How can a Windows user's username be automatically determined upon Page_Load?
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Can a Windows user's username be automatically determined without requiring the user to login with their username and password for a Web Application? This user would have of course logged into Windows with this same Active Directory username.
What I am seeing so far is that if I have the Web Application setup in IIS connecting as the Application user (pass-through authentication) using an Application Pool with a NetworkService identity and NetworkService having Read & execute, List folder contents, and Read access, then one of three things happen:
- With Anonymous Authentication enabled and Forms Authentication enabled, the webpage returns the IIS's host name as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Anonymous Authentication enabled, ASP.NET Impersonation enabled, and Forms Authentication enabled, the webpage returns IUSR as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Windows Authentication enabled, a pop-up window asks for the user's username and password.
I am viewing Environment.UserName on Page_Load:
protected void Page_Load(object sender, EventArgs e)
{
//Set username on interface
txtUsername.Text = Environment.UserName;
}
And if I was asking the user for credentials, I would use:
//Determine if user entered the correct username and password
bool AuthenticatedViaAD = DomainContext.ValidateCredentials(loginModule.UserName, loginModule.Password);
What I am hoping to use, without asking the user for their username, is:
//Get current user
UserPrincipal currentUser = UserPrincipal.FindByIdentity(DomainContext, Environment.UserName);
Page.User.Identity.Name populates appropriate after the user enters their username and password with Windows Authentication enabled:
txtPageUser.Text = Page.User.Identity.Name;
c# windows iis active-directory
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
add a comment |
up vote
-1
down vote
favorite
Can a Windows user's username be automatically determined without requiring the user to login with their username and password for a Web Application? This user would have of course logged into Windows with this same Active Directory username.
What I am seeing so far is that if I have the Web Application setup in IIS connecting as the Application user (pass-through authentication) using an Application Pool with a NetworkService identity and NetworkService having Read & execute, List folder contents, and Read access, then one of three things happen:
- With Anonymous Authentication enabled and Forms Authentication enabled, the webpage returns the IIS's host name as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Anonymous Authentication enabled, ASP.NET Impersonation enabled, and Forms Authentication enabled, the webpage returns IUSR as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Windows Authentication enabled, a pop-up window asks for the user's username and password.
I am viewing Environment.UserName on Page_Load:
protected void Page_Load(object sender, EventArgs e)
{
//Set username on interface
txtUsername.Text = Environment.UserName;
}
And if I was asking the user for credentials, I would use:
//Determine if user entered the correct username and password
bool AuthenticatedViaAD = DomainContext.ValidateCredentials(loginModule.UserName, loginModule.Password);
What I am hoping to use, without asking the user for their username, is:
//Get current user
UserPrincipal currentUser = UserPrincipal.FindByIdentity(DomainContext, Environment.UserName);
Page.User.Identity.Name populates appropriate after the user enters their username and password with Windows Authentication enabled:
txtPageUser.Text = Page.User.Identity.Name;
c# windows iis active-directory
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
1
You should stick toPage.Userdocs.microsoft.com/en-us/dotnet/api/… asEnvironment.UserNamedoes not apply to ASP.NET in almost all cases.
– Lex Li
Nov 15 at 20:01
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14
add a comment |
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
Can a Windows user's username be automatically determined without requiring the user to login with their username and password for a Web Application? This user would have of course logged into Windows with this same Active Directory username.
What I am seeing so far is that if I have the Web Application setup in IIS connecting as the Application user (pass-through authentication) using an Application Pool with a NetworkService identity and NetworkService having Read & execute, List folder contents, and Read access, then one of three things happen:
- With Anonymous Authentication enabled and Forms Authentication enabled, the webpage returns the IIS's host name as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Anonymous Authentication enabled, ASP.NET Impersonation enabled, and Forms Authentication enabled, the webpage returns IUSR as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Windows Authentication enabled, a pop-up window asks for the user's username and password.
I am viewing Environment.UserName on Page_Load:
protected void Page_Load(object sender, EventArgs e)
{
//Set username on interface
txtUsername.Text = Environment.UserName;
}
And if I was asking the user for credentials, I would use:
//Determine if user entered the correct username and password
bool AuthenticatedViaAD = DomainContext.ValidateCredentials(loginModule.UserName, loginModule.Password);
What I am hoping to use, without asking the user for their username, is:
//Get current user
UserPrincipal currentUser = UserPrincipal.FindByIdentity(DomainContext, Environment.UserName);
Page.User.Identity.Name populates appropriate after the user enters their username and password with Windows Authentication enabled:
txtPageUser.Text = Page.User.Identity.Name;
c# windows iis active-directory
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
Can a Windows user's username be automatically determined without requiring the user to login with their username and password for a Web Application? This user would have of course logged into Windows with this same Active Directory username.
What I am seeing so far is that if I have the Web Application setup in IIS connecting as the Application user (pass-through authentication) using an Application Pool with a NetworkService identity and NetworkService having Read & execute, List folder contents, and Read access, then one of three things happen:
- With Anonymous Authentication enabled and Forms Authentication enabled, the webpage returns the IIS's host name as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Anonymous Authentication enabled, ASP.NET Impersonation enabled, and Forms Authentication enabled, the webpage returns IUSR as Environment.UserName, and therefore cannot obtain the user's username automatically.
- With Windows Authentication enabled, a pop-up window asks for the user's username and password.
I am viewing Environment.UserName on Page_Load:
protected void Page_Load(object sender, EventArgs e)
{
//Set username on interface
txtUsername.Text = Environment.UserName;
}
And if I was asking the user for credentials, I would use:
//Determine if user entered the correct username and password
bool AuthenticatedViaAD = DomainContext.ValidateCredentials(loginModule.UserName, loginModule.Password);
What I am hoping to use, without asking the user for their username, is:
//Get current user
UserPrincipal currentUser = UserPrincipal.FindByIdentity(DomainContext, Environment.UserName);
Page.User.Identity.Name populates appropriate after the user enters their username and password with Windows Authentication enabled:
txtPageUser.Text = Page.User.Identity.Name;
c# windows iis active-directory
c# windows iis active-directory
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
edited Nov 15 at 21:25
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
asked Nov 15 at 16:51
Cardi DeMonaco Jr
667
667
1
You should stick toPage.Userdocs.microsoft.com/en-us/dotnet/api/… asEnvironment.UserNamedoes not apply to ASP.NET in almost all cases.
– Lex Li
Nov 15 at 20:01
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14
add a comment |
1
You should stick toPage.Userdocs.microsoft.com/en-us/dotnet/api/… asEnvironment.UserNamedoes not apply to ASP.NET in almost all cases.
– Lex Li
Nov 15 at 20:01
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14
1
1
You should stick to
Page.User docs.microsoft.com/en-us/dotnet/api/… as Environment.UserName does not apply to ASP.NET in almost all cases.– Lex Li
Nov 15 at 20:01
You should stick to
Page.User docs.microsoft.com/en-us/dotnet/api/… as Environment.UserName does not apply to ASP.NET in almost all cases.– Lex Li
Nov 15 at 20:01
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
This is likely due to the browser security policy (If entering your windows credentials does work)
IE, and most other browsers will not submit windows auth to non-trusted, or intranet web sites as this is an obvious security risk.
Try adding the site to your trusted sites list, and see if that resolves your issue.
answered Nov 15 at 17:04
Tim
2,1341615
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
This is likely due to the browser security policy (If entering your windows credentials does work)
IE, and most other browsers will not submit windows auth to non-trusted, or intranet web sites as this is an obvious security risk.
Try adding the site to your trusted sites list, and see if that resolves your issue.
answered Nov 15 at 17:04
Tim
2,1341615
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
add a comment |
up vote
2
down vote
accepted
This is likely due to the browser security policy (If entering your windows credentials does work)
IE, and most other browsers will not submit windows auth to non-trusted, or intranet web sites as this is an obvious security risk.
Try adding the site to your trusted sites list, and see if that resolves your issue.
answered Nov 15 at 17:04
Tim
2,1341615
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
This is likely due to the browser security policy (If entering your windows credentials does work)
IE, and most other browsers will not submit windows auth to non-trusted, or intranet web sites as this is an obvious security risk.
Try adding the site to your trusted sites list, and see if that resolves your issue.
answered Nov 15 at 17:04
Tim
2,1341615
This is likely due to the browser security policy (If entering your windows credentials does work)
IE, and most other browsers will not submit windows auth to non-trusted, or intranet web sites as this is an obvious security risk.
Try adding the site to your trusted sites list, and see if that resolves your issue.
answered Nov 15 at 17:04
Tim
2,1341615
answered Nov 15 at 17:04
Tim
2,1341615
answered Nov 15 at 17:04
Tim
2,1341615
answered Nov 15 at 17:04
Tim
2,1341615
2,1341615
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
add a comment |
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Thank you Tim. I will try adding the website to Trusted Sites.
– Cardi DeMonaco Jr
Nov 15 at 17:13
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Yes, both IE and Chrome will only send Windows credentials to sites in the Trusted Sites list in Inter Options. I believe Firefox has its own list.
– Gabriel Luci
Nov 15 at 17:19
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
Also use the server's FQDN in the URL, not IP address. And check the server(s) and client(s) time are synchronized. Not sure if this is only for Kerberos, or will generally prevent pass through of Windows Integrated credential, so I thought I would mention it.
– Brian Clink
Nov 15 at 17:36
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
@Tim, the website has been added, and it appears that I am receiving the same results. I believe it may be a security safeguard preventing the functionality I was hoping to see.
– Cardi DeMonaco Jr
Nov 15 at 21:19
add a comment |
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You should stick to
Page.Userdocs.microsoft.com/en-us/dotnet/api/… asEnvironment.UserNamedoes not apply to ASP.NET in almost all cases.– Lex Li
Nov 15 at 20:01
Thank you @LexLi. I used Page.User.Identity.Name, but it only populates after entering the user's username and password (only populated for option 3 above). Is there a way for Page.User to populate without the user entering their username and password?
– Cardi DeMonaco Jr
Nov 15 at 21:14