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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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 ...
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  • 3,554
10 votes
1 answer
76 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 ...
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  • 103
14 votes
2 answers
269 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 ...
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-10 votes
1 answer
183 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. ...
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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 ...
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  • 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)?
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11 votes
0 answers
142 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 ...
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3 votes
1 answer
43 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 ...
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16 votes
1 answer
156 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 ...
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  • 1,449
3 votes
0 answers
103 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 ...
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  • 30.6k
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 ...
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13 votes
0 answers
181 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, ...
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7 votes
0 answers
113 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 ...
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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. ...
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  • 846
32 votes
1 answer
989 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 ...
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2 votes
0 answers
189 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, ...
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2 votes
0 answers
72 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 ...
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  • 21
6 votes
1 answer
1k 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 ...
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  • 63
11 votes
1 answer
159 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 & ...
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  • 305
5 votes
1 answer
156 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 ...
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9 votes
1 answer
665 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 ...
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4 votes
1 answer
491 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 ...
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  • 25.2k
18 votes
1 answer
184 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 ...
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  • 942
6 votes
1 answer
340 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 ...
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4 votes
1 answer
52 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%...
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  • 3,431
6 votes
1 answer
1k 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 ...
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1 vote
1 answer
704 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 ...
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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 ...
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  • 3,694
1 vote
0 answers
95 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 ...
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  • 111
7 votes
1 answer
63 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, ...
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  • 8,241
1 vote
0 answers
52 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 ...
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  • 129
22 votes
0 answers
645 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 ...
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  • 271
4 votes
0 answers
660 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 ...
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  • 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 ...
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  • 33.2k
5 votes
1 answer
237 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....
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  • 433
1 vote
1 answer
201 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 ...
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  • 15.9k
2 votes
1 answer
79 views

SE Authentication server is down

It seems the SE Authentication server is down when visiting http://stackauth.com/1.0/users/123456/associated
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3 votes
1 answer
282 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, ...
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  • 169
3 votes
0 answers
165 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 ...
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1 vote
1 answer
220 views

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

I used to have a Google login, xxxx@live.com, 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 ...
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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: ...
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  • 121
1 vote
1 answer
173 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 ...
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  • 971
-1 votes
1 answer
115 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 ...
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  • 331
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?
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  • 155
4 votes
1 answer
320 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 ...
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  • 769
2 votes
0 answers
26 views

Unable to swap primary OAuth ID with a secondary one

I am on the user profile screen and am unable to swap my primary OAuth ID with a second one and a pop up shows up confirming that however when I click OK, the ID never seems to get swapped.
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  • 121
14 votes
2 answers
306 views

What does "No referrer was present" mean, and how can I log in?

I'm trying to log into chat (and now StackExchange as a whole after step 7), and I'm getting a mysterious error message: No referer was present - this may be due to a browser setting This appears to ...
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39 votes
1 answer
1k views

Storing Stack Overflow login details in local storage considered harmful

This has been brought up many times before, Search: Can't Log Out I can't get my account not to auto-login at work Why can't I log out of Stack Overflow Undesired auto-login to meta? Improve SE ...
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  • 549
1 vote
2 answers
274 views

Why can't I use my Stack Overflow account to access Android Stack Exchange?

I have a Stack Overflow account. My username is 'mdarwin' and I have the badge 'informed', whatever that means. Now I want to ask a question on Android Stack Exchange and for some reason it doesn't ...
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6 votes
1 answer
446 views

Logging in to Stack Overflow with private key

Most of the time you access Linux machines you'll use SSH with a private key. You add your public key to ~/.ssh/authorized_keys and done, you can login using your private key and passphrase. To serve ...
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  • 6,153