host.deny question

[phil at 1918.com (Phil Buckley)]

I have been getting messages logged about once a week from someone trying to open an anon ftp session on my redhat 7.1 system from France. Since I don't know who they are, I would like to put their domain in my host.deny file rather then just their dial-up IP address each time (which psionic does automagically for me). Here's a snippet of the last alert:

Jan 16 08:45:40 water ftpd[26918]: FTP LOGIN REFUSED (anonymous ftp denied on default server) FROM AMontsouris-103-1-5-65.abo.wanadoo.fr [80.14.150.65], anonymous


So just wanted to see if my syntax is correct...
ALL: abo.wanadoo.fr

Will that keep anyone from trying to connect from that ISP?

Phil