Ah, thanks Markus, that’s what I was looking for. Andrew yes, the service account has been created now, I am more interested in the “what if” we didn’t change things. I suppose this is the result of ~4 years of technical debt on our part!
Thanks, Richard From: gpfsug-discuss-boun...@spectrumscale.org <gpfsug-discuss-boun...@spectrumscale.org> On Behalf Of Markus Rohwedder Sent: 04 September 2018 14:41 To: gpfsug main discussion list <gpfsug-discuss@spectrumscale.org> Cc: gpfsug-discuss-boun...@spectrumscale.org Subject: Re: [gpfsug-discuss] CES file authentication - bind account deleted? Hello. the user name should not matter for operations beyon domain join. mmuserauth man page: --user-name userName .... In case of --type ad with --data-access-method file, the specified username is used to join the cluster to AD domain. It results in creating a machine account for the cluster based on the --netbios-name specified in the command. After successful configuration, the cluster connects with its machine account, and not the user used during the domain join. So the specified username after domain join has no role to play in communication with the AD domain controller and can be even deleted from the AD server. The cluster can still keep using AD for authentication via the machine account created. Mit freundlichen Grüßen / Kind regards Dr. Markus Rohwedder Spectrum Scale GUI Development ________________________________ Phone: +49 7034 6430190 IBM Deutschland Research & Development [cid:image002.png@01D4445D.C716BB30] E-Mail: rohwed...@de.ibm.com<mailto:rohwed...@de.ibm.com> Am Weiher 24 65451 Kelsterbach Germany ________________________________ [Inactive hide details for "Andrew Beattie" ---04.09.2018 15:18:43---Hi Richard,]"Andrew Beattie" ---04.09.2018 15:18:43---Hi Richard, From: "Andrew Beattie" <abeat...@au1.ibm.com<mailto:abeat...@au1.ibm.com>> To: gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org> Cc: gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org> Date: 04.09.2018 15:18 Subject: Re: [gpfsug-discuss] CES file authentication - bind account deleted? Sent by: gpfsug-discuss-boun...@spectrumscale.org<mailto:gpfsug-discuss-boun...@spectrumscale.org> ________________________________ Hi Richard, If you are setting up Protocol authentication against the active directory, would you not choose to use a service account that isn't going to get deleted? If you choose to use an user account of a Sys Admin who has Domain admin privileges and they leave the company and their account is deleted, you would almost certainly have issues with the Scale cluster trying to validate users permissions and having scale get an error from AD when the credentials that it uses are no longer valid. Andrew Beattie Software Defined Storage - IT Specialist Phone: 614-2133-7927 E-mail: abeat...@au1.ibm.com<mailto:abeat...@au1.ibm.com> ----- Original message ----- From: "Sobey, Richard A" <r.so...@imperial.ac.uk<mailto:r.so...@imperial.ac.uk>> Sent by: gpfsug-discuss-boun...@spectrumscale.org<mailto:gpfsug-discuss-boun...@spectrumscale.org> To: "'gpfsug-discuss@spectrumscale.org'" <gpfsug-discuss@spectrumscale.org<mailto:gpfsug-discuss@spectrumscale.org>> Cc: Subject: [gpfsug-discuss] CES file authentication - bind account deleted? Date: Tue, Sep 4, 2018 8:45 AM Hi all, I don’t like using long subject lines as a rule so it probably doesn’t make sense, but consider: FILE access configuration : AD PARAMETERS VALUES ------------------------------------------------- ENABLE_NFS_KERBEROS true SERVERS domaincontroller.ic.ac.uk USER_NAME joeblo...@ic.ac.uk<mailto:joeblo...@ic.ac.uk> NETBIOS_NAME store IDMAP_ROLE master IDMAP_RANGE 10000000-299999999 IDMAP_RANGE_SIZE 1000000 UNIXMAP_DOMAINS IC(500 - 2000000) LDAPMAP_DOMAINS none If “joebloggs” was to leave the organization and that account deleted from Active Directory, what is the impact on file authentication in CES? Thanks Richard _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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