Hi everyone,

I’m currently facing some frustrating restrictions with the public Wi-Fi at my school. It’s an open Wi-Fi network without a password, but the school has implemented a firewall (Fortinet) that blocks access to certain websites and services, including VPNs like Mullvad and ProtonVPN. This makes it difficult for me to maintain my privacy online, especially since I don’t want the school to monitor me excessively.

After uninstalling Mullvad, I tried to download it again, but I found that even a search engine (Startpage) is blocked, which is incredibly frustrating! Here’s what happened:

  • The Wi-Fi stopped working when I had the VPN enabled.
  • I disabled the VPN, but still couldn’t connect.
  • I forgot the Wi-Fi network and reset the driver, but still no luck.
  • I uninstalled the Mullvad, and then the Wi-Fi worked again.
  • I tried to access Startpage to search for an up-to-date package for Mullvad, but it was blocked.
  • I used my phone to get the software file and sent it over, but couldn’t connect.
  • I searched for different VPNs using DuckDuckGo, but the whole site was blocked.
  • I tried searching for Mullvad, but that was blocked too.
  • I attempted to use Tor with various bridges, but couldn’t connect for some unknown reason.
  • I finally settled for Onionfruit Connect, but it doesn’t have a kill switch, which makes me uneasy.

Ironically, websites that could be considered harmful, like adult content, gambling sites and online gaming sites, are still accessible, while privacy-tools are blocked.

I’m looking for advice on how to bypass these firewall restrictions while ensuring my online safety and privacy. Any suggestions or alternative methods would be greatly appreciated! (If any advice is something about Linux, it could be a Problem, since my school enforces Windows 11 only PC’s which is really really igngamblingThanks in advance for your help

edit: did some formatting

edit2: It is my device, which I own and bought with my own money. I also have gotten in trouble for connecting to tor and searching for tor, but I stated that I only used it to protect my privacy. Honestly I will do everything to protect my privacy so I don’t care if I will get in trouble.

edit 3: Thanks for the suggestions, if I haven’t responded yet, that’s because I don’t know what will happen.

118 points

Obligatory “read your schools’ computer use policy before you get yourself in trouble for evading the firewall”

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44 points

Yeah, you probably don’t want to risk getting caught for that. There is a possibility you could be criminally charged (regardless of how stupid you might think that is, it happens) when the school finds out what you’re doing. And if you’re using school-issued hardware they’re very likely to find out what you’re doing.

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1 point

I don’t know where to find the policy regarding the network. The computer isn’t school property, I own it which is more frustrating because I have to uninstall (Just disabeling it and the Killswitch won’t work) any VPN to start using the network.

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14 points

It might be your computer, but it’s their network - they get to set the rules as to how it gets used.

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2 points
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Ask for it especially if you are getting in trouble

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57 points
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Here are some good rule of thumbs for work and schools:

  • do not connect to their networks with your personal devices, ever.

  • Only use work/ school devices on their own network.

  • Do not do anything personal on those networks. only do work/school related tasks. This means don’t log into any non school/work accounts.

  • If for some reason they don’t have a device for you but require you to use their network, then leave your personal devices at home claiming you don’t own one and make them accommodate you.

You cannot expect privacy in these situations, and by going to the extreme lengths to try to get it then you will ironically just paint a bigger target on your back if any network admin cares. In some cases this can cost you your job or get you in trouble with the school.

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30 points
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Have you tried the “stealth” protocol option ProtonVPN has?
It’s intended to bypass VPN blocks. Sometimes it works.

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3 points

Windscribe has a Websocket tunnel option. Haven’t been on a network that’s been able to block this mode yet.

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29 points
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Hi! Back in high school, me and a few close friends formed a small hacking group aimed at hacking the school WiFi. We succeeded, and reported the vulnerabilities we found along the way to the school. Our school had a policy where students who managed to hack something would be let off the hook if they reported exactly how they did it. I managed to land a job for the school district as a result of our fiasco. I don’t recommend anyone do that, but I managed to get lucky.

Anyways, once we had access to the WiFi we wanted to get around the network wide filter. Proton VPN worked for a while, but quickly got blocked. Dual booting into Tails on school computers didn’t work until the 6.0 update. To my knowledge, it still works.

However, for our phones, the thing that worked was changing the DNS. We found out the network wide filter the school boasted so highly about was only a DNS filter that resolved hostnames to a “blocked” page. Find a good PRNS and change your device’s DNS to match. If you want a search engine, try to find an unblocked SearXNG instance.

Good luck!

P.S. Don’t forget: Tor is portable on Windows devices :)

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9 points

This is the best answer. You didn’t go charging through their system with complete disregard. You made the IT staff like you first, then broke through their system. That’s social engineering at it finest here people, and is the first skill any great hacker needs to learn. Please do good with this skill.

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6 points

You want DNS over https

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25 points
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What worked for me at my old school was using a ShadowSocks proxy. Basically what this does, is it takes all your traffic and just makes it look like random https traffic (AFAIK). ShadowSocks is just a proxy. The description fits the Cloak module, mentioned below.

I believe multiple VPNs support this, for me with PIA VPN it’s in the settings under the name “Multi-Hop” (PIA only supports this on the Desktop App, not on mobile).

This technique is pretty much impossible to block, unless you ban every single VPN ShadowSocks Proxy IP. If that is the case for you (chances are practically 0), you could also selfhost ShadowSocks in combination with the Cloak module, however this method is a lot more complicated.

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13 points

This technique is pretty much impossible to block

How China Detects and Blocks Shadowsocks

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6 points

Yea, IIRC XRay is the most advanced solution for that now.

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1 point
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This seems to say it is blocked in China and Russia as well though

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3 points

And if you host your own VPN, it’s identifiable as a single destination for your connection.

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2 points
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Shadowsocks doesn’t look anything like HTTPS traffic. It looks like a bare stream cipher over TCP connections to one host with bursts of traffic. HTTPS starts off with a TLS handshake (a client hello, a server hello, the server certificate, then a cipher negotiation and key exchange) before any ciphertext is exchanged. Shadowsocks just starts blasting a ciphertext stream. Even if you run it on port 443, it looks nothing like HTTPS.

Without any sort of cipher negotiation and key exchange, it’s obvious that it’s a stream cipher with a pre shared key, so this would be automatically suspicious. There’s also not really any plausible deniability here. If they probe your Shadowsocks host and see it running there, that’s all the proof they need that you’re breaking their rules. With a VPN, you could at least say it’s for a project, and with SSH, you could say you’re just transferring files to your own machine.

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1 point

Yep my mistake, I confused ShadowSocks with Cloak.

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