Terraform is awesome. You write code to create infrastructure. The tools themselves are modular and as such it has providers that allow creation of infrastructure in AWS, Microsoft Azure, Google Cloud Platform, Oracle, and many others. Terraform is *the* way that companies try to build multi-cloud solutions.
Wireguard is a new VPN based on elliptic curve crypto (Curve25519, ChaCha20, Poly1305) and public key cryptography. It has a very small attack surface and is extremely fast. It's currently used in production by Mullvad VPN and AzireVPN.
MTR is basically a combination of traceroute and ping - I've used it
frequently to diagnose routing issues between hosts, and it's come in
handy multiple times.
Added Sheepdog, which is a already mature distributed block storage, S3 Storage and distributed file systems. Created by the japanese NTT and licenced as GPL2.
Project is retired and shouldn't be used, per their website:
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The Obnam project is retired. See https://blog.liw.fi/posts/2017/08/13/retiring_obnam/ for more information. Please use another backup solution instead.
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PHP Server Monitor is a nice and (well maintained) self hosting monitoring solution.
(If there shold be a link to the code, here it is: https://github.com/phpservermon/phpservermon)
FreeIPA is not a tool to manage LDAP directories, but rather it's own LDAP directory (389) with Kerberos and named built in. Similar to Active Directory for *nix.
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