SUMMARY: Red Hat Linux 8.0 hangs as an LDAP client when LDAPserver goes down

[Andrew Hodgetts <andrew@petrosys.com.au>]

I also have encountered the problem where no-one can login on the linux 
box if the LDAP server isn't responding.

I have adjusted the timeouts, so that when the LDAP server comes back up 
everything starts to work again, but I really need to be able to login 
to the machine (using the local file based auth) if LDAP auth fails.

I tried putting a pam_warn.so as the first item in system-auth and found 
that if the LDAP server is not available for connection, authentication 
fails without even trying anything!

I have configured the Redhat machines in the following mannor

/etc/pam.d/system-auth
auth        required      /lib/security/$ISA/pam_env.so
auth        sufficient    /lib/security/$ISA/pam_unix.so likeauth nullok
auth        sufficient    /lib/security/$ISA/pam_ldap.so use_first_pass
auth        required      /lib/security/$ISA/pam_deny.so

/etc/nsswitch.conf
passwd:     files ldap
shadow:     files ldap


Are there any suggestions as to how I can get "local" logins to work 
while LDAP is unavailable?

Thanks,
Andrew Hodgetts
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