Instalasi OpenVPN di Centos

Berikut langkah-langkah instalasi OpenVPN community edition pada Centos 6.4.

1. Menambahkan Fedora repository supaya kita bisa menginstall OpenVPN :
   # wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
   # rpm -Uvh epel-release-6-8.noarch.rpm
2. Menginstall OpenVPN:
   # yum install openvpn -y

   Jika ingin melihat file-file hasil instalasi bisa dilakukan:
   # rpm -ql openvpn

3. Copy contoh configuration ke /etc/openvpn
   # cp /usr/share/doc/openvpn-2.3.2/sample/sample-config-files/server.conf /etc/openvpn
4. Instalasi easy-rsa:
   # yum install easy-rsa

   Untuk melihat file-file hasil instalasi:
   # rpm -ql easy-rsa

5. Pembuatan certificate
   # mkdir -p /etc/openvpn/easy-rsa/keys
   # cp -rf /usr/share/easy-rsa/2.0/* /etc/openvpn/easy-rsa
   # cd /etc/openvpn/easy-rsa/
   # vi vars
   # . ./vars
   # ./clean-all
   # ./build-ca
   # ./build-key-server server
   # ./build-key client1
   # ./build-key client2
   # ./build-key client3
   # ./build-dh
6. Copy certificate ke /etc/openvpn
   # cd /etc/openvpn/easy-rsa/keys
   # cp dh1024.pem ca.crt server.crt server.key /etc/openvpn
7. Menstart openvpn
   # service openvpn start
8. Membuat auto start saat boot openvpn:
   # chkconfig openvpn on

Referensi:
1. http://openvpn.net/index.php/open-source/documentation/howto.html
2. https://www.digitalocean.com/community/articles/how-to-setup-and-configure-an-openvpn-server-on-centos-6 .

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