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Full Discussion: Power Machine password
Operating Systems AIX Power Machine password Post 303034190 by Neo on Sunday 21st of April 2019 01:33:45 AM
Old 04-21-2019
Yes, I know it is AIX, since this is the AIX forum Smilie

You can easily Google for the answer to such a simple question.

Quote:
The HMC is a PC connected to the mainframe. zSeries mainframes prior to the IBM System z9 used a modified version of OS/2 with custom software to provide the interface. System z9's HMC no longer uses OS/2, but instead uses a modified version of Linux with an OS/2 lookalike interface to ease transition as well as a new interface. Unlike the previous HMC application on OS/2, the new HMC is web-based which means that even local access is done via a web browser. Remote HMC access is available, although only over an SSL encrypted HTTP connection. The web-based nature means that there is no longer a difference between local console access and remote access, which means a remote user potentially has full control if authorized, allowing more flexibility for locating systems within data centers. IBM refers to the new HMC as a "closed platform" which does not allow the user to install software or access the command line interface to increase security and stability. The HMC is also firewalled by default with a minimal number of open ports for remote access.
 

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hosts.equiv(4)						     Kernel Interfaces Manual						    hosts.equiv(4)

NAME
hosts.equiv - A file containing the names of remote systems and users that can execute commands on the local system SYNOPSIS
/etc/hosts.equiv DESCRIPTION
The /etc/hosts.equiv file and the .rhosts file in a user's home directory contain the names of remote hosts and users that are equivalent to the local host or user. An equivalent host or user is allowed to access a local nonsuperuser account with the rsh command or rcp com- mand, or to log in to such an account without having to supply a password. The /etc/hosts.equiv file specifies equivalence for an entire system, while a user's .rhosts file specifies equivalence between that user and remote users. The local user and the target system exist in the same area as the hosts.equiv file. The .rhosts file must be owned by the user in whose home directory the file is located, or by the superuser. It cannot be a symbolic link. Each line, or entry, in hosts.equiv or .rhosts may consist of the following: A blank line. A comment (begins with a #). A host name (a string of any printable characters except newline, #, or white space). In addition, an NIS netgroup can be specified in place of the host name. A host name followed by white space and a user name. In addition, an NIS netgroup can be specified in place of the host name, user name, or both. A single plus (+) character. This means any host and user. The keyword NO_PLUS. This keyword disallows the use of the plus character (+) to match any host or user on a system-wide basis. By default, the line containing this keyword is a comment. Remove the com- ment character to disallow the use of the plus character. Entries in the hosts.equiv file are either positive or negative. Positive entries allow access; negative entries deny access. The following entries are positive: host name user name +@netgroup In addition, the plus sign (+) can be used in place of the host name or user name. In place of the host name, it means any remote host. In place of the user name, it means any user. The following entries are negative: -host name -user name -@netgroup To be allowed access or denied access, a user's remote host name and user name must match an entry in hosts.equiv or .rhosts. The hosts.equiv file is searched first; if a match is found, the search ends. Therefore, the order in which the positive and negative entries appear is important. If a match is not found, .rhosts is searched if it exists in the user's home directory. A host name or user name can match an entry in hosts.equiv in one of the following ways: The official host name (not an alias) of the remote host matches a host name in hosts.equiv. The remote user name matches a user name in hosts.equiv. If a user name parameter is included in the hosts.equiv file, this means that the remote user is a trusted user and is allowed to rlogin to any local user account without being prompted for a password. Otherwise, if the user name parameter is not specified in the hosts.equiv file, the name of the remote user must match that of the local user. If the remote user name does not match a user name in hosts.equiv, the remote user name matches the local user name. CAUTIONS
For security purposes, the files /etc/hosts.equiv and .rhosts should exist and be readable and writable only by the owner, even if they are empty. EXAMPLES
The following are sample entries in an /etc/hosts.equiv file: # Allows access to users on host1 and host2 that have accounts on this host: host1 host2 # Allows access to user johnson on host1 to any local user: host1 johnson # Allows access to all users on systems specified in netgroup chicago +@chicago # Denies access to users specified in netgroup finance on host5 host5 -@finance # Allows access to all users on all systems except root + -root RELATED INFORMATION
Commands: rcp(1), rlogin(1), rsh(1) Functions: ruserok(3). Files: netgroup(4) Daemons: rlogind(8), rshd(8) delim off hosts.equiv(4)
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