ltm monitor ftp
ltm monitor ftp(1) BIG-IP TMSH Manual ltm monitor ftp(1)
NAME
ftp - Configures a File Transfer Protocol (FTP) monitor.
MODULE
ltm monitor
SYNTAX
Configure the ftp component within the ltm monitor module using the syntax in the following sections.
CREATE/MODIFY
create ftp [name]
modify ftp [name]
options:
app-service [[string] | none]
debug [no | yes]
defaults-from [name]
description [string]
destination [ [ ipv4 address[:port] ] | [ ipv6 address[.port] ] ]
filename [ [filename] | none]
interval [integer]
manual-resume [enabled | disabled]
mode [passive | port]
password [none | [password] ]
time-until-up [integer]
timeout [integer]
up-interval [integer]
username [name]
edit ftp [ [ [name] | [glob] | [regex] ] ... ]
options:
all-properties
non-default-properties
DISPLAY
list ftp
list ftp [ [ [name] | [glob] | [regex] ] ... ]
show ftp [ [ [name] | [glob] | [regex] ] ... ]
show running-config ftp
show running-config ftp [ [ [name] | [glob] | [regex] ] ... ]
options:
all-properties
non-default-properties
one-line
partition
test-result
DELETE
delete ftp [name]
Note: You cannot delete default monitors.
RUN
run ftp [name] [ destination [ [ ipv4 address[:port] ] | [ ipv6 address[.port] ] ] ]
STOP
stop ftp [name]
DESCRIPTION
You can use the ftp component to configure a custom monitor, or you can use the default FTP monitor that the Local Traffic
Manager provides. This type of monitor verifies the FTP service by attempting to download a specific file to the /var/tmp
directory on the system. Once downloaded successfully, the file is not saved.
You can test a custom monitor configuration against a specified target destination by using the run command, and view the
results of such a test by using the show command with the test-result option.
The following user roles (in addition to the root user) have permissions to run and stop an ltm monitor test:
admin, application-editor, manager, operator, resource-admin
EXAMPLES
create ftp my_ftp defaults-from ftp
Creates a monitor named my_ftp that inherits properties from the default FTP monitor.
list ftp
Displays the properties of all of the FTP monitors.
run ftp my_ftp destination 10.10.10.10:80
Runs a one-shot test of the custom monitor my_ftp against a target node at 10.10.10.10:80.
stop ftp my_ftp
Cancels a one-shot test of the custom monitor my_ftp in progress.
show ftp my_ftp test-result
Displays the result of the most recent one-shot test of the custom monitor my_ftp.
OPTIONS
app-service
Specifies the name of the application service to which the monitor belongs. The default value is none. Note: If the
strict-updates option is enabled on the application service that owns the object, you cannot modify or delete the
monitor. Only the application service can modify or delete the monitor.
debug
Specifies whether the monitor sends error messages and additional information to a log file created and labeled
specifically for this monitor. You can use the log information to help diagnose and troubleshoot unsuccessful health
checks.
The default value is no. The options are:
no Specifies that the system does not redirect error messages and additional information related to this monitor.
yes Specifies that the system redirects error messages and additional information to the
/var/log/monitors/--.log file.
defaults-from
Specifies the name of the monitor from which you want your custom monitor to inherit settings. The default value is
ftp.
description
User defined description.
destination
Specifies the IP address and service port of the resource that is the destination of this monitor. The default value
is *:*.
Possible values are:
*:* Specifies to perform a health check on the address and port supplied by a pool member.
*:port
Specifies to perform a health check on the server with the IP address supplied by the pool member and the port
you specify.
IP address:port
Specifies to mark a pool member up or down based on the response of the server at the IP address and port you
specify.
This option is required for the command run, unless an IP address and service port are specified in the destination
option for the specified custom monitor.
filename
Specifies the full path and file name of the file that the system attempts to download. The health check is successful
if the system can download the file. The default value is none.
glob Displays the items that match the glob expression. See help glob for a description of glob expression syntax.
interval
Specifies, in seconds, the frequency at which the system issues the monitor check when either the resource is down or
the status of the resource is unknown. The default value is 5 seconds.
Important: F5 Networks recommends that when you configure this option and the up-interval option, whichever value is
greater be a multiple of the lesser value to allow for an even distribution of monitor checks among all monitors.
manual-resume
Specifies whether the system automatically changes the status of a resource to up at the next successful monitor
check. The default value of the manual-resume option is disabled.
Note that if you set the manual-resume option to enabled, you must manually mark the resource as up before the system
can use it for load balancing connections.
mode Specifies the data transfer process (DTP) mode. The default value is passive.
The options are:
passive
Specifies that the monitor sends a data transfer request to the FTP server. When the FTP server receives the
request, the FTP server then starts and establishes the data connection.
port Specifies that the monitor starts and establishes the data connection with the FTP server.
name Specifies a unique name for the component. This option is required for the commands create, delete, modify, run and
stop.
password
Specifies the password, if the monitored target requires authentication. The default value is none.
partition
Displays the administrative partition within which the component resides.
regex
Displays the items that match the regular expression. The regular expression must be preceded by an at sign (@[regular
expression]) to indicate that the identifier is a regular expression. See help regex for a description of regular
expression syntax.
test-result
Displays the result of the most recent one-shot test of the specified monitor(s), if any such test has been performed
since BIG-IP was started.
time-until-up
Specifies the amount of time, in seconds, after the first successful response before a node is marked up. A value of 0
(zero) causes a node to be marked up immediately after a valid response is received from the node. The default value
is 0 (zero).
timeout
Specifies the number of seconds the target has in which to respond to the monitor request. The default value is 31
seconds.
If the target responds within the set time period, it is considered up. If the target does not respond within the set
time period, it is considered down. Also, if the target responds with a RESET packet, the system immediately flags the
target as down without waiting for the timeout interval to expire.
up-interval
Specifies, in seconds, the frequency at which the system issues the monitor check when the resource is up. The default
value is 0 zero, which specifies that the system uses the value of the interval option whether the resource is up or
down.
Important: F5 Networks recommends that when you configure this option and the interval option, whichever value is
greater be a multiple of the lesser value to allow for an even distribution of monitor checks among all monitors.
username
Specifies the username, if the monitored target requires authentication. The default value is none.
SEE ALSO
create, delete, edit, glob, list, modify, regex, run, show, stop, tmsh
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BIG-IP 2017-08-16 ltm monitor ftp(1)