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Linux Uninstall VMWare Server Software
To uninstall VMWare Server software on a Linux system, follow these steps:rn rn Open a terminal on your Linux system. rn Change to the directory where the VMware Server installer is located. This is typically the directory where you downloaded the installer. rn Run the VMware Server installer with t
What Is The Difference Between Authentication And Authorization?
Authentication and authorization are two distinct concepts in computer security that are often used together to control access to resources. Although they are related, they serve different purposes. Authentication refers to the process of verifying the identity of a user or a system. This process
CentOS Install glib-devel
To install the glib-devel package on CentOS, follow these steps:rn rn Open a terminal on your CentOS system. rn Use the yum package manager to search for the glib-devel package:rn rn rn sudo yum search glib - develrn rn rnThis will display a list of packages related to glib-devel . Make sure to choo
CentOS SSH Installation And Configuration
To install and configure SSH on CentOS, follow these steps: n n Install SSH server: Open a terminal and run the following command to install the SSH server:n n n sudo yum install openssh-server n n n n Start the SSH service: After the installation is complete, start the SSH service by running the fo
Solaris Buffer Overflow Protection
Solaris provides several features to help protect against buffer overflows, which are a common type of security vulnerability. Here are some of the key features:rn rn Stack protection: Solaris includes a technology called StackGuard, which is designed to prevent stack buffer overflows. StackGuard ad
CentOS / Red Hat Configure an NTP Client And Server
To configure an NTP client and server on CentOS or Red Hat Linux, follow these steps:rn rn Install the NTP package on the server:rn rn rn sudo yum install ntprn rn rn Edit the NTP configuration file /etc/ntp.conf :rn rn rn sudo nano /etc/ntp.confrn rn rn In the server section, add one or more NTP se
Linux Disable USB Devices (Disable loading of USB Storage Driver)
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:rn rn Open a terminal window and bec
Debian / Ubuntu Linux Apache mod_python Configuration
Here are the steps to configure mod_python on Apache web server on Debian or Ubuntu Linux:rn rn Install Apache web server and mod_python package:rn rn rn sudo apt- get install apache2 libapache2- mod -pythonrn rn rn Enable mod_python module:rn rn rn sudo a2enmod pythonrn rn rn Restart Apache web ser
Change Txqueuelen Under Linux
To change the txqueuelen parameter of an active network interface in Linux, you can use the ifconfig or ip command. Using ifconfig :rn rn Open a terminal and enter the following command to display the current network interfaces:rn rn rn ifconfig - a rn rn rn Identify the interface for which you w
Set Txqueuelen Under Linux
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 ) n To set the txqueuelen parameter for a network interface in Linux, you can use the ifconfig command or the ip command. n Usi
Lost MySQL Admin Password
If you've lost the MySQL admin password, you can reset it by following these steps:rn rn Stop the MySQL server:rn rn sudo systemctl stop mysqlrn rn rn Start the MySQL server with the --skip-grant-tables option to skip the permission check:rn rn sudo mysqld_safe --skip-grant-tables &rn rn rn Conn
Debian / Ubuntu MySQL Error Log File Location
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:rn rn rn sudo less /var/ log /mysql/ error . log rn rn rnThis will display the contents of the error log file in
Suse Linux ( SLES10 ) IPv6 Configuration
To configure IPv6 on SUSE Linux Enterprise Server 10 (SLES10), you can follow these steps:rn rn Open the network configuration file in a text editor:rn rn rn sudo vi /etc/sysconfig/network/ifcfg-eth0rn rn rnReplace "eth0" with the name of your network interface. rn Add the following lines to the fil
Explain: php_self or $_SERVER[‘PHP_SELF’] Usage
In PHP, $_SERVER 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 to
FreeBSD: ldconfig -v Lost Dynamic Linker Configuration
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
Linux Hotplug a CPU and Disable CPU Cores At Run Time
Hotplugging a CPU involves adding or removing a CPU from a running system without shutting down the system. In Linux, you can hotplug a CPU and disable CPU cores at run time using the following steps:rn rn Check if your system supports CPU hotplugging:rn rn rn cat /sys/devices/system/cpu/cpu*/online
FreeBSD: Upgrade PHP4 To PHP5
PHP4 is a very old version of PHP and is not supported anymore. Therefore, it is recommended to upgrade to a newer version of PHP, such as PHP 7.4 or 8.0. However, if you still need to upgrade from PHP4 to PHP5 for some reason, you can follow the steps below:rn rn Install the PHP5 packages:rn rn rn
Debian IPv6 Networking Configuration
To configure IPv6 networking on Debian, you can follow these steps:rn rn Edit the /etc/network/interfaces file:rn rn rn sudo nano /etc/network/interfacesrn rn rn Add the following lines to the file, assuming your network interface is eth0 :rn rn rn iface eth0 inet6 auto rn rn rnThis will tell the sy
MySQL Reset Root Password
To reset the root password in MySQL, you can follow the steps below:rn rn Stop the MySQL service:rn rn rn sudo service mysql stop rn rn rn Start MySQL in safe mode:rn rn rn sudo mysqld_safe --skip-grant-tables --skip-networking &rn rn rn Connect to the MySQL server:rn rn rn mysql -u rootrn rn rn
Print a Web Page From a Shell Prompt
You can print a web page from a shell prompt using the lp command. The lp command is used to print files on a Linux system, and can be used to print web pages as well. Here’s how to do it: n n Open a terminal or shell prompt. n Use the curl command to download the web page you want to print. F
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