How to upgrade the Linux Kernel of debian 8 jessie
uname -a vi /etc/apt/sources.list.d/sources.list deb http://http.debian.net/debian jessie-backports main deb-src http://http.debian.net/debian jessie-backports main apt-get update apt-get dist-upgrade apt-cache search linux-image apt-get install -t jessie-backports linux-image-amd64 update-grub apt-get autoclean apt-get autoremove reboot dpkg -l|grep linux-image apt-get purge ！！！！示例！！！！ 比如我是有这两个内核，所以我把这两个删掉，不要照着我的这个步骤做，自己换成你VPS的内核名称！！！ apt-get purge linux-image-3.16.0-4-amd64 apt-get purge linux-image-amd64 开启bbr modprobe tcp_bbr echo “tcp_bbr” >> /etc/modules-load.d/modules.conf echo “net.core.default_qdisc=fq” >> /etc/sysctl.conf echo “net.ipv4.tcp_congestion_control=bbr” >> /etc/sysctl.conf 执行这个保存生效更改。 sysctl -p VPS提示： net.core.default_qdisc = fq net.ipv4.tcp_congestion_control = bbr 关闭bbr sed -i ‘/net.core.default_qdisc=fq/d’ /etc/sysctl.conf sed -i ‘/net.ipv4.tcp_congestion_control=bbr/d’ /etc/sysctl.co...