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The goal of the project is to create VPN servers that are behind a router that blocks incoming connections.

$3000-5000 USD

Cerrado
Publicado hace casi 5 años

$3000-5000 USD

Pagado a la entrega
Just like in a normal VPN application, when you connect to the VPN server you can send and receive network packets using the IP address of the VPN server (and perhaps also access shared network drives), but the biggest difference here is that you cannot just connect to an open/filtered port as on a normal server! The VPN servers will be ordinary home or work computer devices that have firewalls and can be behind a NAT. Assume that you can connect to the internet on these VPN servers, but that they have no dedicated open incoming ports (such as port 1701,1194, 80, 443, etc.) and you can’t change the router configuration. So You have to forward packets between the VPN server and the clients through a relay server. Some things to consider in this project are TCP/UDP hole punching and the TUN/TAP virtual network interface.
ID del proyecto: 20090190

Información sobre el proyecto

10 propuestas
Proyecto remoto
Activo hace 5 años

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10 freelancers están ofertando un promedio de $3.560 USD por este trabajo
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Hello! I would like to help you with this task. So if you need to create VPN servers, which located behind firewall (in home or office networks) - to access them we have to use public relay server. So I suggest you this scheme: Internet client -> Public relay server in data center with public static IP <- home vpn servers So we can just connect both sides to the same public relay server and after that internet client will be able to access home\office based VPN server. And it does not matter what firewall you have in those homes\offices. We can use public OpenVPN server on 443 port, and of course connection from home server to 443 port will be allowed. I suggest you to use OpenVPN, it's strong, flexible and good VPN protocol. About my experience: I have big experience with network administration (VLAN, SNAT, DNAT, iptables, iproute2, multiWAN, tcpdump...), managed switches, routers... A lot of experience with OpenVPN servers/clients. TUN\TAP networks, complex routing for separate clients. Serial connection 2,3 servers for more security. OpenVPN over IPv6 and other... My other skills and reviews you can see in my profile. Hope for cooperation! Thank you!
$3.000 USD en 3 días
5,0 (54 comentarios)
5,5
5,5
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Hi how are you? I hope you are doing well. I am Network and System Engineer with over 6 years of professional experience. I read the description of your project and I have completed this kind of task before, you can check in my reviews. Please contact me so I can start working on it. I am looking forward to working with you soon. Thanks
$3.000 USD en 7 días
5,0 (52 comentarios)
5,2
5,2
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Hi! It's nice to meet you. I'm Matías and have the same configuration like your request used to jump the firewall limits in one data center where we have installed our servers because they limit the TCP incoming ports, so to solve this we need to create an alternative node(s) to forward the traffic back to this node listening from another server in the same location with low latency to not affect the services in it. I'm deployed the same network including GCP instances and works really well.
$3.000 USD en 5 días
4,9 (24 comentarios)
4,8
4,8
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Greeting If you just need to connect to computer behind NAT, then can be solved with private VPN hub. Users (as many as you want) logging in the hub, and can connect each other
$4.000 USD en 7 días
4,9 (8 comentarios)
3,0
3,0
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Hello! I have briefly read the description on The-goal-the-project-create development project, and I can deliver as per the requirements however I need us to discuss for more clarity on the details, deadline and budget as well. I reach out to see whether the opportunity is still available. If the job’s no longer available, I’d appreciate you throwing my hat into the ring for any similar opportunities in the future. Here is my url: https://www.freelancer.com/u/VirtualBrainInc . Thank you for your time, I look forward to hearing from you soon, Best Wishes, Kevin M
$3.000 USD en 4 días
5,0 (3 comentarios)
2,3
2,3
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Hello there! My name is Chris, I'm a UK based and native English speaking web developer and app expert with 10 years experience building and maintaining complex web apps and websites. I've built and maintained applications/sites for large companies such as Coca Cola, Deutsche Bank, Easy Jet, Barclays, Vogue, Menzies, NHS, My specialist skills include: PHP, Javascript , MYSQL, Bootstrap, SEO, Digital Marketing, Laravel, IONIC, WooCommerce, Moodle, WordPress, Drupal, New Website Builds, Search Marketing, Graphic Design, NGINX, Apache2. I'm highly motivated, results driven and personable individual with a keen eye for details and getting projects finished in a quick timescale, whilst still delivering a world class customer experience. Chris Fairman
$5.000 USD en 17 días
3,0 (1 comentario)
2,8
2,8
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Hi, We have gone through the project description and analyzed your requirement. As per our understanding, you need a server engineer. We have vast experience in managing Datacenter based on VMware ESXi servers. Currently, we are managing a few Datacenters in Canada. We have been in IT infrastructure services for recent 7+ years with high expertise and experiences. We are working on multiple Canadian projects. We are managing In-house datacenter, server, network performance & security, firewall management, Virtual platforms (VMware, Hyper-V, Citrix ). We are serving high quality and 100 percent satisfied services to our clients. (to view our clientele, visit on our website) We have a CISCO, Microsoft, and VMware certified technical team with high-level technical exposure. Our Tech. expertise: Windows AD, DNS, DHCP, IIS, Azure Services, AWS, VLAN, Trunking, MPLS, VPN, Routing & Switching, Fiber/ iSCSI networking, NAS and SAN storage Array Config.,Router configuration, Layer2 & 3 Switch management, Remote Support, Network, and PC Security, Network/Server Troubleshooting and performance Optimization, ESXi, vCentre, vMotion, Hyper-V, Live Migration. For further discussion, you can ping a message to me.
$4.000 USD en 7 días
5,0 (2 comentarios)
0,4
0,4
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Hello, how happy to work for you I would like to have more information about the server operating system, type of vpn, vpn hardware ... I have more than 20 years of experience thanks
$3.000 USD en 3 días
0,0 (0 comentarios)
0,0
0,0
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Information/Network Security engineer with over 8 years of experience in IT industry, which includes expertise in the areas of Routing, Switching, Firewalls management, VPN management, cisco ISE Wired 802.1x, MAB and wireless NAC solution, Network Design, Architect & Administration. Currently working atAmerican Airlines as a VPN and Firewall Lead. Have extensive experience in building, managing & troubleshooting VPN issues for both B2B and B2C VPNs
$3.600 USD en 7 días
0,0 (0 comentarios)
0,0
0,0

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Bandera de UNITED STATES
Seattle, United States
0,0
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Miembro desde jun 24, 2019

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