升级CentOS6.5内核，开启Nginx的fastopen和reuseport特性

来源：互联网发布：编程使用的安卓模拟器编辑：程序博客网时间：2024/06/18 07:56

1. 导入public key

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

2. 安装ELRepo到Centos6.5中

rpm -ivh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm

3. 安装kernel-lt

yum --enablerepo=elrepo-kernel install kernel-lt -y

4. 修改grub引导顺序

#编辑grub配置文件vim /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/sda3#          initrd /initrd-[generic-]version.img#boot=/dev/sdadefault=0  #一般最新升级的内核映像位于第一位，所以这里保证 default=0即可！timeout=5splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle CentOS (3.10.101-1.el6.elrepo.x86_64)  #最新3.10.101内核也就是这个了！        root (hd0,0)        kernel /vmlinuz-3.10.101-1.el6.elrepo.x86_64 ro root=UUID=6e3dc2ee-2daf-48a7-96e4-8b7ca821c23c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet        initrd /initramfs-3.10.101-1.el6.elrepo.x86_64.imgtitle CentOS (2.6.32-573.22.1.el6.x86_64)        root (hd0,0)        kernel /vmlinuz-2.6.32-573.22.1.el6.x86_64 ro root=UUID=6e3dc2ee-2daf-48a7-96e4-8b7ca821c23c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet        initrd /initramfs-2.6.32-573.22.1.el6.x86_64.imgtitle CentOS (2.6.32-431.el6.x86_64)        root (hd0,0)        kernel /vmlinuz-2.6.32-431.el6.x86_64 ro root=UUID=6e3dc2ee-2daf-48a7-96e4-8b7ca821c23c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet        initrd /initramfs-2.6.32-431.el6.x86_64.img

启用特性

echo "net.ipv4.tcp_fastopen = 3" >>/etc/sysctl.conf

重新编译

./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_v2_module --with-http_ssl_module --with-http_gzip_static_module --with-http_realip_module --with-cc-opt=-DTCP_FASTOPEN=23

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