Cisco Duo vs. OpenVPN Access Server Comparison


Cisco Duo Cisco	OpenVPN Access Server OpenVPN	+	+
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		Related Products Auth0 Auth0 takes a modern approach to Identity, providing secure access to any application, for any user. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. Auth0 is part of Okta, The World’s Identity Company™. Auth0 lets you quickly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control. Authenticate users across all applications with a customized, secure, and standards-based single login. Universal Login connects users to a central authorization server. Credentials aren’t transferred across sources, which boosts security and protects against phishing and credential stuffing attacks. OAuth 2.0 recommends that only external user agents (like the browser) be used by native applications for authentication flows. Auth0’s Universal Login achieves this while enabling SSO. 1,082 Ratings Visit Website ManageEngine ADSelfService Plus ADSelfService Plus is an on-premises access management solution that caters to businesses across various industries, such as IT, banking, engineering, education, aviation, and telecommunications. Key features include: 1. Self-service password resets and account unlocks: Users can reset their passwords in AD and unlock their domain accounts from a web browser. 2. MFA: Machine logins, VPN and OWA logins, and cloud app logins can be secured using MFA. 3. Password synchronizer and SSO: Users can log in to multiple apps using one unified identity via SSO and real-time password synchronization. 4. Password policy enforcer: Admins can configure custom password policies to enforce strong password creation. 5. Password expiration notifier: Admins can send end users password expiration notifications via SMS or email. 6. Directory self-update: Users can update their AD attribute information through the directory self-update feature. 178 Ratings Visit Website FusionAuth FusionAuth is a modern, developer-focused identity and access management platform built to give you full control over your authentication stack. Whether you’re building a startup app or managing enterprise-scale infrastructure, FusionAuth delivers all the must-have features — from login and SSO to advanced protocols like OAuth2, OIDC, SAML, and WebAuthn — in a self-hostable or cloud-native package. Designed with developers in mind, FusionAuth integrates seamlessly with any language, framework, or architecture. Every capability is API-first and built for extensibility, so you can tailor authentication workflows without getting locked into rigid, inflexible systems. FusionAuth supports all the key use cases — user registration, multi-factor authentication (MFA), passwordless login, role-based access control, and more — while helping you stay compliant with GDPR, HIPAA, PCI, and other regulatory standards. 192 Ratings Visit Website Keeper Security Keeper Security is transforming the way people and organizations around the world secure their passwords and passkeys, secrets and confidential information. Keeper’s easy-to-use cybersecurity platform is built on a foundation of zero-trust and zero-knowledge security to protect every user on every device. Keeper’s solution deploys in minutes and seamlessly integrates with any tech stack to prevent breaches, reduce help desk costs and ensure compliance. Trusted by millions of individuals and thousands of organizations globally, Keeper is the leader for best-in-class password and passkey management, secrets management, privileged access, secure remote access and encrypted messaging. Protect what matters at KeeperSecurity.com. 1,812 Ratings Visit Website Uniqkey Uniqkey: Protect every login. Access with confidence. Uniqkey is Europe’s trusted password and access management platform - purpose-built for companies that demand security, simplicity, and control. Engineered by European cybersecurity experts, our platform combines military-grade encryption with an effortless user experience. We remove complexity from everyday workflows, helping employees stay secure without slowing them down. From auto-filling 2FA codes to streamlining access across your cloud environment, Uniqkey keeps security frictionless and productivity high. With real-time visibility across your entire infrastructure, IT teams gain complete control over access rights, employee activity, and security scores - empowering them to defend against threats and drive compliance with confidence proactively. Seamlessly integrated with Microsoft and other core systems, Uniqkey makes provisioning and offboarding fast, automated, and secure. 182 Ratings Visit Website 1Password 1Password is a secure, scalable, and easy-to-use password manager that's trusted by the world's leading companies. Using 1Password makes it easy for your employees to stay safe online. Once 1Password is part of their workflow, good security habits will become second nature. 1Password Advanced Protection is now available with 1Password Business. Set Master Password policies, enforce two-factor authentication team-wide, restrict access with firewall rules, review sign-in attempts and require your team to use the latest version of 1Password. Our award-winning apps are available for Mac, iOS, Linux, Windows, and Android. 1Password syncs seamlessly across devices, so your employees always have access to their passwords. When everyone uses 1Password, your risk goes down — and your productivity goes up. 16,918 Ratings Visit Website ManageEngine ADManager Plus ADManager Plus is a simple, easy-to-use Windows Active Directory (AD) management and reporting solution that helps AD administrators and help desk technicians in their day-to-day activities. With a centralized and intuitive web-based GUI, the software handles a variety of complex tasks like bulk management of user accounts and other AD objects, delegates role-based access to help desk technicians, and generates an exhaustive list of AD reports, some of which are an essential requirement to satisfy compliance audits. This Active Directory tool also offers mobile AD apps that empower AD admins and technicians to perform important user management tasks, on the move, right from their mobile devices. Create multiple users and groups in Office 365, manage licenses, create Exchange mailboxes, migrate mailboxes, set storage limits, add proxy addresses, and more. 716 Ratings Visit Website Iru Iru (formerly Kandji) is an all-in-one, AI-powered security and compliance platform designed to simplify IT management and strengthen enterprise protection. Built on the Iru Context Model, it unifies identity, endpoint, and compliance into a single intelligent system that understands users, devices, and applications in context. With passwordless workforce identity, advanced endpoint detection, and automated compliance, Iru delivers both security and efficiency without the complexity of multiple tools. Its integrated approach enables IT teams to secure access, prevent threats, and maintain continuous audit readiness—all from one intuitive platform. Trusted by over 5,000 companies including Plaid, Notion, Airbus, and Vercel, Iru transforms how modern businesses manage digital trust. The result is reduced IT workload, improved employee experience, and enterprise-grade protection built for the AI era. 1,389 Ratings Visit Website Josys Josys is a modern AI-native identity security and governance platform. Enterprise AI adoption has made identity the fastest-growing attack surface — and the hardest to govern. Josys discovers, governs, and secures every identity - human, machine, and AI agent - across every application in the enterprise. Built on policy-led governance, Josys lets security and IT teams define access policies once and enforce them autonomously: risk is surfaced, access is controlled, and identity threats are remediated in real time, without manual oversight. Trusted by over 1,000 organizations and MSPs worldwide, Josys turns identity from the fastest-growing attack surface into an autonomously governed advantage. For more information, visit josys.com. 263 Ratings Visit Website Proton Pass Proton Pass for Business is a secure, end-to-end encrypted password manager built for teams that prioritize privacy, compliance, and control. Safely store and share passwords, passkeys, secure notes, aliases, and credit card details with zero-knowledge encryption, ensuring only your organization can access sensitive data. Manage user access with advanced admin controls, activity logs, and enforced password policies, and simplify onboarding and offboarding with secure vault sharing. Created by the team behind Proton Mail, Proton Pass integrates seamlessly across browsers and devices, offering autofill, password generation, email alias management, and dark web monitoring. With Swiss-based privacy, open-source transparency, and strong end-to-end encryption, Proton Pass for Business helps organizations reduce risk, prevent data breaches, ensure compliance, and boost team productivity without compromising security or user experience. 31,996 Ratings Visit Website
About Cisco Duo is a cloud-based identity security solution that protects organizations from identity-based threats and boosts workforce productivity. Trusted by over 40,000 organizations worldwide, Duo delivers an exceptional access management experience across all users, devices, and applications, making access to resources secure, seamless, and easy. Duo with Cisco Identity Intelligence provides deep visibility across your identity ecosystem, adding a powerful security layer to any identity infrastructure. Offer users a world-class access experience through Duo Passport to eliminate MFA friction and fatigue without sacrificing security. To stop threats, Duo verifies user identities with strong authenticators including Duo passwordless, Verified Duo Push with number matching, and phishing-resistant factors like biometrics and FIDO2 security keys. Paired with deep insights into users’ devices, Duo gives you the control to adaptively limit access based on device health or user risk.	About OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) and business VPN solution that gives organizations full control over their own secure network. It's software organizations deploy directly into their own environment — on-premises hardware or their own cloud account on AWS, Azure, Google Cloud, or others — with tunnel traffic flowing directly between users and the server. With Access Server Link, teams can go from zero to a fully configured deployment in minutes: point-and-click setup across AWS, Azure, and GCP, automatic SSL certificate provisioning and renewal, and a web-based admin portal for managing users, certificates, and access — no SSH or manual DNS work required. Access is granted per application and per identity using domain names rather than broad network-level access, so users only reach what they're explicitly permitted to, and lateral movement is structurally blocked.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported
Audience Organizations of all sizes searching for a complete authentication solution	Audience SMBs and Enterprises looking for a Zero Trust VPN as a foundation of their network security
Support Phone Support Supported 24/7 Live Support Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $3 per user per month Free Version Supported Free Trial Supported	Pricing Free Up to 2 connections Dependent on the number of connections and monthly or annually. If annual, under 100 connections, $7 per connection per month. If monthly, under 100 connections, $9 per connection per month. Over 100 connections will get lower pricing. Free Version Supported Free Trial Supported
Reviews/Ratings Overall 4.8 / 5 ease 4.7 / 5 features 4.6 / 5 design 4.7 / 5 support 4.9 / 5 Read all reviews	Reviews/Ratings Overall 5.0 / 5 ease 4.5 / 5 features 5.0 / 5 design 5.0 / 5 support 5.0 / 5 Read all reviews
Pros & Cons from Real Users Pros Definitely made me feel like my information was secure and that no one could sign into my stuff. It is easy to use and quick to confirm any time you log into an account of yours. I like the ability to have true Multi Factor Authentication using this software, which isn’t possible using text or email. Duo was a relatively pain free implementation that quickly enhanced our ability to authenticate and access resources remotely. Duo is a fantastic little program that keeps everything safe. I love that you don't have to take a phone call or type in a code to log in. You just click a button and you're done. We use Duo on just about everything in our organization and so far we haven't had any problems. Love the option of adding multiple phone numbers, easy to use and easy to understand, and easy to adapt to whatever situation you might have. Cons Even though I do like my accounts being secure at times I do feel annoyed constantly have to have two (Duo) logins. It can be challenging when you change phones to use Duo. There was some enhancements to the app through out the time that we have had Duo and it has introduced some minor annoyances into the overall workflow of using it. But generally nothing too disastrous. You have to have a smart phone to do this effectively or you have to go to a phone call and code punching. My only other complaint is that that accept and deny buttons are in the opposite of what you would naturally expect them to be. So I constantly deny my access all the time. The only feature that was not my favorite was the Frequently asked questions, or the help section, it doesn't show many options.	Pros & Cons from Real Users Pros Open Source. lots of customization options. Create your own VPN profile using free networks available on sites such as vpnbook. Also available as a service - pay as you go model. Cross Platform. The software made the process of setting up a Virtual Private Network so much easier. It has a lot of configuration options available including the use of DNS servers, user permissions and more. OpenVPN has support that will help with any issues needed. Cons Initial setup is difficult - creating profiles, installing certificate (at least on windows). It still requires a fair bit of work to actually set up the Virtual Private Network.
Training Documentation Supported Webinars Supported Live Online Supported In Person Supported	Training Documentation Supported Webinars Supported Live Online Supported In Person Not Supported
Company Information Cisco Founded: 2010 United States duo.com	Company Information OpenVPN Founded: 2001 United States openvpn.net
Alternatives Auth0 Okta	Alternatives Cloudbrink
Uniqkey	Private Internet Access (PIA) Private Internet Access
Beyond Identity	NordVPN Nord Security
IBM Verify IBM	UTunnel VPN and ZTNA Secubytes LLC
Ping Identity View All	Check Point SASE Check Point Software View All
Categories Authentication Supported Biometric Authentication Supported Customer Identity and Access Management (CIAM) Supported Endpoint Protection Supported Extended Access Management (XAM) Supported Identity and Access Management (IAM) Supported Identity Management Supported Identity Security Posture Management (ISPM) Supported Multi-Factor Authentication (MFA) Supported Password Management Supported Passwordless Authentication Supported Risk-Based Authentication Supported Self-Service Password Reset (SSPR) Supported Single Sign On Supported User Provisioning and Governance Supported Zero Trust Network Access (ZTNA) Supported Zero Trust Security Supported	Categories IT Management Supported IT Security Supported IT admins & managers love Access Server - OpenVPN can help make network security and secure remote access easier — whether you have years of experience as an IT Admin or are just beginning your career. If you’re a Linux person, Access Server is for you. Access Server is an easy to deploy, cost-effective way to bolster your network security in a self-hosted environment. Network Security Supported OpenVPN’s scalable, easy-to-deploy solutions are built on our time-tested, industry standard open source protocol. With the ability to split traffic and only tunnel sensitive data, you won’t sacrifice internet performance or speed for security. With OpenVPN, you can say goodbye to your legacy VPN and traditional hardware and architecture that made it difficult to scale and grow. You’ll be able to harness next-gen VPN technology that grows with you and protects your business no matter where your team is working, whether from a tablet at their kitchen table, a laptop in a coffee shop, or a mobile phone at their desk. Proxy Servers Supported OpenVPN supports connections through an HTTP proxy, with the following authentication modes: no proxy authentication, basic proxy authentication, and NTLM proxy authentication. Secure Remote Access Supported With OpenVPN’s multi-layered solution, you can ensure that your mobile workforce is logging into corporate networks and third-party cloud services safely and securely. Minimize your attack surface & increase internet security levels - only authenticated users and compliant devices get access to authorized applications. VPN Supported OpenVPN business solutions provide secure, scalable, and flexible virtual private networking for organizations of all sizes. Built on the trusted OpenVPN protocol, they enable encrypted remote access, site-to-site connectivity, and seamless cloud integration. With centralized management, granular access controls, and support for modern authentication, businesses can protect sensitive data while ensuring employees and partners connect safely from anywhere. OpenVPN Access Server scales from small teams to enterprise deployments, offering reliability, strong encryption, and easy deployment across on-premises, cloud, or hybrid environments. Trusted worldwide, OpenVPN combines open-source transparency with enterprise-grade features. Zero Trust Network Access (ZTNA) Supported We make ZTNA a reality for your business. Access Server and CloudConnexa® can be used to implement a zero trust network access solution that secures your network resources while limiting access to only what is necessary. Zero Trust Security Supported Transition to a Zero Trust framework with OpenVPN Access Server. Our self-hosted solution gives businesses of all sizes the ability to enforce zero trust essentials. Transition beyond protecting only what is inside of your corporate perimeter, and reduce your attack surface. With Access Server, you can protect workers using home and public WiFi networks, and SaaS applications, outside your network perimeter. We also provide all the tools and capabilities necessary for building a strong zero trust network to block or significantly mitigate attacks.
Show More Features Authentication Features Biometric Supported Credential Management Supported Knowledge-Based Authentication Supported Mobile Authentication Supported Multifactor Authentication Supported Out-of-Band Authentication Supported Policy Management Supported Self Service Portal Supported Single Sign On Supported Social Sign On Not Supported Customer Identity and Access Management (CIAM) Features Access Certification Not Supported Access Management Supported Analytics / Reporting Not Supported Automatic User/Device Recognition Supported Behavioral Analytics Not Supported Credential Management Supported Data Security Supported Multi-Factor Authentication (MFA) Supported Privacy / Consent Management Not Supported Real Time Notifications Not Supported Self-Service Portal Supported Single Sign On Supported User Provisioning Supported Identity Management Features Access Certification Supported Compliance Management Not Supported Multifactor Authentication Supported Password Management Supported Privileged Account Management Supported Self-Service Access Request Supported Single Sign On Supported User Activity Monitoring Supported User Provisioning Not Supported Password Management Features Credential Management Supported Multifactor Authentication Supported Password Generator Not Supported Password Reset Not Supported Password Synchronization Supported Single Sign On Supported User Management Supported Self-Service Password Reset (SSPR) Features Access Control Supported Alerts / Notifications Supported Application Security Not Supported Compliance Management Supported Credential Management Supported Employee Directory Not Supported Group Passwords Supported Password Database Supported Password Management Supported Reminders Not Supported Reporting / Analytics Not Supported Single Sign On Supported Two-Factor Authentication (2FA) Supported Single Sign On Features Biometric Supported Credential Management Not Supported Identity Federation Not Supported Multifactor Authentication Supported Password Management Not Supported Policy Management Supported Social Sign On Not Supported User Management Supported User Provisioning and Governance Features Access Governance Supported Access Verification Workflow Not Supported Audits / Reports Not Supported Automatic Provisioning / Deprovisioning Not Supported Delegated Access Authorization Not Supported Identity Synchronization Not Supported Lifecycle Management Not Supported Multi-Factor Authentication (MFA) Supported Password Management Not Supported Policy Enforcement Not Supported Single Sign-On (SSO) Supported User Self-Service Not Supported	Show More Features IT Management Features Capacity Monitoring Not Supported Compliance Management Not Supported Event Logs Not Supported Hardware Inventory Not Supported IT Budgeting Not Supported License Management Not Supported Patch Management Not Supported Remote Access Supported Scheduling Not Supported Software Inventory Not Supported User Activity Monitoring Not Supported Network Security Features Access Control Supported Analytics / Reporting Supported Compliance Reporting Not Supported Firewalls Not Supported Internet Usage Monitoring Not Supported Intrusion Detection System Not Supported Threat Response Not Supported VPN Supported Vulnerability Scanning Not Supported VPN Features Anonymous Browsing Not Supported DNS Leak Protection Not Supported For Digital Security Supported For Financial Security Supported For Gaming Supported For Streaming Supported Kill Switch Not Supported Multi-Language Not Supported Multi-Protocol Not Supported Peer-to-Peer Not Supported Policy Management Supported Remote Access Supported Web Inspection Not Supported White Label Not Supported
Integrations AccessOwl Supported Akitra Andromeda Supported Azure Marketplace Supported Okta Supported OneLogin Supported AWS Directory Service Not Supported Abstract Security Supported Cmd Supported Expel Supported Google Authenticator Not Supported Inuvika OVD Enterprise Supported It'sMe Not Supported Jellyfish Supported Keycloak Not Supported Liongard Supported Rambox Supported Tromzo Supported Truto Supported VegaCrypt Supported purpose.jobs Supported Show More Integrations View All 113 Integrations	Integrations AccessOwl Supported Akitra Andromeda Supported Azure Marketplace Supported Okta Supported OneLogin Supported AWS Directory Service Supported Abstract Security Not Supported Cmd Not Supported Expel Not Supported Google Authenticator Supported Inuvika OVD Enterprise Not Supported It'sMe Supported Jellyfish Not Supported Keycloak Supported Liongard Not Supported Rambox Not Supported Tromzo Not Supported Truto Not Supported VegaCrypt Not Supported purpose.jobs Not Supported Show More Integrations View All 59 Integrations
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