to test port 21...
free tool SLCheck can monitor your
FTP servers by connecting to port 21 periodically, for example once a
to monitor your FTP server:
-p 21 -a ftp.domain.com -r "220"
tries to establish a connection to server ftp.domain.com.
The results are logged in file
SLReport.csv. In dependence of the answer one of the following batch
files will be executed:
if the connection is successfull. That means that the FTP server
has answered with the right answer string "220"
within 2000ms. That's the
default timeout, you can change it with option -w. If you don't
want a batch file to be executed if the attempt is successful
you can add option -NoOkBatch.
eout.cmd if the server doesn't answer within 2000ms.
if the servers answers with a different answer string.
you don't want any batch files to run (only logging) you can add
option -NoBatch. Use -NoErrorBatch to suppress the execution of CheckTim
eout.cmd and CheckMismatch.cmd.
To get the answer string of your FTP server you can use the command
without option -r:
-p 21 -a ftp.domain.com
A window will occur that shows the answer of the FTP server.
To connect to port 21 periodically you have to create a scheduled