[Mailman-Users] install...cjk

[Constantine Koulis]

Hello.
I saw many sites r using mailman and i would like to use it to my website.I 
have a server REDHAT linux 7 with 
qmail,php4.0.5,apache,courier-imap,vmailmgr,mysql
I am newbie to linux and i want to know what means the set-group-id bit 
mentioned in the installation guide.
I opened a user mailman and a group.I gave privileges to the directory 
/home/mailman 777.
How do i proceed?
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