Best VPN for Cent: Linux VPN Comparison

Bottom Line: A VPN compatible with CentOS encrypts your traffic and protects your privacy on one of the most widely used enterprise Linux distributions. The best CentOS VPNs offer RPM packages, CLI tools, and native support for OpenVPN or WireGuard through yum or dnf.

CentOS is a free, community-driven Linux distribution built from Red Hat Enterprise Linux (RHEL) source code. System administrators and developers have relied on it for years to run servers, workstations, and cloud infrastructure. But CentOS does not ship with a built-in VPN client, and its shifting landscape (CentOS 7 reached end-of-life in June 2024, while CentOS Stream now serves as a rolling preview of RHEL) makes choosing the right VPN provider more important than ever.

If you are new to VPNs, our guide on what is a VPN covers the fundamentals. This page focuses specifically on which VPN providers work best on CentOS, how to install them, and what to watch out for on RPM-based systems. If you run a different Linux distribution, check our guides for Fedora, Red Hat, or Debian.

Why CentOS Users Need a VPN

CentOS powers a large share of web servers and development environments. Many users connect remotely via SSH, transfer sensitive files, or manage production databases. A VPN adds a critical layer of protection in several scenarios:

• Remote server administration: Encrypt management traffic between your local machine and CentOS servers, especially on public Wi-Fi.
• Privacy on CentOS desktops: CentOS Stream works as a daily-driver desktop for some developers. A VPN prevents your ISP from logging your browsing activity.
• Bypassing network restrictions: Some corporate or regional firewalls block ports or protocols. A VPN tunnels traffic past those filters.
• Securing CI/CD pipelines: If your build servers run CentOS, routing traffic through a VPN protects code artifacts and API keys in transit.

Because CentOS uses RPM-based package management (yum on CentOS 7, dnf on CentOS Stream 8/9), you need a VPN provider that offers .rpm packages or clear manual setup instructions for OpenVPN or WireGuard. Not every provider does this well, which is why a general Linux VPN guide only gets you halfway.

Top VPN Providers for CentOS

We evaluated NordVPN, Surfshark, and ExpressVPN on CentOS-specific criteria: RPM package availability, CLI functionality, protocol support (OpenVPN and WireGuard), kill switch reliability on Linux, and DNS leak protection.

Feature	NordVPN	Surfshark	ExpressVPN
Native Linux CLI	Yes	Yes	Yes
RPM package (.rpm)	Yes	Yes	No (manual install)
Install via yum/dnf	Yes (repo setup)	Yes (repo setup)	No
WireGuard (NordLynx)	Yes	Yes	No (Lightway protocol)
OpenVPN support	Yes	Yes	Yes
Kill switch on Linux	Yes (CLI flag)	Yes (CLI flag)	Yes (network lock)
DNS leak protection	Built-in	Built-in	Built-in
Simultaneous devices	10	Unlimited	8
Servers	6,400+ in 111 countries	3,200+ in 100 countries	3,000+ in 105 countries

NordVPN Offers the Strongest CentOS Experience

NordVPN provides a dedicated .rpm package you can install directly through your terminal. It uses NordLynx, its implementation of WireGuard, which delivers faster speeds than standard OpenVPN on CentOS. The CLI includes a built-in kill switch and auto-connect feature.

Install NordVPN on CentOS Stream 9:

# Download the RPM Package
sudo dnf install -y https://repo.nordvpn.com/yum/nordvpn/centos/noarch/Packages/n/nordvpn-release-1.0.0-1.noarch.rpm

# Install the NordVPN client
sudo dnf install -y nordvpn

# Log in and connect
nordvpn login
nordvpn set technology nordlynx
nordvpn set killswitch on
nordvpn connect

For CentOS 7 (now past EOL), replace dnf with yum in the commands above. NordVPN may eventually drop support for CentOS 7 as its packages target newer glibc versions. Check NordVPN’s official Linux documentation for the latest compatibility notes.

Surfshark Delivers Unlimited Devices on a Budget

Surfshark is the best budget option for CentOS users who need unlimited device connections. It provides an RPM-based repository, and its CLI supports both WireGuard and OpenVPN. The kill switch works reliably through the command-line interface, and Surfshark’s CleanWeb feature blocks ads and trackers at the DNS level.

Install Surfshark on CentOS Stream:

# Import the Surfshark GPG key and add the repo
sudo rpm --import https://ocean.surfshark.com/RPM-GPG-KEY-surfshark
sudo dnf config-manager --add-repo https://ocean.surfshark.com/fedora/repo/surfshark.repo

# Install and connect
sudo dnf install -y surfshark
sudo surfshark-vpn login
sudo surfshark-vpn connect

Surfshark’s RPM repository targets Fedora-based systems, but it works on CentOS Stream because both share the same RPM packaging ecosystem. See Surfshark’s Linux setup guide for additional configuration options.

ExpressVPN Requires Manual RPM Installation

ExpressVPN does not offer a yum/dnf repository, which makes installation slightly more manual on CentOS. You download an .rpm installer directly from your account dashboard. ExpressVPN uses its proprietary Lightway protocol instead of WireGuard, which still delivers strong speeds but limits configuration flexibility for advanced users. Its “Network Lock” kill switch works well on Linux.

Install ExpressVPN on CentOS:

# Download the .rpm file from your ExpressVPN dashboard, then:
sudo dnf install -y /path/to/expressvpn-*.rpm

# Activate and connect
expressvpn activate
expressvpn connect

ExpressVPN supports CentOS 7 and newer, though the company recommends 64-bit systems running kernel 4.x or later. If you are on CentOS 7 with its older 3.10 kernel, test compatibility before committing to a subscription.

Manual OpenVPN Setup on CentOS

If your VPN provider does not offer a native CentOS client, you can configure OpenVPN manually. This method works with nearly any provider that supplies .ovpn configuration files.

# Install OpenVPN on CentOS Stream
sudo dnf install -y epel-release
sudo dnf install -y openvpn

# Download your provider's .ovpn config file, then connect:
sudo openvpn --config /path/to/your-server.ovpn

# To run as a background service:
sudo cp /path/to/your-server.ovpn /etc/openvpn/client/client.conf
sudo systemctl enable --now openvpn-client@client

Manual OpenVPN setup gives you full control over encryption ciphers, routing, and DNS. However, you lose the convenience of a built-in kill switch and server switching that CLI tools provide.

CentOS 7 EOL: What It Means for VPN Users

CentOS 7 reached end-of-life on June 30, 2024. This means no more security patches from the CentOS project. Running a VPN on an unpatched operating system undermines the security a VPN provides. If you still run CentOS 7, consider migrating to:

• CentOS Stream 9 for a rolling RHEL preview
• AlmaLinux 9 or Rocky Linux 9 for a traditional RHEL-compatible, stable release

All three options use dnf and accept the same RPM packages. VPN providers that support CentOS Stream generally work without modification on AlmaLinux and Rocky Linux.

Fixing Common VPN Issues on CentOS

DNS Leaks on CentOS

CentOS uses systemd-resolved or /etc/resolv.conf depending on your configuration. Some VPN clients fail to override the system DNS, which causes DNS queries to leak outside the tunnel.

Fix: Check for leaks after connecting:

# Verify your DNS is routing through the VPN
cat /etc/resolv.conf
# It should show the VPN provider's DNS, not your ISP's

If your ISP’s DNS still appears, manually set DNS in your VPN client or edit /etc/resolv.conf to point to your provider’s DNS servers (e.g., 103.86.96.100 for NordVPN).

OpenVPN Service Fails to Start via systemctl

If systemctl start openvpn-client@client fails, check the journal:

sudo journalctl -u openvpn-client@client -e

Common causes: missing .ovpn file in /etc/openvpn/client/, incorrect permissions, or the TUN/TAP device not loaded. Load it manually with:

sudo modprobe tun

Firewalld Blocks VPN Tunnel Traffic

CentOS uses firewalld by default. It can block VPN traffic if the tunnel interface is not in the correct zone.

# Add the VPN tunnel interface to the trusted zone
sudo firewall-cmd --zone=trusted --add-interface=tun0 --permanent
sudo firewall-cmd --reload

This allows all traffic through the VPN tunnel while keeping your other firewall rules intact.

Final Verdict

For CentOS users, NordVPN is the top pick. It offers a proper RPM repository, a full-featured CLI with a kill switch, and NordLynx (WireGuard) support that works out of the box on CentOS Stream. Surfshark is the best value if you need unlimited devices and a solid RPM-based install process. ExpressVPN remains a strong option for speed, but its manual RPM installation and lack of WireGuard make it less convenient on CentOS.

Whatever provider you choose, prioritize one with a native Linux CLI, OpenVPN or WireGuard support, and a working kill switch. CentOS users managing servers or handling sensitive data cannot afford DNS leaks or dropped connections. And if you are still on CentOS 7, migrating to CentOS Stream 9, AlmaLinux, or Rocky Linux should be your first step before configuring any VPN.

Frequently Asked Questions

AllHow it worksSetup & Support

Why do I need to install a separate VPN client on CentOS instead of using something built in?

CentOS ships with no default VPN client, and its RPM-based package system (yum on CentOS 7, dnf on CentOS Stream 8/9) means providers must offer either an .rpm package or manual OpenVPN/WireGuard config files. NordVPN and Surfshark both provide dedicated dnf repositories; ExpressVPN requires downloading and installing the .rpm manually since it has no repo.

Which VPN provider has the most complete native CentOS support?

NordVPN, based on RPM repository availability, CLI functionality, and protocol support. It installs via a dedicated .rpm package through dnf, uses NordLynx (its WireGuard implementation) for faster speeds than OpenVPN, and includes a CLI-based kill switch you enable with nordvpn set killswitch on. Surfshark also offers a working RPM repo, though its packages target Fedora-based systems.

How do I install NordVPN on CentOS Stream 9?

Run sudo dnf install -y against NordVPN’s repo RPM at repo.nordvpn.com, then sudo dnf install -y nordvpn to pull the client itself. Log in with nordvpn login, set the protocol with nordvpn set technology nordlynx, enable protection via nordvpn set killswitch on, then run nordvpn connect. For CentOS 7, substitute yum for dnf in each command.

How do I get Surfshark running on CentOS through its RPM repository?

Import Surfshark’s GPG key with sudo rpm --import against ocean.surfshark.com, then add its repo using sudo dnf config-manager --add-repo pointed at the Fedora repo URL, since Surfshark’s packaging targets Fedora-based systems but installs cleanly on CentOS Stream. Install with sudo dnf install -y surfshark, then log in and connect via surfshark-vpn login and surfshark-vpn connect.

Why is installing ExpressVPN on CentOS more manual than the other two providers?

ExpressVPN offers no yum/dnf repository, so you download the .rpm file directly from your account dashboard and install it with sudo dnf install -y /path/to/expressvpn-*.rpm. It uses the proprietary Lightway protocol instead of WireGuard, which limits configuration flexibility, though its Network Lock kill switch still functions reliably on Linux once activated with expressvpn activate.

What should I do if I suspect DNS leaks on my CentOS VPN connection?

Check /etc/resolv.conf after connecting; it should display your VPN provider’s DNS servers, not your ISP’s. CentOS’s use of systemd-resolved or a static resolv.conf can cause some clients to fail overriding system DNS. If your ISP’s servers still appear, manually set the provider’s DNS in the client config, for example NordVPN’s 103.86.96.100.

What if the OpenVPN systemd service fails to start after manual configuration?

Check sudo journalctl -u openvpn-client@client -e for the specific error. Common causes on CentOS include a missing .ovpn file in /etc/openvpn/client/, incorrect file permissions, or the TUN/TAP kernel module not being loaded, which you fix by running sudo modprobe tun before restarting the service.

Why does firewalld block my VPN tunnel traffic on CentOS?

Firewalld runs by default on CentOS and blocks traffic through the tunnel interface if it isn’t assigned to the correct zone. Fix it by adding the interface to the trusted zone with sudo firewall-cmd --zone=trusted --add-interface=tun0 --permanent followed by sudo firewall-cmd --reload, which permits VPN traffic while leaving your other firewall rules intact.

Is it still safe to run a VPN on CentOS 7 now that it’s past end-of-life?

Not really, since CentOS 7 reached end-of-life on June 30, 2024, meaning no further security patches from the CentOS project. Running a VPN on an unpatched OS undermines the protection it provides. Migrate to CentOS Stream 9, AlmaLinux 9, or Rocky Linux 9, all of which use dnf and accept the same RPM packages VPN providers already support.

How many simultaneous connections do NordVPN, Surfshark, and ExpressVPN allow for CentOS setups?

NordVPN covers 10 simultaneous devices, useful if you’re securing several servers plus a workstation. Surfshark allows unlimited connections on one account, the strongest option for admins managing many CentOS instances. ExpressVPN allows 10 to 14 devices depending on the plan tier you choose, with a 30-day money-back guarantee backing all three.

Which of these VPNs performs best for CentOS servers handling large file transfers or CI/CD traffic?

NordVPN ranks #1 of 22 in our Speed Lab, aggregated from independent labs, and its NordLynx protocol (WireGuard-based) typically outpaces OpenVPN on CentOS. Surfshark ranks #4 of 22, also using WireGuard. ExpressVPN ranks #8 of 22 and relies on its proprietary Lightway protocol rather than WireGuard, which can matter for encrypting build artifacts and API keys in transit.

How do NordVPN, Surfshark, and ExpressVPN compare on price for CentOS users?

Surfshark is cheapest at from $1.99/month on its longest-term plan, and it’s the only one of the three offering unlimited device connections, a good match for admins running many CentOS instances. NordVPN and ExpressVPN both start from $3.49/month on their longest-term plans. All three back paid plans with a 30-day money-back guarantee if the Linux setup doesn’t work out.

Does WireGuard actually work better than OpenVPN on CentOS, or should I stick with manual config?

WireGuard-based protocols, like NordVPN’s NordLynx and Surfshark’s native WireGuard support, generally deliver faster throughput than standard OpenVPN on CentOS and are enabled through a simple CLI command. Manual OpenVPN setup using .ovpn files gives full control over ciphers and routing but sacrifices the built-in kill switch and one-command server switching that native CLI tools provide.