Yum Install Pptp Client Centos 7 Installation

This howto describes the steps in how to setup a PPTP VPN on Centos, Fedora, Debian, and Ubuntu with basic RSA authentication. Before the installation make sure to have your Yum repos updated with the Epel repos. CentOS/RedHat 6: yum install pptpd.x8664 -y. The PostgreSQL relational database system is a powerful, scalable, and standards-compliant open-source database platform. This guide will help you install and configure PostgreSQL on your CentOS 7 Linode. Before You Begin. Familiarize yourself with our Getting Started guide and complete the steps for setting your Linode’s hostname and timezone. Complete the sections of our Securing Your.

How To Install OpenVPN on CentOS Linux (6 and 7)

[Last updated: 24 May 2020]

In this tutorial we explain how to install OpenVPN on your QuickServers virtual or dedicated server. OpenVPN is an open source VPN application that lets you create and join a private network securely over the internet.

Use promo code QRP10031 and have your OpenVPN virtual server for only EUR 1,50.

Step 1: Enable EPEL repository

On CentOS 6:

On CentOS 7:

Step 2: Install and configure OpenVPN

Copy the sample.conf to /etc/openvpn as starting point for our own config file. Now, let's change the configuration file. Uncomment the following lines and make them look like as below:

Final fantasy 8 pc itag. Step 3: Generate OpenVPN key and certificates

Create a folder to store the key and certificates in, copy the key generation script and openssl.cnf with this command:

Now, we're going to open en change /etc/openvpn/easy-rsa/vars: Find (and uncomment when commented) these lines and change them with your own information. Change KEY_NAME to 'server'. Do not change it to something else since we use 'server' also in other commands in this tutorial. Change KEY_CN to a subdomain resolving to the IP address of your server. Now we're going to generate all keys and certificates. As we specifed all variables already in /etc/openvpn/easy-rsa/vars, just press ENTER on each question.

Step 4 for CentOS 6: Add iptables rule

Add this rule to allow VPN traffic go through. Change 'venet0' to your main network adapter name. In most cases this is venet0 or eth0.

Save the new firewall rule Then we must enable IP forwarding in sysctl. Open sysctl.conf: Locate the line 'net.ipv4.ip_forward = 0' and change it to:

Step 4 for CentOS 7: Install iptables-services and add iptables rule

Execute these commands:

Add this rule to allow VPN traffic go through. Change 'venet0' to your main network adapter name. In most cases this is venet0 or eth0. Save the new firewall rule Then we must enable IP forwarding in sysctl. Open sysctl.conf: Locate the line with net.ipv4.ip_forward = 0 and change it to:

Step 5: Start OpenVPN

Last command; start OpenVPN!

Your OpenVPN server is now installed and running on your CentOS server.

And now?

You need to install the OpenVPN client on your PC or Mac.

And you need a myvpn.ovpn file, which has this content: Double click on this file to start OpenVPN.

Continuing the VPN series, today we cover Poptop, or pptpd. It is easier to configure than other VPN software, but MS-CHAP-v2 encryption that it uses is not really secure, as we come to expect from Microsoft software. Nevertheless I have experienced situations where Poptop succeeds where other VPN like OpenVPN and Softether fail, so this article might be useful to some people.

So lets tstart, poptop is in epel repository, so we will add it and install ptppd package.

yum -y install epel-release
yum -y install ppp pptpd net-tools iptables-services

Next we need to configure it. Easiest way is to backup old configuration file and just paste new one which I will provide in the article. So lets do just that.

mv /etc/pptpd.conf /etc/pptpd.conf.orig

echo 'option /etc/ppp/options.pptpd
logwtmp
localip 10.0.10.1
remoteip 10.0.10.2-254' > /etc/pptpd.conf

This means that your poptop interface will be 10.0.10.1 and the clients will get assigned private ip on the same subnet, from 2 trough 254. Public IP will off course be same as server's, that is why we are running the VPN.

Next we get to the to the options.pptpd file which might or might not exist, but anyways we will create it. Off course we will first backup it if exists.

mv -f /etc/ppp/options.pptpd /etc/ppp/options.pptpd.orig

echo 'name pptpd
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
proxyarp
lock
nobsdcomp
novj
novjccomp
nologfd
ms-dns 8.8.8.8
ms-dns 8.8.4.4' > /etc/ppp/options.pptpd

You can have many accounts and there is setting to limit the number, but we will add just one for testing, with username linoxide and password linoxide:

mv /etc/ppp/chap-secrets /etc/ppp/chap-secrets.orig

echo 'linoxide pptpd linoxide *' > /etc/ppp/chap-secrets

The asterisk means that user can be connected from any ip which is useful if you are going to connect from different devices and computers. If you want to bind account to one ip, you can type that ip there instead of *. If you want one more account, repeate the previous comand, only this time use >> instead > because we want to append rather than overwrite entire file. So something like this

echo 'geek pptpd geek *' >> /etc/ppp/chap-secrets

So there you go, we actually have two users now. Next we need to setup forwarding, so those next two lines are for that:

echo net.ipv4.ip_forward = 1 >> /etc/sysctl.conf

sysctl -p

Next lets just disable firewalls to keep things simple:

systemctl stop firewalld.service
systemctl disable firewalld.service
service iptables save
service iptables stop
chkconfig iptables off
iptables -F
chmod +x /etc/rc.d/rc.local

And then we need just to setup masquerading and post-routing and we are done.

echo 'iptables -t nat -A POSTROUTING -o YOUR-NIC-j MASQUERADE' >> /etc/rc.d/rc.local

iptables -t nat -A POSTROUTING -o YOUR-NIC-j MASQUERADE

service pptpd restart

Instead YOUR-NIC you need to put name of your network facing interface, if you don't know the name type ifconfig (that is why we installed net-tools at the start).

Connecting to Poptop VPN server

Since Poptop is easy and article is not too long, we can include making the connection guide in same article with server guide. Best (and worst, depend how you look at it) thing about Poptop is that you don't need any certificates, only username and password, so connecting is straightforward. At the moment, I have at my disposal Android phone with Android 4.0 so I will use that to connect.

No need to write too much here, because pictures tell everything. I actually omitted the middle picture to conceive IP of my server, but adding credentials easy, just make sure you check the encryption check mark because we turned on encryption on server. You can also turn off the encryption on both server and client because it is not secure anyways, but for now it is on. Next thing, on your phone you need to go to some site that shows your ip address, like for example this one. And you should then see the IP address of the server, which means that all went well and you followed this guide correctly.

Conslusion

Poptop is probably easiest and most straightforward way to have VPN configured on your VPS. Despite that its encryption algorithm was declared insecure, usability of Poptop have been proven in numerous occasions and this VPN server has its uses. If nothing, it is good as staring point on your journey to world of Virtual Private Network software and after learning the basics you can better understand more complex solutions like OpenVPN, Softeter, StrongSWAN and the like.