Best Hacking Tool Which Network Administrator Must Know

As a Network Administrator we have to know what kind of tool that used by hacker to do their hacking jobs. Its very important to prevent being hacked by irresponsible man. We all know that hacking tool is actually Network Administrator tool which abused by some irresponsible party.

Nessus

The Nessus^® vulnerability scanner is active scanners, featuring high-speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture. Nessus Project aims to provide to the internet community a free, powerful, up-to-date and easy to use remote security scanner for  Linux, BSD, Solaris, and other flavors of Unix.
Visit Nessus.org

Ethereal

Ethereal® is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education.

Its support Windows, Redhat / Fedora, Solaris

Snort

Snort is an open source network intrusion detection system, capable of performing real-time traffic analysis and packet logging on IP networks.

TCPDump / LIBPCAP

TCPdump is the most used network sniffer/analyzer for UNIX. TCPTrace analyzes the dump file format generated by TCPdump and other applications.

Visit Tcpdump.org

DNSiff

DNSiff is a collection of tools for network auditing and penetration testing. dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf, and webspy passively monitor a network for interesting data (passwords, e-mail, files, etc.).


Visit Official Site!!

GFI LANguard™
GFI LANguard Network Security Scanner (N.S.S.) automatically scans your entire network, IP by IP, and plays the devil’s advocate alerting you to security vulnerabilities. To use this tool we must buy from the author or their affiliate vendor, but we can still use the trial version that can be downloaded bellow.

Ettercap

>Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones)and includes many feature for network and host analysis.
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Nikto

Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against web servers for multiple items, including over 2500 potentially dangerous files/CGIs, versions on over 375 servers, and version specific problems on over 230 servers.
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John the Ripper

John the Ripper is a fast password cracker, currently available for many flavors of Unix, Windows, DOS, BeOS, and OpenVMS.
Download one of the latest free versions :

• John the Ripper 1.7.6 (stable, Unix - sources, tar.gz, 814 KB) and its signature
• John the Ripper 1.7.6 (stable, Unix - sources, tar.bz2, 654 KB) and its signature
• John the Ripper 1.7.0.1 (stable, Windows - binaries, ZIP, 1360 KB) and its signature
• John the Ripper 1.7.0.1 (stable, DOS - binaries, ZIP, 895 KB) and its signature

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OpenSSH

OpenSSH is a FREE version of the SSH protocol suite of network connectivity tools, which encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection hijacking, and other network-level attacks.
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Kismet

Kismet is an 802.11 wireless network sniffer – this is different from a normal network sniffer (such as Ethereal or tcpdump) because it separates and identifies different wireless networks in the area.
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NetFilter

NetFilter and iptables are the framework inside the Linux 2.4.x kernel which enables packet filtering, network address translation (NAT) and other packetmangling.
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IP Filter

IP Filter is a software package that can be used to provide network address translation (NAT) or firewall services.
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Paket Sniffer
OpenBSD Packet Filter | Visit site!

Superscan 4

SuperScan 4 is a completely-rewritten update of the highly popular Windows port scanning tool, SuperScan. Here are some of the new features in this version.

Superior scanning speed Support for unlimited IP ranges Improved host detection using multiple ICMP methods TCP SYN scanning UDP scanning (two methods) IP address import supporting ranges and CIDR formats Simple HTML report generation Source port scanning Fast hostname resolving Extensive banner grabbing Massive built-in port list description database IP and port scan order randomization A selection of useful tools (ping, traceroute, Whois etc) Extensive Windows host enumeration capability

WotWeb

	This utility takes a list of IP addresses/ranges and scans them for commonly used web ports, showing the web server type for each active web port. You can select which ports to scan from a fixed list of common web ports. Port 80 is the usual one to look for and 443 should be selected if you are looking for web servers running HTTPS.

YAPS - Yet Another Port Scanner 

	On Windows XP Service Pack 2, YAPS may appear to be very slow at scanning. This is due to a Microsoft limiting the number of outgoing TCP connection attempts. Google for 'Event ID 4226' for more information.