[List]Useful Networking Tools,Fixes & Utilities

[digen]

Below are a few fixing,repairing & utility tools which I've compiled which are essential parts of a network admins toolkit.Other users too may find this useful.
Feel free to suggest such tools & utilities & I'll add them to my post.

1.LSP-Fix: is a free utility to repair a specific type of problem associated with certain Internet software. This type of software is known as a Layered Service Provider or LSP, a piece of software that can be inserted into the Windows TCP/IP handler like a link in a chain. However, due to bugs in the LSP software or deletion of the software, this chain can get broken, rendering the user unable to access the Internet.

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2.Winsockfix: If your internet connection stops working after removing spyware using adaware or spybot, or because you removed a virus, your TCP/IP stack may have been corrupted. Running WinsockXPFix.exe may correct this problem. WinsockXPfix restores the files associated with connecting to a tcp/ip network.

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3.Iperf: Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, datagram loss.

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4.TCPView:TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on your system, including the local and remote addresses and state of TCP connections. On Windows NT, 2000 and XP TCPView also reports the name of the process that owns the endpoint. TCPView provides a more informative and conveniently presented subset of the Netstat program that ships with Windows.

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5.PSTools: The Windows NT and Windows 2000 Resource Kits come with a number of command line tools that help you administer your Windows NT/2K systems. Over time, I've grown a collection of similar tools, including some not included in the Resource Kits. What sets these tools apart is that they all allow you to manage remote systems as well as the local one. The first tool in the suite was PsList, a tool that lets you view detailed information about processes, and the suite is continually growing. The "Ps" prefix in PsList relates to the fact that the standard UNIX process listing command-line tool is named "ps", so I've adopted this prefix for all the tools in order to tie them together into a suite of tools named PsTools.

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6.Ethereal: Ethereal is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education. It has all of the standard features you would expect in a protocol analyzer, and several features not seen in any other product. Its open source license allows talented experts in the networking community to add enhancements. It runs on all popular computing platforms, including Unix, Linux, and Windows.

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7.Snort: Snort is an open source network intrusion detection system, capable of performing real-time traffic analysis and packet logging on IP networks. It can perform protocol analysis, content searching/matching and can be used to detect a variety of attacks and probes, such as buffer overflows, stealth port scans, CGI attacks, SMB probes, OS fingerprinting attempts, and much more.

Snort uses a flexible rules language to describe traffic that it should collect or pass, as well as a detection engine that utilizes a modular plugin architecture. Snort has a real-time alerting capability as well, incorporating alerting mechanisms for syslog, a user specified file, a UNIX socket, or WinPopup messages to Windows clients using Samba's smbclient.

Snort has three primary uses. It can be used as a straight packet sniffer like tcpdump(1), a packet logger (useful for network traffic debugging, etc), or as a full blown network intrusion detection system.

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8.Microsoft Baseline Security Analyzer: MBSA is the free, best practices vulnerability assessment tool for the Microsoft platform. It is a tool designed for the IT Professional that helps with the assessment phase of an overall security management strategy. MBSA Version 1.2.1 includes a graphical and command line interface that can perform local or remote scans of Windows systems.

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9. Fport: fport reports all open TCP/IP and UDP ports and maps them to the owning application. This is the same information you would see using the 'netstat -an' command, but it also maps those ports to running processes with the PID, process name and path. Fport can be used to quickly identify unknown open ports and their associated applications.

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I'll add more as & when I stumble across more such useful proggy's.

[enoonmai]

Good one, you've pretty much listed most of the tools one would need: A couple more from my side. One tool that I absolutely cant do without is Nmap.

Nmap:
Nmap (Network Mapper) is a free open source utility for network exploration or security auditing. It was designed to rapidly scan large networks, although it works fine against single hosts. Nmap uses raw IP packets in novel ways to determine what hosts are available on the network, what services (application name and version) they are offering, what operating system (and OS version) they are running, what type of packet filters-firewalls are in use, and dozens of other characteristics. Nmap runs on most types of computers and both console and graphical versions are available. Nmap is free software, available with full source code under the terms of the GNU GPL.

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IPCheck:
This is a small (56KB) multithreaded application designed to combine several useful network features into one program.

It will perform Ping Scans, Port Scans, forward and reverse lookups by hostname or IP and single Pings on hosts. It also easily shows all current IP addresses on the computer. Running the mouse over the Taskbar icon will show a tooltip with IP addresses.

Right click on the icon to show a menu of available options, and a list of current IP's. Choose any of the tools, or click on an IP address to copy it to the clipboard.

IPCheck can utilise up to 200 threads when performing Ping Scans or Port Scans, providing very fast scanning speeds, providing you have the bandwidth to support the scan traffic.

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ServersCheck:
ServersCheck Standard Edition is a tool for monitoring, reporting and alerting on network and systems availability. The standard version can be used for free with up to 3 devices, which is adequate for personal use. It can monitor any TCP Port (HTTP, HTTPS, FTP, NNTP, POP3, SMTP, VNC, DNS, etc.), check ODBC, Oracle, MySQL databases, trap SNMP values (disk space, free memory, CPU usage,...), verify content served from a web server and check NT services and process availability. In addition, it also can monitor environmental devices like temperature, humidity, flooding. Alerting can be done via email, MSN or network message. ServersCheck runs as a local service and is administrated through a browser interface by connecting to the built-in web server. Additional features include alerts and graph output for long-term statistics tracking.

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[digen]

Oh yeah man Nmap,how did i forget that?
Anyways thanks for contributing,makes it worth. 8)