Samba 3.6 on AIX 7.1 - Windows 10 Access to AIX file shares using Active Directory authentication


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# 1  
Samba 3.6 on AIX 7.1 - Windows 10 Access to AIX file shares using Active Directory authentication

I am running AIX 7.1 and currently we have samba 3.6.25 installed on the server. As it stands some AIX folders are shared that can be accessed by certain Windows users.
The problem is that since Windows 10 the guest feature no longer works so users have to manually type in their Windows login/pwd before they can access the shared drives. They get a pop up box asking them to login. Previously users were able to connect to the AIX file shares with no requirement to enter username/passwords. I do not have Kerberos installed on this server.

My requirement:
I need to reconfigure samba so that a small group of Windows users in a specific group on Active Directory can access these shared folders on AIX without the requirement to enter their login and password. Samba should recognise the user they are currently logged in as on Active Directory and allow them access to the folder if they are a member of the right access group.

My current smb.conf is as follows:

Code:
workgroup = domain
wins support = yes
security = user
log file = /var/log/samba.log
protocol = SMB2                             
min protocol = SMB2                 ## This had to be added so that Windows 10 machines can access the share as SMB1 is not supported

[File Share]
path = /filetoshare/here
force user = root
read only = no
public = yes
guest ok = no

I understand from my initial research that I need to change the security from user to ADS by setting security = ADS. This would then allow me to use Active Directory to authenticate the users. Unfortunately after checking the nmbd logs it seems that this setting is not recognised by this version of Samba 3.6...

Quote:
WARNING: Ignoring invalid value 'ADS' for parameter 'security'
Ignoring unknown parameter "realm"
It may be that Samba 3.6 does not support ADS. In this case do I have any other options with Samba 3.6 that would allow me to authenticate with the Windows Domain running on Windows Server 2012? I see there is also a server setting of domain - server = domain. I understand the AIX machine name would need to be added to the active directory server under machines I presume?

When looking at adding Samba to domains there was reference to a command "net ads -u Username" I get another error.
Quote:
ADS support not compiled in
So I presume this means I can't use the domain option either which would suggest I need a newer version of Samba.

I have checked many AIX forums but have not been able to find a pre-compiled version of samba 4 for AIX 7.1. This would be the safest way to upgrade.
Unfortunately this AIX machine does not have GCC, WGET, YUM installed so it would be difficult to compile from source. If this was Ubuntu I'd just run an apt-get install samba but AIX is a different beast.
Also can anyone confirm if I need to also install Kerberos for this to work?

I'd be interested to hear if anyone has this working. Any suggestions to help with this project would be appreciated. Thank you.

Last edited by linuxsnake; 1 Week Ago at 07:50 AM..
# 2  
Hi.. Did you search the forums before asking this question?

See, for example:


Samba 3.6.22 on AIX 7.1 with Windows AD (Kerberos and winbind)
# 3  
Hi. There's some useful information here but no references in the forum to the server = AD function not working on Samba 3.6

I've decided to download some pre-compiled RPM's for Samba 4 to install on my AIX server. Judging by the error message I saw it's as if my version of Samba was compiled without AD support... Strange.

I presume Kerberos will also need to be installed from my research of current forum posts. So I'll download these RPM's as well.

If I can get Samba 4 and Kerberos installed on AIX this should hopefully allow me to start communicating with Active Directory. Previously I've worked predominantly on Linux systems so this task would of been a lot quicker using yum or apt-get. I'll keep the post updated with progress, hopefully helping others who have this requirement.
# 4  
Samba 4 (4.10.6-1 and pretty much any earlier version) for AIX is available from IBM / AIX toolbox. You can download it directly from there assuming you have an IBM account and it is fully supported by IBM. You might need to download the corresponding dependencies as well.
# 5  
Please consider setting up the AIX Toolbox. This will give you yum and anything else IBM has in the Toolbox. Instructions are available at: ftp://ftp.software.ibm.com/aix/freeS...ppc/README-yum

It's rather painful to download/install/update rpms by hand without yum so try to avoid that.
# 6  
Thanks for the feedback. OK I'm making some progress.

So far I have

1) Upgraded RPM to latest version as I found current version of RPM did not allow me to install RPM packages I require

Downloaded rpm.rte
public - dhe - ibm com - aix - freeSoftware - aixtoolbox - INSTALLP -ppc

Ran smit and installed using software installation menu


2) Downloaded YUM package

Downloaded YUM
aix - freeSoftware - aixtoolbox - ezinstall -ppc - yum_bundle.tar

Ran smit and installed using software installation menu


Yum is now installed so tried to run yum install samba

Code:
yum install samba

Quote:
Gave errors:
Error: Package: openldap-2.4.46-2.ppc (AIX_Toolbox)
Requires: libssl.a(libssl.so.1.0.2)
Error: Package: openldap-2.4.46-2.ppc (AIX_Toolbox)
Requires: libcrypto.a(libcrypto.so.1.0.2)
Established that version of OpenSSL was too old:
Code:
lslpp -l|grep openssl
  openssl.base             1.0.1.515  COMMITTED  Open Secure Socket Layer
  openssl.man.en_US        1.0.1.515  COMMITTED  Open Secure Socket Layer
  openssl.base             1.0.1.515  COMMITTED  Open Secure Socket Layer


I downloaded Newer Version of OpenSSL from IBM's site version openssl-1.0.2.1801.tar.Z

uncompress openssl-1.0.2.1801.tar.Z
Code:
tar -xvf openssl-1.0.2.1801.tar

Installed OK via SMIT
Code:
lslpp -l|grep openssl
  openssl.base            1.0.2.1801  COMMITTED  Open Secure Socket Layer
  openssl.license         1.0.2.1801  COMMITTED  Open Secure Socket License
  openssl.man.en_US       1.0.2.1801  COMMITTED  Open Secure Socket Layer
  openssl.base            1.0.2.1801  COMMITTED  Open Secure Socket Layer


Updated Dependencies by running
updtvpkg



So I tried to run - yum install samba


Now I'm hitting some more dependency issues


Quote:
Error: Package: libstdc++-6.3.0-2.ppc (AIX_Toolbox_71)
Requires: libgcc = 6.3.0-2
Installed: libgcc-9.1.0-1.ppc (installed)
libgcc = 9.1.0-1
Available: libgcc-4.8.5-1.ppc (AIX_Toolbox_71)
libgcc = 4.8.5-1
Available: libgcc-6.3.0-1.ppc (AIX_Toolbox_71)
libgcc = 6.3.0-1
Available: libgcc-6.3.0-2.ppc (AIX_Toolbox_71)
libgcc = 6.3.0-2

So I thought maybe I need to remove the newer version of libgcc and downgrade it to 6.3.0

The problem is that if I remove the current version of libgcc this means that OPENSSL has a dependency issue... :-(
Code:
rpm -e libgcc
error: Failed dependencies:
        libgcc_s.a(shr.o) is needed by (installed) openssl-1.0.2s-1withsslv2.ppc


Last edited by vbe; 5 Days Ago at 11:51 AM.. Reason: extra code tags...
# 7  
If anyone can provide any guidance of how I can proceed with this error when I run yum install would be appreciated. This appears to be for any yum install <software> attempt
Not sure if skipping these errors would be a good idea.. I'd like to get all the dependencies fixed if I can.

Code:
yum install wget
--> Finished Dependency Resolution
Error: Package: libstdc++-6.3.0-2.ppc (AIX_Toolbox_71)
           Requires: libgcc = 6.3.0-2
           Installed: libgcc-9.1.0-1.ppc (installed)
               libgcc = 9.1.0-1
           Available: libgcc-4.8.5-1.ppc (AIX_Toolbox_71)
               libgcc = 4.8.5-1
           Available: libgcc-6.3.0-1.ppc (AIX_Toolbox_71)
               libgcc = 6.3.0-1
           Available: libgcc-6.3.0-2.ppc (AIX_Toolbox_71)
               libgcc = 6.3.0-2
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest


Last edited by vbe; 5 Days Ago at 11:49 AM.. Reason: code tags - not quotes please
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