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Improve sysctl settings

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- For enabling TCP BBR congestion control, add a check to make sure
  tcp_congestion_control exists.
This commit is contained in:
hwdsl2 2022-11-20 15:05:02 -06:00
parent 0a76ae48f8
commit f05bf31083
1 changed files with 2 additions and 1 deletions
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3
openvpn-install.sh
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@ -424,7 +424,8 @@ update_sysctl() {
|| { /bin/rm -f "$conf_opt"; touch "$conf_opt"; }
# Enable TCP BBR congestion control if kernel version >= 4.20
if modprobe -q tcp_bbr \
&& printf '%s\n%s' "4.20" "$(uname -r)" | sort -C -V; then
&& printf '%s\n%s' "4.20" "$(uname -r)" | sort -C -V \
&& [ -f /proc/sys/net/ipv4/tcp_congestion_control ]; then
cat >> "$conf_opt" <<'EOF'
net.core.default_qdisc = fq
net.ipv4.tcp_congestion_control = bbr