Forum Discussion
APM - show Kerberos Tickets
All,
I configured APM with a Kerberos Constrained Delegation for Kerberos SSO.
This is working so far but for debugging it would be helpfull to list all Kerberos Tickets granted.
Is there a Command that would show such entries? I only can see a summary within APM-Log but no details.
Thanks
René
Hi René,
It seems F5 stores the TGTs for Kerberos in different cache files under the "/var/run/krb5cc/*" directory. Once there, depending on your partition set, there should be a different cache file for every user account which has been "delegated".
PATH for kerberos cache files: /var/run/krb5cc/"PartitionName"/"ADAuthServerName"/
For example, in my lab:
"[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Default principal: USER1@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11
01/04/15 15:39:11 01/05/15 01:39:11 ldap/dc1.f5.lab@F5.LAB renew until 01/05/15 15:39:11
[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Default principal: USER2@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11 "
- Seth_CooperEmployee
Hi Rene,
You can use the klist command via the command prompt to view the tickets.
You can do a "man klist" to find all the options.
-Seth
- Rene_Bader_1308Altostratus
Hi Seth,
klist does not show any entries.
Thanks
- Francisco_Abel_Nimbostratus
Hi René,
It seems F5 stores the TGTs for Kerberos in different cache files under the "/var/run/krb5cc/*" directory. Once there, depending on your partition set, there should be a different cache file for every user account which has been "delegated".
PATH for kerberos cache files: /var/run/krb5cc/"PartitionName"/"ADAuthServerName"/
For example, in my lab:
"[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Default principal: USER1@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11
01/04/15 15:39:11 01/05/15 01:39:11 ldap/dc1.f5.lab@F5.LAB renew until 01/05/15 15:39:11
[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Default principal: USER2@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11 "
- Rene_Bader_1308AltostratusHi Francisco, That's it. Thanks. Best René
- Francisco_TresgNimbostratus
Hi René,
It seems F5 stores the TGTs for Kerberos in different cache files under the "/var/run/krb5cc/*" directory. Once there, depending on your partition set, there should be a different cache file for every user account which has been "delegated".
PATH for kerberos cache files: /var/run/krb5cc/"PartitionName"/"ADAuthServerName"/
For example, in my lab:
"[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_0
Default principal: USER1@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11
01/04/15 15:39:11 01/05/15 01:39:11 ldap/dc1.f5.lab@F5.LAB renew until 01/05/15 15:39:11
[] config klist /var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Ticket cache: FILE:/var/run/krb5cc/Common/portal_f5_lab_aaa_srvr/krb5cc_1
Default principal: USER2@F5.LAB
Valid starting Expires Service principal
01/04/15 15:39:11 01/05/15 01:39:11 krbtgt/F5.LAB@F5.LAB renew until 01/05/15 15:39:11 "
- Rene_Bader_1308AltostratusHi Francisco, That's it. Thanks. Best René
- SivasubramaniamNimbostratus
Hi,
I am using F5 APM version 12.1.2 and on this version, I am unable to find any kerberos ticket caches under /var/run/. Has the location changes on this version?
I have a working Kerberos SSO configuration and in /var/log/apm, I can see logs saying that TGTs have been fetched. I want to clear the credentials cache so that all tickets are re-fetched. However, I am unable to find where the kerberos tickets are stored.
Thanks!
- Stanislas_Piro2Cumulonimbus
Hi,
look in
/var/run/apmd/krb5cc/Common/'AD Auth Profile'/krb5cc_1
- JoeTheFifthAltostratus
I'm using version 12.1.3 in my lab. I just logged to a website using kerberos sso. Klist shows: klist: No credentials cache found (ticket cache FILE:/tmp/krb5cc_0) Apm log shows: Jan 19 11:13:31 F5 debug apmd[6603]: 01490023:7: /Common/CustomPolicy:Common:8b286923: AD module: ENTER Function queryActiveDirectory Jan 19 11:13:31 F5 debug apmd[6603]: 01490111:7: /Common/CustomPolicy:Common:8b286923: AD module: verifyKrb5Cache(): Ticket cache: FILE:/var/run/apmd/krb5cc/Common/labdomain/krb5cc_0 Default principal: labuseracct@labdomain.SVC Jan 19 11:13:31 F5 debug apmd[6603]: 01490111:7: /Common/CustomPolicy:Common:8b286923: AD module: verifyKrb5Cache(): server realm:labdomain.SVC princ realm:labdomain.SVC server data[0]:krbtgt server data[1]:labdomain.SVC curr time: 1516360411 end time: 1516393613 Default principal: labuseracct@labdomain.SVC
I have an encrypted file in the apmd folder. How to get a list of the cached tickets?
Recent Discussions
Related Content
* Getting Started on DevCentral
* Community Guidelines
* Community Terms of Use / EULA
* Community Ranking Explained
* Community Resources
* Contact the DevCentral Team
* Update MFA on account.f5.com