LinuxQuestions.org - starting up

- Slackware (https://www.linuxquestions.org/questions/slackware-14/)

- - starting up (https://www.linuxquestions.org/questions/slackware-14/starting-up-482836/)

Hi I m a newbie in using slackware linux. I am trying to set up a linux server.
This server has 2 NIC one that goes to cisco router and one in internal switch. I have installed disk 1 and 2 (installation disk). Now where should I start now ? I have read few documentation and I am still not clear. I have also downloaded source disk 3 and 4. Whats this for?

Now obviously I want 20 client Pc to access this linux machine to go out to use internet. I just want a server that can control the the flow of internet.Like I want to allow certain sites for my client pcs to access. I know I have to set up squidproxy, samba, DNS. But what shall I do after installing. I in a page where its says root@LAN: ..... (this LAN is my host name)

you would need to setup proper ips for both the nics. use the netconfig command and configure them.

one word: dnsmasq

http://www.gentoo.org/doc/en/home-router-howto.xml

here's the sweet spot.

Code:

┌─(clay@SobeK:pts/0)──────────────────────────────(~)─┐

└─(%)─ cat /root/Scripts/netshare.NAT.sh

# Clean up

iptables -F

iptables -t nat -F



# Default policies to handle unmatched traffic

iptables -P INPUT ACCEPT

iptables -P OUTPUT ACCEPT

iptables -P FORWARD DROP



# Variables

export INTERNAL_NET=eth0

export EXT_NET_SOURCE=ath0

export INTERNAL_IP_CLASS=10.10.10.0

export INTERNAL_SUB_CLASS=255.0.0.0



# Lock services to INTERNAL_NET

iptables -I INPUT 1 -i ${INTERNAL_NET} -j ACCEPT

iptables -I INPUT 1 -i lo -j ACCEPT

iptables -A INPUT -p UDP --dport bootps -i ! ${INTERNAL_NET} -j REJECT

iptables -A INPUT -p UDP --dport domain -i ! ${INTERNAL_NET} -j REJECT



# Allowed services via EXT_NET_SOURCE

iptables -A INPUT -p TCP --dport ssh -i ${EXT_NET_SOURCE} -j ACCEPT



# Drop TCP / UDP packets to privileged ports

iptables -A INPUT -p TCP -i ! ${INTERNAL_NET} -d 0/0 --dport 0:1023 -j DROP

iptables -A INPUT -p UDP -i ! ${INTERNAL_NET} -d 0/0 --dport 0:1023 -j DROP



# NAT

iptables -I FORWARD -i ${INTERNAL_NET} -d ${INTERNAL_IP_CLASS}/${INTERNAL_SUB_CLASS} -j DROP

iptables -A FORWARD -i ${INTERNAL_NET} -s ${INTERNAL_IP_CLASS}/${INTERNAL_SUB_CLASS} -j ACCEPT

iptables -A FORWARD -i ${EXT_NET_SOURCE} -d ${INTERNAL_IP_CLASS}/${INTERNAL_SUB_CLASS} -j ACCEPT

iptables -t nat -A POSTROUTING -o ${EXT_NET_SOURCE} -j MASQUERADE



# Enable IP Fowarding

echo 1 > /proc/sys/net/ipv4/ip_forward

for f in /proc/sys/net/ipv4/conf/*/rp_filter ; do echo 1 > $f ; done

In this case I've gone and shared my wireless to foward internet to my lan (I was setting up another laptop at the time)

thanks for kind help. I think one of my NIC is not comming up. It only list one card. Before loading slackware I added new NIC which is compatible with Linux( as it said on the back of the packet)
how to initialise this new NIC.

thank you for that...

when I type ifconfig -a
I cannot see the eth0 portion fully. The screen starts at

inet addr:..............

eth1 link.....

is something wrong?

Thread closed. Continuation is at http://www.linuxquestions.org/questi...d.php?t=483259
Please keep questions about the same topci together, thanks.