I tried changing the server to use the unix permissions for security, but when I
tried to log in:

Status Code: 500
Exception:
Stacktrace:

java.lang.UnsatisfiedLinkError: Error looking up function 'getgrouplist':
ld.so.1: java: fatal: getgrouplist: can't find symbol
at com.sun.jna.Function.(Function.java:129)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:250)
at com.sun.jna.Library$Handler.invoke(Library.java:191)
at $Proxy19.getgrouplist(Unknown Source)
at org.jvnet.libpam.UnixUser.(UnixUser.java:33)
at org.jvnet.libpam.PAM.authenticate(PAM.java:110)
at hudson.security.PAMSecurityRealm$1.authenticate(PAMSecurityRealm.java:74)
at
org.acegisecurity.ui.webapp.AuthenticationProcessingFilter.attemptAuthentication(AuthenticationProcessingFilter.java:71)
at
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:252)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at
org.acegisecurity.ui.basicauth.BasicProcessingFilter.doFilter(BasicProcessingFilter.java:173)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
at
hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:66)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:155)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
at java.lang.Thread.run(Thread.java:713)

Generated by Winstone Servlet Engine v0.9.10 at Wed Apr 22 12:12:17 PDT 2009