MCYSEKA-Maritime Cyber Security Knowledge Archive

The recent news of the theft / loss of password vaults and how a hacker can do a brute force offline attack on a password vault got me thinking.

So hacker tries an incorrect password, does something mathematical fail or come back with the answer “no”?

And when they do attempt the correct password, what result comes back and says “bingo, you’re in!”?

So we have tried making a wireguard vpn on azure which works completely fine but since azure is too expensive, I got a OVHcloud vps and did the exact same thing but it doesn’t work. I cannot connect to the OVH vpn idk why. My friend is the one who setup the server on the vps and I tried connecting to the ssh but then we found out most ports are blocked on my side and seems like 80/443 are from the few that worked. Tried wireguard over 80/443 didn’t work. Tried openvpn on tcp mode over 443 didn’t work. Tried shadowsocks server over 443 even that didn’t friggin work. Oh and all these works fine for my friend over at his home and even for me over mobile data. looking at the logs, the common behaviour seems to be that the server is receiving the handshake but my client side setup cannot receive the handshake back from it therefore connection does not establish or drops right after it establishes. We are basically out of ideas as nothing seems to be working but we know we gotta be doing something wrong as all these methods seems to be used in much more heavy duty bypassing so no way my college can just block all these and the fact that just wireguard alone easily bypasses on azure. Any help would be appreciated.