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This is the command ksu.heimdal that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


su — substitute user identity

SYNOPSIS


su [-K | --no-kerberos] [-f] [-l | --full] [-m] [-i instance | --instance=instance] [-c
command | --command=command] [login [shell arguments]]

DESCRIPTION


su will use Kerberos authentication provided that an instance for the user wanting to change
effective UID is present in a file named .k5login in the target user id's home directory

A special case exists where ‘root's’ ~/.k5login needs to contain an entry for:
‘user/⟨instance⟩@REALM’ for su to succed (where ⟨instance⟩ is ‘root’ unless changed with
-i).

In the absence of either an entry for current user in said file or other problems like
missing ‘host/hostname@REALM’ keys in the system's keytab, or user typing the wrong
password, su will fall back to traditional /etc/passwd authentication.

When using /etc/passwd authentication, su allows ‘root’ access only to members of the group
‘wheel’, or to any user (with knowledge of the ‘root’ password) if that group does not
exist, or has no members.

The options are as follows:

-K, --no-kerberos don't use Kerberos.

-f don't read .cshrc.

-l, --full simulate full login.

-m leave environment unmodified.

-i instance, --instance=instance root instance to use.

-c command, --command=command command to execute.

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