Questions tagged [openvpn]
An open source virtual private networking application written by James Yoan and published under the General Public License (GPL).
210
questions
0
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0answers
23 views
Difference between IKEv1 and IKEv2?
Can someone tell me the difference between IKEv1 and IKEv2 in terms of security functionality?
Wherever I refer it was mentioned as IKEv1 has 9 messages while IKEv2 has 4 messages, IKEv2 has less RTT ...
0
votes
1answer
92 views
How VPN works internally [closed]
The VPN is used to establish a secure connection (creating a tunnel) to another network over the Internet. It masks our IP address and geographical location and also when the information enters the ...
0
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1answer
145 views
How does openvpn work for only certain servers?
I got a *.openvpn from work and I monitored the traffic on wireshark.
On my normal vpn every traffic is routed via the vpn (as expected).
But with this work vpn only the traffic that uses the work ...
0
votes
0answers
43 views
Undetectable Proxy or VPN Protocol
Is there a safe way for creating a proxy, tunnel, or VPN that cannot be detected by the datacenter or ISPs?
I'm living in an oppressing country, but I've access to a VPS with less regulated access to ...
0
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0answers
65 views
OpenVPN: test security from external point of view
How would I test an OpenVPN environment from external, kind of black box pentest.
I have the public server-IP (port 1194, udp, tun).
I have found NO online ressources on how to do that, or whether ...
3
votes
1answer
132 views
OpenVPN Key Size 1024 vs 2048 and Eavesdrop vs Access?
OpenVPN recommends using a 2048 RSA key size for greater security, however, the hardware I'm using is somewhat weak and defaults to using a 1024 RSA key size. I'm trying to determine if it's worth ...
0
votes
1answer
367 views
Using OpenVPN on Windows instead of VPN apps: missing certificate
Sorry this might be a noob question, but I subscribed to a VPN provider which ships its own app on Windows. Now I thought I'd prefer to use the OpenVPN client app instead.
I create a profile by ...
0
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0answers
79 views
How secure is /dev/stdin in UNIX systems?
Is decrypting secrets with ccrypt and piping the result via stdin to openvpn secure?
I've written the following alias to start an openvpn client more easily than before:
sudo bash -c 'cd ...
0
votes
1answer
49 views
Which methods should I connect a VPN, via that-vpn-app or through an VPN configuration on network manager linux?
I saw there are 2 available methods (that I know of and currently focusing on) to connect to a vpn. The first one is through their application based of that vpn provider. The others is by configuring ...
0
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2answers
93 views
How to avoid leaking your public IP to installed applications like browsers when using a vpn?
What is the easiest setup to hide your public IP from installed applications and prevent things like WebRTC leaks on a common Linux distro?
0
votes
1answer
30 views
Combine router VPN with Client VPN
I would like to combine my router's default VPN with another one I run on my laptop.
Here is what I currently have :
Here is what I would like to have :
Both router (DD-WRT) and laptop use OpenVPN ...
0
votes
0answers
20 views
Does installing and routing OpenVPN DNS queries through a local resolver make any difference to the IP address seen by the eventual DNS server?
This is related to my previous question - When pushing a DNS resolver to an OpenVPN client, does the resolver see the IP address of the client or the OpenVPn server?.
If an OpenVPN server ...
0
votes
1answer
38 views
When pushing a DNS resolver to an OpenVPN client, does the resolver see the IP address of the client or the OpenVPn server?
When configuring an OpenVPN server, you have the option of pushing DNS resolvers to the client - like so:
push "dhcp-option DNS "
If this approach is used and a public DNS resolver is defined, will ...
1
vote
0answers
135 views
ecdh-curve and tls cipher do not work together
most of my question are already answered by reading in this forum, but "one last thing" is still open.
I am running a OpenVPN server with the following security characters:
SERVER (Raspbian Buster)...
1
vote
1answer
86 views
Antivirus/DPI Solution with openvpn server
I wish to set up a system that I log into with openVPN on my Raspberry Pi 4. I have already set up an openVPN server with a PKI infrastructure as well as other services that run on the Pi (like pi ...
1
vote
1answer
575 views
Block WireGuard clients' access to specific websites
I have installed a WireGuard VPN server on a Raspberry Pi (running Raspbian) using PiVPN and I would like to
either block the VPN clients to access specific websites (i.e. block them access https://...
0
votes
0answers
85 views
Opening OpenVPN to the world
I built my own private network with OpenVPN. I bought a VPS at hosting provider A(closer to home) and another two at hosting provider B(cheaper). Using openvpn I connected the two to the OpenVPN ...
0
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0answers
38 views
Unable to setup openvpn over ssh
I trying to setup SSH tunnel to mask my OpenVPN traffic from my android phone.
Both SSH and OpenVPN are running on my rpi and I using openvpn client + SSHTunnel on android.
What I can achieve is:
- ...
1
vote
2answers
109 views
Meterpreter Session over OpenVPN [closed]
Last month I made a pentesting course and now they opened a lab for us to practice before we apply for the certification exam. We connect to the lab over OpenVPN in our Kali Linux machine.
I'm trying ...
-1
votes
1answer
182 views
Does OpenVPN encrypt my traffic between my computer and VPN server?
I set up my own VPN by installing OpenVPN on a Ubuntu server, then I download client.ovpn file from Ubuntu server to my Windows laptop. And then, I import that client.ovpn to OpenVPN GUI app on ...
-4
votes
1answer
359 views
Which VPN offers more security conceptually, SSL VPN or L2TP/IPSEC?
Aside from possible implementation bugs, which VPN concept aims to offer more protection by design?
SSL VPN (implementation example - OpenVPN)
L2TP/IPSEC (implementation example - Strong Swan)
After ...
0
votes
1answer
91 views
Can't tell If The OpenVPN Server I Setup Is Encrypted using Wireshark?
This might sound dumb, but I set up an OpenVPN server on a Synology NAS. When I connect via the client at home to the server, everything works for.
I know you can read packets in Wireshark. If I ...
1
vote
1answer
526 views
How to generate an OpenVPN 4096 or 8192 bit static key?
How to create an OpenVPN static / pre-shared key with key size 4096 or 8192 bit?
openvpn --genkey
Creates 2048 bit strong keys only.
Static key. Not CA.
1
vote
1answer
274 views
How can I hide my mac address when using a public wifi? [duplicate]
As a new student of cyber security, I have started to see in real-time how an individual can actually scan and view the mac addresses on a public wifi connection.
How can I hide my mac address when ...
-4
votes
1answer
534 views
Wireguard vs. OpenVPN [closed]
Which is better in what scenario?
What cons and pros do they have? (optional question)
Which is more secure? (optional question)
Best use case of each one?
Isn't WireGuard based on OpenVPN?
1
vote
1answer
470 views
Tunnel Openvpn traffic through ssh?
I know similar question have been asked but none of them are explained thoroughly.
I have setup a VPS and setup openvpn using https://github.com/Nyr/openvpn-install on tcp and port 443(I have access ...
1
vote
1answer
81 views
If I use a VPN, can an enterprise proxy insert itself in the middle?
I'm using the guest Wi-Fi at a large corporation, and connecting to a commercial VPN provider via the OpenVPN client. I do not know one way or another if a proxy is used on the guest wi-fi, but I ...
0
votes
1answer
336 views
For security purposes, can I use vpn with ufw to allow traffic only from the vpn on ubuntu?
Is this possible? If not through ufw then some other software or iptables? How should I set up the ip tables?
Assuming my public ip is known (and I don't want to change it), would it provide complete ...
2
votes
1answer
2k views
how to force openvpn client to use TLS instead of SSL connection [duplicate]
i'm trying to use openvpn client to connect TLS VPN server
here is my .ovpn file
client
tls-client
dev tun
proto tcp
remote example.com 443
resolv-retry infinite
auth-user-pass
persist-key
...
0
votes
1answer
161 views
Is it safe to use RPC with sensitive data through an encrypted VPN connection instead of SSL/TLS?
I have an application where there I'm planning the following setup:
user <-----------------> layer 1 server <------------------> backend server
internet (https) ...
0
votes
1answer
406 views
What's the drawback of enabling auth-nocache in OpenVPN?
Using a "default" configuration, OpenVPN clients show the following warning when connecting to a VPN server in red, attention-seeking letters:
WARNING: this configuration may cache passwords in ...
2
votes
2answers
2k views
What are the risks of installing a CA on the same machine as OpenVPN server?
Digital Ocean states in one of it's tutorial about OpenVPN server :
While it’s technically possible to use your OpenVPN server or your
local machine as your CA, this is not recommended as it ...
2
votes
1answer
336 views
Meterpreter and OpenVPN
During a meterpreter session, is it possible to deliver a payload that creates a connection request to a local OpenVPN connection? For example:
I have a payload. Whenever that payload runs on the ...
0
votes
1answer
882 views
Are ARP attacks possible on OpenVPN and Wireguard connections?
I am curious if it is possible for users connected to a VPN to perform ARP spoofing / poisoning attacks against other users on the same subnet of an OpenVPN or Wireguard server. Does OpenVPN & ...
2
votes
0answers
97 views
Loosing internet connection while connected to specific VPN server?
I have noticed a strange behaviour earlier today on my VPN on a specific server.
When I run a trace route command while connected to VPN (on a specific countries server) my internet will not work for ...
1
vote
1answer
152 views
Is my VPN leaking or is this normal?
Hi when I am not connected to my VPN and do a route print I get one 0.0.0.0 entry in the Network Destination column. It has a gateway of 192.....
When I connect to my VPN and do a route print I get ...
0
votes
0answers
531 views
Filter/Block OpenVPN clients' access to a specific website
As stated in the title I would like to restrict VPN clients' access to specific websites.
More specifically, I push the route for 5 websites to the clients via the server config. However, I would ...
1
vote
3answers
332 views
Using a VPN for privacy?
Say I am only using a vpn for privacy (as is recommended by many people, especially on public wifi etc). How I understand it is that many people are using the same servers and have the same ip online.
...
1
vote
1answer
2k views
Why is my VPN behaving like this and should I be concerned?
I recently started using NordVPN and have noticed something strange.
Sometimes when I connect to the VPN service in my system tray it will show a wifi connection and other times an ethernet ...
-2
votes
1answer
1k views
Is Private Internet Access (PIA) VPN safe to use? [closed]
As said in the PIA website they pretend to have the following VPN features:
PPTP, OpenVPN and L2TP/IPSec
SOCKS5 Proxy Included
No traffic logs
So my question are: Is Private Internet Access VPN ...
7
votes
6answers
3k views
Difference between SSH Tunnel / Proxy and VPN in terms of security
What benefits does a VPN have over just using a regular SSH Tunnel?
I'm considering setting up OpenVPN on a server, but was wondering what benefits that would have over just using that same server as ...
0
votes
3answers
1k views
Does a self-hosted VPN (openvpn) at home encrypt traffic for my ISP? [duplicate]
Title says it all.
If I host my own VPN at home (using openvpn), and connect my devices to it, will my ISP be able to see the contents of my traffic?
2
votes
1answer
301 views
Can a VPN server be traced through Tor?
I was wondering that if my data was intercepted by Tor by an exit node, would they be able to see which VPN server is being used to encrypt the data.
I am asking because I planned on making an OpenVPN ...
1
vote
2answers
2k views
How does Netflix tell I'm behind a vpn managed with OpenVPN but not other managers?
I run Ubuntu 18.04 and use a VPN service. If I use OpenVPN to manage the connection and connect to a given server, then I can browse the internet as if I'm from that location, except for Netflix, ...
0
votes
1answer
687 views
watch DNS queries while using OpenVPN.-
I want to monitor/sniff the DNS queries I make while I'm using a VPN connection with my OpenVPN client.
My initial motivation was to check if I'm leaking DNS queries; then using this page it seems I'm ...
2
votes
1answer
202 views
OpenVPN configuration and ISP's DNS
I have configured OpenVPN server for using Clouflare DNS - 1.1.1.1. I use OpenVPN connection in the next way: sudo openvpn --config Config.ovpn on my local machine in WiFi network.
My ISP provider ...
2
votes
1answer
626 views
OpenVPN one account multiple servers & Load Balancing
I have recently been experimenting with OpenVPN. My aim is to create a group of servers in different locations with a single username and password for each user stored in a central database. For ...
7
votes
1answer
2k views
Can personal VPN help protecting my behavior on the company laptop?
Update:
I don't care if the company knows I'm using a private VPN (this is allowed and confirmed with the IT department). My only concern is if the company knows I visited nba.com (for example).
On ...
0
votes
1answer
640 views
Limit OpenVPN client certificate to specific VPN with shared CA chain
I've created a private x509 pki structure with openssl that consists of a self signed Root CA, an Intermediate CA and two Signing CA's. The signing CA's are used to separate the signing of ...
2
votes
1answer
250 views
OpenVPN client can still connect to the server after client's tls-auth key has changed
I'm currently getting familiar with OpenVPN by building and testing some client–server infrastructure using VMware workstation.
This is what I've recently noticed: if you manually change some values ...
