How to Install OpenConnect VPN Server on Ubuntu 22.04 (2023)

This page

  1. prerequisites
  2. Step 1 - Configure the Firewall
  3. Step 2 - Install Git
  4. Step 3 - Install OpenConnect
  5. Step 4 - Generate SSL certificates
  6. Step 5 - Configure OpenConnect
  7. Step 6 - Start the OpenConnect Server
  8. Step 7 - Create VPN accounts
  9. Step 8 - Enable IP Forwarding
  10. Step 9 - Configure IP Masquerading
  11. Step 10 - Connect using the OpenConnect Client
  12. Conclusion

OpenConnect VPN also known asnoticeis a free, open-source VPN solution with enterprise-grade performance and features. It is based on the Cisco AnyConnect VPN protocol, which is widely used in the corporate sector. In this tutorial, you will learn how to install OpenConnect VPN server on an Ubuntu 22.04 machine. You will also learn how to use an OpenConnect client to connect to the server.


  • A server running Ubuntu 22.04.

  • A non-root user with sudo privileges.

  • A fully qualified domain name (FQDN) such

  • Make sure everything is up to date.

    $ sudo apt update$ sudo apt upgrade
  • Few packages your system needs.

    $ sudo apt install wget curl nano software-properties-common dirmngr apt-transport-https gnupg2 ca-certificates lsb-release ubuntu-keyring unzip -y

    Some of these packages may already be installed on your system.

Step 1 - Configure the Firewall

The first step is to configure the firewall. Ubuntu comes with ufw (Uncomplicated Firewall) by default.

Make sure the firewall is running.

$ sudo ufw status

You should get the following output.

Status: inactive

Allow the SSH port so that the firewall does not interrupt the current connection when activating it.

$ sudo ufw enable OpenSSH

Allow HTTP and HTTPS ports as well.

$ sudo ufw allow http$ sudo ufw allow https

Enable Firewall

$ sudo ufw enableCommand can break existing ssh connections. Continue with the (y|n) operation? yFirewall is active and activated at system startup

Check the firewall status again.

$ sudo ufw status

You should see similar output.

Status: activeTo Action From-- ------ ----OpenSSH ALLOW Anywhere80/tcp ALLOW Anywhere443 ALLOW AnywhereOpenSSH (v6) ALLOW Anywhere (v6)80/tcp (v6) ALLOW Anywhere (v6)443 (v6) ALLOW Em qualquer lugar (v6)

Step 2 - Install Git

Step 3 - Install OpenConnect

Ubuntu 22.04 ships with an older version (1.1.3) of OpenConnect. If you are satisfied with that, you can install it using the following command.

$ sudo apt install ocserv

However, for this tutorial, we will be installing the latest version (1.1.6) of OpenConnect. For that, we'll need to build it from source.

Install the necessary dependencies to compile the source code.

$ sudo apt install -y libgnutls28-dev libev-dev libpam0g-dev liblz4-dev libsecomp-dev \libreadline-dev libnl-route-3-dev libkrb5-dev libradcli-dev \libcurl4-gnutls-dev libcjose-dev libjansson-dev libprotobuf-c-dev \libtalloc-dev libhttp-parser-dev protobuf-c-compiler gperf \nuttcp lcov libuid-wrapper libpam-wrapper libnss-wrapper \libsocket-wrapper gss-ntlmssp haproxy iputils-ping freeradius \gawk gnutls-bin iproute2 yajl-tools tcpdump autoconf automake

clone theocserv git repository.

$ git clone

Switch to the cloned directory.

(Video) AnyConnect or OpenConnect VPN Server Installation on Ubuntu

$ cd ocserv

Generate configuration scripts.

$ autoconf -fvi

Compile the source code. Ignore any obsolete warnings.

$ ./configure && do

Install ocserv.

$ sudo make install

The files will be installed in/usr/local/bine/usr/local/sbindirectories. Copy the systemd service file.

$ sudo cp doc/systemd/standalone/ocserv.service /etc/systemd/system/ocserv.service

Open the service file for editing.

$ sudo nano /etc/systemd/system/ocserv.service

Change the path to the ocserv binary in the following line

$ ExecStart=/usr/sbin/ocserv --foreground --pid-file /run/ --config /etc/ocserv/ocserv.conf

to the next.

$ ExecStart=/usr/local/sbin/ocserv --foreground --pid-file /run/ --config /etc/ocserv/ocserv.conf

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Reload the system daemon.

$ sudo systemctl daemon-reload

Step 4 - Generate SSL certificates

We need to install Certbot to generate the SSL certificate. You can install Certbot using the Ubuntu repository or get the latest version using the Snapd tool. We will be using the Snapd version.

Ubuntu 22.04 comes with Snapd installed by default. Run the following commands to ensure your version of Snapd is up to date.

$ sudo snap install core && sudo snap refresh core

Install Certbot.

$ sudo snap install --classic certbot

Use the following command to ensure that the Certbot command can be executed by creating a symbolic link to the/usr/bindirectory.

$ sudo ln -s /snap/bin/certbot /usr/bin/certbot

There are two possibilities when it comes to generating an SSL certificate. If you don't have a web server running on your system, you can use the unattended method to generate the certificate. Run the following command to create the certificate using the standalone plugin for Certbot.

$ sudo certbot certonly --standalone --agree-tos --no-eff-email --staple-ocsp --preferred-challenges http -m[email protected]-d

The above command will download a certificate for the/etc/letsencrypt/live/vpn.example.comdirectory on your server.

Then if you have a server running on your system you can use the webroot plugin or the Nginx or Apache plugins if you are using them. For Nginx or Apache servers, just run the command below.

$ sudo certbot certonly --nginx --agree-tos --no-eff-email --staple-ocsp --preferred-challenges http -m[email protected]-d


$ sudo certbot certonly --apache --agree-tos --no-eff-email --staple-ocsp --preferred-challenges http -m[email protected]-d

If you have a different server, we will need to use the webroot plugin. To do this, create the web root directory.

$ sudo mkdir -p /var/www/ocserv

Set the server as the owner of the web root directory. In our case, we are usingwww dataas server user.

$ sudo chown www-data:www-data /var/www/ocserv -R

Then configure your server to serve the domainvpn.example.comno/var/www/ocservdirectory. Restart the server. Then generate the certificate using the following command.

$ sudo certbot certonly --webroot --agree-tos --no-eff-email --staple-ocsp --preferred-challenges http -m[email protected]-d

Check the Certbot renewal scheduler service.


$ sudo systemctl list-timers

You will findsnap.certbot.renew.serviceas one of the services scheduled to run.

NEXT LEFT LAST UNIT PAST ACTIVE WEDNESDAY 2023-04-19 10:31:47 UTC 2h 55min left Wed 2023-04-19 03:31:58 UTC 4h 3min ago ua-timer.timer ua-timer.serviceWed 2023- 04-19 12:02:42 UTC 4h 26min left Wed 2023-04-19 03:19:20 UTC 4h 16min ago motd-news.timer motd-news.serviceWed 2023-04-19 18:19:56 UTC 10h left Wed 2023- 04-19 07:19:52 UTC 16min ago apt-daily.timer apt-daily.serviceWed 2023-04-19 22:51:00 UTC 15h left n/a n/a snap.certbot.renew.timer snap .certbot. renew.service

Test the process to verify that the SSL renewal is working fine.

$ sudo certbot renew --dry-run

If you don't see any errors, you're all set. Your certificate will automatically renew.

Step 5 - Configure OpenConnect

If you installed ocserv using APT, the configuration file should already be available on/etc/ocserv/ocserv.conflocation. But if you created the package from source, we need to copy the configuration file.

Create the directory for the configuration file.

$ sudo mkdir /etc/ocserv

Copy the config file.

$ sudo cp /home/username/ocserv/doc/sample.config /etc/ocserv/ocserv.conf

Open the file for editing.

$ sudo nano /etc/ocserv/ocserv.conf

Change theauthenticationparameter value to the following. This will allow users to use separate VPN accounts.

auth = "simples[passwd=/etc/ocserv/ocpasswd]"

By default, OpenConnect uses TCP and UDP port 443. We will only be using the TCP port for connection, so disable the UDP port by commenting it out.

tcp-port = 443#udp-port = 443

If you have a web server running on port 443, change the TCP port value by changing the value.

tcp port = 8443

Then find the variablescrt-servereserver keyand change their values ​​as follows.

server-cert = /etc/letsencrypt/live/ = /etc/letsencrypt/live/

Set the maximum number of allowed clients. Default value is 16. Set to 0 for unlimited.

maximum clients = 16

Set the number of devices a user can use at the same time. Default value is 2. Set to 0 for unlimited.

max-same-customers = 2

By default, OpenConnect sends keepalive packets every 9 hours (32,400 seconds). That's a very high value. Set it to 60 seconds to reduce the chance of your VPN connection dropping.

stay alive = 60

Change the value oftry-mtu-discoveryforTRUEto enable MTU discovery. It can optimize VPN performance.

try-mtu-discovery = true

Configure how long a client can be idle before being disconnected by uncommenting the following variables. If you want the client to stay connected indefinitely, leave it as it is.


Set the default domain name for OpenConnect VPN.

default domain =

Change the default IPv4 setting to avoid IP address collision. we are going to use10.10.10.0like the value.

rede ipv4 =

Uncomment the following line to tunnel all DNS queries through the VPN.

tunnel-all-dns = true

Change the DNS resolver to Google DNS. Add the second entry as well.

dns = =

Comment out all route parameters by adding the hash symbol (#) in front of it.

(Video) How to Install OpenVPN on Ubuntu (self-hosted VPN)

#route = = = fef4:db8:1000:1001::/64#route = default# Subsets of the above routes that will not be routed by # the server.#no-route =

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Step 6 - Start the OpenConnect Server

Start the OpenConnect VPN server.

$ sudo systemctl start ocserv

Check the status of the service.

$ sudo systemctl status ocserv

You will get similar output.

? ocserv.service - OpenConnect SSL VPN server Loaded: loaded (/etc/systemd/system/ocserv.service; disabled; vendor default: enabled) Active: active (running) since Thu 2023-04-20 08:52:18 UTC; 2s ago Docs: man:ocserv(8) Main PID: 19965 (ocserv-main) Tasks: 2 (limit: 1026) Memory: 1.4M CPU: 9ms CGroup: /system.slice/ocserv.service ??19965 ocserv- main ??19966 ocserv-sm Apr 20 08:52:18 openconnect ocserv[19965]: note: ignoring configuration option 'pid-file'Apr 20 08:52:18 openconnect ocserv[19965]: note: vhost: default: setting 'plain ' as primary authentication methodApr 20 08:52:18 openconnect ocserv[19965]: error connecting to socket sec-mod '/var/run/ocserv-socket.a4413bc9': No such file or directoryApr 20 08:52:18 openconnect ocserv [19965]: note: setting 'file' as supplementary configuration option Apr 20 08:52:18 openconnect ocserv[19965]: listening (TCP) at .Apr 20 08:52:18 openconnect ocserv[19965 ]: listening (TCP) on [::]:443...Apr 20 08:52:18 openconnect ocserv[19966]:ocserv[19966]:sec- mod: reading supplementary configuration files Apr 20 08:52:18 openconnect ocserv[19966]: sec-mod: reading supplemental configuration filesApr 20 08:52:18 openconnect ocserv[19966]: ocserv[19966]: sec-mod : sec-mod initialized (socket: /var/run/ocserv-socket .a4413bc9.0) Apr 20 08:52:18 openconnect ocserv[19966]: sec-mod: sec-mod initialized (socket: /var/run /ocserv-socket.a4413bc9.0)

If you see the error related to connecting tosec-mod socket, ignore this. It's normal. It will initialize the file if it doesn't find it.

Step 7 - Create VPN accounts

You can create VPN accounts using theocpasswdUtility. Run the following command to create a new VPN account.

$ sudo ocpasswd -c /etc/ocserv/ocpasswd username Enter password: Retype password:

The password will be saved in/etc/ocserv/ocpasswdfile. To reset the password foruser name, run the above command again. Run the above command with a different user to create another account.

Step 8 - Enable IP Forwarding

In order for the VPN server to route packets between the client and the Internet, you need to enable IP forwarding by running the following command.

$ echo "net.ipv4.ip_forward = 1" | sudo tee /etc/sysctl.d/60-custom.conf

Run the following commands to allow the TCP BBR algorithm to increase TCP speed.

$ echo "net.core.default_qdisc=fq" | sudo tee -a /etc/sysctl.d/60-custom.conf$ echo "net.ipv4.tcp_congestion_control=bbr" | sudo tee -a /etc/sysctl.d/60-custom.conf

Make the changes permanent using the following command.

$ sudo sysctl -p /etc/sysctl.d/60-custom.conf

Step 9 - Configure IP Masquerading

The next step is to configure IP masquerading on the firewall so that the VPN server works as a virtual router for clients. Find the server's primary network interface name.

$ ip addr

You will get similar output.

1: lo:mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0. 0.1/8 lo scope host valid_lft forever preferred_lft forever inet6 ::1/128 valid_lft scope host forever preferred_lft forever2: enp1s0:mtu 1500 qdisc fq qlen group default UP state 1000 link/ether 56:00 :04:67:7e:79 brd ff:ff:ff:ff:ff:ff inet metric 100 brd scope dynamic global enp1s0 valid_lft 66999sec lft_preferred 66999sec inet6 2a05:f480:1400:23 81:5400 :4ff:fe67:7e79/64 global dynamic scope mngtmpaddr noprefixroute valid_lft 2591657sec lft_preferred 604457sec inet6 fe8 0::5400:4ff:fe67:7e79/64 link do scope valid_lft forever preferred_lft forever

In our case,enp1s0is the name of the interface. Add the iptables command to a UFW configuration file by opening it for editing.

$ sudo nano /etc/ufw/before.rules

Add the following lines at the end of the file. To replaceenp1s0in code with your network interface.

# NAT table rules*nat:POSTROUTING ACCEPT [0:0]-A POSTROUTING -s -o enp1s0 -j ​​MASQUERADE# End each table with the line 'COMMIT' or these rules will not be processedCOMMIT

Locate the following lines in the file.

# ok código icmp para FORWARD-A ufw-before-forward -p icmp --icmp-type destination-unreachable -j ACCEPT-A ufw-before-forward -p icmp --icmp-type time-exceeded -j ACCEPT-A ufw-before-forward -p icmp --icmp-type parameter-problem -j ACCEPT-A ufw-before-forward -p icmp --icmp-type echo-request -j ACEITAR

Paste the following lines after it.

# allow forwarding to trusted network-A ufw-before-forward -s -j ACCEPT-A ufw-before-forward -d -j ACCEPT

How to Install OpenConnect VPN Server on Ubuntu 22.04 (1)

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Restart the firewall.

$ sudo systemctl reiniciar ufw

You can check the Masquerade rule using the following command.

$ sudo iptables -t nat -L POSTROUTING

You will get the following output.

(Video) Openconnect VPN Server (OCSERV) Setup - Linux/Debian

Chain POSTROUTING (policy ACCEPT)target prot opt ​​source destinationMASQUERADE all -- anywhere

Step 10 - Connect using the OpenConnect Client

We will install the OpenConnect Client on an Ubuntu 22.04 machine. Run the following command to install the client.

$ sudo apt install openconnect

Then connect to the VPN server using the following command. O-bflag causes the client to run in the background as soon as the connection is established.

$ sudo openconnect -b

You will be asked to enter your VPN username and password. Enter the credentials created in step 7.

POST to SSL negotiation with Connected to HTTPS on with ciphersuite (TLS1.3)-(ECDHE-SECP256R1)-( ECDSA- SECP256R1-SHA256)-(AES-256-GCM)XML POST EnabledPlease enter your username.Username:navjotPOST enter your password.Password:POST authentication

You will see the following output on a successful connection. DTLS is disabled because we disabled UDP.

Got CONNECT response: HTTP/1.1 200 CONNECTEDCSTP connected. DPD 90, Keepalive 60No DTLS addressSet up UDP failed; using SSL insteadSet to, with SSL connected and DTLS disabledContinuing in the background; pid 1650

Run the following command to break the connection.

$ sudo pkill openconnect

Let's create some systemd scripts for OpenConnect. The first script is to make the client connect automatically on system startup.

Create and open the service file for editing.

$ sudo nano /etc/systemd/system/openconnect.service

Paste the following code into it.

[Unit] Description=OpenConnect VPN Client systemd-resolved.service[Service] Type=simples ExecStart=/bin/bash -c '/bin/echo -n password | /usr/sbin/openconnect -u nome de usuário --passwd-on-stdin' KillSignal=SIGINT Restart=sempre RestartSec=2[Install]

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Enable the service.

$ sudo systemctl habilitar openconnect.service

Start the service.

$ sudo systemctl start openconnect.service

To restart your VPN connection automatically when your PC comes out of sleep state, you need to create another systemd script.

Create and open the restart script for editing.

$ sudo nano /etc/systemd/system/openconnect-restart.service

Paste the following code into it.

[Unit]Description=Reinicie o cliente OpenConnect ao retomar de[Service]Type=simpleExecStart=/bin/systemctl --no-block restart openconnect.service[Install]

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Enable the service.

$ sudo systemctl enable openconnect-restart.service

We can also create a service to restart the VPN connection automatically when it drops. Create and open the VPN verification service for editing.

$ sudo nano /etc/systemd/system/openconnect-check.service

Paste the following code into it.

[Unit]Description=OpenConnect VPN Connectivity CheckerAfter=openconnect.service[Service]Type=simpleExecStart=/bin/bash -c 'for ((; ; )) do (ping -c9 || systemctl restart openconnect) concluído' [Instalar]

Save the file by pressingCtrl + Xand enteringYwhen solicited.

Enable and start the service.

$ sudo systemctl enable enable openconnect-check.service --now

This will run the ping command forever to check the VPN connection. If it crashes, it will automatically restart OpenConnect.

(Video) How to install OpenConnect vpn server On Ubuntu - How to install OpenConnect vpn server

you can downloadOpenConnect GUI Clientsif you want. However, they haven't been updated for quite some time. If you want an updated GUI client, you can visit theOpenConnect GUI GitLab Repositoryand compile it yourself.


This concludes our tutorial on installing an OpenConnect VPN server on an Ubuntu 22.04 server and using the command line client to connect to it. If you have any questions, post them in the comments below.


How to Install OpenConnect VPN Server on Ubuntu 22.04? ›

o openconnect • If prompted to select group, type “” • Enter you IISc email ID when prompted for username • Enter Email password when prompted for password • Keep the terminal alive to stay connected to VPN. Terminate VPN by keying “Ctrl+c” on the terminal.

How do I create an OpenConnect VPN server? ›

How to Set Up the OpenConnect VPN Server
  1. Installing the OpenConnect VPN Server.
  2. Generating SSL/TLS Certificates.
  3. Configuring the OpenConnect VPN Server.
  4. Adding Users to the OpenConnect VPN Server.
  5. Adding UFW Firewall Rules to Open Crucial Ports.
  6. Enabling Port Forwarding.
  7. Setting up NAT with UFW.
Apr 11, 2023

How to setup Cisco VPN on Ubuntu server? ›

Cisco AnyConnect for Ubuntu
  1. Start the terminal and execute the sudo -s command at first. Enter the password.
  2. Then, execute the sh command under specifying the path to the downloaded script. The client will be installed.
  3. Then, enter your username and the password for the WLAN/VPN account. Click on Connect.
Mar 27, 2023

How do I install OpenConnect VPN client? ›

Installing openconnect
  1. Install homebrew or Macports.
  2. Open Terminal and update the package cache using the command sudo brew update.
  3. Install the openconnect package using the command: sudo brew install openconnect. ...
  4. Install the Mac OS X TUN/TAP driver.

How to connect OpenConnect VPN Linux? ›

o openconnect • If prompted to select group, type “” • Enter you IISc email ID when prompted for username • Enter Email password when prompted for password • Keep the terminal alive to stay connected to VPN. Terminate VPN by keying “Ctrl+c” on the terminal.

Does Ubuntu have built in VPN? ›

Does Ubuntu come with VPN in USA? No, Ubuntu does not come with a VPN. However, the desktop variants of Linux, including Ubuntu, offer a Network Manager, an excellent GUI to configure your network settings, which can manage your VPN connections.

How to install OpenConnect VPN server on Ubuntu? ›

Installing OpenConnect
  1. Open Terminal.
  2. Install OpenConnect from the Ubuntu Universe software repository.
  3. $ sudo apt-get install openconnect network-manager-openconnect network-manager-openconnect-gnome.
  4. Open System Settings => Network, click the plus button in the bottom left corner of the window to add a new connection.

What is the difference between OpenVPN and OpenConnect VPN? ›

Do not confuse OpenConnect and OpenVPN. OpenConnect is intended for Cisco, Pulse/Juniper and Palo Alto VPN products, whereas OpenVPN is a different, open source based solution. Both options are supported by NoTouch OS.

How to install VPN in Ubuntu command line? ›

Install OpenVPN on Ubuntu via CLI
  1. Run as superuser. sudo su.
  2. Download components. apt-get install openvpn unzip.
  3. Download the configuration you want.
  4. Enter your login credentials. ...
  5. Start OpenVPN and see that everything works. ...
  6. Verify that the connection was successful. ...
  7. Done.
Feb 10, 2020

Is OpenConnect the same as AnyConnect? ›

OpenConnect is a client for Cisco's AnyConnect SSL VPN [dead link 2022-09-22 ] and Pulse Secure's Pulse Connect Secure.

How to install VPN client in Ubuntu command line? ›

Open a terminal window on your Ubuntu machine and type in the following command: sudo apt install openvpn . This will install the OpenVPN package on your system. This will open a text editor where you can paste the configuration file (opvn) from your VPN provider.

What type of VPN is OpenConnect? ›

OpenConnect is a cross-platform multi-protocol SSL VPN client which supports a number of VPN protocols: Cisco AnyConnect (--protocol=anyconnect) Array Networks AG SSL VPN (--protocol=array)

What VPN is like OpenConnect? ›

The 7 best open source VPN alternatives
  • Openswan | Linux. ...
  • Tcpcrypt | Windows and MacOS. ...
  • Tinc | Linux, MacOS, and Windows. ...
  • SoftEther VPN | Linux, Windows, MacOS, and others. ...
  • OpenConnect | Linux. ...
  • Libreswan | Linux, FreeBSD, and MacOS. ...
  • StrongSwan | Linux, Android, and routers.
Jun 8, 2018

How to setup a Cisco VPN server? ›

5 Steps to Configure Cisco AnyConnect VPN
  1. Configure AAA authentication. The first thing to configure is AAA authentication. ...
  2. Define VPN protocols. When users connect their VPN, they'll need an IP address for the VPN session. ...
  3. Configure tunnel groups. ...
  4. Set group policies. ...
  5. Apply the configuration. ...
  6. Authenticating logic flow.
Mar 2, 2021

How to install OpenVPN server in Linux? ›

The steps are as follows:
  1. Step 1 – Update your system. ...
  2. Step 2 – Find and note down your IP address. ...
  3. Step 3 – Download and run script. ...
  4. Step 4 – Connect an OpenVPN server using IOS/Android/Linux/Windows client. ...
  5. Step 5 – Verify/test the connectivity. ...
  6. Step 6 – Adding or removing OpenVPN client.
Mar 3, 2023

How to connect VPN in Linux Ubuntu? ›

How to Connect to a VPN on Ubuntu
  1. Step 1: Find the VPN Settings page. Open up Settings and click on the Network tab. ...
  2. Step 2: Add and set up the VPN. ...
  3. Step 3: Start using the VPN. ...
  4. Step 4: Configure the VPN. ...
  5. 3 Best VPNs for Linux. ...
  6. 5 Best Linux Distros for Beginners.
Jul 31, 2022

How to install setup VPN on Linux? ›

How to set up a VPN on Linux with Network Manager
  1. Download our OpenVPN configuration files.
  2. Update your system and the Network manager.
  3. Import OpenVPN configuration files in the VPN settings.
  4. Connect to the VPN server, which settings you've just imported.
Sep 27, 2022

What is the best VPN to use with Ubuntu? ›

The Best VPNs for Ubuntu | In-depth analysis
  • Private Internet Access. ...
  • Surfshark. ...
  • ProtonVPN. Proton is a fast service with robust encryption and innovative features to keep users secure. ...
  • Mullvad. ...
  • ExpressVPN. ...
  • AirVPN. ...
  • TorGuard. ...
  • CyberGhost VPN.

What VPN program for Ubuntu? ›

5 Best VPNs for Ubuntu in 2023
  • NordVPN: Another command-line app for Ubuntu at a budget-friendly price. ...
  • ExpressVPN: Our top recommendation for Ubuntu. ...
  • Surfshark: Well-suited to unblocking content from abroad. ...
  • Atlas VPN: Strong unblocker of content. ...
  • Private Internet Access: Easy-to-use GUI app.
Jan 25, 2023

How to install free VPN on Linux Ubuntu? ›

Installing a free Linux VPN through Ubuntu Gnome
  1. Download the . ...
  2. Download the Ubuntu OpenVPN packages for NetworkManager, and install by opening a Terminal window and typing: sudo apt-get install network-manager-openvpn-gnome.
Jul 7, 2020

How do I open connect to server in Ubuntu? ›

Connect to a file server
  1. In the file manager, click Other Locations in the sidebar.
  2. In Connect to Server, enter the address of the server, in the form of a URL. Details on supported URLs are listed below. ...
  3. Click Connect. The files on the server will be shown.

How to setup OpenVPN using Ubuntu Network Manager? ›

  1. Go to Network Manager, click Network Connections. Click the '+' button in the Network Connections window and choose OpenVPN from the dropdown menu.
  2. In the Editing VPN connection window, Enter the following details: Connection name: SlickVPN. Gateway: or choose a gateway from here. Type: Password.

Which VPN is better than OpenVPN? ›

Both OpenVPN and WireGuard are really secure open-source VPN protocols, if properly implemented. However, WireGuard is newer and faster than OpenVPN, because it was designed with modern devices and processors in mind. It is also easier to maintain.

Do I need a server for OpenVPN? ›

Otherwise, there are no particular software requirements. You need a server (virtual or on-premise) with a supported Linux operating system. The server can be a minimal install, a server install, or a full desktop installation.

Should I use OpenVPN bridge or router? ›

Overall, routing is probably a better choice for most people, as it is more efficient and easier to set up (as far as the OpenVPN configuration itself) than bridging. Routing also provides a greater ability to selectively control access rights on a client-specific basis.

Where is the OpenVPN config file Ubuntu? ›

Configuration file. You must create a server config file in /etc/openvpn/server/ . You can start from scratch if you want, and OpenVPN includes several sample configuration files to use as a starting point. Have a look in /usr/share/doc/openvpn/sample/sample-config-files/ to see them all.

How to install VPN in terminal? ›

Install OpenVPN using your package manager if it is not installed already:
  1. Debian, Ubuntu, Mint: sudo apt-get install openvpn.
  2. Fedora, CentOS: sudo yum install openvpn. or sudo dnf install openvpn.
  3. Arch, Manjaro: sudo pacman -S openvpn.
  4. openSUSE: zypper install openvpn.

How to check VPN on Ubuntu terminal? ›

Checking the VPN Connection
  1. Open a Local Terminal.
  2. Run the comand ifconfig.
  3. Check whether the output contains a tun device with an IP address from the private network.
  4. Additionally, check whether you can ping the VPN server's private IP address.

What is the latest version of OpenConnect? ›

The latest release is OpenConnect v9. 10 (PGP signature), released on 2023-05-04 with the following changelog: Fix external browser authentication with KDE plasma-nm < 5.26. Always redirect stdout to stderr when spawning external browser.

What is the default OpenConnect port? ›

The default port used by OpenConnect VPN is 443.

What protocol does OpenConnect use? ›

AnyConnect uses TLS/DTLS: TCP/443, UDP/443 (or the port you configured on your VPN gateway, but 443 is the default)

How to install OpenVPN client in Ubuntu 22? ›

The steps are as follows:
  1. Step 1 – Update your system ↑ ...
  2. Step 2 – Find and note down your IP address ↑ ...
  3. Step 3 – Download and run script ↑ ...
  4. Step 4 – Connect an OpenVPN server using IOS/Android/Linux/Windows client ↑ ...
  5. Step 5 – Add/delete/revoke VPN users ↑
Mar 30, 2023

How to run OpenVPN from command line? ›

To run OpenVPN, you can:
  1. Right click on an OpenVPN configuration file (. ovpn) and select Start OpenVPN on this configuration file. ...
  2. Run OpenVPN from a command prompt Window with a command such as "openvpn myconfig. ovpn". ...
  3. Run OpenVPN as a service by putting one or more .

Is OpenVPN a full tunnel? ›

You are able to create a full-tunnel connection using OpenVPN by enabling the 'Full Tunnel' option in Group settings. Any client config file which belongs to this group will have the full-tunnel option added to its config file.

Is OpenVPN TCP or VPN? ›

OpenVPN is an open-source VPN protocol used by many leading VPN providers, including NordVPN. TCP is more reliable, but there are many uses where UDP is preferred and this is usually the default protocol on most VPN services. UDP is a great option if you are gaming, streaming or using VoIP services.

What is the difference between L2TP and OpenVPN? ›

Layer 2 Tunnel Protocol (L2TP) is a VPN protocol that doesn't offer any encryption.
OpenVPN vs L2TP.
VPN SpeedBest performing protocol. Fast speeds, even on connections with high latency and across great distancesRequires more CPU processing to encapsulate data twice
5 more rows

What is the URL for OpenConnect? ›


What is the safest VPN connection type? ›

Many VPN experts recommend OpenVPN as the most secure protocol. It uses 256-bit encryption as a default but also offers other ciphers such as 3DES (triple data encryption standard), Blowfish, CAST-128, and AES (Advanced Encryption Standard).

Which VPN has strongest connection? ›

ExpressVPN received a CNET Editors' Choice Award for best overall VPN. We evaluate VPNs based on their overall performance in three main categories: speed, security and price. Express isn't the cheapest, but it's among the fastest and, so far, is the most secure. Surfshark is a close second among our picks.

How to setup Cisco VPN server on Linux? ›

To configure the VPN using the Network Manager:
  1. Click on the "Network Manager" icon in your System Tray on your desktop.
  2. In the menu that appears, go to VPN Connections -> Configure VPN.
  3. Click Add.
  4. Choose Cisco AnyConnect Compatible VPN (openconnect) and click Create.
  5. Enter the following information: ...
  6. Click Save.
Feb 26, 2015

How do I install and configure a VPN server? ›

To setup your home router as a VPN server:
  1. Open up your preferred browser.
  2. Enter your router's LAN (internal) IP address into the search bar. ...
  3. Enter the router's username and password. ...
  4. Go into Settings (or Advanced Settings) > VPN Service.
  5. Enable the VPN Service.
Feb 10, 2023

How do I create a VPN server? ›

Most routers can't create VPN servers.
  1. Open your router's configuration page, usually at the first IP address in your internal network. Try 192.168. ...
  2. Enter the Administrator password for your router.
  3. Find the correct page with VPN configurations and create a server.
Mar 20, 2023

How to manually configure OpenVPN on LInux? ›

How to manually setup OpenVPN for Linux
  1. Install the necessary packages: Install the OpenVPN package by opening a terminal (press Ctrl + Alt + T) and entering: ...
  2. Get the Proton VPN config files: Download the desired configuration files. ...
  3. Find your OpenVPN credentials.

How to start OpenVPN in LInux command? ›

Command Line configuration:

To start, open a terminal. Install the OpenVPN client. For RedHat based systems (CentOS, Springdale LInux, Fedora), type "sudo yum install openvpn". You will be asked to verify the download is okay.

How to install IPsec on Ubuntu? ›

Install and Configure the StrongSwan Client
  1. Update your Ubuntu system. ...
  2. Install the StrongSwan client and required plugins. ...
  3. Download or copy the StrongSwan host gateway VPN server's certificate. ...
  4. Add the IPsec secrets file to the StrongSwan client. ...
  5. Create or modify the /etc/ipsec.
Feb 18, 2022

How to configure L2TP VPN server in Ubuntu? ›

Ubuntu Linux
  1. Go to Settings -> Network -> VPN. ...
  2. Select Layer 2 Tunneling Protocol (L2TP).
  3. Enter anything you like in the Name field.
  4. Enter Your VPN Server IP for the Gateway.
  5. Enter Your VPN Username for the User name.
  6. Right-click the ? in the Password field, select Store the password only for this user.

How to install L2TP on Ubuntu? ›

Written by Richard.
  1. Proceed to Terminal application.
  2. In the Terminal, enter this line: sudo apt-get install network-manager-l2tp network-manager-l2tp-gnome.
  3. Enter your password for the Linux account.
  4. When the installation process is completed. ...
  5. Click Layer 2 Tunneling Protocol (L2TP).

What is alternative to OpenVPN in Ubuntu? ›

Here's a list of the OpenVPN Alternatives in 2023:
  • Libreswan. Libreswan is a leading and popular open-source VPN alternative that supports common protocols such as IKE and IPsec. ...
  • OpenConnect. Here's another open-source SSL VPN client viz. ...
  • Openswan. ...
  • SocialVPN. ...
  • SoftEther. ...
  • strongSwan. ...
  • Tcpcrypt. ...
  • Tinc VPN.
Dec 4, 2020

Does Linux have a built in VPN? ›

No, Linux doesn't have a built-in VPN in the sense we use the term in this article. Most distributions have support for tunneling protocols like OpenVPN, IPSec, or even WireGuard. Though, to take advantage of them, you'll still need an outside server to connect to.

Does Ubuntu have a built in VPN? ›

OpenVPN is a Virtual Private Networking (VPN) solution provided in the Ubuntu Repositories. It is flexible, reliable and secure.

Is OpenVPN free? ›

OpenVPN Access Server is free to install and use for 2 simultaneous VPN connections for testing purposes.

Is there an OpenVPN gui for Linux? ›

Linux Network-Manager GUI for OpenVPN

It is the default, but if in doubt make sure you have package network-manager-openvpn installed. Open the Network Manager GUI, select the VPN tab and then the 'Add' button. Select OpenVPN as the VPN type in the opening requester and press 'Create'.

Is there a good free VPN for Linux? ›


For one, this free VPN fully supports Linux. Users who use Ubuntu, Fedora, Manjaro, Arch, and Debian can use ProtonVPN, albeit, by using the OpenVPN connection.

How to create Cisco AnyConnect VPN server? ›

5 Steps to Configure Cisco AnyConnect VPN
  1. Configure AAA authentication. The first thing to configure is AAA authentication. ...
  2. Define VPN protocols. When users connect their VPN, they'll need an IP address for the VPN session. ...
  3. Configure tunnel groups. ...
  4. Set group policies. ...
  5. Apply the configuration. ...
  6. Authenticating logic flow.
Mar 2, 2021

Is OpenVPN server free? ›

OpenVPN Access Server is free to install and use for 2 simultaneous VPN connections for testing purposes.

Can I host my own VPN server? ›

Certainly. You can buy a router with built-in VPN capability or flash one with a custom firmware. You can then set it up as a VPN or connect it to a subscription service like CyberGhost VPN. You can also set up a server on your Windows computer or host it in a cloud provider like Google Cloud for Windows or Mac.

How to create a VPN server on Linux? ›

How to Make Your Own VPN in Linux in 12 Steps
  1. 01 Get a Remote Server that Runs Ubuntu.
  2. 02 Install OpenVPN.
  3. 03 Configure the Certificate Authority Directory.
  4. 04 Configure the Certificate Authority.
  5. 05 Build the Certificate Authority.
  6. 06 Creating the Server's Encryption Files.
  7. 07 Creating the Client's Certificate.
Jun 18, 2022

How do I download and install Cisco AnyConnect VPN client? ›

How to Install Cisco AnyConnect on a PC
  1. Extract the Cisco AnyConnect installer filer.
  2. In the extracted folder, double-click Setup.exe to initiate the installation process.
  3. A pop-up window may ask for permissions, in this case, select Yes. ...
  4. Choose the components to be installed and click Install Selected.
  5. Click OK.
Sep 23, 2022

What is the minimum requirement for OpenVPN server? ›

Memory requirements depend on the number of connected devices and the level of NAT traffic your VPN server needs to process. At a minimum, you must start with 1GB of memory, and add approximately 1GB for each 150 connected devices.

Which server is best for OpenVPN? ›

Best OpenVPN Services [Updated 2023]
  • ExpressVPN – Offers the Best OpenVPN Services. Key Features: 3000+ servers in 94 countries. ...
  • Surfshark – Budget-friendly OpenVPN Client. Key Features: 3200+ servers in 100 countries. ...
  • NordVPN – Trustworthy VPN with Robust OpenVPN Encryption.

What is the server address for OpenConnect VPN? ›

10.10. 10.1 is the IP address of OpenConnect VPN server in the VPN LAN. This will speed up DNS lookups a little bit for clients because the network latency between the VPN server and the DNS resolver is eliminated.

What is the alternative to OpenConnect VPN? ›

  • 701. OpenVPN. Freemium • Open Source. ...
  • 167. WireGuard. Free • Open Source. ...
  • Tunnelblick. Free • Open Source. VPN Service. ...
  • sshuttle. Free • Open Source. VPN Service. ...
  • OpenVPN Finder. Free • Open Source. Mac. ...
  • OpenConnect GUI. Free • Open Source. VPN Service. ...
  • Algo VPN. Free • Open Source. VPN Service. ...
  • Cisco AnyConnect. Paid • Proprietary.
Sep 8, 2022


1. Connect VPN using OpenVPN on Ubuntu or Debian Linux
2. Setup OpenConnect Server On Ubuntu | دور زدن فیلترینگ با راه‌اندازی سرور وی پی ان اوپن کانکت
(Net Admin Plus)
3. How to Install Openvpn in Ubuntu and Connect From Ubuntu and Windows 10
(root tech)
4. How to install Cisco Anyconnect VPN on Ubuntu 18.04 and Ubuntu 20.04 LTS
(ve Techno)
5. How to Install Cisco-anyconnect in Linux.
(Cloud Pradeep)
6. Error Open Connect Client VPN (Open VPN)
(Alejandro De Luna)


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