Linux Tools: Argus monitoring

Argus Monitoring

Argus Monitoring System software is a system and network monitoring

application. It will monitor (TCP + UDP applications, IP connectivity, 

SNMP OIDS, Programs, Databases, etc). It presents a nice clean, easy 

to view web interface It can send alerts numerous ways (such as via pager) 

and can automatically escalate if someone falls asleep. It is open-source 

software written entirely in Perl, and provides a web based interface. 

Linux Tools: SysUsage

SysUsage

SysUsage continuously monitor our systems informations and 

generate periodical graph reports using rrdtool or javascript jqplot 

library. All reports are shown throught a web interface.

Linux Tools: kvm

kvm

KVM (for Kernel-based Virtual Machine) is a full virtualization solution 

for Linux on x86 hardware containing virtualization extensions (Intel VT 

or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides 

the core virtualization infrastructure and a processor specific module, kvm-intel.ko 

or kvm-amd.ko. KVM also requires a modified QEMU although work is underway 

to get the required changes upstream.

Linux Tools: Angry IP Scanner

Angry IP Scanner

Angry IP scanner is a very fast IP address and port scanner.

It can scan IP addresses in any range as well as any their ports.

It is cross-platform and lightweight. Not requiring any installations,

Angry IP scanner simply pings each IP address to check if it's 

alive, then optionally it is resolving its hostname, determines the 

MAC address, scans ports, etc. The amount of gathered data about

each host can be extended with plugins.

Linux Tools: cn=monitor

cn=monitor

CN=Monitor is a general monitoring tool for Directory Servers which

focuses especially on the iPlanet based (Red Hat/Fedora/Sun), Open

LDAP and eDirectory servers. The idea is to monitor entire small to 

large scaled deployed directory server environments.

Linux Tools: collectl

collectl

Collectl is a light-weight performance monitoring tool capable of

reporting interactively as well as logging to disk. It reports statistics

on cpu, disk, infiniband, lustre, memory, network, nfs, process,

quadrics, slabs and more in easy to read format

Linux Tools: OSSEC-hids

OSSEC-hids

OSSEC is a free, open source host-based Intrusion Detection System

(IDS). It performslog analysis, integrity checking, Windows registry 

monitoring, rootkit detection, time-based alerting and active response.

Linux Tools: W3Perl

W3Perl

W3Perl is a free logfile analyser, which can parse Web/FTP/Mail/

CUPS/DHCP and Squid logfiles. Most major web logfile formats

are supported (Web : CLF/ECLF/NECLF on Unix, IIS/W3C on

Microsoft ; Mail : Postfix/Sendmail/Exim), as well as split/compressed 

files. "Page tagging" and counter are also supported if you do not

have logfiles access. The output is spread over HTML pages, with

graphics and a sortable table. Stats can be run from a single command

line or from a web browser.

Linux Tools: tcptrack

tcptrack

tcptrack is a sniffer which displays information about TCP connections

it sees on a network interface. It passively watches for connections on 

the network interface, keeps track of their state and displays a list of 

connections in a manner similar to the unix 'top' command. It displays

Linux Tools: NetHogs

NetHogs

NetHogs is a small 'net top' tool. Instead of breaking the traffic

down per protocol or per subnet, like most tools do, it groups

bandwidth by process. NetHogs does not rely on a special 

kernel module to be loaded. If there's suddenly a lot of network

Linux Tools: Phoronix Test suite

Phoronix Test suite

Phoronix Test Suite (PTS) is a free, open-source benchmark software

for Linux and other operating systems developed by Phoronix Media

with cooperation from an undisclosed number of hardware and software

vendors.

Linux Tools: Linux Trace Toolkit

Linux Trace Toolkit

The Linux Trace Toolkit (LTT) is a set of tools that is designed to

log program execution details from a patched Linux kernel and then

perform various analyses on them, using console-based and graphical

tools. LTT has been mostly superseded by its successor LTTng 

(Linux Trace Toolkit Next Generation).

Linux Tools: SystemTap

SystemTap

SystemTap (stap) is a script and tool for dynamically

instrumenting running production Linux operating systems. System

administrators can use SystemTap to extract, filter and summarize

data in order to enable diagnosis of complex performance or functional

problems. SystemTap consists of open-source software and includes

Linux Tools: vnstat

vnstat

vnStat is a console-based network traffic monitor for Linux

and BSD that keeps a log of network traffic for the selected

interface(s). It uses the network interface statistics provided

by the kernel as information source. This means that vnStat

won't actually be sniffing any traffic and also ensures light use

of system resources. However, in Linux at least a 2.2 series

kernel is required.

Linux Tools: Conky

Conky

Conky is a free software system monitor for the X Window System.

It is available for Linux, FreeBSD, and OpenBSD. Conky is highly

configurable and is able to monitor many system variables including

the status of the CPU, memory, swap space, disk storage, temperatures,

processes, network interfaces, battery power, system messages, e-mail 

inboxes, Arch Linux updates, many popular music players (MPD, XMMS2,

BMPx, Audacious), and much more.

Linux Tools: GKrellM

GKrellM

GKrellM (GNU Krell Monitors) is a computer program based on

the GTK+ toolkit that creates a single process stack of system

monitors. It can be used to monitor the status ofCPUs, main

memory, hard disks, network interfaces, local and remote mailboxes,

and many other things. Plugins are available for a multitude of tasks, e.g.

controlling theXMMS media player or a SETI@home client from within

the stacked monitor.

Linux Tools: Webalizer

Webalizer


Webalizer is a GPL application that generates web pages of analysis,
from access and usage logs Statistics commonly reported by Webalizer
include: hits; visits; referrers; the visitors' countries; and the amount of data
downloaded. These statistics can be viewed graphically and presented by
different time frames, such as per day, hour, or month.

Linux Tools: IpCop

IpCop

IPCop Firewall is a Linux firewall distribution geared towards

home and Small Office/Home Office users. The IPCop interface

is very user-friendly and task-based. IPCop offers the critical

functionality of an expensive network appliance using stock, or

even obsolete, hardware and OpenSource Software.

Linux Tools: IptablesWeb

IptablesWeb:

IptablesWeb is a free software (under GPL licence): it allows to

inspect iptables logs, to receive e-mails and alerts using a web

browser, it's a plugin-based multilanguage and multiuser software

written in PHP

Linux Tools: Httperf

Httperf

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. The three distinguishing characteristics of