sslug-teknik team mailing list archive

[Jørgen Heesche <heesche@xxxxxxxxxxx>]

donald_j_axel wrote:

> Du kan se forskellige tools til firewall på http://cvs.linuxbog.dk/
>
> mere præcist
>
> http://cvs.linuxbog.dk/sikkerhed/bog/linux-som-firewall.html#sikkerhed-iptables-cmd

Jeg har nu efter disse retningslinier (eksemplet med door1) opsat en 
firewall.
Det var nemt, og det fungerer bare.
Der er kun lige en enkelt løs ende vedrørende ip_forward. I flg. 
vejledning skal ip_forward enables med
'echo 1 >> /proc/sys/net/ipv4/ip_forward', for at det kan fungere.
Men bagefter viser en 'cat /proc/sys/net/ipv4/ip_forward', at ip_forward 
er disabled. Hvorfor?

På http://grc.com/
https://www.grc.com/x/ne.dll?bh0bkyd2
her jeg kørt et check med resultatet:

GRC Port Authority Report created on UTC: 2004-07-23 at 20:55:25

Results from scan of ports: 22, 111, 443, 6000, 10000

    0 Ports Open
    0 Ports Closed
    5 Ports Stealth
    ---------------------
    5 Ports Tested

        ALL PORTS tested were found to be: STEALTH.

        TruStealth: PASSED - ALL tested ports were STEALTH,
                           - NO unsolicited packets were received,
                           - NO Ping reply (ICMP Echo) was received.


--
Med venlig hilsen

Jørgen Heesche
mailto:heesche@xxxxxxxxxxx