Category: Operating System
PowerShell script security is tight and attempting to execute a PowerShell script copied from a different machine throws “the file is not digitally signed. You cannot run this script on the current system.†Here are two ways to fix the error.
It’s funny how programmers get in a "rut", using the same old coding habits and command line syntax for years on end. I just found that you can create new directories and subdirectories with...
Need to monitor Linux server performance? Try these built-in commands and a few add-on tools. Most Linux distributions are equipped with tons of monitoring. These tools provide metrics which can be used to get...
Netcat or nc (the command) is a networking utility for debugging and investigating a network, typically by creating and utilizing raw TCP/IP connections. Â Known as “The Swiss Army Knife for TCP/IP”, nc is used...
Running commands and shell scripts on startup/boot Do you need to run a set of commands or a shell script on CentOS / RHEL / Fedora startup? The easiest way to start a script...
I downloaded and installed the Windows 8 Consumer Preview on a VMWare virtual machine. I had a Windows 8 Technical Preview installed on the VM and the Windows 8 Consumer Preview happily installed on top of it. Installation went quite well although it took a couple of hours to complete (on a quad-core processor). Here’s a few screenshots taken during my walkthrough of the Windows 8 desktop system.
Connecting via SSH, requires a user provide his identity to the remote machine using one of several methods. One method lets you access the remote system without entering a password at each login. Normally, when you log in to a system, you authenticate by entering your password for that system. Your password goes, as it is typed, to the remote system, which authenticates it against the /etc/passwd or /etc/shadow file. By contrast, SSH allow a “password-less” authentication method based on public-key cryptography.
Useful Unix commands To search text in files and all subdirectories find [directory] -name [files] | xargs grep [text to search for] Example to find “insert” in the odb directory (search all files in...
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