KIMPERSONATE(8)

KIMPERSONATE(8) | System Manager's Manual | KIMPERSONATE(8)

# NAME

`kimpersonate` —
impersonate a user when there exist a keyfile or KeyFile

# SYNOPSIS

`kimpersonate` | [`-s` string | `-``-ccache=`string] [`-s` string | `-``-server=`string] [`-c` string | `-``-client=`string] [`-k` string | `-``-keytab=`string] [`-5` | `-``-krb5`] [`-A` | `-``-add`] [`-R` | `-``-referral`] [`-e` integer | `-``-expire-time=`integer] [`-a` string | `-``-client-address=`string] [`-t` string | `-``-enc-type=`string] [`-``-session-enc-type=`string] [`-f` string | `-``-ticket-flags=`string] [`-``-verbose`] [`-``-version`] [`-``-help`]

# DESCRIPTION

The `kimpersonate` program creates a "fake" ticket using the service-key of the service and stores it in the given (or default) ccache. This is useful for testing. The service key can be read from a Kerberos 5 keytab or AFS KeyFile. Supported options:

`-``-ccache=`string
  ccache into which to store the ticket
`-s` string, `-``-server=`string
  name of server principal
`-c` string, `-``-client=`string
  name of client principal
`-k` string, `-``-keytab=`string
  name of keytab file
`-5`, `-``-krb5`
  create a Kerberos 5 ticket
`-A`, `-``-add`
  don't re-initialize the ccache, instead add the ticket to an existing ccache.
`-R`, `-``-referral`
  simulate a referrals-based KDC client by storing two entries, one with the empty realm for the service principal name.
`-e` integer, `-``-expire-time=`integer
  lifetime of ticket in seconds
`-a` string, `-``-client-address=`string
  address of client
`-t` string, `-``-enc-type=`string
  encryption type (defaults to "aes256-cts-hmac-sha1-96")
`-``-session-enc-type=`string
  session encryption type (defaults to enc-type or "des-cbc-crc" for afs service tickets)
`-f` string, `-``-ticket-flags=`string
  ticket flags for krb5 ticket
`-``-verbose`
  Verbose output
`-``-version`
  Print version
`-``-help`

# FILES

Uses /etc/krb5.keytab, and /usr/afs/etc/KeyFile when available and the `-k` option is used with an appropriate prefix.

# EXAMPLES

`kimpersonate` can be used in `samba` root preexec option or for debugging. `kimpersonate` -s host/hummel.e.kth.se@E.KTH.SE -c lha@E.KTH.SE -5 will create a Kerberos 5 ticket for lha@E.KTH.SE for the host hummel.e.kth.se if there exists a keytab entry for it in /etc/krb5.keytab.

In combination with the `ktutil` command, this is useful for testing. For example,

`ktutil` -k tkt add -p host/foo.test@TEST -V2 -e aes256-cts-hmac-sha1-96 -r

`kimpersonate` --cache=tcc -s host/foo.test@TEST -c jdoe@TEST -k tkt --referral

# SEE ALSO

kinit(1), klist(1)

# AUTHORS

Love Hornquist Astrand <lha@kth.se>

September 18, 2006 | NetBSD 9.5