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CentOS provides an PPTP solutions in the repository, |
STEP 1. Install PPTP
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sudo yum update
sudo yum -y install pptp
sudo modprobe nf_conntrack_pptp
sudo modprobe ppp_mppe |
STEP 2. Run sudo vi /etc/ppp/chap-secrets to edit the chap-secret file as shown below:
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# Secrets for authentication using CHAP
# client server secret IP addresses
vpnusername PPTP vpnpassword * |
Note that you should put space or tab between elements listed above.
STEP 3. Run sudo vi /etc/ppp/peers/linuxconfig and enter the following information. You can create your own name whatever instead of linuxconfig.
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pty "pptp us-ded-6.dns2use.com -nolaunchpppd"
name yourVPNusername
remotename PPTP
require-mppe-128
file /etc/ppp/options.pptp
ipparam linuxconfig |
STEP 4. Run sudo vi /etc/ppp/options.pptp to be sure there is no # sign before these lines.
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lock
noauth
refuse-pap
refuse-eap
refuse-chap
nobsdcomp
nodeflate
require-mppe-128 |
STEP 5. Run sudo vi /etc/ppp/ip-up.local and add the following line. By doing so, it will set the default to ppp0.
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/sbin/route add default ppp0 |
In order to execute the file, run
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sudo chmod 755 /etc/ppp/ip-up.local |
STEP 6. Allow pptp to your firewall policy
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firewall-cmd --permanent --zone=public --add-port=1723/tcp
firewall-cmd --permanent --zone=public --add-port=1723/udp
firewall-cmd --reload |
STEP 6. Connect to the VPN by running
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sudo pppd call linuxconfig |
STEP 7. How do I check the accuracy of your VPN IP and location?
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curl ipinfo.io |
If there is no change, please check your network interface by ifconfig - for example) ppp0 with the assigned IP address
STEP 8. How to disconnect the VPN
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sudo pkill pppd |
STEP 9. Trouble shooting
If you are unable to connect, please check your connection logs by running
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sudo cat /var/log/messages | grep pppd |
If you use firewalld with pptp, you will need to call following commands to add rules to firewalld
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sudo firewall-cmd --permanent --zone=public --direct --add-rule ipv4 filter INPUT 0 -p gre -j ACCEPT
sudo firewall-cmd --permanent --zone=public --direct --add-rule ipv6 filter INPUT 0 -p gre -j ACCEPT
sudo firewall-cmd --permanent --zone=public --add-masquerade
sudo firewall-cmd --reload |
https://www.lightning-ashe.com/develop/setup-pptp-server-on-centos/
https://linuxconfig.org/how-to-establish-pptp-vpn-client-connection-on-centos-rhel-7-linuxhttps://support.purevpn.com/command-line-setup-in-linux-centos