ccr(8)ccr(8)Nameccr - remote console carrier requester
Syntax
/etc/ccr [ options ] node
Description
The command establishes a logical connection between your ULTRIX system
and the console carrier server on a remote system. The command enables
your terminal to act as the console for a remote unattended system.
For example, your terminal can act as the console for a Digital Ether‐
net Communications Server (DECSA) and its resident software. The node
is the name or address of the target node. A node name consists of
from one to six alphanumeric characters. A node address consist of two
decimal integers (n.n), where the first indicates the network number
(1-63), and the second indicates the node address (1-1023).
You can use to force a crash if a server node becomes unresponsive. To
determine how to force a crash, see the documentation for the respec‐
tive server product.
The requirements for using are as follows:
· The host node (that is, your local ULTRIX node) and the remote node
must be on the same Ethernet.
· If your server product is a DECSA, the console carrier server image
( and its loader file ( must be located in on your ULTRIX node. The
and files are not needed, nor is any loading done for other
servers. For more details, see the installation guide for the par‐
ticular server product.
<CTRL/D> exits from console carrier mode and terminates
Options-8 Use only 803.2 format packets.
-c Use the specified circuit to connect to the target node.
-e Use only Ethernet format packets.
-h Use the specified address (next argument) as the Ethernet address
of the target node.
-n Use the next argument as the target node ID.
-p Use the specified service password (next arguments) in accessing
the target node.
-v Use verbose mode.
Restrictions
You must have superuser privileges to run
Examples
# /etc/ccr -c qna-0 -n dallas <RET>
ccr: Remote console reserved
.
.
.
<CTRL/D>
ccr: Remote console released
#
Diagnostics
The command can return the following diagnostic messages:
ccr: Remote console reserved
The command has successfully connected to the remote console server and
your terminal is now capable of acting as a console for the remote
node.
ccr: Remote console released
Your connection with the remote console server has been terminated and
you are no longer in console carrier mode.
ccr: Remote console already in use
The remote console server that you are attempting to connect to is
already reserved by another user.
ccr: Permission denied
You do not have the necessary privileges to run (You must be a supe‐
ruser.)
ccr: Hardware address required
The command is unable to locate the hardware address of the remote node
to which you are attempting to connect. A remote node's hardware
address must be defined either in the command line, or in its nodes
database entry. (Nodes database entries are defined with the command.)
ccr: No node entry in database
The command does not recognize the remote node to which you are
attempting to connect, since the node-id that you specified is not
defined in the nodes database. (Nodes database entries are defined
with the command.)
Files
Console carrier server image
Console carrier server loader
See Alsoaddnode(8), getnode(8), load(8), remnode(8), trigger(8)ccr(8)
