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IT Tools Every Sysadmin Should Know in 2022


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IT Tools Every Sysadmin Should Know in 2022



Wireshark is the world’s foremost network protocol analyzer. It lets you see what’s happening on your network at a microscopic level. It is the de facto standard across many industries and educational institutions.

Wireshark is cross platform and works on OS X, Windows and Unix.



Filezilla is an GPL licensed FTP client and Server. It’s ability to connect to SSH secured hosts makes it a great choice if you need to give access to client more comfortable with GUI than CLI interfaces.



Fiddler is a proxy server that is meant to run locally to allow for developers to debug web applications. If you have multiple different applications or processes that can modify the values in a form it’s great to be able to see the actual output as transmitted.

If you’re working with a remote API, you can also compose and replay requests as needed.

 Sysinternals Suite


The Sysinternals Suite is a collection of general sysadmin tools for file and disk, networking, process management, security and collecting system information on Windows hosts.

One of the most popular and immediately beneficial utility is Autoruns.exe which will identify programs that start automatically.



SSH users will be familiar with the frailty of their remote sessions, a single wifi hiccup and they go down. Mosh is a secure replacement protocol that allows for the resumption of sessions as well as generally improved performance. Mosh is available for almost every platform, including a Chrome plugin for even more portability.



Designed more for SSH tunnels than interactive sessions, Autossh will restart dropped SSH sessions and tunnels. 

If you’d like a perpetual session, use with “screen”.



Generate full command line commands and options for many Windows sysadmin commands. It is interactive documentation that you can copy and paste.



If you’re administering or provisioning a larger number of computers, it is very beneficial to create a master image and then push it to all of the target machines, which is exactly what the open source Clonezilla does. 

The multi-cast feature of Clonezilla SE let you update machines in massive parallel batches. 



A python based server cluster management tool, Clusto lets you maintain an abstracted interface for interacting with your infrastructure. 

Clusto stores data in any database that you can interact with via SQLAlchemy, easing your management as you can get started with anything you have in place.



Ansible bills itself as the simplest way to automate IT provisioning tasks. 

Ansible Playbooks are the programmatic method of bundling instructions to be run, which you can then replay on any number of servers you’re connecting to over SSH.



Chef helps automate your server infrastructure via Chef clients installed on each node in your network. Periodically the clients poll the central Chef server and check their internal config against the instructed configuration – if discrepancies are found it then runs the commands to bring them into compliance.

Chef’s constant compliance checking is very helpful in quickly recovering if manual changes are made by sysadmins.



Puppet allows for declarative configuration of servers via their ruby DSL. If you already know ruby it’s easy to dig into Puppet and manage any number of servers. 

If you want to get an easy taste for Puppet, they offer a preconfigured VM that you can play around with.



Dnsmasq is a much lighter weight DNS resolver for local networks than BIND, or other ‘heavyweight’ servers. It is ideally suited for use in low resource environments like routers and firewalls.

It caches requests locally but falls back to an upstream DNS provider.



Primarily used to report and process software bugs, Bugzilla has expanded to allow for quality assurance management and the submission and review of patches. 

Buzilla integrates with many source control systems, letting you setup two way communications so that you can close bugs with commits, etc.



Sysdig is an open source, system level management tool. It lets you capture, filter and save the different processes that are active within a Linux machine at any given point. 

Sysdig makes some common tasks, like tracking any file opened in a directory in real time trivially easy.Lua scripts can be used to modify and extend the core Sysdig functionality.


http://www.jam-software.com/treesize_free/Treesize is a NTFS file space viewer that helps visualize space usage in a Windows Explorer like view. 

Treesize works off of the Master File Table of the target machine, letting you read results faster and without the need for content read permissions.



An open source windows compression utility. 7-zip works extremely fast on even very large zip files and can produce self extracting archives in the 7z format. 



An excellent Open Source Windows text editor with regular expression support, syntax highlighting and a tabbed interface.

If you’re moving between machines, checkout Notepad++ Portable which you can run from a share or a USB drive.



An opensource password manager, KeePass lets you generate strong random passwords per site or application. Stored securely, KeePass lets you maintain secure passwords without have to remember hundreds of 20 character plus password or even worse – writing one down.

If you need to share your password file with others, or access it from multiple locations, keep it on a DataAnywhere share.



Often described as the ‘swiss-army’ knife of network utilities, netcat is tremendously useful for anything dealing with sending or receiving network port information.

Example: if you need a one-shot webserver on port 8080

{ echo -ne "HTTP/1.0 200 OK\r\nContent-Length: $(wc -c <some.file)\r\n\r\n"; cat some.file; } | nc -l 8080

Process Explorer


Track, identify, start and stop processes that need manipulation on a Windows machine. Additionally, it is a great way to track down memory leaks and find rogue processes. 

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