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Questions tagged [openvpn]

Free software implementing virtual private networks (VPN). **Important:** This tag is exclusively for programming-related questions, NOT for general questions on configuring or using VPNs; questions about general network and server administration should be directed to Server Fault, and questions about general software use should be directed to Super User.

OpenVPN is an open source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or username/password.

In contrast to traditional VPN which uses IPSec/IP protocol (with which many home routers and firewalls have issues), it uses TLS over TCP/IP and UDP/IP protocols.

Read more about OpenVPN at Wikipedia..

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Connect to an OpenVPN server from an Azure Cloud Service client

I have a few machines on my office that can connect to a server that uses OpenVPN (UDP), given its .ovpn file. I'm also able to connect to that same server from my personal computer, which is in another network. I'm also able to connect to that…
Paulo Barros
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Build OpenVPN with custom openssl binaries (no sources)

I've seen posts on compiling OpenVPN with custom OpenSSL version. I tried them and they perfectly worked with the latest version of OpenVPN-2.3.11 and OpenSSL 1.0.2h. However in all those cases the source code of the OpenSSL was available. My…
Nurjan
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Not receiving GCM push notification when VPN is connected in my Android Phone

I am developing an android application & have implemented the GCM push notifications.Everything is working fine.I am sharing the internet connection of my PC in my android phone.I have a proxified net so either I have to connect VPN in my PC & then…
hemdroid
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Custom OpenVPN client does not receive TLS ServerHello

I'm writing a simple OpenVPN client (with Python & Scapy & [scapy-ssl_tls] ) which should connect to OpenVPN server. I open UDP socket in Python and with Scapy I define my own OpenVPN layer on top of UDP (according to OpenVPN specs) and send packets…
Tomas
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Apache/OpenVPN access restriction

I'm Working on a developpement server where i've set a Virtualhost in order to make Zend Framework work has it's meant to. Problem is, I'm working with people who have dynamic ips: so I can't restrict (allow from) specific access for everyone. I've…
Oleiade
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How to bypass sip or rtp voip traffic in blocked networks using open vpn?

I am newbie in openvpn,We are using openvpn android application to route Our VoIP traffic using Android. In our application we are using sip / rtp port. We are using free openvpn account from this Our vpn is successfully created but still we are…
Hemdip
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How can add my own hash(digest) algorithm to openssl

I want to use my own hash algorithm in openvpn config. I think I should define it in openssl (library), and I look at MD5 algorithm as an example to see how it is defined. I did something like what is done for MD5 but my algorithm isn't added yet! I…
Peggy
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Bash script truncates output files at 4096 bytes

I'm writing a script to automate the creation of OpenVPN certificates, to add new clients to the VPN system. I'm building a small webpage (all internal and not approachable from the Internet) to allow users to input a client name, and out comes a…
Robert
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"Bad LinkAddress params" message when trying to connect to OpenVPN that happens only on Android Lollipop

I'm experiencing a problem that seems to be identical to the one described here: https://forums.openvpn.net/topic17851.html - namely I have a home OpenVPN server set-up that I can successfully connect to with my Linux machines and with Android…
emacsomancer
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Does OpenSSL 1.0.1h also suffer from POODLE attack like SSL 3.0 suffers?

SSL 3.0 library suffers from POODLE attack. OpenSSL's latest version is 1.0.1h as of now. Does OpenSSL also suffer from the same attack ? I couldn't find any related info either on google or OpenSSL forum. I use a openvpn android client which uses…
Shravan
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openvpn client centos7 requires dev >= 3.3.2-5

I'm trying to install openvpn client on a server in the office running centos 7 using yum install openvpn but it errors saying openvpn-2.3.2-2.el6.x86_64 (epel) Requires: dev >= 3.3.2-5 I have no idea how to resolve this. What is the…
Martin McInnes
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connect to a device behind firewall with low data traffic

I am developing a connected device with a raspberry pi over a 3G connection. My 3G offer gives me a 50 MB max data usage as a limit. I want to be able to exchange very small amount of data with the raspberry Pi from the Internet (eg ~5 kB per day)…
alexislg
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Does the OpenVPN Connect App have an intent/receiver to add new vpn profiles?

I am trying to find a solution to control vpn connections within an android app I build. I could find the following results so far: Since Android version 2.3.x it is not possible to control android's vpn client through intents. VpnService provides…
ashiaka
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Build OpenVPN with custom OpenSSL

I'm trying to build openvpn-2.3.4 with the latest openssl-1.0.1h. I compiled openssl from sources /usr/openssl-1.0.1h with --prefix=/opt/custom-openssl. Then I configured openvpn sources with next line: ./configure --prefix=/opt/custom-openvpn…
beardmeaning
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How to set domain name for server inside an OpenVPN-based VPN?

I am currently using a very simple OpenVPN setup where I connect from different devices to a OpenVPN server and then access a website that is being hosted by an Apache Server running on the same system. To reach that server, I have to use its IPv4…
user1136324
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