方法
1、修改系统变量
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf2、保存生效
sysctl -p3、查看内核是否已开启BBR
sysctl net.ipv4.tcp_available_congestion_control显示以下即已开启：
# sysctl net.ipv4.tcp_available_congestion_control
net.ipv4.tcp_available_congestion_control = bbr cubic reno4、查看BBR是否启动
lsmod | grep bbr显示以下即启动成功：
# lsmod | grep bbr
tcp_bbr 20480 14http://port.ping.pe/
前面买的那个VPS，在国内80端口被封了。
ping正常，443也正常。。。
墙，真的是个性。。
https://pacificrack.com/portal/cart.php?a=add&pid=45&aff=1705
Post New Year Sale | 1G KVM VPS
1G RAM
13 GB RAID-10 SSD
1x Intel Xeon vCore CPU
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1 Gigabit Link speed
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1 Free Dedicated IP Address IP Space
KVM Virtualization
V2Ray 4.22.1 (V2Fly, a community-driven edition of V2Ray.) Custom (go1.13.5 windows/386)
A unified platform for anti-censorship.
2020/03/18 10:43:29 [Warning] v2ray.com/core: V2Ray 4.22.1 started
2020/03/18 10:43:31 tcp:127.0.0.1:63956 accepted tcp:www.google.com:443 [proxy]
2020/03/18 10:43:31 tcp:127.0.0.1:63957 accepted tcp:lh3.googleusercontent.com:443 [proxy]
2020/03/18 10:43:31 tcp:127.0.0.1:63958 accepted tcp:www.gstatic.com:443 [proxy]
2020/03/18 10:43:31 tcp:127.0.0.1:63959 accepted tcp:apis.google.com:443 [proxy]
2020/03/18 10:43:32 [Warning] [2798544048] v2ray.com/core/app/proxyman/outbound: failed to process outbound traffic > v2ray.com/core/proxy/vmess/outbound: connection ends > v2ray.com/core/proxy/vmess/outbound: failed to read header > v2ray.com/core/proxy/vmess/encoding: failed to read response header > websocket: close 1000 (normal)
2020/03/18 10:43:32 [Warning] [2303866632] v2ray.com/core/app/proxyman/outbound: failed to process outbound traffic > v2ray.com/core/proxy/vmess/outbound: connection ends > v2ray.com/core/proxy/vmess/outbound: failed to read header > v2ray.com/core/proxy/vmess/encoding: failed to read response header > websocket: close 1000 (normal)
2020/03/18 10:43:32 [Warning] [2630533614] v2ray.com/core/app/proxyman/outbound: failed to process outbound traffic > v2ray.com/core/proxy/vmess/outbound: connection ends > v2ray.com/core/proxy/vmess/outbound: failed to read header > v2ray.com/core/proxy/vmess/encoding: failed to read response header > websocket: close 1000 (normal)
2020/03/18 10:43:32 [Warning] [2666542453] v2ray.com/core/app/proxyman/outbound: failed to process outbound traffic > v2ray.com/core/proxy/vmess/outbound: connection ends > v2ray.com/core/proxy/vmess/outbound: failed to read header > v2ray.com/core/proxy/vmess/encoding: failed to read response header > websocket: close 1000 (normal)
2020/03/18 10:43:43 tcp:127.0.0.1:63970 accepted tcp:android.clients.google.com:443 [proxy]
2020/03/18 10:43:43 [Warning] [2765767886] v2ray.com/core/app/proxyman/outbound: failed to process outbound traffic > v2ray.com/core/proxy/vmess/outbound: connection ends > v2ray.com/core/proxy/vmess/outbound: failed to read header > v2ray.com/core/proxy/vmess/encoding: failed to read response header > websocket: close 1000 (normal)
错误信息就是上面这些。
经过网上查找相关信息。发现是自己电脑时间莫名其妙出错了，差了有半个小时。时间服务器是默认的time.windows.com
ping出来，是这个time.microsoft.akadns.net [20.189.79.72]
直接改注册表HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesW32TimeParameters NtpServer
改成韩国的时间服务器time.bora.net，同步一下时间，问题解决。