MOPRC(8) System Manager's Manual MOPRC(8)NAME
moprc - MOP Remote console requestor
SYNOPSIS
moprc [options] <nodename>|<MAC Address>
DESCRIPTION
moprc allows a system administrator to connect to MOP console devices (usually terminal servers) and log into them to issue commands
remotely. It is the equivalent of "NCP CONNECT NODE" or "SET HOST/MOP" on VMS.
The node maybe specified as a MAC address in Unix format (ie as 6 pairs of hex digits seperated by colons) or as a name that appears in
/etc/ethers.
You will need to be root or have privileges to use moprc.
OPTIONS
-i Selects the ethernet interface to use to connect to the device. By default the value of environment variable MOPRC_INTERFACE or
"eth0" is used.
-v Shows some information about the node that is connected to
-t Trigger the node. This normally reboots the server so use this with care!
-p <n> Changes the poll interval of moprc from 200 ms to <n> ms. Changing this down will increase the risk of timeouts, increasing it will
decrease the speed of the link.
-h -? Shows the usage message.
-V Shows the version of moprc.
EXAMPLES
moprc ds200
moprc -i eth1 08:00:2B:2B:AD:99
ENVIRONMENT VARIABLES
MOPRC_INTERFACE defines the default interface to use if not specified on the command line. If not present the interface "eth0" will be
used.
BUGS
On Darwin you cannot specify an ethernet address on the command-line, the name MUST be in /etc/ethers.
You can script moprc but it sends one character per ethernet packet so is very slow.
There is no locking in moprc so be careful to only run once instance at a time.
SEE ALSO
latd(8), latd.conf(5), ethers(5), llogin(1)MOP Remote Console November 21 2001 MOPRC(8)
Check Out this Related Man Page
ETHERS(3) BSD Library Functions Manual ETHERS(3)NAME
ethers, ether_line, ether_aton, ether_ntoa, ether_ntohost, ether_hostton -- Ethernet address conversion and lookup routines
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h>
#include <sys/socket.h>
#include <net/ethernet.h>
int
ether_line(const char *l, struct ether_addr *e, char *hostname);
struct ether_addr *
ether_aton(const char *a);
char *
ether_ntoa(const struct ether_addr *n);
int
ether_ntohost(char *hostname, const struct ether_addr *e);
int
ether_hostton(const char *hostname, struct ether_addr *e);
DESCRIPTION
These functions operate on ethernet addresses using an ether_addr structure, which is defined in the header file <netinet/if_ether.h>:
/*
* The number of bytes in an ethernet (MAC) address.
*/
#define ETHER_ADDR_LEN 6
/*
* Structure of a 48-bit Ethernet address.
*/
struct ether_addr {
u_char octet[ETHER_ADDR_LEN];
};
The function ether_line() scans l, an ASCII string in ethers(5) format and sets e to the ethernet address specified in the string and h to
the hostname. This function is used to parse lines from /etc/ethers into their component parts.
The ether_aton() function converts an ASCII representation of an ethernet address into an ether_addr structure. Likewise, ether_ntoa() con-
verts an ethernet address specified as an ether_addr structure into an ASCII string.
The ether_ntohost() and ether_hostton() functions map ethernet addresses to their corresponding hostnames as specified in the /etc/ethers
database. ether_ntohost() converts from ethernet address to hostname, and ether_hostton() converts from hostname to ethernet address.
RETURN VALUES
ether_line() returns zero on success and non-zero if it was unable to parse any part of the supplied line l. It returns the extracted ether-
net address in the supplied ether_addr structure e and the hostname in the supplied string h.
On success, ether_ntoa() returns a pointer to a string containing an ASCII representation of an ethernet address. If it is unable to convert
the supplied ether_addr structure, it returns a NULL pointer. Likewise, ether_aton() returns a pointer to an ether_addr structure on success
and a NULL pointer on failure.
The ether_ntohost() and ether_hostton() functions both return zero on success or non-zero if they were unable to find a match in the
/etc/ethers database.
NOTES
The user must insure that the hostname strings passed to the ether_line(), ether_ntohost() and ether_hostton() functions are large enough to
contain the returned hostnames.
NIS INTERACTION
If the /etc/ethers contains a line with a single + in it, the ether_ntohost() and ether_hostton() functions will attempt to consult the NIS
ethers.byname and ethers.byaddr maps in addition to the data in the /etc/ethers file.
SEE ALSO yp(8), ethers(5)BUGS
The ether_aton() and ether_ntoa() functions returns values that are stored in static memory areas which may be overwritten the next time they
are called.
HISTORY
This particular implementation of the ethers library functions were written for and first appeared in FreeBSD 2.1.
BSD April 12, 1995 BSD