Anonymous FTP login?


With a communication handle, is there a way to log into an FTP server anonymously from an S1?

Usually the comm handle value in PAC Control would be “,username,password”. Is there a string value that will allow the controller to login to the server anonymously?

For example, from the Windows command line, you would use “ftp -A server_address”.


Hi Dan,

Interesting question.


try: “anonymous,anonymous” for that “username,password” part. (Don’t forget your “:21” after the IP address and before your user/pass.)


For grins and giggles, did a quick Wireshark sniff of the communication from my Windows PC when doing that “ftp -A server_address” you mentioned, to see what it does. It just used: “anonymous” for the username and “[B]mylogin@PCname[/B]” for the password.

FYI this “password” was also echoed back as part of the login greeting that looked like this:

ftp -A
Connected to
220-Welcome to Opto 22’s FTP Server.
220-Please contact, 1-800-835-6786
220 to get a secured account.
331 Password required for anonymous
230 Logged on
Anonymous login succeeded for [B]mylogin@PCname[/B]

I found this link helpful too, especially the quote below:

What is Anonymous FTP?

Anonymous FTP is a means by which archive sites allow general access to their archives of information. These sites create a special account called “anonymous”. User “anonymous” has limited access rights to the archive host, as well as some operating restrictions. In fact, the only operations allowed are logging in using FTP, listing the contents of a limited set of directories, and retrieving files. Some sites limit the contents of a directory listing an anonymous user can see as well. Note that “anonymous” users are not usually allowed to transfer files TO the archive site, but can only retrieve files from such a site.

Traditionally, this special anonymous user account accepts any string as a password, although it is common to use either the password “guest” or one’s electronic mail (e-mail) address. Some archive sites now explicitly ask for the user’s e-mail address and will not allow login with the “guest” password. Providing an e-mail address is a courtesy that allows archive site operators to get some idea of who is using their services.

Hope that helps!



P.S. Does the server you’re accessing have a name? Because, assuming:

  1. your S1 has 9.2 firmware or newer and

  2. has DNS/gateway IP addresses configured on it

you can use a name instead of an IP address, then you won’t have to worry if that server’s IP address changes in the future.

For example, I just used this comm handle to log into a remote server:





That handled it for me! Thanks Mary!