Useful Bash One-liners

Below is a collection of useful Bash one-liners that we have come across and use semi-often (or at least often enough to not want to lose them). Honestly we mostly made this just in case we need them again and have lost them elsewhere, but hopefully they end up helping some of you as well!
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Alpine: Installing Filebeat

Filebeat is the tool used to forward logs from a client to an ELK server. It can be seen as equivalent to using rsyslog to forward to a syslog server. I’ve recently finished setting up an ELK server at Rob and I’s apartment, and have been setting VM’s that we run to forward their logs
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Quirks of iptables on Kali Linux

Preface iptables has been a part of linux for over 20 years now, and it’s starting to show its age. In fact, it has already been replaced by nftables as of kernel 3.13. As a consequence of this transitional period, you might run into some bumps along the road while maintaining your iptables based firewall.
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