Chapter 4 Configuring the Appliance 33
NNTP options
(continued)
❚Background Posting: Causes the appliance to post NNTP
articles to parent NNTP servers in the background.
❚Obey Cancel Control Messages: Sets the appliance to
obey cancel control messages.
When the appliance gets a cancel control message, it
deletes the corresponding article from the cache. You do
not need to enable this option if the appliance is caching
articles on demand (i.e. no feed groups exist). For all
nonfeed news groups, the appliance actively polls parent
NNTP servers for cancelled articles. See the Check for
Cancelled Articles option, below.
❚Obey Newgroups Control Messages: Causes the appliance
to obey newgroup control messages.
The appliance actively polls parent NNTP servers for new
groups; see the Check for New Groups option, below.
❚Obey Rmgroups Control Messages: Sets the appliance to
obey rmgroup (remove group) control messages.
Inactivity
Timeout
Defines the number of seconds that idle connections can
remain open. This timeout should be at least three minutes.
Check for New
Groups Every
Defines the number of seconds that pass before the
appliance polls parent NNTP servers for new news groups.
The parent group lists change slowly. Consequently, you do
not need to check them frequently.
Use the command-line interface to list the hosts you want the
appliance to poll. See Configuring NNTP servers‚ on page 65
for more information.
Check for
Cancelled
Articles Every
Defines the number of seconds that pass before the
appliance polls all nonfeed news groups on the parent NNTP
servers for cancelled articles. Checking for new articles
should not be done too frequently as it involves
communication with the parent NNTP server.
Check Parent
NNTP Server
Every
Defines the number of seconds that pass before the
appliance polls the parent NNTP server for new articles.
Check Cluster
Every
Defines the number of seconds that pass before the
appliance checks the nodes on the cluster.
Check Pull
Groups Every
Defines the number of seconds that pass before the
appliance pulls (or caches) news articles from defined pull
groups. Use the command-line interface to designate pull
groups. See Configuring NNTP servers‚ on page 65 for more
information.
Authentication
Server Host
The name of the host machine running the authentication
server. If the host machine is the appliance, enter “local host”.
Option Definition (Continued)