ELK (or Elasticsearch, Logstash, Kibana) is a set of three technologies by elastic that can be combined to collect and visualize log data. Think of it as rsyslog on steroids and with pretty colors. First off, this guide is written using examples from an Arch Linux host. Theoretically, you should be able to follow
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So recently I ran into an issue where I needed to create a virtual disk 20TB in size. Unfortunately, XCP-ng does not allow doing this through its manager because it uses an older disk system. However, you can manually create an LVM partition and map it to the VM. Here is what you need to
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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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Some of you may be asking… are you deranged? Well let me tell you first why I choose to use Arch Linux as my server (and desktop) OS of choice in order of importance in my eyes. Rolling release – Because Arch Linux is rolling release, your server (if you update it) is always on
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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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As-simple-as-I-can-manage instructions on how to install the ovirt-guest-agent in an Alpine Linux VM,
The ovirt-guest-agent package is currently broken on Debian 9, and possibly older versions. The package will install successfully but then fail to start until a few extra steps are taken. I have not confirmed if this will work for Debian 8 and earlier. If you start the tools, and then get a systemctl status like
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The following applications/resources have been found to be useful when working with the Windows operating system, and should make the job of any Windows administrator easier. 1. simplewall – An extension of Windows Firewall, this program allows for on demand blocking/allowing of inbound/outbound network connections. 2. ShutUp10 – An application which provides
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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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How to redirect stderr into a variable in Bash (and other Bourne shells), tcsh, fish, or oh scripts, with examples for each.