> Hello, I have in mysql database a list of ip of networks what I want
> to admit connect to the proxy. Is possible verify if a new connection
> try to connect to the proxy verify if their ip is in the database and
> if is in, in that case, allow him to connect?
You could write an external_acl program that checks if the IP is in your mysql table and returns OK or ERR.
Check the "helpers" directory in the squid sources for inspiration.
JD
