I am back at school now and since you are reading this it means that I have squid up and running. At the school we have 2 64K ISDN lines and we are going through DialNet, although I am using Squid to control the access and set up a cache which seems like an expensive enterprise under NT. Since I got the proxy up and running, one of the ISDN lines has gone off-line. I have not been able to get through to BT to find out the problem but was curious if I need to resolve both lines to the IP address I am with DialNet? Since I am using only one of the IP addresses they gave me, perhaps the other one has shut down?

You need "multilink ppp" for two lines, or operate them from independent cards with independent ip addresses. Your ISP needs to support multilink, which may be on a different phone number. Once you multilink on two lines it's easy to expand it to four or more. But note than it took us three months to get multilink ppp working, and there are still occasional problems.

The other thing I would like to do is to set up another SuSE proxy in my own classroom so that I can deny all the computers in the room access to the net when I am trying to teach. Any ideas? Paul

Yes, it's quite possible to set times for Squid to work to certain IP addresses and times for it not to work, but you need to understand the acl list system well before you can do so, and when you do I let me know cos I need someone to explain it to me. Currently I have two conf files and use cron to swop between them at certain times. Re-reading your mail, it's easier if you have a second proxy, which will presumably be either downstream from your first using http or sharing it with icp. But you need control of the local proxy setting on your clients, or pupils can change their proxy settings and use the other one, bypassing your local one. Much better with one proxy and clever acl configuration. Re your next letter - don't be paranoid. Don't worry. Just allow all until there are problems, or until you work out how to allow selectively. -- Christopher Dawkins, Felsted School, Dunmow, Essex CM6 3JG 01371-820527 or 07798 636725 cchd@felsted.essex.sch.uk