I googled "ant execute remote" and got http://ant.apache.org/manual/tasksoverview.html

here are some remote tasks:

Remote Tasks [Back to top] 
Task Name Description 
FTP Implements a basic FTP client that can send, receive,
 list, and delete files, and create directories.
 
Rexec Task to automate a remote rexec session.
 
Scp Copy files to or from a remote server using SSH.
 
setproxy Sets Java's web proxy properties, so that tasks and code run in the same 
JVM can have through-the-firewall access to remote web sites.
 
Sshexec Execute a command on a remote server using SSH.
 
Telnet Task to automate a remote telnet session. 
This task uses nested  and  
tags to indicate strings to wait for and specify text to send.