The lives of SysAdmins and IT teams are frustrating and complicated enough. You don’t need the lack of practical tools (if you can even find any available for what you need) for managing and retrieving information, networking, monitoring and the dozens of other tasks and responsibilities filling your plate on a day-to-day basis. You also don’t need to shell out hundreds or even thousands of dollars on tools, utilities, and programs to ease the demands of your job.
Since we know how over-flowing your plate already is, we’ve put together a list of the best free tools for SysAdmins, ranging from diagnostics and analytics to troubleshooting, monitoring and maintenance. These 48 tools are must-haves for the SysAdmin toolkit, whether for occasional or daily use.
We have scoured hundreds of SysAdmin tools and desktop support tools and then selected these 48 based on their ease of use, security, portability, and compatibility with servers and operating systems. Whether you need to diagnose and solve a problem or analyze a directory or a handle, the following list of free tools for SysAdmins and desktop support professionals should help alleviate some of your administrator stress. Please note: The following best tools for SysAdmins are not ranked in order of quality or importance. The numerical listing is provided for point of reference only.
Byobu is an open-source software project that enhances the GNU Screen for the Ubuntu server distribution. Developed and released as free software under the GPLv3, Byobu now is supported on many Linux and UNIX distributions. Byobu includes an enhanced profile, configuration utilities, and system status notifications, not just for the GNU screen, but also for the Tmux terminal multiplexer. Byobu works on most Linux, BSD, and Mac distributions.
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2. Process Explorer v16.02
@Sysinternals
Process Explorer helps you figure out which program has opened a particular file or directory, as it shows you information about which handles and DLLs processes have opened or loaded. Process Explorer’s capabilities make it useful for determining DLL-version problems or handle leaks and providing insight into how Windows and applications work.
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3. Microsoft Sysinternals Suite
@Sysinternals
Microsoft offers its Sysinternals Troubleshooting Utilities in a single Suite of tools. While the downloadable file contains the individual troubleshooting tools and help files, it does not contain non-troubleshooting tools such as the BSOD Screen Saver or NotMyFault.
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4. Belarc Advisor – Free Personal PC Audit (Version 8.4)
The Belarc Advisor v8.4 provides users with a simple, yet powerful report of what comprises their computer system, including software installation, video card, CPU(s), software update, network information, etc. Results of the scan display in your default browser, so you have quick and easy access to your audit, and that information is kept privately on your PC, rather than being sent to a web server.
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Designed for server, desktop, and embedded use, VirtualBox is a “general purpose full virtualizer for x86 hardware.” Rich in features, VirtualBox is fit for home users as well as enterprise customers. VirtualBox is a community effort, and Oracle ensures the product meets high-quality, professional criteria while encouraging everyone to contribute.
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6. Process Hacker
@sourceforge
Started in 2008, Process Hacker was designed to be an open source alternative to programs such as Task Manager and Process Explorer, with the intended audience of advanced end users and developers. Now, it is recognized for its ability to help users monitor system resources, debug software, and detect malware; it truly is a multi-purpose tool that just so happens to be free.
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To use the Windows Error Lookup Tool (WELT), simply type in an error code and it will display the Facility, Status, Code, Define, and Description for the error. While WELT is intended for developers, average users should also discover the usefulness of this program.
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8. PING
A live Linux ISO, PING is a smart choice to easily backup and restore whole partitions. Users have the option of burning PING on a CD and booting it or integrating it into a PXE/RIS environment. Based on the Linux from Scratch (LFS) documentation, PING is the perfect tool for rescuing a system.
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phpMyAdmin supports a wide range of MySQL, MariaDB, and Drizzle operations, as it is intended to handle the administration of MySQL over the web. Its frequently used operations, such as managing databases, tables, columns, etc., can be performed via the user interface, and you still maintain the ability to directly execute any SQL statement. phpMyAdmin has received several awards and honors and continues to be used around the world; as such, it is being translated into 72 languages and supports both LTR and RTL languages.
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10. NirLauncher
@nirsoft
NirLauncher is a bundle of more than 180 portable utilities for Windows, all of which have been developed for the NirSoft website during the last few years. NirLauncher is compatible with any version of Windows, from Windows 2000 to Windows 8, and also works on x64 systems.
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11. WinAudit Freeware – PC Audit & Inventory Software
WinAudit Freeware – PC Audit & Inventory Software is an easy to use PC and audit inventory of software, licenses, security configuration, and more. With no set up or fee of any kind, WinAudit Freeware has become one of the most popular SysAdmin Tools available.
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12. Joeware Utilities
@joewaredotnet
Joeware Utilities’ mission is to provide free, powerful Windows utilities so administrators are able to more effectively manage their environments. Created by Joe, a Microsoft MVP (someone who is a knowledgeable technology expert who makes himself available to help the community as a whole and who is award by Microsoft for doing so) who has earned that award every year since 2001, Joeware is a variety of utilities intended to help solve technical issues.
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13. Windows System Control Center
The Windows System Control Center is available in three free forms: WSCC Portable, WSCC Standard, and WSCC Portable Apps. With its latex version, 2.3.0.0 being made available July 23, 2014, WSCC is free for personal and commercial use. The program allows you to install, update, execute, and organize the utilities from various utility suites.
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14. Everything Search Engine
@voidtools
Everything is a search engine that locates files and folders by filename instantly for Windows. While Windows Search function limits the information that is displayed, Everything initially displays every file and folder on your computer but gives you the option of typing in a search filter to narrow your results.
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15. WinDirStat/KDirStat/Disk Inventory X
@windirstat
WinDirStat is a program that allows you to view disk usage statistics and works as a cleanup tool for various versions of Microsoft Windows. Alternative programs also are available: KDirStat is an alternative for Linux, and Disk Inventory X is for MacOS X. When the program starts, it reads the entire directory tree once and then presents it in three useful views: the directory list, the treemap, and the extension list.
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Wireshark is the leading protocol analyzer, allowing you to see what’s happening on your network at a microscopic level. The Wireshark project began in 1998 and has continued to be developed by contributions from networking experts across the world.
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17. Raider
@sourceforge
If you’re looking for a tool to automate Linux software raid conversion, Raider is for you. As a bash shell script, Raider deals with specific oddities of several Linux distros, including Ubuntu, Mandriva, LinuxOS, and more, and uses linux software raid (mdadm) to complete the conversion.
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18. NeDi
NeDi discovers your network on a regular basis, allowing you to locate and track all connected devices, monitor traffic or broadcasts, send mails or SMS when certain events occur, and backup the configuration of your switches and routers. Various views offer a customized look and feel, including dynamic maps that can be used to visualize traffic and errors between buildings or even cities.
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Advanced IP Scanner gives you the ability to scan hundreds of IP addresses at high speed simultaneously. Deeply integrated with Radmin remote control software, Advanced IP Scanner lets you scan your network, find all computers running Radmin Server, and connect to any of them with one click.
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20. Look@LAN Network Monitor
@softonic_en
An advanced network monitor, Look@LAN Network Monitor allows users to monitor their net in a few clicks. Benefits of Look@LAN include being extremely easy to use and fast in discovering your network’s active nodes, plus it is full of relevant features.
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21. Steward
@stewardio
Steward integrates easily with nearly any scripting or development language with its easy to use RESTful API; as a result, Steward is able to support any operating system. Even if you are not tracking periodic job with Steward, you can use their API to monitor and graph the run times for any piece of code and get an alert when things are running at a less than optimal level.
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22. Yeller: Exception Analytics
@t_crayford
With Yeller, you can discover and diagnose production exceptions. In fact, Yeller automatically analyzes all occurrences of an exception and tells you what is common between them. You no longer have to debug exceptions one at a time. *Please note: Yeller is free for a 30-day trial, with no credit card required.
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23. Blistd
A script written in Python, Blistd checks each DNS Blacklist to see whether your IP has been listed. Blistd is incredibly easy to download and use: simply download the tool, change the IP and email settings, execute, and you are finished.
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24. Fido
A multi-threaded file watch utility, Fido can monitor a file or directory to see if its modification time changed, and it’s intuitive enough to recognize a change even if the daemon was down at the time of the change. Written for RedHat Enterprise Linux, Fido should run in all Linux flavors, and the source bundle contains RedHat init.d scripts for users’ convenience.
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25. Postfix Admin
@sourceforge
Created for Postfix, Postfix Admin is a web-based management tool. Postfix Admin, a PHP-based application, handles Postfix style virtual domains and users that are stored in MySQL or PostgreSQL.
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26. Hashtab
Hashtab may be used as a simple MD5 checker as a more advanced file integrity check. Hashtab provides an easy way to verify the integrity and authenticity on both Windows and Mac machines. *Please note: Hashtab is free for people using it on their own home computer, student computer, or charitable organization. For people wishing to use Hashtab at work, it is $10 per person for a single copy use, or there may be discount options available for larger quantities.
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27. WinMD5Free
WinMD5Free works with Windows 98, Me, 2000, XP, 2003, Vista, and 7 to compute MD5 hash value or checksum for files, including those larger than 4 GB. A tiny and fast utility, it also is frequently used to check the integrity of a file and to download.
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Calculate and verify checksums and hashes from Windows Explorer with the HashCheck Shell Extension. Users also have the capability of integrating file checksumming functionality into Windows and creating and verifying SFV files with the tool. Open-source with a very small memory and disk footprint, HashCheck helps anyone with a knowledge of C easily build their own customized version of this shell extension.
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29. CyoHash
@sourceforge
CyoHash is a simple shell extension intended for end users/desktop. The tool is used from within Windows Explorer to calculate hashes or checksums of a file. CyoHash is a project hosted by SourceForge.net.
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30. HashMyFiles
@nirsoft
A small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system, HashMyFiles works on Windows 2000/XP/2003/Vista/Windows 7/Windows 8. The utility also allows you to copy the MD5/SHA1 hashes list into the clipboard or same them into a text/html/xml file.
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ntopng offers high-speed web-based traffic analysis and flow collection as the next generation of the original ntop. Based on libpcap and written in a portable way, ntopng virtually will run on every Unix platform, including MacOSX and Win32.
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32. UltraTech Knowledgebase Viewer
@Logik007
Andrew S. Baker’s homebase is the UltraTech Zone, and he has compiled a “public technology repository” within The UltraTech Knowledgebase and The Brainwave Consulting Technical Archive. Both sites contain an abundance of free information on a broad spectrum of computing topics including Windows Operating Systems, Capacity Planning, Server Virtualization, and more.
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33. BgInfo v4.20
@Sysinternals
BgInfo v4.20 helps you manage multiple computers because it automatically displays relevant information about a Windows computer on the desktop’s background. Get the computer name, IP address, service pack version, and more, plus enjoy the freedom to edit any field, font, and background color, all through BgInfo v4.20.
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MobaXTerm, “the complete toolbox for remote computing” is a session manager with all the network clients you could possibly need: RDP, VNC, SSH, telnet, rsh, FTP, SFTP, and SCMCP. As an enhanced terminal for Windows with an X11 server, a tabbed SSH client and several other remote computing network tools, MobaXTerm brings the necessary Unix commands to Windows desktop.
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35. TTY Plus
SysAdmins using PuTTY (the most popular SSH client for Windows) love it but hate having to start a new copy of it every time they open a new connection. TTY Plus’ MTPuTTY (Multi-Tabbed PuTTY) is a small utility that enables SysAdmins to use one tabbed GUI Interface for an unlimited number of PuTTY applications. Take the multiple windows out of your work and put them into separate tabs with MTPuTTY.
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MessenPass is a password recovery tool that reveals the passwords of several instant messenger applications, including MSN Messenger, Windows Messenger (in Windows XP), Yahoo Messenger (Versions 5.x and 6.x), and more. MessenPass relies on a user being logged in and having one of the programs with which it works remember one of your passwords.
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37. SuperPutty
A Windows application meant to simplify the use of the PuTTY SSH Client, SuperPutty is a window manager that allows users to embed the PuTTY windows inside a Windows form to create a tabbed interface. Thus, SuperPutty helps SysAdmins handle multiple connections with PuTTY much more easily.
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A free Android app, Rhybudd alerts you of Zenoss events as they happen. Even better, Rhybudd has the capability of being customized in a variety of ways to ensure that you get only the alerts you want.
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39. OMD – The Open Monitoring Distribution
OMD bundles Nagios with several important add ons and easily can installed on every major Linux distribution. The OMD team also provides prebuilt packages for all enterprise Linux distributions, as well as for some others, including Ubuntu.
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The Apache HTTP Server Project, a collaborative software development effort, is aimed at creating a commercial-grade and freely available source code implementation of an HTTP server. The project is part of the Apache Software Foundation, and hundreds of users have contributed ideas, code, and documentation to the project. With all of the contributions, some tools have been created for the Apache HTTP Server, including ApacheBench.
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Developed by Torsten Wittrock, WSUS Offline Update allows you to update any computer running Microsoft Windows and Office safely and quickly without an internet connection. While the open source project connected to the tool has changed names from “c’t offline update” and “DIY Service Pack,” it is being continued by Wittrock.
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42. mRemoteNG
@mRemoteNG
mRemoteNG is a utility to enhance mRemote, an open source, tabbed, multi-protocol, remote connections manager. View all of your remote connections in a simple, powerful tabbed interface with mRemoteNG.
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43. aria2
@sourceforge
A multi-protocol and multi-source command-line download utility, aria2 supports HTTP/HTTPS, FTP, BitTorrent and Metalink. aria2 is lightweight and has the ability to be manipulated with the built-in JSON-RPC and XML-RPC interfaces.
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Spiceworks helps SysAdmins handle all of your IT with a single integrated app. With network inventory and mapping, network monitoring and alerting, troubleshooting, and more, Spiceworks gives you all of the tools you need to make IT management more manageable.
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KeePass helps you manage your passwords securely as a free open source password manager. It allows users to put all your passwords in one database, which is locked with one master key file; you simply have to remember one master password or select the key file to unlock the entire database, which is encrypted using AES and Twofish.
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46. JiJi Self Service Password Reset
@JiJitech
JiJi Self Service Password Reset gives end-users the capability of securely resetting their own Active Directory passwords without needing to involve tech help desk professionals. Because end-user downtime and help desk staff time spent resetting forgotten or last passwords is reduced, JiJi Self Service Password Reset essentially helps organizations lower costs, improve security, and increase productivity.
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47. TeraCopy
@codesector
TeraCopy helps reduce the time spent copying several files over the network with newer versions of Windows. Designed to copy and move files at the highest maximum speed possible, TeraCopy skips bad files and then displays them at the end of the transfer, allowing users to see which files need attention. TeraCopy is free for non-commercial use only; commercial users need to purchase a license.
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48. ADManager Plus
@ME_ADSolutions
ADManager Plus is a Windows Active Directory Management and Reporting Solution that is simple and easy to use to AD Administrators and Help Desk Technicians with their daily activities. The software handles a broad range of complex tasks, with its centralized and intuitive web-based UI.
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