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SunOS man pages : rpc.rexd (1)

Maintenance Commands                                 rpc.rexd(1M)

NAME

rpc.rexd, rexd - RPC-based remote execution server

SYNOPSIS

/usr/sbin/rpc.rexd [ -s ]

DESCRIPTION

rpc.rexd is the Sun RPC server for remote program execution. This daemon is started by inetd(1M) whenever a remote execu- tion request is made. For non-interactive programs, the standard file descriptors are connected directly to TCP connections. Interactive pro- grams involve pseudo-terminals, in a fashion that is similar to the login sessions provided by rlogin(1). This daemon may use NFS to mount file systems specified in the remote execution request.

SECURITY

rpc.rexd uses pam(3PAM) for account and session management. The PAM configuration policy, listed through /etc/pam.conf, specifies the modules to be used for rpc.rexd. Here is a partial pam.conf file with rpc.rexd entries for account and session management using the UNIX module. rpc.rexd account required /usr/lib/security/pam_unix.so.1 rpc.rexd session required /usr/lib/security/pam_unix.so.1 If there are no entries for the rpc.rexd service, then the entries for the "other" service will be used. rpc.rexd uses the getpwuid() call to determine whether the given user is a legal user.

OPTIONS

-s Secure. When specified, requests must have valid DES credentials. If the request does not have a DES credential it is rejected. The default publickey credential is rejected. Only newer on(1) commands send DES credentials. If access is denied with an authentication error, you may have to set your publickey with the chkey(1) com- mand. Specifying the -s option without presenting secure credentials will result in an error message: Unix too weak auth (DesONly)!

FILES

/dev/ptsn pseudo-terminals used for interactive mode SunOS 5.8 Last change: 14 Sep 1992 1 Maintenance Commands rpc.rexd(1M) /etc/passwd authorized users /tmp_rex/rexd?????? temporary mount points for remote file systems.

ATTRIBUTES

See attributes(5) for descriptions of the following attri- butes: ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |_____________________________|_____________________________| | Availability | SUNWnisu | |_____________________________|_____________________________|

SEE ALSO

chkey(1), on(1), rlogin(1), inetd(1M), pam(3PAM), inetd.conf(4), pam.conf(4), publickey(4), attributes(5), pam_unix(5)

DIAGNOSTICS

Diagnostic messages are normally printed on the console, and returned to the requestor.

NOTES

Root cannot execute commands using rexd client programs such as on(1). SunOS 5.8 Last change: 14 Sep 1992 2