Network security tools provide physical and information security to all paths, links, and databases of your network. These tools thus help you protect and safeguard your network security from spams, viruses, and hacking.

Check out the following free tools available on the Internet that will help you in securing your network.

Encryption Software

Ddcrypt- This small and fast utility tool helps you in encrypting files and folders. It allows you to delete the files after the creation of the encrypted files. The files created by the software will create a file with an extension .ddc, that you can decrypt just by browsing.

EyeMage IIE- This tool enables you to securely encrypt any file or text into a bitmap image. Also, you can easily hide photos in photos, zip files in images and Word documents in diagrams by using this tool.

PGP – This tool provides basic PGP encryption capability for messages and files. It is a comprehensive data protection system that accurately reports to satisfy compliance needs.

Email Spam-Blocking Software

MailWasher- It is a powerful spam filter software that enables you to check and manage your e-mails before downloading them. MailWasher eliminates the spam by checking and stopping unwanted viruses and e-mails. This tool with Outlook Express, Outlook, Thunderbird, Incredimail, Windows Mail, Gmail, Hotmail and every other email program.

Spamihilator- This tool examines the emails before downloading from the servers and delete unnecessary messages. Spamihilator uses a Word-Filter that searches messages for known keywords. You

Anti-virus Software

McAfee Stinger – This tool helps in detecting and removing specific viruses. This tool is not a substitute for full anti-virus protection. It is a tool that assists administrators and users when dealing with an infected system.

Clam Antivirus –This tool features high detection rates for viruses and spyware, scanning scheduler, right-click menu integration to Microsoft Windows Explorer.  Clam Antivirus is a for Microsoft Windows NT/98/Me/2000/XP/2003.

Avast Home Edition- It is a free antivirus software for home noncommercial use. It scans for viruses, worms and Trojans on disk, CDs, in E-mail, IM and P2P. This small, fast and reliable tool offers you updates of virus database twice a week.

Port Scanner Software

SuperScan- It is a TCP port scanner that offers a variety of additional networking tools like HTTP HEAD, WHOIS, ping, trace route, etc. Some of its features include Windows host enumeration, banner grabbing,UDP scanning, TCP SYN scanning HTML reports, built-in port description database; etc.

Shields Up- This tool alerts you  whenever your ports is opened through their firewalls or through their NAT routers.

Hope you would utilize these tools to protect your network from all kinds of internal and external security threats. Please provide us your suggestions feedback on the same.