Leased Line & Ipchains

[Ioannou]

Geia se olous.
Elpizw kapoios na me katatopisei

Exw ena linux server  (suse 6.2) pou einai syndedemenos monima me to
internet mesw ethernet me kanoniki IP, se auto ton server exw syndesei
ena leased line modem me to opoio syndew sthn allh plevra ena linux
(suse 6.0) mhxanima pali.(ypopsin oti to allo mhxanhma exei fake IP's,
to idio kai h leased line)
To problhma mou proekipse ota allaxa kai ebala apo suse 6.0 to suse 6.2
sto kentriko mhxanima, apo tote den mporw na bgw sto internet apo to
mhxanhma me thn leased line. Sto 6.2 epidei exei allaxh o pyrhnas
xrisimopoiei ipchains anti ipfwadm kai etsi exw kolisei

Auto einai to script pou douleva palia, kai ola doulevan roloi

###### ttys0.options ######
rtscts
mru 1500
mtu 1500
passive
192.168.254.1:192.168.254.2
-chap
modem
defaultroute
-pap
persist

####  Leased line UP #####
#!/bin/bash
#/usr/bin/sleep 30
( /usr/sbin/pppd /dev/ttyS0 38400 debug) &



####### IPFWADM Rules ######
#!/bin/bash
#
/sbin/route add -net 192.168.255.0 gw 192.168.254.1 netmask
255.255.255.0
# Clear all
#
/sbin/ipfwadm -F -p deny
/sbin/ipfwadm -F -a m -S 192.168.255.0/24 -D 0.0.0.0/0
/sbin/ipfwadm -F -a m -S 192.168.254.0/24 -D 0.0.0.0/0

Mporei kaneis na me boh8hsei na metatrepsw ta parapanw na doulepsoun me
IPCHAINS  h oti allo xriazete

######## auto ekana egw alla dystixws den doulevei #######

#!/bin/bash
/sbin/route add -net 192.168.255.0 gw 192.168.254.1 netmask
255.255.255.0
#
# Clear all
#
#/sbin/ipchains -P forward DENY
/sbin/ipchains -P forward MASQ
/sbin/ipchains -A forward -j MASQ -s 192.168.255.0/24 -d 0.0.0.0/0
/sbin/ipchains -A forward -j MASQ -s 192.168.254.0/24 -d 0.0.0.0/0

#######

otan kanw ipchains -L apo to apotelesma apo 'ti katalabenw den mou
epitrepei na perasoun DNS request pros to e3w diktyo

auta gia tin wra

euxaristw

C.Ioannou



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