# uname -r 2 2.6.32-71.el6.i686
# cd ~ # wget -c http://www.kernel.org/pub/linux/kernel/v3.0/linux-3.2.2.tar.bz2 # tar jxvf linux-3.2.2.tar.bz2 # cd linux-3.2.2
# make mrproper #清除環境變量,即清除配置文件 # make menuconfig #在菜單模式下選擇需要編譯的內核模塊
找到以下選中選項並選中networking support → networking options → network packet filtering framework(netfilter)
(1).core netfilter configuration
(2).IP: Netfilter Configuration
(3).其它模塊可以根據自己的需要進行選擇,若不懂可以參考內核配置手冊.
# make clean #確保所有東西均保持最新狀態. # make bzImage #生成內核文件 # make modules #編譯模塊 # make modules_install #安裝模塊 # make install #安裝
# cat /etc/grub.conf # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/mapper/VolGroup-lv_root # initrd /initrd-[generic-]version.img #boot=/dev/sda default=1 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS Linux (3.2.2) root (hd0,0) kernel /vmlinuz-3.2.2 ro root=/dev/mapper/VolGroup-lv_root rd_LVM_LV=VolGroup/lv_root rd_LVM_LV=VolGroup/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-3.2.2.img title centos (2.6.32-71.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-71.el6.i686 ro root=/dev/mapper/VolGroup-lv_root rd_LVM_LV=VolGroup/lv_root rd_LVM_LV=VolGroup/lv_swap rd_NO_LUKS rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-71.el6.i686.img
# reboot # uname -r 3.2.2