Scribd
Upload
104 views4 pages

User & Group Management in Solaris

User and group management in Solaris can be performed through commands. There are two types of users - hard and soft. Hard users require root access to create and are added using useradd, while soft users can be created by any user via useradd. Groups include primary and secondary, with users assigned one primary but up to 15 secondary groups using usermod. Configuration files like /etc/passwd and /etc/shadow store user details and passwords, while /etc/group contains group information.

Uploaded by

seenuvasan1985
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as RTF, PDF, TXT or read online on Scribd
104 views4 pages

User & Group Management in Solaris

User and group management in Solaris can be performed through commands. There are two types of users - hard and soft. Hard users require root access to create and are added using useradd, while soft users can be created by any user via useradd. Groups include primary and secondary, with users assigned one primary but up to 15 secondary groups using usermod. Configuration files like /etc/passwd and /etc/shadow store user details and passwords, while /etc/group contains group information.

Uploaded by

seenuvasan1985
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as RTF, PDF, TXT or read online on Scribd
You are on page 1/ 4

User & Group Management in Solaris

User Management:

There are two types of User;

1. Hard User
2. Soft User

1. Hard User Creation: You must be root (superuser) to add a user. An easy way to
remember the syntax of the useradd command in Solaris is to run it with no
options. Follow the resulting usage information including the parts that you
require. Important options are:

-d home-directory-path

This is the new users home directory, typically /export/home/username

-m

Make home directory and copy the default skeleton files (these files are located
in /etc/skel directory).

-u uid

The uid (userid) is a number from 0 to 65535 which identifies the user on the
system. uid 0 is reserved for root. If you dont specify one, the next available uid
will be used automatically.

-c User Name

Comment field which usually contains the name of the user. Make sure you
enclose the name in quotes if it contains a space.

-s /path/to/shell

The shell to use. If you dont specify this, it will default to /bin/sh. Make sure you
specify the fully qualified path.

So, putting it together, a typical addition of a user named tushar would be:

#useradd -d /export/home/tushar -m -s /bin/ksh -c "tushar" tushar


To set Password:

Use the following command passwd tushar.

To delete Hard User use the below Command;

#userdel -r tushar

2. Soft User Creation: You must be root (superuser) to add a user. However, you
will get limited access to system by using Soft User. Simply use the below
command;

useradd "User Name"

Example: useradd tushar


Passwd tushar (To set password)

To delete Soft User use the below command;

userdel "User Name"

Example: userdel tushar

If you want to change any authorization of any User use the 'usermod' command;

#usermod -s /bin/bash tushar (To change the default shell)

Configuration files:

<!--[if !supportLists]--> i) <!--[endif]-->/etc/passwd user details will be shown here.


ii) /etc/shadow users password will be kept here in encrypted form.

Its a smart idea to run pwck (passwd check) whenever you make a change to
the /etc/passwd file (as when adding or changing a user). This program will
identify any problems with the passwd file. If it doesnt tell you anything, then
you are in good shape.

# vi /etc/passwd
# pwck
Group Management:

There are two types of Group;

<!--[if !supportLists]-->1. <!--[endif]-->Primary Group (one user can assign to


maximum one Primary Group)
<!--[if !supportLists]-->2. <!--[endif]-->Secondary Group (one user can assign to
maximum fifteen Secondary Group)

Use 'groupadd' command to add group called INVAS:

# groupadd INVAS

Create a group called VAS with GID 500:

# groupadd g 500 VAS

Add a user tushar to Primary group INVAS:

# usermod g INVAS tushar

Add a user 'tushar' to Secondary group VAS:

# usermod -G VAS tushar

Change the name INVAS to O&M:

# groupmod -n O&M INVAS

Remove the group called INVAS:

# groupdel INVAS

If you manually modified the /etc/group file then you can check any group file
inconsistencies with grpck command:

# vi /etc/group
# grpck
Configuration file:

/etc/group

You might also like