and enter … Read more

If you’ve lost the MySQL admin password, you can reset it by following these steps: Stop the MySQL server: sudo systemctl stop mysql Start the MySQL server with the –skip-grant-tables option to skip the permission check: sudo mysqld_safe –skip-grant-tables & Connect to the MySQL server as the root user without a password: mysql -u root … Read more

In Debian and Ubuntu, the MySQL error log file is usually located at /var/log/mysql/error.log. To view the contents of the error log file, you can use the less command in the terminal: sudo less /var/log/mysql/error.log This will display the contents of the error log file in the terminal. You can use the arrow keys to … Read more

To configure IPv6 on SUSE Linux Enterprise Server 10 (SLES10), you can follow these steps: Open the network configuration file in a text editor: sudo vi /etc/sysconfig/network/ifcfg-eth0 Replace “eth0” with the name of your network interface. Add the following lines to the file to enable IPv6: IPV6INIT=yes IPV6_AUTOCONF=yes These options enable IPv6 on the interface … Read more

In PHP, $_SERVER[‘PHP_SELF’] is a predefined variable that returns the name of the currently executing script, including any path information. It is often used in web applications to generate self-referencing URLs or to specify the target of a form submission. Here’s an example of how you can use $_SERVER[‘PHP_SELF’] to generate a self-referencing URL: <form … Read more

If the ldconfig command on FreeBSD reports a “Lost Dynamic Linker Configuration” error message, it means that the system’s dynamic linker configuration is broken or missing. This can be caused by a number of factors, such as incorrect permissions or a corrupted file system. To fix this error, you can follow these steps: Check if … Read more