I have setup an internal mail server-- Linux Kernel 2.0.34-- (mail
routing for internal user only. Not route to internet)and a PPP dial
on demand. I use sendmail 8.8.9 and use diald-0.16 with patch 0.16.5
The user will be able to send mail to internal user and internal user
can check their mail to the local mail server. The user also can surf
the internet. The mail server cum PPP dial on demand (to our ISP) will
allow user to surf the net and it is using 33.6K modem.


My question:-

1) Whenever the user send mail to local user, the sendmail initiate
the connection to the internet. The modem dialed to our ISP. (By right
it should not since the mail will not route to internet). So where is
the part that i should comment out in order for the sendmail to refer
to inside. No outside. Currently, i did not modify the sendmail.cf
file. I just leave it on default.

2) If i want to use kernald to load PPP instead of using diald, where
should i and how should i make such a way that when the PPP dial on
demand dial to the ISP when the user want to do surfing. Which part i
should configure?

3) The surfing is very slow. (by sharing a 33.6K modem) I was told
that the performance of MS Proxy server with 33.6K modem is quite
good(from user himself). So is there anyway that i can make this linux
PPP dial on demand server have a comparable performance with MS Proxy
server? I need to use some proxy stuff? squid? or something else?
Please recommend?


Thank YOu






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