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Securing and Optimizing Linux RedHat Edition phần 3

thông tin IS cảm thấy trong văn bản rõ ràng. Một số máy chủ FTP cho phép bạn kết nối Nếu không có một tài khoản trên hệ thống. Đối với luận án, sử dụng tên người dùng ẩn danh và địa chỉ email của bạn như là cho mật khẩu. | Linux Kernel CHAPTER 0 5 net video and scsi from usr linux include to our new place usr src linux-2.2.14 include . After we remove the entire source directory where we had compiled the new kernel we create a new symbolic link named linux under usr src that points to our new usr src linux-2.2.14 include directory. With these steps future compiled programs will know where to look for headers related to the kernel on your server. NOTE This step will allow us to gain space on our hard drive and will reduce the risk of security. The Linux kernel source directory handles a of lot files and is about 75 MB in size when uncompressed. With the procedure described above our Linux kernel directory began approximately 3 MB in size so we save 72 MB for the same functionalities. 6. Finally you need to edit the etc lilo.conf file to make your new kernel one of the boot time options Step 1 Edit the lilo.conf file vi etc lilo.conf and make the appropriated change on the line that read image boot . root@deep vi etc lilo.conf boot dev sda map boot map install boot boot.b prompt timeout 00 restricted password somepasswd image boot vmlinuz-kernel.version.number add your new kernel name file here . label linux root dev sda6 read-only NOTE Don t forget to remove the line that read initrd boot initrd-2.2.12-20.img in the lilo.conf file since this line is not necessary now monolithic kernel doesn t need an initrd file . Step 2 Once the name of the new kernel version has been put in the lilo.conf file as shown above we update our lilo.conf file for the change to take effect with the following command root@deep sbin lilo -v LILO version 21 Copyright 1992-1998 Werner Almesberger Reading boot sector from dev sda Merging with boot boot.b Boot image boot vmlinuz-2.2.14 Added linux boot boot.0800 exits - no backup copy made. Writing boot sector. IMPORTANT NOTE If you say NO to the configuration option Unix98 PTY support CONFIG_UNIX98_PTYS during your kernel configuration you must edit the etc .