I need an irule to read a txt file in a remote webserver for blocking external IPs dynamically

To do this you’d need to use a sideband connection which isn’t ideal in TCL. iRules LX can do this much easier but I wouldn’t really advocate doing it this way. It would be better to automatically update a datagroup, perhaps using REST api.

Hi,

where is the file located? and how is it filled (updated).

It is located on a webserver? or on F5. and how is it formatted?

Lee is Right you can directly automatically update a datagroup. But wee need the context in order to give you the right recommendation.

Regards,

You may not do that with an irule but with tmsh command and icall scheduler!

Irule are per connection, so it will use too many cpu to use irules.

file is located on webserver in a txt file. It will be updated as a entry in a text file