Since Friday all of our users are seeing sporadic 302s when trying to access our in-GCP IAP protected resources. Cookies are valid, and definitely being passed with the request.
This has worked for us for two years and nothing has changed here recently past standard GKE upgrades.
Since Friday we're seeing sporadic 302s from IAP (X-Goog-IAP-Generated-Response: true) as if the cookie is invalid. I can recreate this problem using a simple curl command, with my cookie stored in a file called cookie.test.
`curl -vs -b ./cookie.test https://gitlab.mydomain.com/projects/myapp.git
This succeeds maybe 1 out of 5 times. Behaviour is very recreatable. 2 out of 5 times we'll get a response from gitlab.mydomain.com and the other 3 times we'll see a 303 to accounts.google.com. Same cookie every time, all requests within a few seconds of each other.
This is causing an enormous inconvenience for our team.
Has there been a change to IAP recently that might explain this? Do you have any other reports of similar behaviour?
Folks,
I am from the IAP team at Google. Recently IAP has made some changes to the cookie name. However, this change should have been transparent to the browser users.
For people using GCP_IAAP_AUTH_TOKEN cookie name for programmatic auth, your flows will break. The documented way to send credentials in a programmatic call is to use Authorization / Proxy-Authorization header.
https://cloud.google.com/iap/docs/authentication-howto#authenticating_a_user_account
Cookies are meant to be used for browser flows only and IAP holds complete control of the naming and format of the cookie. If you continue to use cookies to send in credentials to IAP (by reverse engineering the new format), you run a risk of being broken again by future changes in cookie name/format.
One clarification is required though. In the original post, it was mentioned that you are getting a response of 302 to accounts.google.com, is that true for browser flows also? If so, please respond back with a har file and I'll be happy to take a look.
cheers.
I have also started facing this issue since last week and have spent around 2 days troubleshooting it as initially we thought that it must be some problem on our side.
Good to know that I am not the only one facing it.
Would really appreciate some updates from Google Around it.
However, one thing I found:- There was one official blog from google around IAP:- https://cloud.google.com/blog/products/identity-security/getting-started-with-cloud-identity-aware-proxy
they have updated this blog on 19th January and removed the mention of the cookie:- GCP_IAAP_AUTH_TOKEN
However, the line they have changed is still unclear to me and very confusing
It now says :-
That token can come from either a browser cookie or, for programmatic
access, from an Authorization: bearer header.
From where will the browser cookie come, what will be its name, there is no mention around it.
Let me know if someone finds a way to get it work again.
Thanks,
Nishant Shah
I am facing a problem with logging into TFS. I get the following error:
Exception Message: TF246017: Team Foundation Server could not connect
to the database. Verify that the server that is hosting the database
is operational, and that network problems are not blocking
communication with the server. (type SoapException)SoapException
Details:
Hi the below steps worked for me.
Select Application Tier in the TFS Administration Console.
In the Application Tier Summary which contains the Service Account details.
Click Reapply Account.
I know this is old, but here was my situation:
We have 11 collections on our instance, 2 were failing with this error, showing me it wasn't an access / connection issue. Checking Event Viewer (as #Andy Li-MSFT suggests) showed it was
A timeout occurred while waiting for memory resources to execute the query in resource pool 'default' (2). Rerun the query.
Checking task manager showed the culprit - elastic search was using well over 2GB of memory. I killed the service, the collections applied the patch quickly without issue.
Looks like I need to ask our server admins to give us a bit more memory....
Please check below thing to narrow down the issue:
Make sure you are the member of the Administration Console Users.
Otherwise you cannot access the Admin Console.
Make sure the SQL Server is stated and available, and the network
connectivity is OK.
Check the Service Account, make sure the Service Account has been added in
SQL Server.
You can also refer to the solution in below link to fix the issue:
https://www.ganshani.com/alm/tfs/visual%20studio/solved-tf246017-team-foundation-server-could-not-connect-to-the-database/
If above solution can not resolve the problem, please check the Event log. The Windows Event Log is a good candidate where to look for the potential cause.
For me I've solved the issue by changing the recovery mode Simple -> Full in the database.
Please refer to: https://www.mssqltips.com/sqlservertutorial/3/sql-server-full-recovery-model/
I'm new to the Hyperion Essbase and I'm using "Hyp 6.5". Whenever I login to the Excel it shows "Essbase System Login screen". So each time I've to enter
Server Name
User Name
Password
Application/Database
Is it possible to set those values as default. So it's not prompting again and again? or is there is any plug-in's to resolve this.
Thanks in advance.
There is a utility developed by the group at IN2HYPERION called "Excel Essbase Add-in Ribbon" that will store this information. It works as an Excel add-in and will store the server, app, database, and password for connections. I'm not affiliated in any way to the site but I've used the tool for a couple years and find it to be useful and reliable. You'll need to check if it works with your version of Essbase.
Unfortunately, there is no password caching like you want. The only thing that it will store is the most recently used servers, but other than that you have to type in your user namne and password, and then it will pull up the list of Applications and Databases.
While I was following the guide http://msdn.microsoft.com/en-us/library/vstudio/jj920163.aspx to add Bugs to the task board I ran into an unexpected issue.
Adding the fields to the WIT was successful but when I started adding the form fields I received a very strange error:
Failed to save the 'Bug' Work Item Type to the server. Please contact
your administrator. There was an error contacting the server.
Technical information (for administrator): HTTP code 200: OK
Now I played around trying to find what field was causing the error... I tried every field seperatly and when added seperately they worked, then I tried adding them in pairs, this worked as well, then I tried adding all of them and even this worked!
BUT: When I try to add all of them in a clean group and column I get the error!
This leads me to believe there is some sort of maximum amount of elements in the layout form of a WIT? For now we have left all the fields added to another category but I wanted to ask if someone else had run into this issue and if there is a solution for this?
Since these are all stored as columns in a SQL Server table, the maximum you can add is 1024 (less the TFS standard, which might be around 33 columns?)
If you think this is the problem, check the Tfs_Warehouse..DimWorkItem table and see if you exceed the maximum.
Any chance you can get more information from the event viewer log on the app server, or provide more information about your bug? That message isn't very useful.
For reference -
http://blogs.msdn.com/b/eugenez/archive/2009/05/07/work-item-customization-tidbits-limits-of-complexity-part-13-of-x.aspx
Today we figured out what was going on by using fiddler and more closely monitoring the exchange between Visual Studio and our TFS server. Apparently the request was hitting the Application Firewall that was installed on the TFS server. This is the reason why you receive the vague error HTTP code 200: OK. The Application Firewall replies with a plain HTML page containing a blocked request ID (so you can pass it to your system admin). Once we passed this ID on to our networking team and they adapted the rules there was no longer an issue.
I hope this helps anyone who unexpectedly runs into an Application Firewall on your TFS server like I did.
I have an ASP.NET MVC application that I'm working on. I've been developing it on Windows Server 2003 with IIS6 and SQL 2008 Express, and everything was working great. I recently decided to try out the Windows 7 beta, so now I'm using IIS7, and have run into a problem with connectivity to my database that I can't seem to figure out.
I can run/debug the app just fine, but whenever I try to access a page that needs to access the database, I get the following error:
"Cannot open database "MyDatabaseName" requested by the login. The login failed.
Login failed for user 'IIS APPPOOL\MyApplicationName'."
I've obviously got some security configuration setup incorrectly, but I can't seem to find any good documentation on how to set it up correctly. I've tried giving NETWORK SERVICE permissions on the database, but that didn't seem to work. Anyone know what I need to do to give "IIS APPPOOL\MyApplicationName" permissions to this database? Am I missing something obvious?
Thanks...
If you are NOT using Active Directory, then ignore all of the other solutions mentioned here. The confusion stems from the new ApplicationPoolIdentity setting default in IIS 7.5+ (MS keeps changing the identity mechianisms)
Open SQL Management Studio, connect to your local machine as an admin.
Expand the Security branch.
Right click on Logins and select New Login
Into the Login Name field, type "IIS APPPOOL\MyApplicationName". Do NOT click the search button. The user profile dosn't actually exist on the local machine, it's dynamically created on demand.
While you're looking at it, don't forget to add the user to a database or a server role.
The error means the web application doesn't have access to your database. On Windows 7 / IIS 7, by default each application pool has its own user. It seems the idea is to improve security by restricting what that web application can do (in case it gets compromised and controlled from the outside). You can change what user the application pool is running under but that will defeat its own purpose. A better way seems to give the pool's user the needed permissions (and not a bit more).
On the SQL Management Studio connect to the server you want your web app to connect (tested with SQL server 2008). Go to
Security -> Log ins
right click, New Log in. In the form that comes up leave everything as default except username, where you have to type whatever username the web app is trying to use, in this case 'IIS APPPOOL\MyApplicationName'. Note that the search function of that dialog fails to find or check as valid that user, but nevertheless it works.
Still on the SQL Management Studio connected to the server go to
Databases -> *YOUR-DATABASE* -> Security -> Users
right click and New User. I'm not sure if the user name field there has any effect, I just set it the last part of the username, like MyApplicationName. Then I've set the login name to IIS APPPOOL\MyApplicationName. You can click on the ... button and use the check and search, this time it works. If you don't do the previous step, the user will not be present here. Then give it whatever permissions you want to this user, like db_datareader.
And that's it, you've given permission. If lack of permissions was your problem, then it should be solved (or at least, I've just solved it that way).
I have a total amount of 2hs of experience with IIS and about three weeks with SQL Server and less than two months with Microsoft technologies so take my advice with a grain of salt, I can be totally wrong. (If another person can confirm these are the right steps, feel free to remove the last warning).
Here is an article that explains why AppPoolIdentities are in use; basically, it's about enhanced security: http://learn.iis.net/page.aspx/624/application-pool-identities/
(That article claims I can use these virtual accounts just like any regular account but on my Windows Server 2008 that does not seem to be possible; adding e.g. IIS AppPool\DefaultAppPool just produces an error: "The following object is not from a domain listed in the Select Location dialog box, and is therefore not valid.")
Erick Falsken is right, however he is missing the User Mappings. So right click on the new
IIS APPPOOL/DefaultAppPool, click on Properties and then check boxes for:
1) databases master and yourdatabase
2) db_owner and public
This error usually means that the user that your site is running as (or more to the point the application pool), does not have permissions to use the DB. You can either check in IIS what user the pool is running under and give them permissions, or instead change your SQL connection string to not use trusted authentication and supply the credentials of a user that does have permission in the connection string.
Edit:
If you right click on the pool Identity section and go to properties, it should come up with a box that lets you either choose from 3 builtin system accounts, or specify your own account. Either give one of the builtin accounts permission for the DB, or use an account that has permission. Or leave it as is and change your connection string.
Well...changing the ApplicationPoolIdentity property and setting it to NETWORK SERVICE seems to have fixed my problems. Not sure if that's the "right" way to do things or not (as in, I'm not sure if that's the recommended way to do things in IIS7 or not), but it seems to at least be working and has gotten me past this hang-up for now. Thanks.
I'm familiar with the idea of giving permissions to the user that the application is running under...my problem is that in IIS7, the "user" seems to be virtual or something strange like that. Prior to me changing the "Identity" property of the Application Pool properties to NETWORK SERVICE, it was set to "ApplicationPoolIdentity", and the error I was getting was that "IIS APPPOOL\MyApplicationName" didn't have access to the database. When I attempted to add the "IIS APPPOOL\MyApplicationName" user to the database, it didn't appear to exist...not that I could find anyway.
So my ultimate problem is not understanding or being able to find any good documentation on how the IIS7 security model works. When I created the application, it seemed to create an AppPool with the same name just for this application. I don't know exactly what changes I need to make to give the application and/or the user it runs under privileges to the database, considering the fact that the user that the AppPool runs as doesn't appear to actually exist.
As I mentioned, changing the Identity of the AppPool to NETWORK SERVICE seems to have worked for now, but I'm trying to find out what the best practice is for this kind of thing under IIS7. Thanks.
leave the hard problems for someone else -
create a sql user and use SQL Auth. :D
If you follow Mr. Fernández' advice, you will get everything working. This is the new way of giving least privilege to a site.
So don't do the easy, less secure thing (NETWORK SERVICE). Do the right thing. Scroll up. ;)
Using Trusted Connection in Windows Authenticated Mode:
OS: windows 7 32 bit
IIS 7, Sql Server 2008 R2 Express
Connection String:
cn.open "Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=test;Data Source=mycomputername\sqlexpress;" (if instance name is sqlexpress or whatever instance name you have used)
If you are not able to connect sql server using windows mode authenticated connection to sql server 2008.
NT AUTHORITY\IUSR Account might not have permission in sql server to authorize connection with database.
Connect Sql server using windows authentication mode.
Expand Security node.
Select NT AUTHORITY\IUSR (IF NOT THERE THEN ADD NEW LOG IN FOR THAT)
Click on "User Mapping" under Select a page at Log-in properties window.
Select the database that you are trying to connect.
Select following permissions from "Database role membership for:......"
1. db_datareader 'this allows to open connection
2. db_datawriter 'this allows to fetch data records from datatable
The first step is to verify which account your website is running under. Create a simple aspx page with:
<%# Page Language="C#" %>
<% Response.Write(System.Security.Principal.WindowsIdentity.GetCurrent().Name); %>
If you're using windows authentication the WindowsIdentity account will need to have a login in your SQL Server. Under Security -> Logins -> Login New you'll want to add whatever name that was displayed by WindowsIdentity and make sure Windows authentication is selected.
If you ever happen to move your database to a separate machine you'll have to create a domain account and use impersonation in your web.config. Google <identity impersonate="true"> for more info.
If you look in the description of the field it states that running under "Network Services" account is the recommended account to use. Not sure why in Win7 it defaults to the ApplicationPoolIdentity setting.
I have the exact same issue. I'm running Windows 7 RC. When I'm trying to usa a .mdf file (located in App_Data), there is now way to make that thing work. I did try to change the AppPool's identity for LocalSystem, but it simply won't work.
If I use a "standard" database, then it will work if I'm using LocalSystem, but it won't work with the famous 'IIS APPPOOL\DefaultAppPool'.
I find it a bit disturbing not to find any information on that matter, it seems that the 'IIS APPPOOL\DefaultAppPool' user is totally useless if you are using a database of any kind...
I have it running, but I'm also bit frustrated not to understand the security model, as stated by ryexley.
yes, the app pool identity method doesn't work like they say (not in IIS7 anyway) it's supposed to. I think there are hackers at MS who make this security convoluted on purpose so you take the path of least resistance and leave your system less secure (so they can hack into it later). - just kidding, but really, their security model is pure insanity, no straightforward (step by step) instructions anywhere on MSDN - nada, zip!
I faced same problem between (SQL2008 that is installed on standalone Win-server2003 server) and (IIS6 with ASP.NET3.5 that are installed on standalone Win-server2003 server).
Where, IIS tries to access SQL2008 using some user in the domain "domain\username".
I removed following option out of connectionstring, and every thing works fine now.
Integrated Security=True;
Open SQL Management Studio, connect to your local machine as an admin.
Expand the Security branch.
Right click on Logins and select New Login
Into the Login Name field, type "IIS APPPOOL\MyApplicationName". Do
NOT click the search button. The user profile dosn't actually exist
on the local machine, it's dynamically created on demand.
Select Database in User Mapping
Select sysadmin in Server Roles