Hobbit is a tool for monitoring servers, applications and networks. It collects information about the health of your computers, the applications running on them, and the network connectivity between them. All of this information is presented in a set of simple, intuitive webpages that are updated frequently to reflect changes in the status of your systems.

Hobbit is capable of monitoring a vast set of network services, e.g. mail-servers, web-servers (both plain HTTP and encrypted HTTPS), local server application logs, ressource utilisation and much more.

SecureLinx Spider™ provides secure KVM over IP (keyboard, video, mouse) management of servers over an IP network. Unlike traditional KVM switches on the market, Spider offers a flexible, scalable and affordable CAT5-based remote access KVM solution in a cable friendly, compact “zero-footprint” package.

The latest addition to the SecureLinx family of IT/data center management products, this KVM over IP solution eliminates server-to-switch CAT5 cable distance limitations, and gives system administrators non-intrusive and cost-effective 24/7 access to servers across a wide variety of IT/network environments: from mission critical servers in high-density data centers, to servers distributed over corporate campuses, multi-floor buildings, remote/branch office sites. Management access, from BIOS to applications, from any web browser anywhere, at any time… guaranteed.

Often Unix system administrators need an easy way to redirect any stderr output generated from crontab entries to a specific email address. With the ifinput binary, it's simple. For example:

20 8 * * * /usr/local/sbin/daily_stuff.sh 2>&1 | /usr/local/bin/ifinput mailx -s "Error: daily_stuff.sh" system-errors@foo.org

Just arrange the crontab entries so that the periodic jobs don't generate stdout unless there's something interesting there. Then redirect stderr to stdout and pipe both to ifinput.

ifinput can be used in a variety of different scenarios, not just cron jobs.
The source code is available here: http://www.generalconcepts.com/resources/software/gctools-1.0.tar.gz
It has a very small footprint and will compile without issue on most unix systems.

shmux solves a fairly simple problem that can be addressed
with a few lines of shell or Perl. This may lead you to think that using
shmux is total overkill, but shmux is a powerful tool
that offers many time and life saving features, so read on!

• When used in a script:
  
  • Ability to define what is and what is not an error for the command
    being run (based on exit code and output content)

  • Output and exit codes are saved into files to facilitate use from a
    script.
• When used interactively (directly on the command line, or from
  within a script/wrapper):
  
  • Well formatted output
    
  • Standard error output displayed in bold
    
  • Real-time status shown
    
  • Ability to pause, resume, quit cleanly
    
  • Automatically pause on error, allowing the user to cleanly stop
    before more goes wrong

Tentakel has the following features:

• Parallel execution of commands on several hosts.
• Format strings that control how the output of the remote commands is about to be displayed and how the output of different hosts should be separated from each other.
• A powerful configuration file that can be used to define groups of hosts. Such groups can contain other groups. Each group can be assigned a remote method, a username and a format string.
• Easy extensibility to allow for different remote methods (currently only ssh and rsh are supported).

It does not try to be a complex Distributed Resource Management System (DRM) like the Sun Grid Engine or Condor. Tentakel aims to be useful mainly for administration purposes.

sar2rrd.pl is a Perl script that can be used to generate RRDTool graphs from sar output.

It creates a PNG Graph for each statistics group collected by sar. Version 2.0 handles both Linux and Solaris sar output. Each statistics of the group is represented as a single line in the graph.

Only the filename to parse is mandatory. This filename if produced by a command such as "sar -A -f filename"

Without any additional parameters, sar2rrd.pl creates graphs for the period of time specified in the given filename.

Before running the script, make sure the path to "rrdtool" command is correct.

Keyplex is a keyboard multiplexer for X11 terminals. It will spawn a number of terminals, and when it has focus it relays all keystrokes and mouse-button2 (paste) to them. Because the terminals can be used individually as well, this tool is ideal to simultaneously administrate multiple systems.

runit is a cross-platform Unix init scheme with service supervision, a replacement for sysvinit, and other init schemes. It runs on GNU/Linux, *BSD, MacOSX, Solaris, and can easily be adapted to other Unix operating systems. runit is discussed on the <supervision@list.skarnet.org> mailing list.

To subscribe send an empty email to <supervision-subscribe@list.skarnet.org>.

Mailing list archives are available at skarnet.org, and gmane.org. The program runit is intended to run as Unix process no 1, it is automatically started by the runit-init /sbin/init-replacement if this is started by the kernel.