Hi folks, first of all I need to say that I'm not a programmer, but I need to do something based on programming.... My problem is that I need to modify the DNS servers in almost 1000 nanostation equipments. I have access to them through ssh and I want to make a script to acomplish the task. I already made a file with the ip addresses of all CPE's (named client.txt). I think my script can begin like this: #!/bin/bash for host in $(cat client.txt); do ssh Administrador@$host sameforall; sed 's/x.x.x.x/y.y.y.y /etc/resolve.conf; sed 's/w.w.w.w/z.z.z.z /etc/resolve.conf; # here I restart network service but I don't have the command yet done. y.y.y.y and z.z.z.z are the new DNS servers and x.x.x.x w.w.w.w the old ones I know this is far away to be correct, but I need somebody help me. The first problem I'm going to find is that ssh prompts me to put the given servers ssh key to my known_hosts file, how can I solve this??? Can anybody please help me??? Thanks in advance. BR.