Authors are ordered by number of posts.
Timothy Warner (342)Timothy Warner is a Microsoft Cloud and Datacenter Management Most Valuable Professional (MVP) who is based in Nashville, TN. Check out his Azure and Windows Server video training at Pluralsight, and feel free to reach out to Tim via Twitter.
Wolfgang Sommergut (298)Wolfgang Sommergut has over 20 years of experience in IT journalism. He has also worked as a system administrator and as a tech consultant. Today he runs the German publication WindowsPro.de.
Brandon Lee (290)Brandon Lee has been in the IT industry 15+ years and focuses on networking and virtualization. He contributes to the community through various blog posts and technical documentation primarily at Virtualizationhowto.com.
Paul Schnackenburg (203)Paul Schnackenburg works part time as an IT teacher as well as running his own business in Australia. He has MCSE, MCT, MCTS and MCITP certifications. Follow his blog TellITasITis.
Vladan Seget (174)Vladan Seget is an independent consultant, professional blogger, vExpert 2009-2021, VCAP-DCA/DCD and MCSA. He has been working for over 20 years as a system engineer.
Adam Bertram (170)Adam Bertram is a 20-year IT veteran, Microsoft MVP, blogger, and trainer.
Guest Author (160)If you want to write a guest post on 4sysops contact us.
Joseph Moody (132)Joseph Moody is a network admin for a public school system and helps manage 5,500 PCs. He is a Microsoft Most Valuable Professional (MVP) in Cloud and Datacenter Management and blogs at DeployHappiness.com.
Kyle Beckman (115)Kyle Beckman works as a systems administrator in Atlanta, GA supporting Office 365 in higher education. He has 17+ years of systems administration experience.
Surender Kumar (86)Surender Kumar has more than twelve years of experience in server and network administration. His fields of interest are Windows servers, Active directory, PowerShell, web servers, networking, Linux, virtualization, and Kubernetes. He loves writing for his blog.
Sander Berkouwer (55)Sander Berkouwer is a Microsoft Certified Professional and a Microsoft Most Valuable Professional (MVP) with over a decade of experience in IT.
Baki Onur Okutucu (49)Onur is a DevOps Engineer and Subject Matter Expert for Azure, and PowerShell. He is the founder of Clouderz Ltd, a cloud consultancy based in London. For 15 years in a row, Microsoft has recognized him as an MVP (Most Valuable Professional). You can follow Onur on Twitter: @BakiOnur.
Jeffery Hicks (45)Jeff Hicks is a long-time Microsoft MVP specializing in PowerShell and automation. He creates PowerShell content for Pluralsight and blogs regularly at https://jdhitsolutions.com/blog. Jeff's latest project is a premium content newsletter at jeffhicks.substack.com Follow him on Twitter as @jeffhicks.
Jim Jones (40)Jim Jones has been a SysAdmin for 15 years and is currently working as a Sr. Network Administrator in West Virginia, USA. Honored to be elected a vExpert and Veeam Vanguard, Jim can be found on Twitter @k00laidIT and at his personal site, koolaid.info.
Alexander Weiss (38)Alexander Weiß currently heads up an IT department, and my main interests include IT governance, cloud computing and IT architecture. Read my blog about Amazon cloud computing.
Robert Pearman (38)Robert is a small business specialist from the UK and currently works as a system administrator. He was a Microsoft MVP for eight years and has worked as a technical reviewer for Microsoft Press. You can follow Robert on Twitter and in his blog.
Leos Marek (37)Leos has started in the IT industry in 1995. For the past 15+ years he focused on Windows Server, VMware administration and security. Recently, Leos is focusing on automation via Ansible. He is also a Certified Ethical Hacker.
Aaron Denton (31)Aaron Denton has been working in IT for 10 years. He is a CCNP, MCITP, Enterprise Admin and Enterprise Messaging Administrator on Exchange 2007. Follow his blog itprostuff.
David Stein (31)David is an author and consultant, working for Endurance IT Services in Virginia Beach, Virginia, specializing in Microsoft enterprise systems and Business Process Automation.
Anil Erduran (31)Anil Erduran is a principal consultant and subject matter expert for Hitachi Data Systems EMEA, based in London, UK. He is also a dual category Microsoft Most Valuable Professional in Cloud and Datacenter Management and Microsoft Azure. Anil can be found on Twitter @anil_erduran.
Mohamed Wali (31)Mohamed is a cloud infrastructure expert with experience in engineering and implementation in AWS and Azure. He currently works as a Cloud Infrastructure Architect at Amazon Web Services.
Alex Chaika (29)Alex Chaika is a Microsoft Certified Solution Expert (MCSE) with more than 15 years of experience in IT systems engineering. He currently focuses on PowerShell and VMware PowerCLI.
Dan Franciscus (26)Dan Franciscus is a systems engineer and VMware Certified Professional (VCP) specializing in VMware, PowerShell, and other Microsoft-based technologies. You can reach Dan at his blog or his Twitter at @dan_franciscus.
Jason Coltrin (24)Jason Coltrin has been working in IT for more than 17 years. He holds an MCSE 2003 Security+ plus various Palo Alto and SonicWall firewall certifications. He also is an avid Linux administrator and currently works in the finance Industry.
Geoff Kendal (23)Geoff Kendal is a Windows/Linux systems administrator, scripter and problem solver, with over 12 years experience, based in Leeds, UK.
James Rankin (23)James is a consultant from the UK, specializing mainly in end-user computing, Active Directory and client-side monitoring. When not consulting for james-rankin.com, he can often be found blogging, writing technical articles and speaking at conferences and user groups.
Mike Taylor (22)Mike has been working in IT for 20+ years. He is a Windows endpoint engineer turned cloud consultant, scripter and OS deployment engineer based in the UK. He has a special interest in automation, security and PowerShell.
Jörgen Nilsson (22)Jörgen is a principal consultant at Onevinn in Sweden. His work focuses on enterprise client management and system management. He is a Microsoft Certified Trainer and a Microsoft Most Valuable Professional (MVP) in Enterprise Mobility. He also speaks at events such as Microsoft TechDays, Microsoft Management Summits, and TechEd.
Josh Rickard (22)Josh's primary focus is in Windows security and PowerShell automation. He is a GIAC Certified Windows Security Administrator (GCWN) and GIAC Certified Forensic Analyst (GCFA). You can reach Josh at MSAdministrator.com or on Twitter at @MS_dministrator.
Sitaram Pamarthi (20)Sitaram Pamarthi is working as a Windows Engineer and his special fields of interest are PowerShell, Active Directory, Exchange, and virtualization.
Andrew Jacops (20)Andrew Jacops is a system/network administrator with over ten years experience managing Windows environments and the network infrastructures they run on.
Mike Kanakos (20)Mike Kanakos is a Cloud and Datacenter Microsoft MVP, tech blogger and PowerShell community leader. He writes about infrastructure management and cloud automation. You can follow Mike on his blog https://www.commandline.ninja or on Twitter at @MikeKanakos.
Roland Eich (20)Roland Eich is an IT specialist for system integration and has been working in IT for over 10 years as a system administrator. His areas of expertise are Windows Server and IT infrastructures. Certifications: MCITP EA, MCSA and MCSE.
Travis Roberts (19)Travis Roberts is a Cloud Infrastructure Architect at a Minnesota based consulting firm. Travis has 20 years of IT experience in the legal, pharmaceutical and marketing industries, and has worked with IT hardware manufacturers and managed service providers. Travis has held numerous technical certifications over the span of his career from Microsoft, VMware, Citrix and Cisco.
Krishna Kumar (18)Krishna Kumar specializes in PowerShell, Exchange and Active Directory. Follow his blog SMTP Port 25.
Jeff Brown (18)Jeff is a systems administrator and cloud engineer with over a decade of experience in server and application administration. He has managed a wide range of technologies in his career, including Windows Server, Microsoft 365. and Azure. Jeff has also created video-based training for Cybrary and PluralSight. You can follow Jeff on his blog at jeffbrown.tech, or feel free to contact him on Twitter at @jeffwbrown.
Vignesh Mudliar (18)Vignesh has been working in the IT industry for the past 10 years. His main areas of focus are Microsoft 365, Exchange Online, PowerShell, Teams, SharePoint, Microsoft 365 Security, and GoLang. Follow his weblog.
James Bannan (17)James Bannan is Senior Technical Consultant who specializes in deployment, virtualization and management.
Justin Shin (16)I have been a Windows administrator for eight years and currently focus on Group Policy, backup, and IIS/Apache administration.
Alexander Pazik (16)Alexander is a Systems Engineer and IT Project Manager with a strong background in Active Directory, PowerShell, System Center, and VMware. You can connect with him on LinkedIn and learn more about the services offered by his consulting company Alxco Consulting
Prateek Singh (14)Prateek Singh is an infrastructure developer, an avid PowerShell blogger, and a community contributor. In 2017, FeedSpot recognized his blog RidiCurious.com as among the "Top 50 PowerShell blogs in the world." All of his PowerShell projects and modules are open-sourced at GitHub, and you can reach out to him on Twitter at @SinghPrateik.
Sami Laiho (13)Sami Laiho has been a Microsoft Most Valuable Professional (MVP) since 2011 and one of the world's leading IT experts for Windows and security. He has been teaching OS troubleshooting, management, and security since 1996. In 2019 TiVi-magazine chose Sami as one of the top 100 influencers in IT in Finland. For more info, go to https://samilaiho.com.
Tim Buntrock (12)Tim Buntrock is one of three enterprise administrators for the Active Directory service of a "global player" in the contact center business. He is a certified engineer for MCTS, MCITP, MCSA and MCPS.
Ruben Zimmermann (12)Ruben is an infrastructure specialist with strong backround in Active Directory, PKI, and System Center Operations Manager. He automates in VBS, PowerShell and C#.
You can follow him on Twitter @Ruben8Z.
Jasmin Kahriman (12)Jasmin Kahriman is an IT Pro with 15 years of experience. He is deep into data center monitoring, product and customer advocacy, training, and blogging. Check out his blog TechWithJasmin.com, and feel free to connect with Jasmin via LinkedIn.
Emanuel Halapciuc (11)Emanuel is an IT consultant who has worked for 20 years in the industry. He is currently involved in a deployment project for the European Commission and focuses on Active Directory, Group Policy, Azure, and automation with PowerShell.
Edem Afenyo (10)Edem works as a consulting sysadmin for SMEs and DevSecOps professional, where he primarily focuses on Windows, Linux, VMware, and KVM virtualization environments. He has experience with Python and the container ecosystem.
Hitesh Jethva (10)Hitesh is a technical writer and DevOps engineer with more than 15 years of experience in IT. He focuses on cloud computing, DevOps, Linux, Kubernetes, Docker, security, and databases.
David O´Brien (9)David has been a consultant for over 10 years and reinvented himself a couple of times, always staying up to date with the latest in technology around automation and the cloud. He is a multi-year Microsoft MVP for Azure, a cloud architect at XIRUS in Australia, a regular speaker at conferences, and IT trainer.
Mohammed Raffic (8)Mohammed Raffic Kajamoideen is a subject matter expert in VMware and Microsoft virtualization, a vExpert 2014 to date, a VCIX-NV, vSAN Specialist, VCAP4/5-DCA, VCP, CCA, and MCSA. He blogs at vmwarearena.com, which is ranked as one of the top 25 Virtualization blogs. It can be found on Twitter at @vmwarearena.
Avi (8)Avi is a tech enthusiast with expertise in trending technologies, such as DevOps, cloud computing, and big data. He is passionate about learning cutting-edge technologies and sharing his knowledge with others.
Brandon Olin (7)Brandon is a Cloud Architect and veteran Systems Engineer with a penchant for PowerShell, DevOps processes, and open-source software. You can reach Brandon at devblackops.io or on Twitter @devblackops.
Riccardo Bicelli (7)Riccardo is a system administrator and software developer for small and mid-size businesses in Italy.
Evi Vanoost (7)Evi Vanoost is the Director of IT Infrastructure for the Office of Research at the University of Rochester. He has over 20 years of experience in IT. With his team, Evi supports thousands of systems.
Stéphane van Gulick (6)Stéphane is an IT engineer from Switzerland, a PowerShell Most Valuable Professional (MVP) and coorganizer of the French PowerShell User Group. He blogs at PowerShellDistrict.com.
Luc Fullenwarth (6)Luc is working as a system administrator since 1999 at Alcatel-Lucent, at HP, and currently for an European institution. He focuses on Active Directory, Group Policy, security and PowerShell.
Matt McElreath (6)Matt McElreath is a DevOps Engineer concentrating on automating cloud infrastructure, Infrastructure as Code (IaC), Terraform and Terraform Cloud, Azure and more. You can follow Matt on Twitter at @mmcelreath.
John Kull (5)John has been a CCNA—Network and Telecom Architect working in IT for over 22 years. He currently resides in the sunny and colorful Western Slope of Colorado.
Krishnamoorthi Gopal (5)Krishna is working as a Senior System Administrator for a managed IT Service provider. He has 10 years of IT experience in the insurance and healthcare industries. Krishna focuses on Windows and Active Directory administration and works with various other technologies such as VMware, Azure, Hyper-V, and PowerShell.
Benjamin Bürk (5)Benjamin Bürk is a senior systems engineer who has been managing IT infrastructures for companies since 2002. His focus is on server operations and especially on Remote Desktop Services (RDS) environments. Further competences are unified communications, virtualization, and Active Directory management. He holds MCSA 2008 and 2012 certifications.
Dan Greenhaus (5)Dan is an IT risk & information security analyst for a global financial company, where he is responsible for infrastructure vulnerability assessments. His primary areas of interest are Active Directory administration and the automation of repetitive tasks using PowerShell.
Welf Alberts (5)Welf has been working as a system administrator since the year 2000. He focuses on IT security for the Windows platform.
Ben Norcutt (4)Ben Norcutt is a Microsoft Certified IT Professional (MCITP) with 13 years experience in IT administration in educational establishments.
Jose Sanchez (4)Jose Sanchez has 10+ years of hands-on experience in VMware virtualization, storage design, Microsoft technologies and network infrastructure.
Venkat Sri (4)Venkat Sri is a senior Windows system engineer who specialises in PowerShell, Active Directory and virtualization. On 4sysops, he shares useful PowerShell scripts for system administrators.
Andrew Fitzgerald (4)Andrew Fitzgerald (MCSE, MCSA,CCNA,VCP,SNIA) has worked as an Infrastructure Consultant for 20 years for some of the biggest firms in London. Follow his blog Network Angel.
Micah Rairdon (4)I am a PowerShell fanatic currently working in Windows client management at Haworth based out of Holland, MI. I tinker around and document my findings at tiberriver256.github.io and you can find me on Twitter @tiberriver256.
Bryce McDonald (4)Bryce is an expert systems engineer with the majority of his experience in Powershell, automation, DevOps, and cloud infrastructure. He is based in Kansas City and you can reach him on twitter @_brycemcdonald or on his blog brycematthew.net.
Thomas Mitchell (4)Tom is an IT veteran with 25+ years of systems engineering and infrastructure experience. His core skillset features in-depth knowledge of numerous technologies, most notably Microsoft Exchange / O365, Active Directory, and Microsoft Azure. Tom is also a prolific content producer for several IT websites and training platforms. His home base online is www.thomasmitchell.net.
Steve Buchanan (4)Steve Buchanan is a group manager of cloud transformation/DevOps with Avanade/Accenture, a seven-time Microsoft MVP, and author of several technical books focused on cloud and data center management. He has been in IT for 18+ years in positions ranging from infrastructure architect to IT manager and has presented at several technical conferences, including MMS, Microsoft Ignite, BITCon, Experts Live Europe, and OSCON. Reach him on Twitter @buchatech.
Philip Lorenz (4)Philip Lorenz has several years' experience in datacenter system administration. He focuses on managing Windows Server, VMware products and Microsoft Azure.
Thomas Joos (4)Thomas Joos is a consultant for medium and large enterprises in the areas of security, Active Directory, cloud, and AI. He has written over 100 specialized books on IT topics for various publishers and regularly publishes on various portals and magazines. In addition, he works as a trainer for LinkedIn Learning. You can reach Thomas through his blog and X (formerly Twitter).
Ed Fisher (3)Ed Fisher is an information systems manager and blogger.
Simon Simcic (3)Simon Simcic works as a systems engineer for one of largest slovenian Systems integrations firms. He is especially interested in working with remote access solutions.
Karthick Jokirathinam (3)Karthick Jokirathinam has more than 12 years of experience in enterprise client management and works as a consultant. He creates content and contributes to the community through various blogs. You can follow him on Twitter.
Mark Wilson (2)Mark Wilson is an accomplished infrastructure architect, with recent experience in technology leadership and IT strategy roles,.
Vincent Boudreau (2)I currently work for an enterprise that has about 3000 AD users and I am managing 160 of them.
Bret Fisher (2)Bret Fisher has been a Windows admin for over 15 years. He has nearly 30 Microsoft certifications as well as previous Cisco, Citrix, and SANS Institute for security.
Marcel Küppers (2)Marcel Küppers has been working for more than 25 years as systems engineer, consultant and infrastructure architect for international corporations. Marcel is an MS Specialist and MCTS for Hyper-V/SCVMM, MCSE, MCITP, MCSA.
Asser Hassan (2)Asser Hassan is a Vancouver-based DevOps engineer with more than 12 years experience in IT. He is a *nix expert, CLI enthusiast, virtualization and cloud professional (focus on AWS & Azure) and works as a cloud consultant.
Derek Schauland (2)Derek Schauland has been working in IT for more than 20 years. For almost as long, he has been authoring technical articles to help others learn about new technologies. Derek is a multiyear Microsoft MVP in Cloud and Datacenter Management.
Anthony Howell (2)Anthony has been an IT pro since 2009, and he now works as a PowerShell consultant who focuses on automation. You can find Anthony at theposhwolf.com or on Twitter at @theposhwolf.
Paul Middleton (2)Paul Middleton has been an IT professional for the past 20 years. Starting out as an IT support analyst in the UK, he moved onto being a systems engineer specializing in Microsoft core technologies such as Active Directory and Exchange. He is now based in the US and manages an infrastructure team supporting a large multinational enterprise. He is a subject matter expert in many infrastructure technologies.
Bill Kindle (2)Bill is a former career systems administrator turned IT security engineer with more than 17 years' experience. He has worked for both small businesses and large multinational enterprises. Bill has been both an author and editor for The PowerShell Conference Book Volume 2 and 3, vExpert, presenter and blogger. His current role focuses on security, automation, and systems administration.
Joshua Lambert (2)Josh Lambert is a senior system administrator with experience in manufacturing systems and IT infrastructure in both the public and private sectors. His current work focuses on security and compliance, risk management, and security automation.
Kostas Tzouvaras (2)Kostas has worked in IT since 2004 and has gained experience in areas such as Windows Servers, security monitoring of critical systems, and disaster recovery. Presently, he focuses on virtualization, security, and PowerShell.
Mohammed Kaif Joey (2)Mohammed Kaif is an MCSE®, Microsoft 365, and Azure Cloud Certified IT Consultant with over 17 years of experience in enterprise client management. He is currently working as a Technical Architect, providing modern workplace solutions to several clients.
Dustin Miller (1)Dustin Miller is an IT admin and help desk manager. He works a lot with IIS.
Ingmar Koecher (1)Ingmar Köcher is the CEO and founder of NETIKUS.NET ltd, the maker of EventSentry.
Ilija Brajkovic (1)Ilija Brajkovic is a tech writer from Croatia.
Mark Phelps (1)Mark Phelps is an IT admin who focuses on Active Directory and Exchange since 1999.
Andreas Kroschel (1)Andreas Kroschel is a former IT journalist and works now as an IT admin in Germany.
Chris Rich (1)Chris Rich has over 17 years experience in the IT industry.
Bryan Campbell (1)Bryan Campbell is a Windows admin managing a network with a mixed variety of VMware and Citrix VDI.
Mark Mears (1)Mark Mears has been in the IT world since the 1980s and is currently working as a consultant for a local company in Virginia Beach, Virginia.
Alessandro Cardoso (1)Alessandro Cardoso is a Microsoft Most Valuable Professional (MVP) in Cloud and Datacenter Management, is a speaker in key events in Australia and New Zealand and holds MCSE, MCSA, and MCT certifications.
Marius Sandbu (1)Marius Sandbu is a Microsoft MVP for Azure, VMware vExpert, Citrix CTA, Veeam Vanguard and works as a cloud architect in Norway.
Bastian A. Wieczorek (1)Bastian is a senior IT consultant with more than 20 years of experience in IT administration. He focuses on helping organizations plan and operate enterprise collaboration solutions.
Karim Buzdar (1)Karim Buzdar holds a degree in telecommunication engineering and is a Microsoft Certified Solutions Associate (MCSA) for Server Infrastructure. As an IT engineer and technical author, he focuses on Microsoft Directory Services and PowerShell. You can reach Karim on LinkedIn.
Swapnil Kambli (1)Swapnil Kambli is a cloud consultant and trainer specializing in cloud adoption, migration, support, and optimization. He has 14 years of experience advising enterprises in areas ranging from containers to server management, virtualization to cloud computing, automation to DevOps, system administration to site-reliability engineering, and systems management to governance.
Matt Browne (1)Matt Browne is an Infrastructure Consultant with over 20 years' experience in IT. His focus is on building cloud infrastructure in Azure, as well as PowerShell and DevOps. You can follow Matt on his own blog on Twitter at @MattBrowne.
Tim Ferrill (1)Tim Ferrill is a freelance writer and author living in Southern California. Having spent the last two decades in the IT industry, Tim has experience in many areas, including storage, security, mobile, small business, networking, server administration, data analysis, scripting, and web design. Tim also holds several certifications in system and enterprise administration from CompTIA, Microsoft, and IBM, including Security+, MCSE on Windows Server 2003, and MCITP: Enterprise Administrator for Windows Server 2008 R2. Tim can be found on Twitter as @tferrill.
Sujith Rajendran (1)Sujith is the lead cloud administrator and coach for a team of cloud engineers working in the healthcare industry. He focuses on AWS, Azure, networking security, monitoring, and backup.
Pablo Brincat (1)Pablo has 15+ years of experience in information technology, leadership training, and innovative solution engineering. He currently works as Chief Technology Officer and Lead Developer.
Dmitry Nefedov (1)Dmitry Nefedov is an IT specialist from Moscow who focuses on system automation.
Balwant Chandel (1)Balwant is an integration engineer who focuses on Windows servers, cloud computing, identity management and security.
Andrea Borghi (1)Andrea Borghi is an experienced hands-on technology manager with three decades of experience in IT in solutions architecture, site reliability, systems engineering, and DevOps within diverse industries.
Imran Khan (1)Imran Khan is a system administrator working for a multinational IT solutions provider. He focuses on Windows, networking, and security.
Andrej Radonic (1)Andrej is as an IT-Journalist and a board member of the interSales AG. For more than 20 years he focuses IT solutions for medium-sized companies, covering virtualization, open source and e-commerce.
Temitope Odemo (1)Temitope has over 10 years' experience as a system administrator and currently works as a QA Engineer. He focuses on software quality assurance, software testing, security, and network management.
Massimo Maggioni (1)Massimo is an automation and robotics engineer who has worked in the IT industry for 16 years. He focuses on network IT infrastructure management.
Amr Essam (1)Amr is a DevOps and cloud engineer who enjoys creating informative and engaging technical content and sharing it with the community.
