tcpdump prints a description of the contents of packets on a network interface which match a given boolean expression. It can also be run with the -w flag, which causes it to save the packet data to a file for later analysis, and/or with the -r flag, which causes it to read from a saved packet file rather than to read packets from a network interface. In all cases, only packets which match the expression will be processed by tcpdump. tcpdump logs more than just TCP, IP, or ethernet packets, but has a whole suite of decoders, including ones for USB.
Puppet lets you centrally manage every important aspect of your system using a cross-platform specification language that manages all the separate elements normally aggregated in different files, including users, cron jobs, and hosts, along with obviously discrete elements like packages, services, and files. Its simple declarative specification language provides powerful classing abilities for drawing out the similarities between hosts while allowing them to be as specific as necessary, and it handles dependency and prerequisite relationships between objects clearly and explicitly.
OraRep is a PL/SQL snippet (embedded in a shell script) which creates a well-formatted HTML report on a given database instance, providing you with an overview on your instance(s), some hints for performance tuning, and more. It has been tested with Oracle 8.1.7, 9.0.1, and 9.2. The script easily fits into a cron task to be run on a regular basis. Sample output (HTML) is included. OSPRep does the same job for Oracle StatsPack Reports based on SnapShot Levels up to 7, and provides additional "plugins" for more detailed reporting on special issues. It also optionally creates a separate page with charts to visualize the results and more.
OpenSMART is a monitoring (and reporting) environment for servers and applications in a network. Its main features are a nice Web front end, monitored servers requiring only a Perl installation, XML configuration, and good documentation. It is easy to write more checks. Supported platforms are Linux, HP/UX, Solaris, AIX, *BSD, and Windows (only as a client).
PostgreSQL is a robust relational database system with over 25 years of active development that runs on all major operating systems. It is fully ACID compliant, and has full support for foreign keys, joins, views, triggers, and stored procedures (in multiple languages). It includes most SQL92 and SQL99 data types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and TIMESTAMP. It also supports storage of binary large objects, including pictures, sounds, or video. It has native programming interfaces for C/C++, Java, .Net, Perl, Python, Ruby, Tcl, and ODBC, among others, and exceptional documentation.
GoAnywhere Gateway acts as an enhanced reverse proxy that provides an additional layer of network defense. It allows your trading partners to connect to GoAnywhere Services without having to open incoming ports into your private network or store sensitive information in the DMZ. GoAnywhere Gateway is certified VMware Ready. GoAnywhere Gateway serves as a transparent interface between external clients and GoAnywhere Services without exposing sensitive files and the private network. This is an essential solution for meeting strict security policies and complying with state privacy laws, HIPAA, PCI DSS, SOX, and GLBA.