1,register ddns account
open www.3322.org in browser
then register a ddns account
2,install ddns client
#aptitude update
#aptitude upgrade
#aptitude install lynx
3,write a shell script for ddns
#cat > /etc/ppp/ip-up.d/ddns
#!/bin/sh
lynx -mime_header -auth=user : pass \
http://www.3322.org/dyndns/update?system=dyndns&hostname=myhost.3322.org
#chmod a+x /etc/ppp/ip-up.d/ddns