Tom works as a network administrator for the P4S company. The primary adaptive security appliance in an active/standby failover configuration failed, so the secondary adaptive security appliance was automatically activated. Tom then fixed the problem. Now he would like to restore the primary to active status. Which one of the following commands can reactivate the primary adaptive security appliance and restore it to active status while issued on the primary adaptive security appliance?
The Need for Gateway Clusters
Gateways and VPN connections are business critical devices. The failure of a Security Gateway or VPN connection can result in the loss of active connections and access to critical data. The gateway between the organization and the world must remain open under all circumstances.
ClusterXL Gateway Cluster Solution
A ClusterXL cluster is a group of identical Check Point Security Gateways connected in such a way that if one fails, another immediately takes its place.
An unauthorized DHCP server may either lease incorrect IP addresses to clients or negatively
acknowledging DHCP clients. Clients that obtain a configuration lease from the unauthorized
server can fail to locate valid domain controllers, preventing clients from successfully logging on
to the network. For the directory authorization process to work properly, it is necessary that the
first DHCP server introduced on to your network participate in the Active Directory service. The
server must be installed as either a domain controller or a member server.
All routers will have DLSw configured to replace transparent bridging over the WAN
links. The remote routers should be able to see the static address for the mainframe in
their reachability tables. Only IP will be used over the WAN links and the ISDN will
only come up when the primary link fails. DLSw should not bring up the ISDN link.
Network System Administrators operate in a high-stress environment,
where the competitive demands of the business often run counter to
textbook “best practices”. Design and planning lead times can be nonexistent
and deployed systems are subject to constant end-runs; but at
the end of the day, you, as the Administrator, are held accountable if
things go wrong.You need help and a fail-safe checklist that guarantee
that you’ve configured your network professionally and responsibly.You
need to “CYA”....
Customers that installed Exchange 2000 experienced a paradigm shift in the
complexity of the underlying operating system. With Windows 2000
introducing several new concepts, installers were burdened with learning the
differences in how Active Directory uses Domain Name System (DNS),
Lightweight Directory Access Protocol (LDAP), and a variety of new server
roles for establishing suitable infrastructures for Exchange 2000. Microsoft
Product Support Services learned that these infrastructures failed too often, or
were never configured correctly at their inception.
This course requires a classroom with a minimum of one computer for the
instructor and one for each student. Before class begins, install and configure all
computers by using the following information and instructions.
Although only one instructor computer is required for course
1561B, it is recommended that you set up a second instructor computer to serve
as a domain controller in the nwtraders.msft domain. This will provide a backup
domain controller in case the primary instructor computer fails.
The best practices described in this paper require that the Data Guard configuration be managed
by the Data Guard Broker9. The Data Guard Broker is responsible for sending FAN events to
client applications in order to clean up their connections to the down database and reconnect to
the new production database. In addition, Oracle Clusterware must be installed and active on the
primary and standby sites for both single instance (using Oracle Restart) and Oracle RAC
This being said most of us, clever architects, will agree that without a solid governance SOA will fail at the business level as well as at the technology level. From an IT-perspective SOA is not as much as another way of doing things we used to do, but it is much more an additional layer on the things we already used to do; doing things “SOA” adds an extra dimension to doing things as we are used to in the past decades. We still design, build and test software, we still implement user requirements, we still manage configurations, we still...