today's howtos
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How to create netstat aliases to help focus on network activity
The netstat command provides a tremendous amount on information on network activity. With the -s option (netstat -s), it will display summaries for various protocols such as packets received, active connections, failed connections and a lot more. While the data is extensive enough to make you dizzy, the more you get used to what the command's output looks like, the more you'll become familiar with what to expect and maybe even get better at spotting what's unusual. In this post, we're going to look at various portions of the netstat -s command's output using crafted aliases to make it easier.
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To list the various types of statistics the netstat -s command provides, I ran a command like that shown below to list the protocols it displays. The grep -v "^ " portion of the command selects only lines that don't start with a blank. Since the details are all indented, this command shows just the protocols.
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Install Oracle Database 23c on Oracle Linux 8
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How to Merge Multiple PDFs Into One Single File on Linux
Looking for a Linux app to merge multiple PDFs into a single file? Luckily, Linux has several PDF-editing utilities, both command-line and GUI-based.
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13 Ways to Secure SSH Server Connections on Linux
SSH is a globally-used protocol used to access remote servers. Here's how you can strengthen your SSH connections on Linux for maximum security.
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How to use the ncdu command
In this Linux tip, we’re going to look at the ncdu command. It's a command that you can use to see how much disk space your directories and files are using. It will list them in size (largest first) order.