Firewall on Linux.

[Γιώργος Ευθήμερος]

Se sunexeia tou prwtou mou unhmatos (paidia thanx gia tis apantiseis!), na
pros8esw ta e3is:

- To box einai 486/66, 36MB RAM. Trexei (Kuriolektika!!!) RH6.0
egkatestimeno mesw FTP apo NTUA.

- To box exei 2 Ethernet NE2000 compatible adaptors (Mia Genius LAN (I/O
x300, IRQ 9), kai mia Compex FreedomLINE16 (I/O x340, IRQ 3)). Kai oi duo
kartes einai PnP, alla me to katallilo software tis etairias tous, mporei
kaneis na ru8misei I/O kai IRQ (akoma kai an 8a einai PnP h oxi) kata
boulisi. Gia tin egkatastasi mesw FTP, to RH briskei (autoprobe) tin Genius
(Kai oi duo kartes leitourgoun sigoura).

- To box einai sundedemeno se LAN (ergastirio), pou me ti seira tou
sundeetai me megalutero LAN (sxolis), kai pairnei apo ekei DNS kai gateway.
Dhl., ka8e karta mporei (kai prepei, alliws 8a mas kunhgaei o Admin tis
Sxolhs) na parei sugkekrimeno IP (kai host name, antistoixa).

- Meta tin egkatastash tou RH6.0, h Genius karta paizei mpompa. Kompilarw
ton purina gia IP_Forwarding, Masq, firewalling, stinw tin deuteri karta me
to Linuxconf, kanw reboot, kai meta to reboot, kai ta duo eth0 (Genius, me
sugkekrimeni IP kai name) kai eth1(Compex, me allo IP kai name), mou
bgainoun FAILED.

Olo ki olo pou prospa8ousa na stisw, itan ena firewall, gamwto!

Ekliparw gia tin boh8eia sas, magkes.


George.

Γιώργος Ευθήμερος <efthimeros at hotmail.com> wrote in message
news:7s8jml$tqo$1 at edessa.topo.auth.gr...
> Paidia hi,
>
> Eimai sxetika neos sto Linux, kai prospa8w na stisw ena firewall se ena
> linux box, me skopo auto na ginei ena bastion host. Exw kanei to
aparaitito
> compile tou purina, kai exw stisei duo NE2000 compatible Ethernet
> interfaces. Ap' oti diabazw sta HOW-TOs kai sto internet, to epomen bima
> einai to ftia3imo twn rules me to ipchains. Ws edw, wraia.
>
> H erwtisi mou einai i e3is: Enw h prwth (outward) karta paizei kanonika
> (blepw e3w, me blepoun, klp) tin deuteri karta (inward) den ti blepw me
> tipota (ping, tracert, klp.) Yparxei tropos na dw an exei sti8ei kanonika

> kai paizei? Kai epipleon, mporei kaneis na mou dwsei kapoio hint gia to
pws
> 8a stisw tin deuteri karta (inward) san gateway gia ta Winboxes toy
> eswterikou diktuou?
>
> Euxaristw ek tvn prwterwn,
>
> George Efthimeros.
>
>


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