To update IP record on dyndns.com i use ddclient package how to install: sudo apt-get install ssh libio-socket-ssl-perl ddclient myconfig (example) cat /etc/ddclient.conf # Configuration file for ddclient generated by debconf # # /etc/ddclient.conf daemon=3600 use=web, web=checkip.dyndns.com, web-skip=’IP Address’ server=members.dyndns.org login=MYDDNSLOGIN password=’MYDDNSPASS’ MYHOST.dyndns-server.com