手把手教你安装安全的Linux系统

日志&备份
升级
Security Through Obscurity
删除/etc/issue,/etc/issue.net
修改端口
日志与备份
正确设置/var/log权限
设置自动备份并测试(/etc,/var/log)
备份/var/lib/rpm/fileindex.rpm与/var/lib/rpm/packages.rpm,用rpm –Va检查