[adhoc] trying to adapt the manual to Arch Linux (not done)

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https://bbs.archlinux.org – There is no relevant information about this on Archwiki and bbs, even of theses of Archlinuxfr about this way to make an adhoc connection easily, I'm trying to do it and add it ArchWiki cause it can help every Arch user cause wicd can't handle multiple connections at once ...I tried the tutorial I was using before, networkmanager make the adhoc connection but nothing can connect to it, maybe iptables/netfilter/firestarter settings could be the problem or something about dnsmasq that don't seem to be exactly the same package on Archlinux.My adhoc is made like a wifi repeater :wla (HowTos)