Dial in Server on RH linux 9.0

[ather05]

Hello!
Guys
I have been given this task to implement or in fact configure a dial in server as in ISPS Now here is the description What I want to configure is a Remote Access server (RRAS in windows 2003) so that my users of which have their accounts on my server can dial in from a remote location using PSTN and then get 3 facilities 1. Files on Local LAN 2. Internet which is available on the server and on the local LAN 3. Emails that are o the local intranet like my own domain

Now I have to configure it on Linux 9.0
The problem is that I have worked with Linux but not to that extent
I really need you help here Please tell me which server I need to configure for this requirement And where can I get more information about this same thing This thing has to be done as soon as possible and I have to do it all on my own Your kind help is deeply appreciated
Thanks
Ather

[aioshin]

my Steps in configuring Dial-in Internet gateway using Redhat 9
I am using 56k 3com US Robotics Fax modem


1. Install Mgetty
2. Edit the /etc/inittab and add these txt below all the txt
S0:2345:respawn:/sbin/mgetty -s 57600 /dev/ttyS0
# the modem was using COM1
3. Edit your /etc/mgetty+sendfax/mgetty.config ...
add the txt below, this is what i am using
speed 57600
modem-type auto
modem-check-time 1800
init-chat "" AT&F1M0 # this is what ie used with my Modem, it could be different
#with other modem
port ttyS0
debug 4
4. edit the /etc/mgetty+sendfax/login.config
#---- Ive just commented out the default below
/AutoPPP/ - a_ppp /usr/sbin/pppd auth -chap +pap login
debug

5. Assuming PPP has been installed already, below are my ppp configs
/etc/ppp/options
asyncmap 0
crtscts
nodetach
deflate 15
debug
lock
login
#note: i put log-in here so i can use the systems users
modem
netmask 255.255.255.0
ms-dns 2xx.xx.xxx.xx
ms-dns 2xx.xx.xxx.x
require-pap
refuse-chap
~
/etc/ppp/pap-secrets
# Secrets for authentication using PAP
# client server secret IP addresses
* * "" *

################################################## #############

/etc/ppp/options.ttyS0
172.16.0.101:17.16.0.100
#note: 172.16.0.101 - server assigned IP
# 172.16.0.100 - remote IP

6. make sure u have enabled this in your firewall script
echo "1" > /proc/sys/net/ipv4/ip_forward
$IPTABLES -t nat -A POSTROUTING -o eth0 -j MASQUERADE

note: eth0 - connected to INTERNET - ip is 2xx.xxx.xxx.xxx
eth1 - connected to LAN
ppp0 - the dial-in ppp adapter

That was my configuration in my redhat 9 system and able to make it working, try it first without a firewall, then if it works, there, you can adjust your rules ...
hope it helps you

[ather05]

thanks alot friend!!