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IRCHelper.co.uk |
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Virtual World Documentation - 2/april/1998 Our IRC servers use virtual world to provide some protection to users who want it against host mask being visible to other users. If you have this on (which is the default when you log on to server) others will not be able to see your exact hostname. This can provide some protection against nuking and other banes of IRC life. Virtual world protection is NOT foolproof - please see the here for more details. To turn virtual world off, do /msg nick -x To turn virtual world on, do /msg nick +x Brief explanation: It uses a hash to create a different but unique host for each hostname. This is used to 'cover' up real hostnames from being used as a source of nuking and other attacks. The domain name remains intact. This is not a secure method, since the host can be recovered with brute force (just like your passwd file can be recovered with brute force). This idea is genuinely based on Austnet and Microsoft, with a final one hopefully to be based more on Microsoft. It is not complicated and shouldn't be prone to errors, but the "idea" is likely to have problems. What it does: It uses ElfHash() to create the unique host, there is a slight possibility of a collision, but that possibility is hopefully 1 in 2^32. There are other hashing algorithms to choose from, but ElfHash is by far the best. DESHash uses your generic off-the-shelf password hashing algorithm, and it requires the crypt library. It uses crypt(). It doesn't work as of this moment. :) What it needs to know: nothing
really, except your hostname.
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