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192 Fabric OS Administrator’s Guide
53-1002745-02
Listener applications
6
Refer to “Deleting a rule from an IP Filter policy” on page 223 for more information on deleting
IP filter rules.
3. To permanently delete the policy, type the ipfilter
--save command.
ATTENTION
If you deleted the rule to permit Telnet, you must add a rule to permit Telnet.
Listener applications
Brocade switches block Linux subsystem listener applications that are not used to implement
supported features and capabilities. Table 25 lists the listener applications that Brocade switches
either block or do not start.
Ports and applications used by switches
If you are using the FC-FC Routing Service, be aware that the secModeEnable command is not
supported.
Table 26 lists the defaults for accessing hosts, devices, switches, and zones.
TABLE 25 Blocked listener applications
Listener application Brocade DCX and DCX 8510 Backbone families Brocade switches
chargen Disabled Disabled
daytime Disabled Disabled
discard Disabled Disabled
echo Disabled Disabled
ftp Disabled Disabled
rexec Block with packet filter Disabled
rlogin Block with packet filter Disabled
rsh Block with packet filter Disabled
rstats Disabled Disabled
rusers Disabled Disabled
time Block with packet filter Disabled
TABLE 26 Access defaults
Access default
Hosts Any host can access the fabric by SNMP.
Any host can Telnet to any switch in the fabric.
Any host can establish an HTTP connection to any switch in the fabric.
Any host can establish an API connection to any switch in the fabric.