firewall and Xresolution ?

[joao.miguel.ferreira.19740720@portugalmail.pt]

Hello Debian people,

I'm new on Debian. I have worked before with RH, Mandrake and fedora mainlly.

I've just intalled a new Debian and have 2 questions

1) is there a simple way interfaces to setting up a simple firewall (blocking
all except http and ssh), some scritp or some GUI... ?

2) the same for reconfiguring the screen resolution ?


Thanks

jmf




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