PL/R is a loadable procedural language that enables you to write PostgreSQL functions and triggers in the R programming language. PL/R offers most (if not all) of the capabilities a function writer has in the R language.

Commands are available to access the database via the PostgreSQL Server Programming Interface (SPI) and to raise messages via elog() . There is no way to access internals of the database backend. However the user is able to gain OS-level access under the permissions of the PostgreSQL user ID, as with a C function. Thus, any unprivileged database user should not be permitted to use this language. It must be installed as an untrusted procedural language so that only database superusers can create functions in it. The writer of a PL/R function must take care that the function cannot be used to do anything unwanted, since it will be able to do anything that could be done by a user logged in as the database administrator.

An implementation restriction is that PL/R procedures cannot be used to create input/output functions for new data types.

TimescaleDB is a database for making SQL more scalable for
time-series data. It is engineered up from PostgreSQL, providing
automatic partitioning across time and space (partitioning key), as
well as full SQL support.

TimescaleDB is packaged as a PostgreSQL extension.

This build includes only Apache2 modules;
TSL (timescale licenced modules are not built).

This build only Apache2 modules,
TSL (timescale licenced modules are not build)

policyd-weight is a Perl policy daemon for the Postfix MTA (2.1 and later)
intended to eliminate forged envelope senders and HELOs (i.e. in bogus mails).

It allows you to score DNSBLs (RBL/RHSBL), HELO, MAIL FROM and client IP
addresses before any queuing is done. It allows you to REJECT messages which
have a score higher than allowed, providing improved blocking of spam and virus
mails.

policyd-weight caches the most frequent client/sender combinations (SPAM as
well as HAM) to reduce the number of DNS queries.

It works good against botnets and other faking mass-mailer. policyd-weight is
a good partner for a greylisting-daemon like postgrey.

Add a "check_policy_service inet:127.0.0.1:12525" to your
smtpd_recipient_restriction, which is defined in your main.cf of Postfix.

See http://www.policyd-weight.org for more details.

Squidview is an interactive console program which monitors and displays squid logs in a nice fashion, and may then go deeper with searching and reporting functions.

(If you don't know what squid is or does this program is probably not for you.)

To use squidview you must at least have read access to squid's access.log file. You may need to see your administrator for this. Squidview uses this text log file for all operations. It does not generate its own database for tasks.

Sphinx is a full-text search engine, distributed under GPL version 2.
Commercial licensing is also available upon request.

Generally, it's a standalone search engine, meant to provide fast,
size-efficient and relevant fulltext search functions to other
applications. Sphinx was specially designed to integrate well with SQL
databases and scripting languages. Currently built-in data source
drivers support fetching data either via direct connection to MySQL,
PostgreSQL, or from a pipe in a custom XML format.

As for the name, Sphinx is an acronym which is officially decoded as
SQL Phrase Index. Yes, I know about CMU's Sphinx project.