dcs(1M) System Administration Commands dcs(1M)
NAME
dcs - domain configuration server
SYNOPSIS
/usr/lib/dcs [-s sessions]
DESCRIPTION
The Domain Configuration Server (DCS) is a daemon process that runs on Sun servers that support remote Dynamic Reconfiguration (DR)
clients. It is started by inetd(1M) when the first DR request is received from a client connecting to the network service sun-dr. After the
DCS accepts a DR request, it uses the libcfgadm(3LIB) interface to execute the DR operation. After the operation is performed, the results
are returned to the client.
The DCS listens on the network service labeled sun-dr. Its underlying protocol is TCP, and it is invoked as an inetd server using the TCP
transport. The service FMRI for DCS is:
svc:/platform/sun4u/dcs:default
These entries enable remote DR operations. If you disable these services, DR operations initiated from a remote host fail. There is no neg-
ative impact on the server. If you are using a Sun Fire high-end system and IPC is configured on the sun-dr port (port 665), you must also
remove the policies in /etc/inet/ipsecinit.conf that reference the sun-dr port, then use the ipsecconf(1M) command with appropriate options
to flush the policies.
If you disable sun-dr services without deleting and flushing the corresponding entries from /etc/inet/ipsecinit.conf, any process that
attempts to use the sun-dr port hangs. This is because the IPSec policy is still in effect for that port.
OPTIONS
The following options are supported:
-s sessions Set the number of active sessions that the DCS allows at any one time. When the limit is reached, the DCS stops accepting
connections until active sessions complete the execution of their DR operation. If this option is not specified, a default
value of 128 is used.
ERRORS
The DCS uses syslog(3C) to report status and error messages. All of the messages are logged with the LOG_DAEMON facility. Error messages
are logged with the LOG_ERR and LOG_NOTICE priorities, and informational messages are logged with the LOG_INFO priority. The default
entries in the /etc/syslog.conf file log all of the DCS error messages to the /var/adm/messages log.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWdcsu, SUNWdcsr |
+-----------------------------+-----------------------------+
SEE ALSO
svcs(1), cfgadm_sbd(1M), inetadm(1M), inetd(1M), ipsecconf(1M), svcadm(1M), syslog(3C), config_admin(3CFGADM), libcfgadm(3LIB), sys-
log.conf(4), attributes(5), smf5dr(7D)
NOTES
The dcs service is managed by the service management facility, smf(5), under the service identifier:
svc:/platform/sun4u/dcs:default
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). Responsibil-
ity for initiating and restarting this service is delegated to inetd(1M). Use inetadm(1M) to make configuration changes and to view config-
uration information for this service. The service's status can be queried using the svcs(1) command.
SunOS 5.10 4 Nov 2004 dcs(1M)