CentOS - Mar 2021 - tracking samba changes

> Good morning everyone.? This morning when I came in my boss said that he
> doesn't have access to the R: drive, which is a samba share to a folder
> called RP.? I looked in /etc/group and his username was not in there.?
> He's had access to this group for years, since before I was at the
> company.? Yesterday I added a new employee to two other groups, saved
> the change and exited, and I took out an old username out of a few
> groups but I did not touch my boss's username at all. Is there any kind
> of trace log that shows changes to a group or to /etc/group that tracks
> / logs all individual changes that I can trace back to what might have
> happened that's turned on in the system, to show changes to /etc/group,
> or does that only get captured through an outside backup?
>
> Chris
Hi Chris,

You didn't tell us how you've managed the users/groups. Usually this is
tracked in /var/log/secure like so:

Mar  2 09:57:42 dhcp-157 groupadd[23761]: group added to /etc/group:
name=apache, GID=48
Mar  2 09:57:42 dhcp-157 groupadd[23761]: group added to /etc/gshadow:
name=apache
Mar  2 09:57:42 dhcp-157 groupadd[23761]: new group: name=apache, GID=48
Mar  2 09:57:42 dhcp-157 useradd[23769]: new user: name=apache, UID=48,
GID=48, home=/usr/share/httpd, shell=/sbin/nologin

Regards,
Simon

Typically I just adjust who is a member of the group by editing the 
group using vi /etc/group, the Group has full rwx access to the share 
folder.? I don't see listings like your examples in /var/log/secure, but 
there are entries for ssh authentication, etc. Where do I look in the 
samba config file to find that listing?

Chris

On 3/5/2021 9:39 AM, Simon Matter wrote:
>> Good morning everyone.? This morning when I came in my boss said that
he
>> doesn't have access to the R: drive, which is a samba share to a
folder
>> called RP.? I looked in /etc/group and his username was not in there.
>> He's had access to this group for years, since before I was at the
>> company.? Yesterday I added a new employee to two other groups, saved
>> the change and exited, and I took out an old username out of a few
>> groups but I did not touch my boss's username at all. Is there any
kind
>> of trace log that shows changes to a group or to /etc/group that tracks
>> / logs all individual changes that I can trace back to what might have
>> happened that's turned on in the system, to show changes to
/etc/group,
>> or does that only get captured through an outside backup?
>>
>> Chris
> Hi Chris,
>
> You didn't tell us how you've managed the users/groups. Usually
this is
> tracked in /var/log/secure like so:
>
> Mar  2 09:57:42 dhcp-157 groupadd[23761]: group added to /etc/group:
> name=apache, GID=48
> Mar  2 09:57:42 dhcp-157 groupadd[23761]: group added to /etc/gshadow:
> name=apache
> Mar  2 09:57:42 dhcp-157 groupadd[23761]: new group: name=apache, GID=48
> Mar  2 09:57:42 dhcp-157 useradd[23769]: new user: name=apache, UID=48,
> GID=48, home=/usr/share/httpd, shell=/sbin/nologin
>
> Regards,
> Simon
>
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-- 
Christopher Wensink
IS Administrator
Five Star Plastics, Inc
1339 Continental Drive
Eau Claire, WI 54701
Office:  715-831-1682
Mobile:  715-563-3112
Fax:  715-831-6075
cwensink at five-star-plastics.com
www.five-star-plastics.com