+ CMS Screen Shots +
++ i-scream screenshots +
++ This page provides a sequence of screenshots to help you to + gain a better understanding of the i-scream distributed + central monitoring system and how it may be applied in + networked environments. Click on the thumbnails to + view the full size screenshots. +
+
+ Reports Centre (Web)
+ The i-scream reports centre provides a central access point
+ to all web-based reports that are provided by the i-scream
+ system. Reports are available to display information
+ about the current status of an individual machine and any
+ alerts pertaining to either an individual machine, or a
+ summary of alerts for all machines. Historical
+ information about monitored machines may also be accessed
+ from this point.
+
+
+ 
+
+
+ Latest Information (Web)
+ Here we are viewing the latest information provided by a
+ host. Bars are used to represent values such as disk
+ space and free memory as this makes it easier to spot casual
+ problems. The small graph icons link to historical
+ reports of each field for the previous day. The choice
+ of fields to display on this page is stored in a separate
+ configuration file.
+
+
+ 
+
+
+ Conient (Multiplatform real-time client)
+ Conient is a real-time client
+ that can hook into an i-scream server to allow the user to
+ view host information as it passes through the server.
+ The client displays information provided by the hosts as well
+ as the results of service checks performed by the server on
+ each host (eg FTP, Telnet, etc). Conient is written in
+ Java and can thus be run on most operating systems.
+
+
+ 
+
+
+ Conient (Viewing extra data)
+ Less important host information may be viewed in a seperate
+ window to avoid clutter in Conient's display. Details
+ of the protocol for host-to-server communications are freely
+ available to developers. The protocol itself is
+ extensible and client programs such as Conient display even
+ unrecognised data from modified host programs.
+
+
+ 
+
+
+ Conient (Configuration)
+ Conient is fully configurable from within the program
+ itself. Multiple configurations may be saved.
+ Conient can also be configured to connect to a server through
+ a firewall via an SSH tunnel or suchlike.
+
+
+ 
+
+
+ ihost (Unix/Linux host)
+ The ihost is currently the main Unix/Linux/FreeBSD host
+ application for i-scream. ihost is centrally configured
+ by the server it connects to and periodically sends
+ information about the machine on which it is running.
+ The ihost is written in Perl, so can be easily altered to
+ send extra information to your i-scream server.
+
+
+ 
+
+
+ WinHost (Windows host)
+ The WinHost is similar in concept to the ihost, however, this
+ one runs on Windows NT/2000 servers. Again, the
+ configuration is dynamically obtained from the server.
+ The WinHost is typically only present in the Windows system
+ tray. Double clicking on the system tray icon will
+ bring up a small window that allows data to be viewed and to
+ force reconfiguration with the server.
+
+
+ 
+
+
+ Alerts (Email)
+ The i-scream server includes many alerting mechanisms.
+ Simple email alerts may be sent out if desired. Alert
+ levels and frequencies may be configured for the
+ server. This screenshot shows the format of a typical
+ alert; the contents of which are of course configurable.
+
+
+ 
+
+
+ Alerts (IRC bot)
+ Another i-scream alerter comes in the form of an interactive
+ IRC bot. This may reside in an IRC (Internet relay
+ chat) channel and broadcasts alerts if told to do so.
+ This screenshot shows a typical interaction with a user in
+ the "Bersirc" IRC client.
+
+
+ 
+
+
+ Alerts (Web page)
+ Individual alerts and a summary of all alerts raised by the
+ i-scream server may be viewed on the alerts web pages.
+ These show the different levels of alerts in configurable
+ colours and provides specific details about the alerts being
+ raised for each machine.
+
+
+ 
+
+
+ Alerts (Public helpdesk display)
+ The reports centre also
+ provides a page that may be useful in configuring
+ non-interactive public displays of alerts. These
+ displays automatically refresh the page periodically and
+ supported web browsers may also automatically scroll the page
+ to allow a large font to be employed for easier reading from
+ a distance.
+
+
+ 
+
+
+ Conient (Server queue monitoring)
+ The Conient client may also be used to
+ monitor information about the i-scream server itself.
+ Here we are viewing the status of the internal queues within
+ the server. This shows that the server is performing
+ healthily and that there are no bottlenecks.
+
+
+ 
+
+
+ Historical reports (Web)
+ Historical information is collated by the
+ i-scream server into (typically) a MySQL database. A
+ separate program is used to produce the historical web
+ reports These may be browsed via this web-based interface
+ (see screenshot). The reports to be generated for each
+ machine and the size of the page are of course configurable.
+
+
+ 
+
+
+ Historical reports (Metadata)
+ The historical report generation also
+ produces a number of other files that may be useful for third
+ party analysis tools. The chart itself is written as a
+ GIF image, as well as a small file suitable for including on
+ PHP pages that specifies the minimum and maximum values
+ during the 24 hour period. A file containing the raw
+ plot data is also produced to enable the use of third party
+ on-the-fly plotting tools.
+
+
+ 
+
+
+ The i-scream server
+ The server is distributed and may therefore have multiple
+ points of data entry and run on more than one machine.
+ This helps to reduce the amount of host traffic over large
+ networks and reduces potential bottlenecks. The server
+ is written in Java to allow it to run on most operating
+ systems. This exciting screenshot shows the i-scream
+ server running ;-)
+
+
+ 
+
+