Charles Web Debugging Tool
Charles is an HTTP proxy / HTTP monitor that enables a developer to view all of the HTTP traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).
check_aaccli is a plugin for Nagios which checks the hardware health of Adaptec SCSI RAID controllers. To accomplish this, you must have installed the aaccli binary (from the aacapps package). The plugin checks the error log of single disks (with S.M.A.R.T.) and the health of mirror containers.
check_db2_health is a plugin for Nagios that allows you to monitor DB2 database servers.
check_openmanage is a plugin for Nagios that checks the hardware health of Dell servers running OpenManage Server Administrator (OMSA).
check_oracle_health is a plugin for the Nagios monitoring software that allows you to monitor various metrics of an Oracle database. It includes connection time, SGA data buffer hit ratio, SGA library cache hit ratio, SGA dictionary cache hit ratio, SGA shared pool free, PGA in memory sort ratio, tablespace usage, tablespace fragmentation, tablespace I/O balance, invalid objects, and many more.
check_procs_multi is a Nagios plugin similar to check_procs able to check several processes at once.
checkmySAP is a simple and efficient Hobbit / Xymon extension to monitor remote SAP services on your network.
Checkservice is a Perl script that monitors services on remote hosts.
(commercial) Chroniker is availability monitoring software for servers, network appliances, databases and applications. It queries servers and applications for availability. Technical reports are generated instantly. Service Level Agreement (SLA) reports prove you are exceeding best practices and standards. Automated Alerts are sent via email, SMS etc. when thresholds are exceeded.
an extremely flexible system for monitoring trends in time-series data. Cricket was expressly developed to help network managers visualize and understand the traffic on their networks
Cyberprobe is a software-based probe, collects packets from a set of network interfaces, and any packets which match on a address map are forwarded to an endpoint in a packet-streaming protocol.
dabba is a set of distributed network monitoring tools. Its main use is to gather or scatter actions on a network such as traffic capture, replay, generation, or monitoring.
Daemonzup is a server monitoring tool that will check if several services/daemons are up on a specific server. It is run from a cron job. If a daemon appears to be dead, it will send email to admins, plus it may also try to restart it. It is designed for GNU/Linux and depends on Perl. It can monitor whatever software is daemonized: apache, MySQL, SSH, cron, xinet, syslog, etc.
a solution for monitoring ethernet activity across many different ethernet networks. Darpwatch is based on the original arpwatch source from UCB
DB based NetFlow Collector
DB based NetFLow Collector aims to collect Cisco NetFlow data and store it to a database. It has a plugin interface, which makes it flexible for fitting in particular tasks.
dim_STAT is a performance analysis and monitoring tool for Solaris and Linux (as well all other UNIX) systems. Its main features are a Web based interface, data storage in a SQL database, several data views, interactive (Java) or static (PNG) graphs, real-time monitoring, multi-host monitoring, post analyzing, statistics integration, professional reporting with automated features, and more.
Download Monitor monitors the amount of data downloaded and uploaded over the network over time. It displays this data in easy to read graphs. The utility also allows a usage quota to be set and warns when the quota is exceeded or soon to be exceeded. It is useful for people on capped data plans.
Inspired by EtherPEG, Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes. It is interesting to run it on a host which sees a lot of web traffic.
a distributed system consisting of one or more agents and one or more servers. Agents, distributed on computers over network, are monitoring the network's and hosts' state. Gained data are sent to a special server or servers in order to store them
Egglog generates statistics based on public lines, actions and user channel joins.
a protocol analyzer for ethernet networks. The program allows you to display the received frames either in an overview mode or in a frame detail mode
esniff counts net packets & writes info in berkeley db. very simple.
EtherApe is a graphical network monitor for Unix modeled after etherman. Featuring link layer, ip and TCP modes, it displays network activity graphically. Hosts and links change in size with traffic. Color coded protocols display. It supports Ethernet, FDDI, Token Ring, ISDN, PPP and SLIP devices. It can filter traffic to be shown, and can read traffic from a file as well as live from the network.
Ethereal Network Analyzer
a utility that lets you capture and analyze network traffic.
EthStatus is a simple, easy to use program for displaying commonly needed / wanted statistics in real time about ingoing and outgoing traffic that is usually hard to find, with a simple, efficient interface.
Fallback-gw is a little script to be called via cron that checks availibility of neighbor routers using ping and activates backup routing on ping failure.
Flow Loader And Virtual Information Output
Flow Loader And Virtual Information Output is a netflow collector data grapher. It gets data from netflow collector, loads it into a MySQL database and gets it back to graph daily, weekly, monthly and yearly charts. It shows traffic splitted by ports, as well as total statistics, and generates percentile 95 information suitable for billing in burstable services.
a libpcap-based tool that collect network traffic data and emit it as NetFlow flows towards the specified collector
This tool allows you to monitor your FRITZ!Box devices, provided they export their signal data in the /proc filesystem under /proc/avalanche. It will provide you with a history so you can see how high a carrier got since you started monitoring. It also colors the bars relative to the delta to the maximum value so you can easily spot where carriers are not stable. The tool has a built in cursor functionality, so you can move over any carrier with your mouse and it will show the exact value in the status bar.
Ganglia Cluster Toolkit
Ganglia Cluster Toolkit is a massively scalable cluster monitoring and execution environment. Read more
gbRRDGraphix is a graphical user interface that allows one to use RRDTool commands and "flow-tools" Netflow utilities easily.
GFI Network Server Monitor
(commercial) a monitoring tool that allows administrators to monitor the network for failures or irregularities automatically. With GFI Network Server Monitor, you can identify issues and fix unexpected conditions before your users (or managers) report them to you
Gkrellfah2 (gfah) is a local monitor and interface for the Linux Folding@Home client packaged as a plugin for GkrellM. Also available is a client/server version for monitoring remote machines using GkrellMD. gfah collects status information on active work units for display and records info on completed work units in a local log file.
GNMS is a free Network Management System, a tool to monitor state of network elements. All nodes are mapped on a window. States can be discovered by service, SNMP, and custom pooling, and syslog and SNMP traps can be caught.
Gnome Network Monitor
Gnome Network Monitor is a network monitor for the GNOME desktop. It includes an overview of processes communicating on the network (similar to top for CPU load), network interface statistics, network statistics overview, and an iptables log analyzer.
Gossimon is a gossip-based distributed monitoring system for a cluster of Linux nodes. The package includes a daemon to run on every node of the cluster and client programs for obtaining and displaying information about all nodes
a bandwidth utilization viewer. It gets the bandwidth utilization information for eth0 interface from "/proc/net/dev" file in 15 seconds periods, and stores it in four data files (daily, weekly, monthly, and yearly)
GTKNetTraf is a GTK2 client for the NetTraf remote network monitor. It is designed to have a prettier and more user friendly interface than the existing Tk client, as well as providing additional features, such as the ability to monitor multiple machines simultaneously.
Hardscan is a local netstat replacement that scans for open ports the hard way: by binding to each of them and attempting to handshake with itself. It is meant to be useful in a situation where you may have been rooted, rendering the output of netstat and other security tools untrustworthy.
High Availability Port Monitor
High Availability Port Monitor (HAPM) is a local port status check. It is a simple, light and fast daemon to check TCP/UDP ports. If one or more monitored ports (per IP) downs then the Heartbeat will be killed by HAPM.
httperf is a tool for measuring web server performance. It provides a flexible facility for generating various HTTP workloads and for measuring server performance. The focus of httperf is not on implementing one particular benchmark but on providing a robust, high-performance tool that facilitates the construction of both micro and macro-level benchmarks.
httppp is a network capture analyzer which extract HTTP request response times from a previously recorded network capture file.
an interactive linux console application which shows
bandwidth consumed and total data transferred on all interfaces
Icinga is an Open Source Monitoring System based on Nagios. Icinga will be fully compatible with its predecessor, retaining all the existing Nagios features while adding new features requested by the user community.
icli is a command line interface to icinga, an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting
ICMPush is a tool that send ICMP packets fully customized from command line. This release supports the ICMP error types Unreach, Parameter Problem, Redirect and Source Quench and the ICMP information types Timestamp, Address Mask Request, Information Request, Router Solicitation, Router Advertisement and Echo Request. Also supports ip-spoofing, broadcasting and other useful features. It's really a powerful program for testing and debugging TCP/IP stacks and networks.
icpld is a tool which allows you to keep track of your network connection perfomance. It will log each occasion of broken networking. It runs as a background process, and sends ICMP requests to an ip of your choice.
ifGraph is a set of perl scripts that were created to fetch data from SNMP agents and feed a RRD file (Round Robin Database) so that graphics can be created later. The graphics and the databases are created using a tool called RRDTool.
ifmonitor is a network interface traffic logger and grapher.
IFStatus was developed for Linux users that are usually in console mode. It is a simple, easy to use program for displaying commonly needed / wanted statistics in real time about ingoing and outgoing traffic of multiple network interfaces that is usually hard to find, with a simple and effecient view. It is an alternativle to the PPPStatus and EthStatus projects.
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