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Full Discussion: Four PCs Sharing ADSL
Top Forums UNIX for Dummies Questions & Answers Four PCs Sharing ADSL Post 31680 by HOUSCOUS on Tuesday 12th of November 2002 01:31:01 AM
Old 11-12-2002
Question Four PCs Sharing ADSL

Hello, everyone. I have a little favor to ask. Me and my friends decided sharing an ADSL line with four PCs.
PC no.1: Desktop, two netcard (2000 and 8139), Mandrake 9.0
PC no.2: Acer notebook, PC Card, RTL-8139C/8139C+, MS 98 + Win 2000 Pro
PC no.3: Desktop, net card 8139, WindowME + Win 2000 Ads
PC no.4: Desktop, net card 8139, Win 98 + RedHat 8.0
Hub£ºTp-Link 10M
ADSL: eth, no router

Setting:
PC no.1: as server (or router whatever it should be called). connect ADSL to eth0, hub to eth1.
eth0:
ip:192.168.0.1
Mask:255.255.255.0
eth1:
ip:192.168.0.2
Mask£º255.255.255.0
Didn't setup gateway here.
*****************************************
PC no.2
IP£º192.168.0.3
Mask£º255.255.255.0
Gateway£º192.168.0.1
DNS:202.96.134.133
202.96.128.133
192.168.0.1
*****************************************
PC no.3:
IP£º192.168.0.4
Mask£º255.255.255.0
Gateway£º192.168.0.1
DNS:202.96.134.133
202.96.128.133
192.168.0.1

*****************************************
PC no.4:
IP£º192.168.0.5
Mask£º255.255.255.0
Gateway£º192.168.0.1
DNS:202.96.134.133
202.96.128.133
192.168.0.1
*****************************************

I have tried this:
at /etc/rc.d/rc.local
write:
echo 1>/proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o ppp0 -j MASQUERADE
...
The firewall choices are:
0 - NONE: This script will not set any firewall rules. You are responsible
for ensuring the security of your machine. You are STRONGLY
recommended to use some kind of firewall rules.
1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation
2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway
for a LAN
Choose a type of firewall (0-2): 2
...

The result was: PC no.1 could be connected to the Internet through ADSL and ping other PCs succefully. Others can ping PC no.1 as well but they could go to the Internet. So...

Will somebody tell me what I did wrong and how I should fix it, and why?

Thank you.

Sincererly,

HOUSCOUS
 

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dxfileshare(8)						      System Manager's Manual						    dxfileshare(8)

NAME
dxfileshare - Exports local directories and mounts directories from the network SYNOPSIS
/usr/bin/X11/dxfileshare DESCRIPTION
Use the File Sharing application, dxfileshare, to: Export (or share) local UNIX directories to the network Stop exporting UNIX local direc- tories to the network Specify which directories mounted from the network are to be remounted every time the system is rebooted, that is, add an entry to the /etc/fstab file Add, change, or delete NFS entries from the /etc/exports file Share local UNIX directories with a per- sonal computer (PC) when Advanced Server for UNIX is installed on your system Display local directories that are shared (exported) with the network Display network mounts (directories that can be mounted from the network) The File Sharing application can also be invoked from the CDE Application Manager from the following categories: Application Group: System_Admin System Admin Subgroup: Daily Admin Online help is available for the File Sharing application by clicking on any Help button or using the Help pull-down menu. RESTRICTIONS
You must have root privileges to use certain features of File Sharing. Namely, the ability to export (or share) a directory or to modify the properties of a directory that is already being exported. You must have Advanced Server for UNIX installed on your system to share local directories with PCs. FILES
Defaults that are shared by the graphical and command line user interface. File Sharing uses the same file as the Host Manager application. File Sharing application File Sharing help volume Directory containing File Sharing application icons Application defaults file that sets the default values for the X resources File Sharing message catalog Message catalog containing File Sharing location IDs for on-item help i18n_motif_shared_text.cat Message catalog containing application-independent messages i18n_motif_shared_text_LocIds.cat Message catalog containing application-independent location IDs for on-item help SEE ALSO
Commands: X(1X), automount(8), bcheckrc(8), mount(8), mountd(8), showmount(8), umount(8) Functions: getfsstat(2), getmntinfo(3), getmntinfo_r(3), mount(2), mount(2sv), umount(2), umount(2sv), umount(3) Files: exports(4), fstab(4), mountdtab(4) Tru64 UNIX System Administration ASU Installation and Administration Guide ASU Concepts and Planning Guide dxfileshare(8)
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