Firewall se ena mhxanhma?

[Antonis Kanavouras]

NM wrote:
> 
> Kalimera sas
> Diavasa to HOWTO gia to firewall kai stis apaitiseis syskeywn (hardware)
> anaferei tin ypar3i kartas diktyou. Einai ypoxrewtiki, an to 8elw
> se ena systhma mono?
Oxi. Apla to HOWTO:
1)8ewrei oti exeis ontws sovaro logo gia firewalling
2)Dinei paradeigmata kapws pio polyploka apo to na elegxeis aplws to ti
pernaei apo to ppp0 interface sou otan syndeesai sto internet me
dial-up. 


> Epishs na exei (o firewall) dyo IP ari8moys diktyou.
Oxi o firewall den exei IP's. Ip's exoun ta network interfaces.

Mallon den exei nohma na proxwrhseis se paixnidia me to firewalling
prin:
1) Diavaseis toulaxiston ta basics gia ta diktya, to TCP/IP kai ta
synafh.
2) Ola ta HOWTOs pou anaferontai sto networking

> Ginetai kat'arxhn sthsimo firewall gia ena mhxanhma?
Nai. To erwthma einai xreiazetai? Otan syndeesai me ton provider sou
fovasai st' alh8eia oti kapoios 8a kanei portscanning sto
ppp_234.your_provider.gr kai, molis vrei merikes ports anoixtes 8'
arxisei na trivei ta xeria tou kai na organwnei thn tromerh crackeria
tou 21ou aiwna?
Alla kai na mh xreiazetai to paixnidi de vlaptei. Einai poly didaktiko.

> Ean nai, poia man pages na akolou8hsw?
1)Prin ftaseis sta man pages na diavaseis gia ta proanafer8enta. Meta to
FIREWALLING-HOWTO. Meta xana to FIREWALLING-HOWTO. Meta -ypo8etontas oti
exeis enan sxetika fresko kernel- to IPCHAINS-HOWTO. (An exeis arxaio
kernel na valeis kainourio. Den exei nohma en etei 2000 na asxoleisai me
to ipfwadm (to palio utility pou evaze firewall rules). Meta xana to
IPCHAINS-HOWTO kok.
 
2) Kalytera xehna to 1 kai perimene na vgei o 2.4 kernel opote den 8a'
xoume ipchains alla iptables. (O 2.4 se beta ekdosh yparxei hdh,
IPTABLES-HOWTO den nomizw na yparxei)


Antonis
-- 
Comtuters are useless. They can only give answers...

	Pablo Picasso

--
linux-greek-users mailing list -- http://lists.hellug.gr