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Full Discussion: Solaris 10 groups
Operating Systems Solaris Solaris 10 groups Post 302976480 by cjhilinski on Wednesday 29th of June 2016 04:32:33 PM
Old 06-29-2016
Solaris 10 groups
I have a Solaris 10 system inherited from several previous admins. While trying to decipher a permissions issue, I ran "grpck" and it reported a ton of errors. Among them were these:
1. group name too long
2. group name contains illegal characters (special chars or caps)
3. group membership duplicated (for example, the LDAP server contains a group named bosco with user Joe and there is a local group in /etc/group called bosco with user Joe.

While grpck reports these as errors/problems, how serious is it? Should it be fixed immediately? Is it causing problems I can't see? Or does Solaris really only care about the GID and the name attached to that GID is just a convenience for humans? Anyone think of any "gotchas" that could result from fixing the length/characters/etc. in /etc/group or LDAP?
 

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LEARN ABOUT MOJAVE

grpck

grpck(1B)                                            SunOS/BSD Compatibility Package Commands                                            grpck(1B)

NAME

       grpck - check group database entries

SYNOPSIS

       /etc/grpck [filename]

DESCRIPTION

       The grpck utility checks that a file in group(4) does not contain any errors; it checks the /etc/group file by default.

FILES

       /etc/group

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       groups(1), group(4), passwd(4), attributes(5)

DIAGNOSTICS

       Too many/few fields

           An entry in the group file does not have the proper number of fields.

       No group name

           The group name field of an entry is empty.

       Bad character(s) in group name

           The group name in an entry contains characters other than lower-case letters and digits.

       Invalid GID

           The group ID field in an entry is not numeric or is greater than 65535.

       Null login name

           A login name in the list of login names in an entry is null.

       Logname not found in password file

           A login name in the list of login names in an entry is not in the password file.

       Line too long

           A line (including the newline character) in the group file exceeds the maximum length of 512 characters.

       Duplicate logname entry

           A login name appears more than once in the list of login names for a group file entry.

       Out of memory

           The program cannot allocate memory in order to continue.

       Maximum groups exceeded for logname

           A login name's group membership exceeds the maximum, NGROUPS_MAX.

SunOS 5.10                                                          10 Jan 2000                                                          grpck(1B)
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