Install BBR about cloak HOT 3 CLOSED

TBH I didn't know the existance of BBR before this post.

I read around and found this quite promising, and yes I would say it's recommended to enable BBR, and by the looks of it, it's as simple as setting a sysctl parameter. However I don't like this script, because all it does is basically upgrade the kernel, and set sysctl, and then reboot the system. These steps can easily be done manually, and for me personally, I wouldn't want a script to control my kernel upgrade.

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Regarding the scripts in general, I don't like the concept of a lot of them. That's why I've been not very keen on working on that build script. If it's for downloading a readily-compiled binary, install shadowsocks-libev using apt and guide the user through the configuration, then yes it is a good idea, and it's especially useful for those who are not very familiar with Linux. Compiling a software from source, on the other hand, is something you'd expect only experienced Linux user would do, which means that a automatic script is redundant. There is also an issue of how much to compile. In the particular script I forked from teddysun for this project, it compiles libsodium and libev (and prehaps a bunch of other libs) instead of installing the readily available libsodium-dev and libevdev from apt - not everyone wants to do this. Of course I can provide a choice in the script on whether they want to compile the libs on their own machine or just install the apt version, but if the users of the scripts know what they need, they probably didn't need to use the script at all in the first place.

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echo '* soft nofile 51200' >> /etc/security/limits.conf

echo '* hard nofile 51200' >> /etc/security/limits.conf

ulimit -n 51200

rm /etc/sysctl.conf

echo 'fs.file-max = 51200
net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
net.core.netdev_max_backlog = 250000
net.core.somaxconn = 4096
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_fin_timeout = 30
net.ipv4.tcp_keepalive_time = 1200
net.ipv4.ip_local_port_range = 10000 65000
net.ipv4.tcp_max_syn_backlog = 8192
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_fastopen = 3
net.ipv4.tcp_mem = 25600 51200 102400
net.ipv4.tcp_rmem = 4096 87380 67108864
net.ipv4.tcp_wmem = 4096 65536 67108864
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_congestion_control = hybla' >> /etc/sysctl.conf

sysctl -p

Install BBR

modprobe tcp_bbr

echo "tcp_bbr" >> /etc/modules-load.d/modules.conf

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf

echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf

sysctl -p

Check BBR

sysctl net.ipv4.tcp_available_congestion_control

sysctl net.ipv4.tcp_congestion_control

lsmod | grep bbr

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