Timeline for Do I have a IP leak if I use Tor and Skype/UDP?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 3, 2016 at 15:57 | comment | added | ideloxew | @Polynomial my question number 3 (in comments) security related. Because it's about firewall, not about only Tor. Concerning other questions, I think yes, it will be better to post in Tor directory. Thanks. | |
| Jun 3, 2016 at 15:51 | comment | added | WorseDoughnut | @ideloxew if you have more Tor specific questions, try asking them in the Tor.SE site instead. | |
| Jun 3, 2016 at 15:50 | comment | added | Polynomial | This is a entirely additional question which isn't really a security question; it's a Skype configuration / computer setup question. Somewhat off topic here, and far too much to cover in the comments section. | |
| Jun 3, 2016 at 15:49 | comment | added | ideloxew | @Polynomial 3. Still have this question: it is possible to use native firewall (for example, Windows firewall) and block all connections exclude Tor? I understand that maybe this will stop Skype from working. But it’s not priority point. I afraid only leakages that can be done by Skype. | |
| Jun 3, 2016 at 15:48 | comment | added | ideloxew | @Polynomial 2. You said: «if you somehow did force Skype to tunnel through Tor (e.g. put the Skype box behind a Tor router appliance) I'm not sure Skype would even let you make a call to someone else who did the same, because you can't get direct communications between the two» If I use chain MyPC -> VPN(MyOwnVPS) -> Tor -> Proxy -> Skype can it solve this problem? Because we have 2 «normal» endpoints and Skype even doesn’t ot know that I use Tor. = continued in next comment = | |
| Jun 3, 2016 at 15:47 | comment | added | ideloxew | @Polynomial Thanks for the answer! I have a few clarifications: 1. You said: «Skype's NAT holepunching tricks explicitly try to force a direct connection between two endpoints, which is directly incompatible with how Tor works». This problem only Skype or such leakages possible in any software? If so, does this mean that Tor is insecure by design? = continued in next comment = | |
| Jun 3, 2016 at 15:00 | comment | added | Polynomial | @ideloxew Not to mention the fact that if you somehow did force Skype to tunnel through Tor (e.g. put the Skype box behind a Tor router appliance) I'm not sure Skype would even let you make a call to someone else who did the same, because you can't get direct communications between the two. | |
| Jun 3, 2016 at 14:59 | comment | added | Polynomial | @ideloxew Because Skype's NAT holepunching tricks explicitly try to force a direct connection between two endpoints, which is directly incompatible with how Tor works. On top of that you've got the problem that Skype will store historical call logs on their servers, which isn't much use if you're aiming for anonymity and privacy, especially if you've ever been logged into your Skype account on any machine that wasn't 100% locked down to only communicate through Tor. It's not a system designed for privacy or anonymity at all, and tacking Tor on top won't help you much. | |
| Jun 3, 2016 at 14:50 | comment | added | ideloxew | @Polynomial Can you explain your answer, please? Why it's not possible restrict all connections exclude Tor connections by firewall? I need use Skype for some reasons (my partners use only Skype) | |
| Jun 3, 2016 at 14:45 | comment | added | Polynomial | @ideloxew Nope. Consider an alternative communications system like Redphone. | |
| Jun 3, 2016 at 14:39 | comment | added | ideloxew | @Polynomial is any ways to solve this problem? Should I use firewall, for example and restrict all connections exclude over Tor? If yes, how to do this? | |
| Jun 3, 2016 at 13:57 | comment | added | Polynomial | The main concern is Skype's "holepunching" trick, which involves sending spoofed packets in different directions to/from a broker service in order to trick NAT routing tables into allowing direct communications between two users' clients. At best, this will stop Skype from working. At worst, it'll leak your real IP and call data outside Tor. | |
| Jun 3, 2016 at 13:45 | history | answered | WorseDoughnut | CC BY-SA 3.0 |