Renew Kerberos ticket.
List cached Kerberos tickets.
$ klist
Ticket cache: KEYRING:persistent:10000:krb_ccache_Nv2FjQZ
Default principal: octo@OCTOCAT.LAB
Valid starting Expires Service principal
10/03/2021 18:06:02 10/04/2021 04:06:02 krbtgt/OCTOCAT.LAB@OCTOCAT.LAB
renew until 10/04/2021 18:06:02
This ticket is valid till 4th October 04:06 and can be renewed up to 4th October 18:06, but it needs to be done before it expires.
Requests renewal of the ticket.
$ kinit -R
On 3rd October 22:24 the ticked was extended till 4th October 08:24.
$ klist
Ticket cache: KEYRING:persistent:10000:krb_ccache_Nv2FjQZ
Default principal: octo@OCTOCAT.LAB
Valid starting Expires Service principal
10/03/2021 22:24:16 10/04/2021 08:24:16 krbtgt/OCTOCAT.LAB@OCTOCAT.LAB
renew until 10/04/2021 18:06:02
After the expiration date, the ticket cannot be renewed as I mentioned earlier.
$ date
Mon 04 Oct 2021 09:03:20 AM CEST
$ kinit -R
kinit: No credentials cache found while renewing credentials
Obtain and cache new Kerberos ticket.
$ kinit
Password for octo@OCTOCAT.LAB: **********
That is all.
