Avvio rapido
— Connettiti alla tua rete da qualsiasi luogo
- Iniziare — Install openvpn software and make your first vpn connection
- Come utilizzare l'accesso remoto sicuro — Lets remote staff reach private servers through one encrypted vpn tunnel.
- — Proteggi i tuoi dispositivi connessi — Keeps cameras, sensors and controllers off the open internet.
- Crea un accesso sicuro alle applicazioni SaaS — Sends SaaS traffic through one fixed address your vendors can allowlist.
- Come utilizzare le reti da sito a sito — Joins two offices into one network without paying for leased lines.
- How to Use Enforce Zero Trust Access — Limits each group to the exact systems it needs, nothing more.
- How to Use DNS Security and Content Filtering — Blocks malicious and unwanted domains before anyone loads them.
- — Monitorare e proteggere il traffico delle applicazioni cloud — Shows who touches which cloud app, and blocks the rest.
Tempo necessario: 5 minuti per ogni servizio
In questa guida troverete anche: Consigli professionali | Errori comuni | Risoluzione dei problemi | Prezzi | Alternative
Perché fidarsi di questa guida
I’ve run OpenVPN for three years across laptops, routers and a rented Linux box. Every step here comes from my own openvpn installation, not vendor screenshots.
OpenVPN is the openvpn protocol most paid VPN apps quietly run underneath.
You can use it two ways.
Import an ovpn file from a VPN provider, or run your own vpn server.
This guide walks through both, step by step.
Tutorial su OpenVPN
This How to Use OpenVPN tutorial covers install, configuration files, certificates and daily use.
OpenVPN
Run your own encrypted VPN tunnel on hardware you control. OpenVPN Access Server is free for three simultaneous client connections, with no card needed to start.
Introduzione a OpenVPN
Prima di utilizzare qualsiasi funzionalità, completa questa configurazione iniziale.
It takes about ten minutes on a fresh machine.
Step 1: Install OpenVPN
Download the openvpn package for your system from the official site.
On Windows the installer drops files into Program Files and adds the OpenVPN GUI.
Most linux distributions install openvpn with a single apt or dnf command.
✓ Punto di controllo: Running openvpn –version confirms you have installed openvpn correctly.
Step 2: Get Your Configuration File
Every vpn service hands you an ovpn file, or you build your own.
Most providers ship several ovpn configuration files, one per city.
Self-hosting? Copy the sample server configuration file from the docs folder.
That sample server template already carries sane defaults for a routed vpn.
On Linux, everything lives under /etc/openvpn once you configure openvpn.
That folder holds the server.conf file, your certificate files and keys.
Creating configuration files by hand works, but the sample saves an hour.
Here’s what the working folder looks like:
✓ Punto di controllo: Your config files sit together in one folder you can find again.
Passaggio 3: Connessione iniziale
Import the profile into OpenVPN Connect, or place it in the client folder.
On Windows, right-click the openvpn gui and run it as administrator.
Then pick the profile and click Connect.
Watch the log window as it scrolls past.
Older guides mention a now authenticated certificate header line.
That only means your openvpn configuration file passed its checks.
✅ Fatto: The log ends with initialization sequence completed. You’re connected.
How to Use OpenVPN Secure Remote Access Tool
Accesso remoto sicuro lets you give staff an encrypted vpn tunnel into private servers from any location.
Ecco come usarlo passo dopo passo.
Step 1: Add Your Users
Open the Access Server admin panel in your browser.
Add each teammate under User Management and set a password.
Step 2: Send Out the Profile
Click the user, then download their client configuration file.
Share that .ovpn file over a private channel, never email.
Keep all client configuration files in one folder for easy revocation.
Ecco come si presenta:
✓ Punto di controllo: The profile downloads as a single .ovpn file with keys inside.
Passaggio 3: Connetti e verifica
Import the profile into OpenVPN Connect and hit connect.
Check your public ip address on iplocation.net to confirm the swap.
✅ Risultato: Your team now reaches internal apps over an encrypted openvpn connection.
💡 Consiglio da professionista: Name each client configuration file after the person, not the device. Revoking access later takes seconds.
How to Use OpenVPN Secure IoT Communicator
Comunicazione IoT sicura lets you put cameras, sensors and controllers on a private encrypted link.
Ecco come usarlo passo dopo passo.
Step 1: Create a Device Group
Make a separate group for hardware, apart from human users.
Give it read-only access to the subnet it needs.
Step 2: Pin Static Addresses
Use client specific rules to hand each device a fixed address.
Fixed ip addresses make firewall logs readable months later.
Ecco come si presenta:
✓ Punto di controllo: Each device shows the same address on every reconnect.
Step 3: Load the Profile on Device
Copy the ovpn file to the device and start the openvpn service.
Set it to reconnect on boot so nothing drops silently.
✅ Risultato: Your hardware talks home over a private tunnel instead of open ports.
💡 Consiglio da professionista: Give IoT dispositivi their own client keys. One compromised sensor should never expose the rest.
How to Create OpenVPN Secure Access to SaaS Applications
Crea un accesso sicuro alle applicazioni SaaS lets you route SaaS traffic through one fixed public ip address you can allowlist.
Ecco come usarlo passo dopo passo.
Step 1: Note Your Gateway Address
Find the public ip address of your vpn server machine.
That single address becomes your front door to every SaaS vendor.
Step 2: Allowlist It With Vendors
Paste the address into each SaaS admin panel under IP restrictions.
Most tools call this trusted IP ranges or network allowlisting.
Ecco come si presenta:
✓ Punto di controllo: Logging in from outside the tunnel now gets refused.
Step 3: Force Traffic Through the Tunnel
Turn on redirect gateway so all traffic uses the vpn connection.
Split tunnelling here would break the allowlist you just built.
✅ Risultato: Stolen passwords stop working unless the attacker is inside your vpn.
💡 Consiglio da professionista: Keep a second gateway address on standby. If your host rotates addresses, logins break immediatamente.
Come utilizzare la rete OpenVPN site-to-site
Networking da sito a sito lets you join two offices into one private network without leased lines.
Ecco come usarlo passo dopo passo.
Step 1: Pick Non-Overlapping Subnets
Each site needs its own range, such as 10.8.1.0 and 10.8.2.0.
Matching ranges are the number one cause of routing failures.
Step 2: Set the Gateway Role
Mark one site as gateway inside the openvpn server configuration.
This runs a routed vpn, which suits office links better than bridging.
Ecco come si presenta:
✓ Punto di controllo: A ping from one office reaches a printer at the other.
Step 3: Push the Routes
Add push route lines so each side learns the other subnet.
Restart openvpn on both ends to apply the change.
✅ Risultato: Both offices share files and printers as if they sat in one building.
💡 Consiglio da professionista: Document the subnet map before you build. Future you will thank present you during outages.
How to Use OpenVPN Enforce Zero Trust Access
Applica l'accesso Zero Trust lets you limit every user group to the exact systems it needs.
Ecco come usarlo passo dopo passo.
Step 1: Map Groups to Systems
List which teams truly need billing, staging or production access.
Most people need far less than they currently hold.
Step 2: Write the Access Rules
Set per-group subnet rules in the admin panel or the server config file.
Deny everything first, then open only what the group requires.
Ecco come si presenta:
✓ Punto di controllo: A test account can reach its own subnet and nothing else.
Step 3: Add a Second Factor
Turn on multi-factor authentication alongside your server and client certificates.
Certificates prove the machine, MFA proves the person.
✅ Risultato: One stolen laptop no longer opens your whole network.
💡 Consiglio da professionista: Review group rules every quarter. Access creep happens quietly as people change roles.
How to Use OpenVPN DNS Security and Content Filtering
DNS Sicurezza and Content Filtering lets you block malicious domains before anyone on the tunnel loads them.
Ecco come usarlo passo dopo passo.
Step 1: Push Your Resolvers
Add push dhcp-option DNS lines to send dns servers to clients.
Without this, laptops leak lookups to whatever café router they meet.
Step 2: Choose Filter Categories
Switch on categories such as malware, phishing and adult content.
Start narrow, then widen once support tickets stay quiet.
Ecco come si presenta:
✓ Punto di controllo: Your resolver appears in the client log, not the local router.
Step 3: Test a Blocked Domain
Visit a known test domain from a connected client machine.
A block page confirms filtering runs inside the tunnel.
✅ Risultato: Every connected device inherits the same filtering, even on albergo Wifi.
💡 Consiglio da professionista: Whitelist your own domains first. Filters love to block internal tools on day one.
How to Use OpenVPN SaaS Protector
ti permette di monitorare e proteggere tutto il traffico delle applicazioni cloud tramite la tua VPN. lets you watch and lock down how your team signs into cloud apps.
Ecco come usarlo passo dopo passo.
Step 1: Turn On Access Logging
Enable connection logging for client connections in the admin panel.
You want names, times and addresses, not just totals.
Step 2: Review Weekly Patterns
Scan for logins at odd hours or from unexpected countries.
Odd patterns show up long before a breach does.
Ecco come si presenta:
✓ Punto di controllo: The log shows each session with a user name attached.
Step 3: Cut Off Stale Accounts
Revoke the client certificate the day someone leaves.
Revocation beats password changes because the key file dies too.
✅ Risultato: You can answer who accessed what, and when, in under a minute.
💡 Consiglio da professionista: Export logs monthly to cold storage. Auditors ask for history your dashboard no longer keeps.
Dopo aver testato OpenVPN per oltre due anni, ecco i miei migliori consigli.
After three years of configuring openvpn, these are the habits that stuck.
This is the terminal view I keep open while testing:
Commands Worth Memorising
| Azione | Scorciatoia |
|---|---|
| Connect from terminal | sudo openvpn –config client.ovpn |
| Restart openvpn service | sudo systemctl restart openvpn@server |
| Watch the live log | sudo journalctl -fu openvpn@server |
| Check the tunnel interface | ip addr show tun0 |
Funzionalità nascoste che la maggior parte delle persone non nota
- Client specific rules: Drop a file named after the client into the ccd folder. Configuring client specific rules lets you pin routes per user.
- Accedi a un pannello di controllo basato su Telnet per gestire da remoto i processi OpenVPN in esecuzione. Add a management line to the server config file, then telnet in to watch client connect events live.
- The vars file: Edit vars inside the easy-rsa directory once, and every certificate signing request inherits your details automatically.
- Offline signing: Keep the ca private key on an air-gapped machine, or a dedicated key server. Your server key then never travels.
Errore n. 1: utilizzare TCP anziché UDP
Mistake #1: Emailing the Private Key
❌ Sbagliato: Sending certificate files and the private key as an email attachment.
✅ A destra: Hand over key files through a gestore di password or an encrypted share.
Mistake #2: Copying a Config Without Reading It
❌ Sbagliato: Pasting a random openvpn server configuration file from a forum thread.
✅ A destra: Start from the official sample configuration files, then change one line at a time.
Mistake #3: Forgetting IP Forwarding
❌ Sbagliato: Building the tunnel, then wondering why no website loads through it.
✅ A destra: Turn on ip forwarding and add the firewall rule before you blame the openvpn configuration.
Problema: la connessione è scaduta
Mancata corrispondenza dei certificati tra client e server oppure certificati scaduti.
Causa: The client cannot reach the vpn server, or tls authentication keys do not match.
Aggiustare: Confirm port 1194 UDP is open, then check both ends share the same tls-crypt key.
Problem: Connected but No Internet
Causa: Traffic enters the tunnel and stops, usually missing routing or dns servers.
Aggiustare: Enable ip forwarding, add a NAT rule, and push a resolver to clients.
Problem: Certificate Verify Failed
Causa: The server certificate expired, or the ca server signed with a different root.
Aggiustare: Reissue the client certificate from the same CA, then restart openvpn on both sides.
📌 Nota: è uno strumento VPN open-source che crea tunnel crittografati per proteggere il traffico di rete.
Che cos'è OpenVPN?
OpenVPN is open-source vpn software that builds an encrypted tunnel using SSL/TLS.
Think of it as a private hallway between two buildings on a public street.
The same openvpn software runs as both vpn server and vpn client.
Guarda questa breve panoramica:
Include le seguenti caratteristiche principali:
- Accesso remoto sicuro: Lets remote staff reach private servers through one encrypted vpn tunnel.
- Proteggi dispositivi intelligenti e sensori con tunnel di rete crittografati. Keeps cameras, sensors and controllers off the open internet.
- Create Secure Access to SaaS Applications: Sends SaaS traffic through one fixed address your vendors can allowlist.
- Rete sito-sito: Joins two offices into one network without paying for leased lines.
- Enforce Zero Trust Access: Limits each group to the exact systems it needs, nothing more.
- DNS Security and Content Filtering: Blocks malicious and unwanted domains before anyone loads them.
- Monitora e proteggi tutto il traffico delle applicazioni cloud attraverso il tunnel. Shows who touches which cloud app, and blocks the rest.
It relies on a public key infrastructure, so both sides check each other before trusting anything.
That means server and client certificates, signed by one authority you control.
Per una recensione completa, consulta la nostra Ecco quanto costerà OpenVPN nel 2026:.
Prezzi di OpenVPN
Uso personale con un massimo di 2 connessioni
| Piano | Prezzo | Ideale per |
|---|---|---|
| Gratuito | $0 | Home labs and up to three connections |
| Crescita | $7/mese | Small teams that need more seats |
| Impresa | Costume | Large fleets and compliance needs |
Prova gratuita: Yes — the community edition stays free forever on your own hardware.
Garanzia di rimborso: Not needed on Free; paid plans bill per connection each month.
💰 Miglior rapporto qualità-prezzo: Free — a $5 cloud box plus the openvpn package covers most households.
OpenVPN contro le alternative
How does OpenVPN compare? Here is the landscape:
| Attrezzo | Ideale per | Prezzo | Valutazione |
|---|---|---|---|
| OpenVPN | Self-hosted control | $7/mese | ⭐ 4.6 |
| NordVPN | Speed and server count | $ 3,39/mese | ⭐ 4.8 |
| ExpressVPN | Simple apps everywhere | 4,99 $/mese | ⭐ 4.7 |
| PureVPN | Budget long-term plans | $2.11/mo | ⭐ 4.3 |
| SurfsharkVPN | Dispositivi illimitati | 2,19 dollari al mese | ⭐ 4.6 |
| ProtonVPN | Privacy and free tier | 4,49 $/mese | ⭐ 4.7 |
| PrivadoVPN | Cheapest paid entry | 1,11 dollari al mese | ⭐ 4.1 |
| CyberGhost | Server di streaming | 2,19 dollari al mese | ⭐ 4.4 |
Scelte rapide:
- Il migliore in assoluto: OpenVPN — you own the vpn server machine and every key.
- Miglior budget: PrivadoVPN — cheapest way to skip running your own server.
- Ideale per principianti: ExpressVPN — one button, no configuration file to touch.
- Ideale per la privacy: ProtonVPN — audited apps and a usable free plan.
🎯 Alternative a OpenVPN
Cerchi alternative a OpenVPN? Ecco le migliori opzioni:
- 🚀 Nordvpn: Huge server network and NordLynx speeds, though you never touch the underlying config file.
- 🌟 ExpressVPN: The most forgiving apps on every platform, with its own Lightway protocol instead of openvpn.
- 💰 PureVPN: Long multi-year deals at low monthly cost, plus optional dedicated ip addresses.
- ⚡ SurfsharkVPN: Unlimited simultaneous devices on one account, which suits families and multiple clients.
- 🔒 ProtonVPN: Swiss privacy law, open-source apps and a free tier with no dati cap.
- 👶 PrivadoVPN: Very cheap entry pricing and a simple interface for first-time vpn client users.
- 🎯 CyberGhost: Servers labelled by streaming service, so you skip the guesswork entirely.
Per l'elenco completo, consultare il nostro Alternative a OpenVPN guida.
⚔️ Confronto tra OpenVPN
Here is how OpenVPN stacks up against each competitor:
- OpenVPN vs Nordvpn: Nord wins on speed and setup time. OpenVPN wins if you want the server under your own roof.
- OpenVPN contro ExpressVPN: Express is easier for travel. OpenVPN costs nothing once your box runs.
- OpenVPN contro PureVPN: PureVPN is cheaper per month. OpenVPN gives full control of logging and keys.
- OpenVPN vs SurfsharkVPN: Surfshark covers unlimited devices. OpenVPN covers unlimited devices too, if you self-host.
- OpenVPN contro ProtonVPN: Proton is the better ready-made privacy vpn service. OpenVPN is the better toolkit.
- OpenVPN contro PrivadoVPN: Privado wins on price alone. OpenVPN wins on transparency and revisione contabile sentieri.
- OpenVPN contro CyberGhost: CyberGhost is built for streaming. OpenVPN is built for infrastructure.
Hai imparato a utilizzare tutte le principali funzionalità di OpenVPN:
✅ Comunicazione IoT sicura
- ✅ Accesso remoto sicuro
- ✅ Accesso SaaS
- ✅ Create Secure Access to SaaS Applications
- ✅ Rete sito-sito
- ✅ Enforce Zero Trust Access
- ✅ DNS Security and Content Filtering
- OpenVPN è uno dei protocolli VPN più sicuri disponibili. Utilizza la crittografia AES-256-GCM, supporta l'autenticazione basata su certificati e funziona su codice open source che i ricercatori di sicurezza possono
Passo successivo: Scegli una funzionalità e provala subito.
La maggior parte delle persone inizia con l'accesso remoto sicuro.
Ci vogliono meno di cinque minuti.
Domande frequenti
Come si usa OpenVPN come VPN?
Install the openvpn client, import an ovpn file from your vpn provider, then connect. All traffic then travels inside an encrypted tunnel to the vpn server.
Come si avvia OpenVPN?
On Windows, launch the OpenVPN GUI as administrator and pick your profile from the system tray applet. On Linux, run sudo systemctl start openvpn@server.
Posso usare OpenVPN gratuitamente?
Yes. The community edition is free and open source. Access Server is also free for three simultaneous client connections, which covers most home setups.
Come utilizzare OpenVPN su Windows?
Install openvpn software, copy your .ovpn configuration file into the config folder inside Program Files, then right-click the tray icon and choose Connect.
Qual è la differenza tra VPN e OpenVPN?
A VPN is the general idea of a private tunnel. OpenVPN is one specific openvpn protocol and program that creates that tunnel using SSL/TLS.
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