{"id":464,"date":"2024-08-08T17:01:33","date_gmt":"2024-08-08T10:01:33","guid":{"rendered":"https:\/\/nbvps.anhtuanlqd.com\/?p=464"},"modified":"2025-01-09T10:02:46","modified_gmt":"2025-01-09T03:02:46","slug":"install-openvpn-in-ubuntu-20","status":"publish","type":"post","link":"https:\/\/nbvps.anhtuanlqd.com\/?p=464","title":{"rendered":"Install Openvpn in Ubuntu 20"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>#!\/bin\/bash\n\n# Update package lists\nsudo apt-get update\n\n# Install necessary packages\nsudo apt-get install -y openvpn easy-rsa\n\n# Create the OpenVPN server directory\nsudo mkdir -p \/etc\/openvpn\/server\n\n# Generate the server certificates and keys\ncd \/etc\/openvpn\/server\nsudo cp -r \/usr\/share\/easy-rsa\/ .\nsudo .\/easy-rsa\/easyrsa init-pki\nsudo .\/easy-rsa\/easyrsa build-ca nopass\nsudo .\/easy-rsa\/easyrsa gen-dh\nsudo .\/easy-rsa\/easyrsa build-server-full server nopass\n\n# Generate the client certificates and keys\nsudo .\/easy-rsa\/easyrsa build-client-full vpn nopass\n\n# Generate the TLS auth key\nsudo openvpn --genkey --secret ta.key\n\n# Generate the OpenVPN server configuration\ncat &lt;&lt; EOF | sudo tee \/etc\/openvpn\/server\/server.conf\nport 1194\nproto udp\ndev tun\nca \/etc\/openvpn\/server\/pki\/ca.crt\ncert \/etc\/openvpn\/server\/pki\/issued\/server.crt\nkey \/etc\/openvpn\/server\/pki\/private\/server.key\ndh \/etc\/openvpn\/server\/pki\/dh.pem\nserver 10.8.0.0 255.255.255.0\npush \"route 10.8.0.0 255.255.255.0\"\npush \"dhcp-option DNS 8.8.8.8\"\npush \"dhcp-option DNS 8.8.4.4\"\nkeepalive 10 120\ntls-auth \/etc\/openvpn\/server\/ta.key 0\ncipher AES-256-CBC\nuser nobody\ngroup nogroup\nEOF\n\n# Generate the client username and password\necho \"vpn:Toitudo04!\" | sudo tee \/etc\/openvpn\/server\/creds.txt\n\n# Create the client configuration directory\nsudo mkdir -p \/root\/vpn\n\n# Copy the necessary files to the client directory\nsudo cp \/etc\/openvpn\/server\/pki\/ca.crt \/root\/vpn\/\nsudo cp \/etc\/openvpn\/server\/pki\/issued\/vpn.crt \/root\/vpn\/\nsudo cp \/etc\/openvpn\/server\/pki\/private\/vpn.key \/root\/vpn\/\nsudo cp \/etc\/openvpn\/server\/ta.key \/root\/vpn\/\n\n# Generate the client configuration file\ncat &lt;&lt; EOF | sudo tee \/root\/vpn\/vpn.ovpn\nclient\ndev tun\nproto udp\nremote &lt;server_ip_or_domain> 1194\nresolv-retry infinite\nnobind\npersist-key\npersist-tun\nca \/root\/vpn\/ca.crt\ncert \/root\/vpn\/vpn.crt\nkey \/root\/vpn\/vpn.key\ntls-auth \/root\/vpn\/ta.key 1\ncipher AES-256-CBC\nEOF\n\n# Start the OpenVPN server\nsudo systemctl enable openvpn-server@server\nsudo systemctl start openvpn-server@server\n\necho \"OpenVPN server has been installed and configured.\"\necho \"The necessary files for the 'vpn' client have been copied to \/root\/vpn\/\"<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[50,2,23],"tags":[43,92,38],"class_list":["post-464","post","type-post","status-publish","format-standard","hentry","category-command","category-linux","category-tips-and-trick","tag-openvpn","tag-script","tag-ubuntu"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/posts\/464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=464"}],"version-history":[{"count":1,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/posts\/464\/revisions"}],"predecessor-version":[{"id":465,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=\/wp\/v2\/posts\/464\/revisions\/465"}],"wp:attachment":[{"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbvps.anhtuanlqd.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}