Upgrading KDC from 1.15 to 1.18

the right direction? Thanks in advance and best regards! Yegui Cai Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo/kerberos

iprop not working

Hi, I am running KDC inside a docker container. It seems there is an issue with iprop. The 2122 port on the master kdc for some reason is not open. I am guessing maybe some library needed by iprop is missing in my docker container. Can someone please point me in the right direction? Thank you ver

rate limiting in KDC?

Hi, May I ask a quick question? Is there any rate-limited mechanism in KDC? I am asking for two reasons. First, if there is a DoS attack, I think KDC needs to have some kind of rate-limiting to eliminate the attack. Am I right? Secondly, for performance banch marking, if there is a rate-limiting in

Perfornace bench marking

Hi, Is there some performance bench marking done against KDC. For instance, if I want to deploy a KDC server and suppose some peak traffic volume, what kind of memory/cpu resource I should provision for the server? Thanks! Yegui Kerberos mailing lis

Re: /etc/krb5.conf for IPV6

Ok, thanks! On Wed, Nov 6, 2019 at 4:04 PM Greg Hudson wrote: > On 11/6/19 2:57 PM, Yegui Cai wrote: > > It looks like we need to have brackets around IPV6 addresses inside > > /etc/krb5.conf. Am I right? It is, why would that be the case? > > Yes, you do need b

/etc/krb5.conf for IPV6

Hi, It looks like we need to have brackets around IPV6 addresses inside /etc/krb5.conf. Am I right? It is, why would that be the case? Thanks, Yegui Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo/kerberos

kpropd on non-default port

Hi community. I am trying to deploy a master and a slave KDC. Due to regulations, I need to run everything on unpriviledged ports. I have done everything except for kpropd which by default runs on 754. When I launched kpropd on port, say, 3754. Database propagation did not happen. I did try running

Re: Audit logging

In my opinion, audit logging can be a subset of the loggings KDC has. But sometimes, software can have audit loggings separately. On Thu, Jun 20, 2019 at 1:40 PM Greg Hudson wrote: > On 6/20/19 1:16 PM, Yegui Cai wrote: > > Does KDC generate audit logs by any chance? If not, would the

Audit logging

Hi community. Does KDC generate audit logs by any chance? If not, would there be any plan to do so? Thanks, Yegui Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo/kerberos

Re: Admin session expiry

requests), the expiration time of the existing TGT. > > > Examine the database entries for both kadmin/admin and your admin user. > > ---------- > *From:* Yegui Cai > *Sent:* Tuesday, March 26, 2019 1:17 PM > *To:* Jeffrey Hutzelman > *Cc:* John Devit

Re: Admin session expiry

min, for which purpose it generally needs to prompt you for a > password. The ticket it obtains is kept in memory and not ever written to a > file where you can see it, but it does exist. And, like all tickets, it > has a lifetime. > > > > ------ > *F

Admin ticket expiry does not expire consistently

5 11:53:27 ygc-kdc-master05.example.com kadmind[18654](Notice): GSS-API error strings complete. Mar 25 11:53:27 ygc-kdc-master05.example.com kadmind[18654](Error): Authentication attempt failed: 10.76.50.109, RPC authentication flavor 6 --- Do I miss something here? Thanks for an

Re: Admin session expiry

du > Subject: Re: Admin session expiry > > On Jan 13, 2019, at 1:49 AM, Greg Hudson wrote: > > > > On 1/11/19 11:08 AM, Yegui Cai wrote: > >> Any plan to add the capability of expiring admin sessions into a future > >> release? > > > > We can con

Re: Data privacy in KDC

Hi Greg. Thanks a lot for your reply. A further question regarding 3. The database files (principle, principal.kadm5) are not encrypted, am I right? Best, Yegui On Mon, Mar 4, 2019 at 12:16 PM Greg Hudson wrote: > On 3/4/19 11:45 AM, Yegui Cai wrote: > > 1. If I have multiple tenant

Data privacy in KDC

different realms? 3. If I use the default data storage (Berkeley DB if my understanding is correct), how data is encrypted at rest? Thanks a lot! Yegui Cai Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo

Re: Master-master deployment?

Awesome, thanks! On Wed, Feb 6, 2019 at 2:32 AM t Seeger wrote: > Hey Yegui, > > You can find the script here https://wp.tntnet.eu/?p=112 > There is a very short instruction too. Keep in mind that I m not a ldap or > Kerberos expert. ^^ > > Thor > > On 6. Feb 2019,

Re: Master-master deployment?

Sat, Feb 02, 2019 at 11:12:33AM -0500, Yegui Cai wrote: > > Hi Thor. > > So you have a shared ldap? If so, could that ldap be a single point of > > failure? > > > > Thanks, > > Yegui > > > > On Sat, Feb 2, 2019 at 11:10 AM t Seeger wrote: > >

Re: Master-master deployment?

Hi Thor. So you have a shared ldap? If so, could that ldap be a single point of failure? Thanks, Yegui On Sat, Feb 2, 2019 at 11:10 AM t Seeger wrote: > Hey Yegui, > > I use a mutli master setup. For the sync I use openldap. > > Greeting Thor > > On 2. Feb 2019, at 15

Master-master deployment?

Hi all. I know the official document recommend master-slave deployment for production environment. Wonder if any try to do a master-master deployment? If yes, how could you sync between two masters? Thanks, Yegui Kerberos mailing list Kerbe

Re: KDC 1.15.1 - addprinc random failure

Hi all. I just found out that the issue was caused by some race conditions when I experiment with master-master deployment. Please ignore this thread. Cheers, Yegui On Fri, Feb 1, 2019 at 11:20 AM Yegui Cai wrote: > Hi all. > > I run KDC 1.15.1. At the host, I use kadmin.local

KDC 1.15.1 - addprinc random failure

Hi all. I run KDC 1.15.1. At the host, I use kadmin.local to add a principle. Very strange that my first attempt failed silently while the second attempt succeeded. Here are the steps: [root@gamma-hactive ~]# kadmin.local Authenticating as principal hdfs/ad...@example.com with password. kadmin.lo

Re: kadmind: Cannot set GSSAPI authentication names, aborting

Sure! I built 1.16.3 under a non-default directory and configure ccache in a subdirectory. But I did not create that ccache directory. So a misleading error message was generated. On Fri, Jan 25, 2019 at 1:40 PM Robbie Harwood wrote: > Yegui Cai writes: > > > On Thu, Jan 24, 2019

Re: kadmind: Cannot set GSSAPI authentication names, aborting

I figured out it by using strace. It turned out to be a directory was missing. The error message is really confusing. On Thu, Jan 24, 2019 at 12:05 PM Yegui Cai wrote: > Hi all. > > I ran into an issue when I tried to run kadmind. The version of KDC is > 1.16.3. > I did have k

kadmind: Cannot set GSSAPI authentication names, aborting

any idea on what is going on? Thanks a lot! Yegui Cai Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo/kerberos

Re: Admin session expiry

Hi Greg. Any plan to add the capability of expiring admin sessions into a future release? Thanks! Yegui On Wed, Jan 2, 2019 at 11:30 AM Greg Hudson wrote: > On 12/28/18 12:07 PM, Yegui Cai wrote: > > Is there a way to configure KDC so that the admin session will expire if >

Unknown credential cache type while opening default credentials cache

Hi. I build KDC from source code and deploy it in a customized directory. When i run kadmin.local, it errors with a message: kadmin.local: Unknown credential cache type while opening default credentials cache Can you please provide some hints on troubleshooting? Thanks a lot! Yegui

Re: Running KDC as non-root and dockerize KDC

Hi Robbie. I ran into the case where the privileged ports are not allowed to be bindded. Do you know how I can work around this? Thanks, YC On Fri, Jan 4, 2019 at 11:14 AM Robbie Harwood wrote: > Yegui Cai writes: > > > Hi all. > > > > This can be two threads but

Re: libverto.so.0

Yes. I did run "make install" In fact, by default, at the configuration stage, system libverto will be used based on the output. How can I not to use the system verto? Thanks for your help! On Mon, Jan 7, 2019 at 10:55 AM Greg Hudson wrote: > On 1/7/19 10:29 AM, Yegui Cai wrote

libverto.so.0

Hi. I built kdc from source code. When I run kadmind it complains the missing dependency of libverto.so.0. My machine has libverto.so.1. Would it work if i create a softlink to libverto.so.1? Thanks! YC Kerberos mailing list Kerberos@mit.e

Running KDC as non-root and dockerize KDC

Hi all. This can be two threads but I have the following two questions at the same time. 1. Can we run KDC as a non-root user? Meaning is it required to run KDC as root? 2. Is there any official docker images for KDC? or any plan to have one? Thanks! Yegui

Re: Admin session expiry

Thanks for the info. On Wed, Jan 2, 2019 at 11:30 AM Greg Hudson wrote: > On 12/28/18 12:07 PM, Yegui Cai wrote: > > Is there a way to configure KDC so that the admin session will expire if > it > > keeps inactive for a period of time? > > There is not. However, if more

Admin session expiry

Hi all. Is there a way to configure KDC so that the admin session will expire if it keeps inactive for a period of time? Thanks, YC Kerberos mailing list Kerberos@mit.edu https://mailman.mit.edu/mailman/listinfo/kerberos