guillaume cornet [https://community.jboss.org/people/raoulpetitpied] created the discussion "Re: Configure AS7 to authenticate users with kerberos" To view the discussion, visit: https://community.jboss.org/message/779159#779159 -------------------------------------------------------------- Hi Antoan, I faced the same problem (e.g. 'Checksum failed'), and, in my case, I solve this error by changing the 'host' security-domain configuration. According to https://community.jboss.org/docs/DOC-16876 https://community.jboss.org/wiki/DRAFTUsingJBossNegotiationOnAS7, the 'host' security-domain should be configured like that :     <security-domain name="host" cache-type="default">         <authentication>         <login-module code="Kerberos" flag="required">             <module-option name="storeKey" value="true"/>             <module-option name="useKeyTab" value="true"/>             <module-option name="principal" value="host/testserver@MY_REALM"/>             <module-option name="keyTab" value="/home/username/service.keytab"/>             <module-option name="doNotPrompt" value="true"/>             <module-option name="debug" value="false"/>         </login-module>         </authentication>     </security-domain> In my case, the solution was to configure it like that :     <security-domain name="host" cache-type="default">         <authentication>         <login-module code="Kerberos" flag="required">             <module-option name="storeKey" value="true"/>             <module-option name="useKeyTab" value="true"/>             <module-option name="principal" value="HTTP/{testserver}"/>             <module-option name="keyTab" value="/home/username/service.keytab"/>             <module-option name="doNotPrompt" value="true"/>             <module-option name="debug" value="false"/>         </login-module>         </authentication>     </security-domain> where {testserver} is the FQDN of the machine. Cheers -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/779159#779159] Start a new discussion in JBoss AS 7 Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]