FreeBSD: pkg_version: corrupted record (pkgdep line without argument), ignoring

The error message “pkg_version: corrupted record (pkgdep line without argument), ignoring” indicates that the pkg_version utility is encountering a package database issue on your FreeBSD system. This error is typically caused by a corrupted or incomplete package database, and can occur when you install or remove packages. Here are the steps you can take to … Read more

FreeBSD Prevent Users From Seeing Information About Processes Owned by Other Users

By default, on FreeBSD, users can see information about processes owned by other users by running the ps command. However, you can prevent users from seeing this information by enabling the security.bsd.see_other_uids sysctl option. Here are the steps to prevent users from seeing information about processes owned by other users on FreeBSD: Log in as … Read more

How to Restart Network Interface in Linux

To restart a network interface in Linux, you can use the ifdown and ifup commands, which are used to bring network interfaces down and up, respectively. Here are the steps to restart a network interface in Linux: Open a terminal or command prompt on your Linux system. Type the following command to bring the network … Read more

Slackware Linux Restart / Start / Stop Networking Service Command

Slackware Linux uses the rc.inet1 script to manage the network configuration and services. To start, stop, or restart the networking service, you can use the rc.inet1 script with the appropriate options. Here are the commands to start, stop, or restart the networking service on Slackware Linux: To start the networking service, type the following command … Read more

Ubuntu Linux: Clean aptitude Cache Command

To clean the aptitude cache on Ubuntu Linux, you can use the apt-get command, which is a command-line tool for managing packages. Here are the steps to clean the aptitude cache: Open a terminal or command prompt on your Ubuntu system. Type the following command to update the package lists and clean the aptitude cache: … Read more

Linux / UNIX: Generate SSH Keys

To generate SSH keys on a Linux or UNIX system, you can use the ssh-keygen command, which is included with most distributions. Here are the steps to generate SSH keys: Open a terminal or command prompt on your Linux or UNIX system. Type the following command to generate an SSH key pair: ssh-keygen This will … Read more

OpenBSD Restart / Reload OpenSSH Without Rebooting

To restart or reload OpenSSH on OpenBSD without rebooting, you can use the rcctl command, which is the OpenBSD system’s service management utility. Here are the steps to restart or reload OpenSSH using rcctl: Open a terminal or command prompt on your OpenBSD system. To restart the OpenSSH service, type the following command: sudo rcctl … Read more

Linux Generate RSA SSH Keys

To generate an RSA SSH key pair on a Linux system, you can use the ssh-keygen command, which is included with most Linux distributions. Here are the steps to generate an RSA SSH key pair: Open a terminal or command prompt on your Linux system. Type the following command to generate an RSA key pair: … Read more