Installation guide

Firewall Mark

For entering a firewall mark integer value when bundling multi-port protocols or creating a

multi-port virtual server for separate, but related protocols.

Device

The name of the network device to which you want the floating IP address defined in the

Virtual IP Address field to bind.

You should alias the public floating IP address to the Ethernet interface connected to the

public network.

Re-entry Time

An integer value that defines the number of seconds before the active LVS router attempts to

use a real server after the real server failed.

Service Timeout

An integer value that defines the number of seconds before a real server is considered dead

and not available.

Quiesce server

When the Quiesce server radio button is selected, anytime a new real server node

comes online, the least-connections table is reset to zero so the active LVS router routes

requests as if all the real servers were freshly added to the cluster. This option prevents the

a new server from becoming bogged down with a high number of connections upon

entering the cluster.

Load monitoring tool

The LVS router can monitor the load on the various real servers by using either rup or

ruptime. If you select rup from the drop-down menu, each real server must run the

rstatd service. If you select ruptime, each real server must run the rwhod service.

Scheduling

The preferred scheduling algorithm from the drop-down menu. The default is Weighted

least-connection.

Persistence

Used if you need persistent connections to the virtual server during client transactions.

Specifies the number of seconds of inactivity allowed to lapse before a connection times out

in this text field.

Persist en ce Net work Mask

To limit persistence to particular subnet, select the appropriate network mask from the drop-

down menu.

1.1 0.4 .2 . REAL SERVER Subsect io n

Clicking on the REAL SERVER subsection link at the top of the panel displays the EDIT REAL

SERVER subsection. It displays the status of the physical server hosts for a particular virtual service.

Red Hat Ent erprise Linux 5 Clust er Suit e Overview