Shell

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How to Enter Your SSH Passphrase Only Once per Session

Use SSH agent to temporarily remember your SSH key’s passphrase.

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Make an Easier SSH Multifactor Login

Tired of Multifactor Authentication codes for SSH, even though you just logged in? Here’s how SSH can reuse an existing connection, so you can quickly run single commands, open multiple SSH logins, and still have the same level of security.

Multifactor Authentication for SSH Logins

How to setup MFA/2FA/Two Factor Authentication to enhance the security of your SSH logins.

Exclude False Positives from chkrootkit

Here’s how to exclude items from chkrootkit’s output, be it due to changing PIDs or network interfaces that change.

Checking for Rootkits with chkrootkit

Simple way to check for rootkits using chkrootkit

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Checking for Rootkits with rkhunter

Simple way to check for rootkits

Setting up your Bash Profile

Setting up your bash profile.

Getting Arguments in Bash with getopts

Tips on bash scripting, from random strings, to reading default values.