Red Hat Summit Red Hat SummitSuporteConsoleDesenvolvedoresComeçar um testeContato

Este conteúdo não está disponível no idioma selecionado.

Chapter 6. Configuring Applications for Single Sign-On

After a smart card is enrolled, the smart card can be used for SSL client authentication and S/MIME email applications. The PKCS #11 module used by these applications, by default, is located in /usr/lib/libcoolkeypk11.so.

6.1. Configuring Firefox to Use Kerberos for Single Sign-On
Copiar o link

Firefox can use Kerberos for single sign-on to intranet sites and other protected websites. For Firefox to use Kerberos, it first has to be configured to send Kerberos credentials to the appropriate KDC.
  1. In the address bar of Firefox, type about:config to display the list of current configuration options.
  2. In the Filter field, type negotiate to restrict the list of options.
  3. Double-click the network.negotiate-auth.trusted-uris entry.
  4. Enter the name of the domain against which to authenticate.
    View larger image
  5. Next, configure the network.negotiate-auth.delegation-uris entry, using the same domain as for network.negotiate-auth.trusted-uris.

Note

Even after Firefox is configured to pass Kerberos credentials, it still requires a valid Kerberos ticket to use. To generate a Kerberos ticket, use the kinit command and supply the user password for the user on the KDC. 
[jsmith@host ~] $ kinit
Password for jsmith@EXAMPLE.COM:
Copy to Clipboard Toggle word wrap
If Kerberos authentication is not working, turn on verbose logging for the authentication process.
  1. Close all instances of Firefox.
  2. In a command prompt, export values for the NSPR_LOG_* variables: 
    export NSPR_LOG_MODULES=negotiateauth:5
export NSPR_LOG_FILE=/tmp/moz.log
    Copy to Clipboard Toggle word wrap
  3. Restart Firefox from that shell, and visit the website where Kerberos authentication is failing.
  4. Check the /tmp/moz.log file for error messages with nsNegotiateAuth in the message.
There are several common errors that occur with Kerberos authentication.
  • The first error says that no credentials have been found. 
    -1208550944[90039d0]: entering nsNegotiateAuth::GetNextToken()
-1208550944[90039d0]: gss_init_sec_context() failed: Miscellaneous failure
No credentials cache found
    Copy to Clipboard Toggle word wrap
    This means that there are no Kerberos tickets (meaning that they expired or were not generated). To fix this, run kinit to generate the Kerberos ticket and then open the website again.
  • The second potential error is if the browser is unable to contact the KDC, with the message Server not found in Kerberos database. 
    -1208994096[8d683d8]: entering nsAuthGSSAPI::GetNextToken()
-1208994096[8d683d8]: gss_init_sec_context() failed: Miscellaneous failure
Server not found in Kerberos database
    Copy to Clipboard Toggle word wrap
    This is usually a Kerberos configuration problem. The correct entries must be in the [domain_realm] section of the /etc/krb5.conf file to identify the domain. For example: 
    .example.com = EXAMPLE.COM
example.com = EXAMPLE.COM
    Copy to Clipboard Toggle word wrap
  • If there are no errors in the log, then the problem could be that an HTTP proxy server is stripping off the HTTP headers required for Kerberos authentication. Try to connect to the site using HTTPS, which allows the request to pass through unmodified.
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2026 Red HatVoltar ao topo