KCM(8) BSD System Manager's Manual KCM(8)NAME
kcm -- process-based credential cache for Kerberos tickets.
SYNOPSIS
kcm [--cache-name=cachename] [-c file | --config-file=file] [-g group | --group=group] [--max-request=size] [--disallow-getting-krbtgt]
[--detach] [-h | --help] [-k principal | --system-principal=principal] [-l time | --lifetime=time] [-m mode | --mode=mode]
[-n | --no-name-constraints] [-r time | --renewable-life=time] [-s path | --socket-path=path] [--door-path=path] [-S principal |
--server=principal] [-t keytab | --keytab=keytab] [-u user | --user=user] [-v | --version]
DESCRIPTION
kcm is a process based credential cache. To use it, set the KRB5CCNAME enviroment variable to 'KCM:uid' or add the stanza
[libdefaults]
default_cc_name = KCM:%{uid}
to the /etc/krb5.conf configuration file and make sure kcm is started in the system startup files.
The kcm daemon can hold the credentials for all users in the system. Access control is done with Unix-like permissions. The daemon checks
the access on all operations based on the uid and gid of the user. The tickets are renewed as long as is permitted by the KDC's policy.
The kcm daemon can also keep a SYSTEM credential that server processes can use to access services. One example of usage might be an nss_ldap
module that quickly needs to get credentials and doesn't want to renew the ticket itself.
Supported options:
--cache-name=cachename
system cache name
-c file, --config-file=file
location of config file
-g group, --group=group
system cache group
--max-request=size
max size for a kcm-request
--disallow-getting-krbtgt
disallow extracting any krbtgt from the kcm daemon.
--detach
detach from console
-h, --help
-k principal, --system-principal=principal
system principal name
-l time, --lifetime=time
lifetime of system tickets
-m mode, --mode=mode
octal mode of system cache
-n, --no-name-constraints
disable credentials cache name constraints
-r time, --renewable-life=time
renewable lifetime of system tickets
-s path, --socket-path=path
path to kcm domain socket
--door-path=path
path to kcm door socket
-S principal, --server=principal
server to get system ticket for
-t keytab, --keytab=keytab
system keytab name
-u user, --user=user
system cache owner
-v, --version
Heimdal May 29, 2005 Heimdal
Check Out this Related Man Page
KINIT(1) BSD General Commands Manual KINIT(1)NAME
kinit -- acquire initial tickets
SYNOPSIS
kinit [--afslog] [-c cachename | --cache=cachename] [-f | --no-forwardable] [-t keytabname | --keytab=keytabname] [-l time | --lifetime=time]
[-p | --proxiable] [-R | --renew] [--renewable] [-r time | --renewable-life=time] [-S principal | --server=principal] [-s time |
--start-time=time] [-k | --use-keytab] [-v | --validate] [-e enctypes | --enctypes=enctypes] [-a addresses |
--extra-addresses=addresses] [--password-file=filename] [--fcache-version=version-number] [-A | --no-addresses] [--anonymous]
[--enterprise] [--version] [--help] [principal [command]]
DESCRIPTION
kinit is used to authenticate to the Kerberos server as principal, or if none is given, a system generated default (typically your login name
at the default realm), and acquire a ticket granting ticket that can later be used to obtain tickets for other services.
Supported options:
-c cachename --cache=cachename
The credentials cache to put the acquired ticket in, if other than default.
-f --no-forwardable
Get ticket that can be forwarded to another host, or if the negative flags use, don't get a forwardable flag.
-t keytabname, --keytab=keytabname
Don't ask for a password, but instead get the key from the specified keytab.
-l time, --lifetime=time
Specifies the lifetime of the ticket. The argument can either be in seconds, or a more human readable string like '1h'.
-p, --proxiable
Request tickets with the proxiable flag set.
-R, --renew
Try to renew ticket. The ticket must have the 'renewable' flag set, and must not be expired.
--renewable
The same as --renewable-life, with an infinite time.
-r time, --renewable-life=time
The max renewable ticket life.
-S principal, --server=principal
Get a ticket for a service other than krbtgt/LOCAL.REALM.
-s time, --start-time=time
Obtain a ticket that starts to be valid time (which can really be a generic time specification, like '1h') seconds into the future.
-k, --use-keytab
The same as --keytab, but with the default keytab name (normally FILE:/etc/krb5.keytab).
-v, --validate
Try to validate an invalid ticket.
-e, --enctypes=enctypes
Request tickets with this particular enctype.
--password-file=filename
read the password from the first line of filename. If the filename is STDIN, the password will be read from the standard input.
--fcache-version=version-number
Create a credentials cache of version version-number.
-a, --extra-addresses=enctypes
Adds a set of addresses that will, in addition to the systems local addresses, be put in the ticket. This can be useful if all
addresses a client can use can't be automatically figured out. One such example is if the client is behind a firewall. Also set-
table via libdefaults/extra_addresses in krb5.conf(5).
-A, --no-addresses
Request a ticket with no addresses.
--anonymous
Request an anonymous ticket (which means that the ticket will be issued to an anonymous principal, typically ``anonymous@REALM'').
--enterprise
Parse principal as a enterprise (KRB5-NT-ENTERPRISE) name. Enterprise names are email like principals that are stored in the name
part of the principal, and since there are two @ characters the parser needs to know that the first is not a realm. An example of an
enterprise name is ``lha@e.kth.se@KTH.SE'', and this option is usually used with canonicalize so that the principal returned from the
KDC will typically be the real principal name.
--afslog
Gets AFS tickets, converts them to version 4 format, and stores them in the kernel. Only useful if you have AFS.
The forwardable, proxiable, ticket_life, and renewable_life options can be set to a default value from the appdefaults section in krb5.conf,
see krb5_appdefault(3).
If a command is given, kinit will set up new credentials caches, and AFS PAG, and then run the given command. When it finishes the creden-
tials will be removed.
ENVIRONMENT
KRB5CCNAME
Specifies the default credentials cache.
KRB5_CONFIG
The file name of krb5.conf, the default being /etc/krb5.conf.
KRBTKFILE
Specifies the Kerberos 4 ticket file to store version 4 tickets in.
SEE ALSO kdestroy(1), klist(1), krb5_appdefault(3), krb5.conf(5)HEIMDAL April 25, 2006 HEIMDAL