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grey / tcp.sh

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1 cat > /etc/sysctl.conf << EOF
2 fs.file-max = 6815744
3 net.ipv4.tcp_no_metrics_save=1
4 net.ipv4.tcp_ecn=0
5 net.ipv4.tcp_frto=0
6 net.ipv4.tcp_mtu_probing=0
7 net.ipv4.tcp_rfc1337=0
8 net.ipv4.tcp_sack=1
9 net.ipv4.tcp_fack=1
10 net.ipv4.tcp_window_scaling=1
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grey / SQL - Time

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Base on PostgreSQL
1 SET TIME ZONE 'Asia/Shanghai';
2 SHOW TIME ZONE; -- 验证
3 SELECT now(); -- 现在会显示 +08
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