iptables

Kostas Liakakis kostas at skiathos.physics.auth.gr
Tue Nov 13 12:21:01 EET 2001


"Dimitrios Tsimbidis" <dtsimbid at otenet.gr> wrote in message
news:voups9.g68.ln at news.domain.tsimbi...
> Xrisimopoio to Suse 7.2
> -Xrisimopoio ta iptables kai eno i anafora tou "iptables -L" einai opos
> akribos exo zitisei kai opos akribos tha ithela, apo ekso fainomai me
> anixtes portes san na min eixa katholou firewall. Mipos prepei se kapoio
> sigekrimeno simeio tou boot na balo to scriptaki me tis parametrous tou
> iptables?

An sta deinei me -L shmainei oti einai energa. An den kleinei tis portes pou
0es, mallon kana la0aki exeis... Pes ti 0es na kaneis kai dei3e ti exeis
grapsei na doume.

> -Episis trexo dden trexo ta iptables, kai eno exo sto rc.config
> energopoiimeno to IP_FORWARDING, den leitourgei san router ( p.x. apo
> esoteriko mixanima tou diktiou ping pros ta ekso de leitourgei).

0a eprepe, alla, 3ereis, ta distributions polles fores m****ontai. Gia na
eisai sigouros, bres to boot.local kai echo 1 > /proc/sys/net/ip_forward

Gia na tsekareis oti einai anoixto: cat /proc/sys/net/ip_forward . An sou
dosei 1, einai, an 0 oxi.

Alla gia na doulepseis san router 0a prepei:
1) to mhxanhma apo to diko sou diktyo na exei default gateway ton router sou
(profanos...)
2) to mhxanhma apo to opoio perimeneis apanthsh na 3erei oti gia to diko sou
prive subnet prepei na proo0hsei ta paketa meso tou router sou.

-K.






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