系统安全.pdf

文件系统属性Secureindividualfilescanbedonebymodifyingthepermissionsorbychangingtheuserand/orgroupownershipofindividualfiles▪Theextfilesystemshaveadditionalfileattributesthatcanhelpsecureafilefrombeingoverwrittenordeleted▪chattr+afile:appendonly,preventsfile