Onion-þjónustur

How do I know if I'm using v2 or v3 onion services?

You can identify v3 onion addresses by their 56 character length, e.g. Tor Project's v2 address:http://expyuzz4wqqyqhjn.onion/, and Tor Project's v3 address: http://2gzyxa5ihm7nsggfxnu52rck2vv4rvmdlkiu3zzui5du4xyclen53wid.onion/

If you're an onion service administrator, you must upgrade to v3 onion services as soon as possible. If you're a user, please ensure that you update your bookmarks to the website's v3 onion addresses.

What is the timeline for the v2 deprecation?

In September 2020, Tor started warning onion service operators and clients that v2 will be deprecated and obsolete in version 0.4.6. Tor Browser started warning users in June, 2021.

In July 2021, 0.4.6 Tor will no longer support v2 and support will be removed from the code base.

In October 2021, we will release new Tor client stable versions for all supported series that will disable v2.

You can read more in the Tor Project's blog post Onion Service version 2 deprecation timeline.

Can I keep using my v2 onion address? Can I access my v2 onion after September? Is this a backward-incompatible change?

V2 onion addresses are fundamentally insecure. If you have a v2 onion, we recommend you migrate now. This is a backward incompatible change: v2 onion services will not be reachable after September 2021.

What is the recommendation for developers to migrate? Any tips on how to spread the new v3 addresses to people?

In torrc, to create a version 3 address, you simply need to create a new service just as you did your v2 service, with these two lines:

HiddenServiceDir /full/path/to/your/new/v3/directory/
HiddenServicePort <virtual port> <target-address>:<target-port>

The default version is now set to 3 so you don't need to explicitly set it. Restart tor, and look on your directory for the new address. If you wish to keep running your version 2 service until it is deprecated to provide a transition path to your users, add this line to the configuration block of your version 2 service:

HiddenServiceVersion 2

This will allow you to identify in your configuration file which one is which version.

If you have Onion-Location configured on your website, you need to set the header with your new v3 address. For technical documentation about running onion services, please read the Onion Services page in our Community portal.

I didn't see the announcement, can I get more time to migrate?

No, v2 onion connections will start failing nowish, first slowly, then suddenly. It's time to move away.

Will services start failing to be reached in September, or before already?

Already, introduction points are not in Tor 0.4.6 anymore, so they will not be reachable if relay operators update.

As a website administrator, can I redirect users from my v2 onion to v3?

Yes, it will work until the v2 onion address is unreachable. You may want to encourage users to update their bookmarks.

Are v3 onion services going to help in mitigating DDoS problems?

Yes, we are continuously working on improving onion services security. Some of the work we have in our roadmap is ESTABLISH_INTRO Cell DoS Defense Extension, Res tokens: Anonymous Credentials for Onion Service DoS Resilience, and A First Take at PoW Over Introduction Circuits. For an overview about these proposals, read the detailed blog post How to stop the onion denial (of service).

Onion-Location is a HTTP header that web sites can use to advertise their onion counterpart. If the web site that you're visiting has an onion site available, a purple suggestion pill will prompt at the URL bar saying ".onion available". When you click on ".onion available", the web site will be reloaded and redirected to its onion counterpart. At the moment, Onion-Location is available for Tor Browser desktop (Windows, macOS and GNU/Linux). You can learn more about Onion-Location in the Tor Browser Manual. If you're an onion service operator, learn how to configure Onion-Location in your onion site.

Vefsvæði sem einungis eru aðgengileg í gegnum Tor eru kölluð "onion-vefir" og enda með TLD-viðskeytinu .onion. Til dæmis er onion-svæði DuckDuckGo á https://duckduckgogg42xjoc72x3sjasowoarfbgcmvfimaftt6twagswzczad.onion/. Þú getur skoðað þessi vefsvæði með Tor-vafranum. Þú verður að fá vistfangið á slíkum vef frá þeim sem standa að vefnum, þar sem onion-vefsvæði koma ekki fram í leitarvélum eins og venjuleg vefsvæði gera.

An authenticated onion service is an onion service that requires you to provide an authentication token (in this case, a private key) before accessing the service. The private key is not transmitted to the service, and it's only used to decrypt its descriptor locally. You can get the access credentials from the onion service operator. Reach out to the operator and request access. Learn more about how to use onion authentication in Tor Browser. If you want to create an onion service with client authentication, please see the Client Authorization section in the Community portal.

Jahá! Hægt er að skoða lista yfir okkar eigin Onion-þjónustur á onion.torproject.org.

Ef þú nærð ekki tengingu við onion-þjónustuna sem þú þarft, gakktu fyrst úr skugga um að þú hafir sett 56-stafa onion-vistfangið rétt inn: minnstu mistök munu koma í veg fyrir að Tor-vafrinn nái sambandi við vefsvæðið. Ef þér tekst ekki enn að tengjast onion-þjónustunni, prófaðu þá aftur síðar. Það gæti verið tímabundið tengivandamál í gangi, nú eða að rekstraraðilar vefsvæðisins hafi tekið það úr sambandi án aðvörunar.

Þú getur gengið úr skugga um hvort hægt sé að ná sambandi við aðrar onion-þjónustur með því að tengjast við onion-þjónustu DuckDuckGo.

Onion-þjónustur gera fólki kleift að vafra nafnlaust en einnig til að birta efni án auðkenningar, til dæmis vefsvæði.

Onion services are also relied on for metadata-free chat and file sharing, safer interaction between journalists and their sources like with SecureDrop or OnionShare, safer software updates, and more secure ways to reach popular websites like Facebook.

Þessar þjónustur nota hið sérstaka efsta-stigs viðskeyti (TLD) .onion (í stað .com, .net, .org, o.s.frv.) og eru einungis eru aðgengilegar í gegnum Tor-netkerfið.

Þegar tengst er við vefsvæði sem notar onion-þjónustu, birtir Tor-vafrinn í slóðastikunni táknmynd af litlum lauk sem stendur fyrir ástand tengingarinnar: örugg og notar onion-þjónustu.

To learn more about onion services, read How do Onion Services work?

When browsing an Onion Service, Tor Browser displays different onion icons in the address bar indicating the security of the current webpage.

Hugtakið 'onion' þýðir:

• The Onion Service is served over HTTP, or HTTPS with a CA-Issued certificate.
• The Onion Service is served over HTTPS with a Self-Signed certificate.

Onion laukur með rauðu skástriki þýðir:

• The Onion Service is served with a script from an insecure URL.

Onion laukur með aðvörunarmerki þýðir:

• The Onion Service is served over HTTPS with an expired Certificate.
• The Onion Service is served over HTTPS with a wrong Domain.
• The Onion Service is served with a mixed form over an insecure URL.