X server opens port 6000 ??

[Koxaras Aris]

On Tue, 7 Apr 1998, PAPADAKIS KONSTANTIN wrote:
> to prose3a me kapoia local portscans, opou apo X eixa anoixta to
> 21 kai to 6000, eno apo consola mono to 21 (ports). 
> einai to port gia na trexoun ta X se emena, kai to apotelesma na 
> stelnetai allou?
> 
> telospandon ego ayto pou 8elo na ri8miso einai na min dexomai
> connections apo allou sto 6000. 
> arkoun oi ri8miseis sta hosts.allow
> kai hosts.deny kai tzampa anisixo, i iparxei kapoio 
> allo arxeio antistoixo?

	1) O Xserver akouei sto tcp port 6000
	2) De xreiazetai na kaneis portscan ton eauto sou. arkei to
"netstat -an |grep LISTEN"
	3) An apo xterm grapseis "xhost" 8a sou pei poioi exoun access
ston Xserver sou. APo default yparxei access mono gia to local mhxanhma.Me
thn entolh p.x. "xhost +linux.tralala.gr" dineis access kai se allo
mhxanhma.
	4) An 8eleis na mhn mporei na synde8ei kaneis mporeis na valeis
kai firewall sthn 6000. Ta hosts.allow hosts.deny paizoun rolo mono se osa
services tou inetd trexoun apo "tcpd"

la la la,
aris


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