[Samba] Shares not accessible when using FQDN

[Rowland Penny]

On Tue, 29 Aug 2017 11:16:12 +0200 (CEST)
Gaetan SLONGO via samba <samba at lists.samba.org> wrote:

> 
> 
> Hi, 
> 
> 
> I'm facing to an issue where I cannot find solution. 
> 
> 
> Here is the test case : 
> 
> 
> 
> 
>     * Samba 4.7, multi-server setup (multiple DC) 
>     * Windows 7 and Windows 10 client (not domain member) 
>     * Shares can be listed but no access to them in some case 
> 
> 
> 
> From my workstation if I access to \\myserver.domain\myshare I get an
> error like "//UNC// is not accessible . you might nit have
> permissions ... bla bla ... The parameter is incorrect" 
> 
> 
> On my samba server we can see the log below (at the end of that
> mail). 
> 
> 
> However, it works when I do not append domain name to the UNC :
> \\myserver\myshare ... Even more strange, it works on some
> workstations but not all.. Client clients are OK. 
> 
> 
> Do you have any idea ?!? 
> 
> 
> 
> 
> 
> ==> /var/log/samba/log.smbd <== 
> [2017/08/29 10:59:55.925684,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:55.925776,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:55.926835,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:55.926892,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.088688,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.088746,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.098659,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.098717,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.104899,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.104957,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.105755,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.105811,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.106671,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.106727,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.108001,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.108058,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.109246,
> 4] ../source3/smbd/sec_ctx.c:320(set_sec_ctx_internal) setting sec
> ctx (0, 0) - sec_ctx_stack_ndx = 0 [2017/08/29 10:59:56.109401,
> 3] ../lib/util/access.c:361(allow_access) Allowed connection from
> 10.17.253.156 (10.17.253.156) [2017/08/29 10:59:56.109525,
> 3] ../source3/smbd/service.c:576(make_connection_snum) Connect path
> is '/opt/fft/actran_product' for service [software] [2017/08/29
> 10:59:56.109566, 3] ../source3/smbd/vfs.c:113(vfs_init_default)
> Initialising default vfs hooks [2017/08/29 10:59:56.109581,
> 3] ../source3/smbd/vfs.c:139(vfs_init_custom) Initialising custom vfs
> hooks from [/[Default VFS]/] [2017/08/29 10:59:56.109652,
> 3] ../source3/smbd/vfs.c:139(vfs_init_custom) Initialising custom vfs
> hooks from [acl_xattr] [2017/08/29 10:59:56.109668,
> 3] ../source3/smbd/vfs.c:139(vfs_init_custom) Initialising custom vfs
> hooks from [dfs_samba4] [2017/08/29 10:59:56.109691,
> 2] ../source3/modules/vfs_acl_xattr.c:235(connect_acl_xattr)
> connect_acl_xattr: setting 'inherit acls = true' 'dos filemode =
> true' and 'force unknown acl user = true' for service software
> [2017/08/29 10:59:56.112545,
> 4] ../source3/smbd/sec_ctx.c:320(set_sec_ctx_internal) setting sec
> ctx (531, 100) - sec_ctx_stack_ndx = 0 [2017/08/29 10:59:56.112595,
> 4] ../source3/smbd/sec_ctx.c:320(set_sec_ctx_internal) setting sec
> ctx (0, 0) - sec_ctx_stack_ndx = 0 [2017/08/29 10:59:56.112642,
> 2] ../source3/smbd/service.c:822(make_connection_snum) 10.17.253.156
> (ipv4:10.17.253.156:49202) connect to service software initially as
> user FFT\qa (uid=531, gid=100) (pid 23058) [2017/08/29
> 10:59:56.114037,
> 4] ../source3/smbd/sec_ctx.c:320(set_sec_ctx_internal) setting sec
> ctx (531, 100) - sec_ctx_stack_ndx = 0 [2017/08/29 10:59:56.114105,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.114916,
> 4] ../source3/smbd/uid.c:384(change_to_user) Skipping user change -
> already user [2017/08/29 10:59:56.114973,
> 3] ../source3/smbd/smb2_server.c:3097(smbd_smb2_request_error_ex)
> smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1]
> status[NT_STATUS_INVALID_PARAMETER] ||
> at ../source3/smbd/smb2_ioctl.c:309 [2017/08/29 10:59:56.756703,
> 4] ../source3/smbd/sec_ctx.c:320(set_sec_ctx_internal) setting sec
> ctx (0, 0) - sec_ctx_stack_ndx = 0 
> 
> 
> 
> 
> Thank you 

Go on, I give in, how have you setup Samba ? ;-)

Or to put it another way, can you please post your smb.conf.

Rowland