Questions tagged [authentication]

For questions about how authentication within the Stack Exchange network works. General questions about authentication are off-topic, but depending on the specific question may find a home at e.g. Stack Overflow or Security Stack Exchange.

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Log in using MFA? [duplicate]

Is there a way to add 2FA or MFA to my existing Stack Exchange login, or I do have to add a GitHub, Google, etc. login? I tried searching the help and looking around the settings, but I couldn't see ...
rhughes's user avatar
  • 181
13 votes
0 answers
350 views

I keep getting logged out of Stack Overflow

This has been reported quite a few times over the years, both with Chrome and Firefox (and maybe others, I did not read all the comments). Since it is driving me crazy (but it's not like there is an ...
JonasVautherin's user avatar
-6 votes
1 answer
98 views

Question based on Authentication

I am creating a connector which will integrate with the Stack Overflow API. I need to generate an access token of Stack Overflow account so that I can fetch its API. But when I am generating an access ...
user20040276's user avatar
23 votes
1 answer
356 views

OpenID endpoints and URL will be removed on November 1, 2022

Back in 2018, we announced the end of support for OpenID at Stack. Although we've deprecated support for OpenID logins and endpoints, the openid.stackexchange.com URL has remained online. Starting in ...
Jeremiah Peschka's user avatar
6 votes
0 answers
80 views

Why am I occasionally logged in to different domains, or am I?

When I log out, I usually get a message saying I will be logged out of these seven domains: Notwithstanding the fact I don't know what most of these are, nor consciously visit any of them apart from ...
Rick's user avatar
  • 2,140
5 votes
0 answers
94 views

Top navbar not updated when login session is invalidated

tl;dr When editing existing post after your session has been invalidated in the background, editor itself reflects the fact that user has been logged-off, but top navbar remains unchanged and still ...
trejder's user avatar
  • 4,011
10 votes
1 answer
126 views

What scope to supply to get a refresh token from Stack Exchange?

In the process of implementing a OAuth app for Stack Exchange, I noticed that none of the approaches that conventionally work - supplying a offline_access scope, for example - result in the OAuth ...
Benn's user avatar
  • 103
23 votes
2 answers
637 views

Did something change with Stack Exchange's cross-domain login process? (no longer working)

I have my web browser set to block all third-party cookies. The only place where this is an issue is on Stack Exchange sites, where it prevents a log in action on one site from successfully logging ...
RockPaperLz- Mask it or Casket's user avatar
-10 votes
1 answer
192 views

Support logging in with Apple

Title explains all. SE currently supports logging in with GitHub, Google and Facebook. In terms of tracking user behavior, Apple seems to be a better login option to me than Google and Facebook. ...
displayName's user avatar
1 vote
1 answer
58 views

Cannot login using Google authentication [closed]

For some reason, I'm not able to login to an of the SE sites using Google authentication today. Did something change? PS. I had to create a direct login on SE using my other e-mail id to report this ...
sv2's user avatar
  • 49
0 votes
0 answers
38 views

Redirect to the original page after authorization on SEDE [duplicate]

After authorization, https://data.stackexchange.com redirects to the main page. Could you redirect to the original page (from which I've tried to log in)?
Suvitruf - Andrei Apanasik's user avatar
11 votes
0 answers
150 views

Google auth seems broken

I can't seem to login using my Google account. Luckily I still have an active session on the main things I care about but when I log into anything with my Google auth, I get: There was an error ...
Daniel A. White's user avatar
3 votes
1 answer
47 views

SEDE login authentication

I have the impression that SE's login is universal. Once logged into any one of the sites on the SE network, one can enter other sites without further login. For example, I'm logged into Math.SE, so ...
GNUSupporter 8964民主女神 地下教會's user avatar
16 votes
1 answer
159 views

Will Google+ APIs shutting down affect signing in into Stack Exchange sites?

According to this article, Google+ APIs will shut down on March 7, 2019. Since I am using Google to provide authentication for several web sites (SE sites included), I am wondering if SE network will ...
Alexei's user avatar
  • 1,469
3 votes
0 answers
104 views

Got invalid certificate error trying to log in [closed]

I got an invalid certificate error for stackauth.com a few minutes ago when trying to log in to SuperUser via Google. I tried again (after taking a screenshot and blacking out the potentially ...
Kip's user avatar
  • 31k
3 votes
0 answers
80 views

Network Login Troubleshooting fails on Messaging whereas Caniuse.com tests positive

A couple of months ago, I was forced to switch to the Vivaldi browser which I do happen to like a lot. The Vivaldi browser might be considered the spiritual successor to the Opera browser, sharing ...
Serge Stroobandt's user avatar
15 votes
0 answers
192 views

Stack Exchange & Area 51 sign up/ log in update

As of today, Stack Exchange and Area 51 no longer have separate login and signup pages. When you log in or sign up on either site you will be sent through meta.stackexchange.com flow. Currently, ...
Joe Friend's user avatar
  • 16.5k
7 votes
0 answers
114 views

Logging in to the Area 51 Discussion Zone will successfully log you into the main Area 51 site, but not the Discussion Zone itself

In the Area 51 Discussion Zone (DZ), the log in link is for area51.stackexchange.com, not area51.meta.stackexchange.com. Because of domain restrictions, etc., after successfully logging in you get ...
curiousdannii's user avatar
4 votes
0 answers
44 views

Port not included in client-side OAuth flow

I was recently making an app using the SE API's client-side auth flow. What I noticed is that there was this Unable to post message to http://localhost. Recipient has origin http://localhost:5000. ...
Downgoat's user avatar
  • 856
35 votes
1 answer
1k views

How does one Stack Exchange site know that I'm logged in to the other?

Here's what I did: Completely cleared my browser of all cookies Opened a new browser window in Incognito mode Navigated to askubuntu.com and log in Opened a new tab and navigate to stackoverflow.com ...
CodyBugstein's user avatar
2 votes
0 answers
193 views

Is it still possible to log into Stack Exchange using an AOL OpenID?

I am posting from a new account I have created, as I have been unable to access my Stack Exchange account for several days. My account is tied to my AOL OpenID exclusively. For quite some time, ...
user avatar
2 votes
0 answers
75 views

Redirect parameter `state` is missing in case of error

Testing OAuth authorization in my app I noticed a case when state parameter is not passed to redirect uri. I use state to track auth process at server side. If user doesn't authorize application, he ...
dmig's user avatar
  • 21
6 votes
1 answer
2k views

Authentication API - port number in redirect_uri is ignored

We're using the API explicit flow for identity brokering in our Keycloak SSO server to provide users with the option for logging in using their Stack Overflow account. Recently, we've noticed that ...
vasam's user avatar
  • 63
11 votes
1 answer
170 views

Can't remove applications

A couple days ago I added a application from StackApps, now for some reason I can't remove it. Steps to reproduce: Have an application on your account Go to your profile (Edit Profile & ...
André's user avatar
  • 305
5 votes
1 answer
159 views

Using oAuth in API throwing internal server error

My application has 26 users, but yesterday several (prospective) users started receiving an error page (/error?aspxerror=/oauth) saying that it is all [stack exchange's] fault and that the data is ...
Watchtower's user avatar
10 votes
1 answer
733 views

Is stackauth.com still in use?

Once upon a time, stackauth.com was used for global authentication, for the API, etc. And the StackAuth home page still states: This is a domain for centralized services across the entire Stack ...
Awesome Poodles's user avatar
4 votes
1 answer
532 views

API authentication channelUrl from a userscript?

The Stack Exchange API has this Javascript library for authentication. What do I pass as channelUrl for a user script running on SE sites? The docs said it needed to be "a blank page on the same ...
Jason C's user avatar
  • 25.9k
18 votes
1 answer
190 views

Don't tell me which of my credentials is wrong

If I mistype my username or password when logging in to Stack Exchange, the red dialogue box tells me which was incorrect. If an attacker correctly guesses an email address present in the database ...
cat's user avatar
  • 969
6 votes
1 answer
392 views

Enable two-step verification for all Stack Exchange sites [duplicate]

I have two-step verification (via Google Authenticator) enabled for almost all of my accounts on the Internet. I somehow feel safe with that. I have enabled two-step verification for almost all my ...
abhimanyuaryan's user avatar
4 votes
1 answer
57 views

Join this Community bug on Area51

When I clicked on the "Join This Community" banner on an area 51 question, I was redirected to the following page: https://area51.stackexchange.com/users/join?ssrc=head&returnurl=http%3a%2f%...
KyleMit's user avatar
  • 6,048
7 votes
1 answer
2k views

Where and how is the authentication cookie stored with the new authentication system?

My browser is configured with several cookie restrictions (clear cookies on exit, no third party cookies, and privacy badger on top of that). I found that after SE recently switched to a new ...
Federico Poloni's user avatar
1 vote
1 answer
749 views

How is user information stored in ElasticSearch database of Stack Exchange network?

How is user information stored in the ElasticSearch database of the StackExchange network? I know that SO and the other websites of the same family use ElasticSearch database to store the data, but ...
Gianluca Ghettini's user avatar
1 vote
0 answers
41 views

Use the login on StackExchange.com in other SE sites [duplicate]

I am logged in on StackExchange.com, I want to login on another SE site without entering a password. Why do I have to choose a third party provider? Isn't using cookies possible for subdomains? I see ...
Nemo's user avatar
  • 4,122
1 vote
0 answers
97 views

Authentication with google as well as direct login

I have my stackexchange account with google authentication. But in some net work gmail is blocked. So is there any way to maintain the same account with dual authentication.Like google login as well ...
guru's user avatar
  • 111
7 votes
1 answer
68 views

Links between my SE accounts should bypass login

When I get a notification in my inbox in the upper left corner about an event on one of the SE sites other than the one I am logged into, frequently I have to login again. This is mildly annoying, ...
tripleee's user avatar
  • 13.3k
1 vote
0 answers
53 views

Messaging failed - doesn't give more info. as to what to do about it [duplicate]

I am opening this so that if I run into the same situation would perhaps know what to do as well as others. I am trying to login to sites and most sites work except for some meta sites. For this I ...
shirish's user avatar
  • 129
26 votes
0 answers
875 views

Why do I keep getting logged out of Stack Overflow?

I keep on getting logged out of Stack Overflow on my personal computer. This can happen even when I've been logged in earlier in the same day. It used to be that I'd never get logged out of SO (which ...
Noah's user avatar
  • 311
4 votes
0 answers
670 views

StackExchange Single Sign on

What is the technique or procedure used in implementing Single Sign On in StackExchange websites? Whether it is possible to implement custom authentication providers so that the site credentials can ...
Arun S's user avatar
  • 141
85 votes
1 answer
7k views

"OpenID 2.0 for Google Accounts is going away"; will this affect Stack Exchange? [closed]

Apparently, for some reason, Google is retiring its OpenID 2.0 platform. I got this notice while logging in with Disqus, but not with Stack Exchange. So... is Stack Exchange going to be affected by ...
badp's user avatar
  • 33.5k
5 votes
1 answer
252 views

How can I "authenticate" my Stack Exchange API app without OAuth authenticating it?

I am the creator of StackStalker, a Chrome extension created to simply monitor questions a user chooses and be notified when they've been updated. I've been working on updating it to use the new API 2....
Jason's user avatar
  • 433
1 vote
1 answer
209 views

Unable to login to iOS beta using Facebook

When trying to login to the iOS beta app (1.0.1.80) I get the following error message: This happens before being offered the opportunity to enter my Facebook credentials (although I'm logged into ...
Matt's user avatar
  • 16k
2 votes
1 answer
80 views

SE Authentication server is down

It seems the SE Authentication server is down when visiting http://stackauth.com/1.0/users/123456/associated
user avatar
3 votes
1 answer
283 views

How does StackExchange chain its subdomains?

I'd like to know how StackExchange works? Is it just one installation which is divided to different parts or they use a separated installation for each subject? Askubuntu.com, tex.stackexchange.com, ...
mini's user avatar
  • 169
3 votes
0 answers
170 views

Unable to login with my personal OpenID server ("Message signature was incorrect.")

I realise this could be seen as a duplicate but I've skimmd through the top dozen results and can't find anything comparable. I've run my own (very simple) OpenID server at christopher.woods.name for ...
Chris Woods's user avatar
1 vote
1 answer
225 views

Primary email on Google changed, now I can't log into Stack Overflow

I used to have a Google login, [email protected], which I used to log into Stack Overflow with. Recently, I bought a tablet and had to create a Gmail account. This then replaced my primary email for ...
user avatar
0 votes
0 answers
28 views

Authentication with openid.stackexchange.com fails with firefox [duplicate]

Since todays morning, I got an exception, if I like to login to any stackexchange site using openid.stackexchange.com with Firefox. (It works with Chrome ...) I can login to openid.stackexchange.com: ...
t777's user avatar
  • 121
1 vote
1 answer
174 views

Cannot login to some sites due to auto-login failing

Autologin prevents me from logging into some SE sites. Here is what is happening: visit https://superuser.com/; the top line says Stack Exchange ... sign up ... log in (i.e., I am not logged in ...
sds's user avatar
  • 1,048
-1 votes
1 answer
116 views

Steps (with screen shots) to merge MyOpenID account into social network accounts/email providers accounts [duplicate]

If you have taken the time to merge your MyOpenID StackOverflow (and StackExchange) account into a social network account such as Google or Facebook, can you describe the workflow (maybe with screen ...
JustBeingHelpful's user avatar
0 votes
1 answer
89 views

Why do Meta and Stack Overflow requires separate authentication

Why do Meta and Stack Overflow require separate authentication? Why auth details are not shared between all the Stack Exchange sites?
Andrei's user avatar
  • 155
4 votes
1 answer
344 views

How do you log in from work using your personal account while you are already logged into Google?

I have a personal Stackoverflow account with points and stuff. I want to log in with that. I normally authenticate with Google. My work uses Google apps and I have a Google work address. How do I ...
Chloe's user avatar
  • 781