It’s free, master Jedi! We’ve gathered top 7 security freeware tools for sysadmins. These tools are supposed to help you make your job easier and troubleshoot security issues faster.

This freeware from Netwrix provides visibility into what’s happening inside your Active Directory by tracking changes to AD users, group membership, organizational units and permissions. It sends you daily reports with details about critical changes including the before and after values made during the last 24 hours.

Free open source password manager, which helps you manage your passwords in a secure way. You can put all your passwords in one database, which is locked with one master key or a key file. The databases are encrypted using the best and most secure encryption algorithms currently known (AES and Twofish).

The tool finds and removes malicious software, including rogue security software, adware, and spyware. It scans in batch mode, rather than scanning all files opened, reducing interference if another on-demand anti-malware software is also running on the computer.

Network scanning and host detection tool that can be useful during several steps of penetration testing. Can be used as a vulnerability detector or a security scanner.

Open source network protocol analyzer that enables users to interactively browse the data traffic on a computer network. The analyzer operates on Unix, Linux and Microsoft Windows operating systems, and employs the GTK+ widget toolkit and pcap for packet capturing.

It provides real-time monitoring and statistics for your servers and SNMP-capable network devices. The tool can be used alongside Spiceworks’ IT Help Desk and Inventory Management tools.

Essential free toolkit for network professionals that runs on Windows. The toolkit provides network monitoring, server and application monitoring, network mapping, diagnostic tools and reports.