Networking questions

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I have a few questions, here goes:    1. My inetd.conf files contains entries such as these ones:             #:STANDARD: These are standard services.        #:BSD: Shell, login, exec and talk are BSD protocls       These are of the form #:LABEL: (what the file states). Are these enabled or commented  out? I want to disable all rlogin,  telnet, rsh, ftp, and whatnot (just running a firewall).      2. Can I turn on rp_filter without disrupting "anything"? Does it need to be turned on during boot up (before netwrok configuration)?    3. How can I unsinstall ipmasq? And do I run my ipchains rules at startup (and echo 1 > ip_forward and similar commands)?    4.  I want to log some specific network trafic. Where can I specify in which file the output of such a log should go?    5. I know there's a REDIRECT target in ipchains.(how)  Can I use this target to allow outside connection to one of my local hosts? Not sure, but I think I need to allow outside connection for  PEER-TO-PEER network games to work.    6. Is it safe to simply allow all OUTPUT datagrams (ipchains -P output ACCEPT)?    7. Can I block all TCP connection request (-y) without disrupting web, mail and whatnot access?    8. What usefullness to the following rules have:    OUTPUT    ACCEPT     ! TCP      0.0.0.0/0     224.0.0.0/4     *->*      INPUT    ACCEPT     ALL     0.0.0.0/0 2    55.255.255.255         Thx in advanced for any help provide!  Really appreciate it.