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CentOS 4.8 |
i386 |
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pam_krb5(5) |
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pam_krb5 − Kerberos 5 authentication
pam_krb5.so reads its configuration information from the appdefaults section of krb5.conf(5). You should read the krb5.conf(5) man page before continuing here. The module expects its configuration information to be in the pam subsection of the appdefaults section.
debug=[true|false]
turns on debugging via syslog(3). Debug messages are logged with priority LOG_DEBUG.
addressless=[true|false]
if set, requests a TGT with no address information. This can be necessary if you are using Kerberos through a NAT, or on systems whose IP addresses change regularly. This directive is deprecated in favor of the libdefaults noaddresses directive.
afs_cells=cell1.example.com
tells pam_krb5.so to obtain tokens for cell1.example.com and cell2.example.com, in addition to the local cell, for the user.
banner=Kerberos
specifies what sort of password the module claims to be changing whenever it is called upon to change passwords. The default is Kerberos 5.
ccache_dir=/tmp
specifies the directory to place credential cache files in.
external=true
external=sshd ftp
tells pam_krb5.so to use Kerberos credentials provided by the calling application during session setup. This is most often useful for obtaining a krb4 ticket.
forwardable=[true|false]
controls whether or not credentials are forwardable. This directive is deprecated in favor of the libdefaults forwardable directive.
hosts=hostnames
specifies which other hosts credentials obtained by pam_krb5 will be good on. If your host is behind a firewall, you should add the IP address or name that the KDC sees it as to this list. This directive is deprecated in favor of the libdefaults extra_addresses directive.
keytab=/etc/krb5.keytab
specifies the name of a keytab file to search for a service key for use in validating TGTs.
krb4_convert=[true|false]
controls whether or not pam_krb5 tries to get Kerberos IV credentials from the KDC (or using the krb524d service on the KDC) and create ticket files with them. Unless you’ve converted everything on your network over to use Kerberos 5, you’ll want to leave this set to true. Note that this may require valid Kerberos IV configuration data to be present in /etc/krb.conf and /etc/krb.realms.
krb4_convert_524
controls whether or not pam_krb5 tries to get Kerberos IV credentials using the krb524d service. This option modifies the krb4_convert option. If disabled, pam_krb5 will only attempt to obtain Kerberos IV credentials using the KDC (unless the krb4_use_as_req option is also disabled).
krb4_use_as_req
controls whether or not pam_krb5 tries to get Kerberos IV credentials using the KDC. This option modifies the krb4_convert option. If disabled, pam_krb5 will only attempt to obtain Kerberos IV credentials using the krb524d service (unless the krb4_convert_524 option is also disabled).
minimum_uid=0
specifies the minimum UID of users being authenticated. If a user with a UID less than this value attempts authentication, the request will be ignored.
proxiable=[true|false]
controls whether or not credentials are proxiable. If not specified, they are. This directive is deprecated in favor of the libdefaults proxiable directive.
renew_lifetime=36000
default renewable lifetime. This specifies how much time you have after getting credentials to renew them. This directive is deprecated in favor of the libdefaults renew_lifetime directive.
ticket_lifetime=36000
default credential lifetime.
tokens
signals that pam_krb5.so should obtain tokens during authentication in addition to session setup. This is primarily useful in server applications which need to access a user’s files but which do not open PAM sessions before doing so.
validate=[true|false]
specifies whether or not to attempt validation of the TGT. The default is false.
[appdefaults]
pam = {
ticket_lifetime = 36000
renew_lifetime = 36000
forwardable = true
krb4_convert = true
validate = true
ccache_dir = /var/tmp
TEST.EXAMPLE.COM = {
debug = true
afs_cells = testcell.example.com othercell.example.com
}
}
/etc/krb5.conf
pam_krb5(8)
Probably, but let’s hope not. If you find any, please file them in the bug database at http://bugzilla.redhat.com/ against the "pam_krb5" component.
Nalin Dahyabhai <nalin@redhat.com>
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pam_krb5(5) | |