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.
PGObserver (https://github.com/zalando/PGObserver) is an open-source monitoring solution for PostgreSQL databases. It covers almost all the metrics provided by the database engine's internal statistics collector, and works out of the box with all PostgreSQL versions (beginning with 9.0) as well as AWS RDS.
Let me know if you have any questions. :)
Eric Light
n1trux
Jonathan Frederickson
Daniel Andersen
Ferdinand Mütsch
Sietse Snel
pszlazak
Ryan DeShone
Marco De Donno
Moshe-Immerman
Karl G
sokai
Georg
Sid
shevabam
Kristof Hardy
Fuzzy
Luke
Jonas Otten
Conor O'Callaghan
RoseHosting.com
Greg Chetcuti
Ryan DeShone
davidbgeek
Jeroen Arnoldus
nodiscc
Adam Dobrawy
O . S . O
Alexander F Rødseth
Stan Bright
Edward D
alexpdp7
Tyler Bird
Lauri at Zalando
phre4k