Free tcpip software for linux

IPplan is a free (GPL), web based, multilingual, TCP IP address management software and tracking tool written in php 4, simplifying the administration of your IP address space. IPplan can manage and track your IP address and has many other useful features.
IPplan goes beyond TCPIP address management including DNS administration, configuration file management, circuit management (customizable via templates) and storing of hardware information (customizable via templates).
IPplan can handle a single network or cater for multiple networks and customers with overlapping address space. Makes managing ip addresses and managing ip address space simple and easy!
Main features:
- internationalization
- importing network definitions from routing tables
- importing definitions from TAB delimited files and NMAP?s XML format
- multiple administrators with different access profiles (per group, allowing access per customer, per network etc.)
- define address space authority boundaries per group
- finding free address space across a range
- split and join networks to make them smaller and larger - ip definitions remain intact
- display overlapping address space between networks
- search capabilities
- an audit log
- statistics
- keeping track of and sending SWIP/RIPE/APNIC registrar information
- DNS administration (forward and reverse zones, import existing zones via zone transfer)
- template system to extend IPplan to contain site specific information like circuit data, host configuration data, asset information
- device configuration file management
- link addresses together via pointers - ideal for NAT
- external stylesheet to change display look
- triggers - every user event can call a user defined function - useful to execute backend DNS scripts
- external poller - scan subnets for active addresses to gather usage statistics
- IP address request system - allows users to request static IP addresses from the database

Gapcmon is a gtk/glib desktop monitor program for the apcupsd package. Apcupsd interfaces with UPS power systems on local or networked systems. gapcmon connects to apcupsd via the NIS api to collect and displays the current operational state of the UPS.
A Gtk2/GLib2 GUI application used to monitor UPS devices controlled by the APCUPSD package. The program uses the NIS interface from apcupsd to collect event and status information for display to the end-user. Because of this great interface, this program can be executed on any OS supported machine and use the network socket interface to connect back to apcupsd. Of course apcupsd must be compiled with nis support
(i.e. ./configure --enable-nis --enable-gapcmon ...).
The general design model for gapcmon assumes the user has one or more UPSs attached to one or more tcpip/hosts with network connectivity to/from the gapcmon workstation. Gapcmon provides a Preferences panel to capture the hostname, port, and polling cycle for that UPS; along with an "enable" checkbox to indicate if the monitor for this configuration should be active. Gapcmon collects status and event information for each enabled UPS configuration and presents it to the user via a Detailed Information window.
Main features:
- FreeDesktop.org Spec for Notification Area Icons.
- Unlimited support for multiple UPSs.
- Historical Graph of five data points are charted. A total of 40 points are maintained on the graph. The data points are LINEV, BATTV, BCHARGE, LOADPCT, and TIMELEFT.
- Clicking an notification icon will cause the information window for that monitor to become visible or be hidden, if its already visible.
- Monitor tooltips are available when hovering the mouse over the icon, and contain a quick summary of the ups status.
- Icons are dynamically added or removed when enabled in preferences.
- Icon changes to reflect the operational state of the UPS.
- o where state is (online, onbattery, charging, not communicating, no cable)
- History graph supports popup tooltip for data point under the mouse pointer, showing dataseries name, color, time, and value.
- Configuration of the tcpi/ip hostname, tcp port number, and whether that monitor is currently enabled is provided via a central Preferences page.
- background thread for all network io to keep user interface responsive.