Re: [squid-users] Kerberos authentication with multiple squids

2021-10-18 Thread Grant Taylor
On 10/17/21 10:57 AM, Grant Taylor wrote: My understanding is that you can use Kerberos from clinet0 to proxy1 and that proxy1 can use the same mechanism to get a special ticket to communicate from proxy1 to proxy2 as the original user. I looked at my copy of Kerberos - The Definitive Guide by

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-17 Thread Grant Taylor
On 10/17/21 10:46 AM, Markus Moeller wrote: I see,  I think this would mean using Basic Auth to proxy1 which then gets a Kerberos ticket for the user to authenticate to proxy2.  This is possible, but I would not think it is a good secure option. I think that we're now talking about the same fu

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-17 Thread Markus Moeller
I see, I think this would mean using Basic Auth to proxy1 which then gets a Kerberos ticket for the user to authenticate to proxy2. This is possible, but I would not think it is a good secure option. Regards Markus "Grant Taylor" wrote in message news:a2070fca-07fd-9a67-3f23-551c1fe77...@s

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-17 Thread Grant Taylor
On 10/16/21 1:31 PM, Markus Moeller wrote: I think you talk about a kdc proxy, which is for another case. I don't think so. I'm not talking about using a proxy to access the KDC. I'm talking about using a component of the following scenario: 1) Client uses traditional username and password

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-16 Thread Markus Moeller
Hi Amos, If you let me know where exactly I can add a few lines. One way to make this setup work would be to add proxy1 also to AD like proxy2 and then merge the keytab for proxy1 into the keytab of proxy2 using ktutil. The negotiate_kerberos_auth handle would require the -s GSS_C_NO_NAME

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-16 Thread Markus Moeller
I think you talk about a kdc proxy, which is for another case. Regards Markus "Grant Taylor" wrote in message news:b815528d-34ff-0fed-3194-dc6f34199...@spamtrap.tnetconsulting.net... On 10/13/21 1:48 PM, Markus Moeller wrote: The problem lies more in the way how Kerberos proxy authenticatio

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-14 Thread Grant Taylor
On 10/13/21 1:48 PM, Markus Moeller wrote: The problem lies more in the way how Kerberos proxy authentication works. The client uses the proxy name to create a ticket and in this case it would be the name of the first proxy e.g. proxy1.internal.  The first proxy will pass it through to the auth

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-14 Thread Amos Jeffries
On 14/10/21 8:48 am, Markus Moeller wrote: The problem lies more in the way how Kerberos proxy authentication works. The client uses the proxy name to create a ticket and in this case it would be the name of the first proxy e.g. proxy1.internal.  The first proxy will pass it through to the aut

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-13 Thread Markus Moeller
The problem lies more in the way how Kerberos proxy authentication works. The client uses the proxy name to create a ticket and in this case it would be the name of the first proxy e.g. proxy1.internal. The first proxy will pass it through to the authenticating proxy for authentication proxy2.

Re: [squid-users] Kerberos authentication with multiple squids

2021-10-12 Thread Amos Jeffries
On 12/10/21 9:33 pm, 森 隆聡 wrote: I made Single Sign On environment with AD+Squid and it worked fine. [It works] Client(Windows) -> Squid(CentOS) -> Internet * Client is joined the domain and Squid configured Kerberos Authentication with AD. But after add another squid, it didn't work. ...

[squid-users] Kerberos authentication with multiple squids

2021-10-12 Thread 森 隆聡
I made Single Sign On environment with AD+Squid and it worked fine. [It works] Client(Windows) -> Squid(CentOS) -> Internet * Client is joined the domain and Squid configured Kerberos Authentication with AD. But after add another squid, it didn't work. [Not works] Client -> Squid(No Auth.) ->