Problhma Security ...

[George Daflidis-Kotsis]

On Mon, 8 Feb 1999, Mike Flouris wrote:

> Exw ena 486 PC me RedHat poy kanei host web pages kapoias mikrhs
> etaireias. Prin apo ligo kairo to eixan xakeriasei, eixan parei kai
> allaksei passwords, etc. To ksanaesthsa me Redhat 5.1 (paliotera eixe
> to 4.1) kai shmera ksanaegine h zhmia ...
> An kapoios exei antimetwpisei paromoio problhma, poia nomizei oti
> einai h kalyterh lysh gia to problhma.
> Tha lythei me firewalling, 'h isws me kati pio aplo / diaforetiko ?

Na baleis ena distribution me ligotera suid root programmata, na kaneis
ton kernel recompile me firewall/IP-firewalling support, na kleiseis auta
pou den xreiazontai apo ton inetd, osa trexoun apo ekei na trexoun mesw
tou tcpd, na tia3eis ta /etc/hosts.{deny,allow} sou swsta kai na pairneis
SWSTA backups. A, kai na xrhsimopoieis oso pio polu mporeis sshd kai oxi
ta sumbatika telnet/ftp enw tautoxrona de moirazeis user accounts epanw.

Auta einai h bash gia kalh asfaleia kai oxi oi malakies pou 8a akouseis
tou stul "pane sto rootshell kai antikatesthse ta epikundina binaries"
kai ahdies pou sunh8ws kanoun oi "hacker" tou kwlou.


--
-- George Daflidis-Kotsis -- <gdk at demon.net> -- Demon Internet Ltd. --

--
====================================================================
Gia boithia (h na diagrafhte) e-mail sto majordomo at hellug.gr
Ta archives tis listas einai sto http://lists.hellug.gr
prin steilete kapoia erothsh psakte mipos exei hdh apanththei.
Gia opoiodipote problima stilte e-mail ston owner-linux-greek-users
====================================================================