proxy のconf で$hostを$http_hostを間違えて rails のinvalid authentication tokenとなった。 nginxの $host 変数は in this order of precedence: host name from the request line, or host name from the “Host” request header field, or the server n…

echo "powersave" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor

find /home/ /var/ /etc/ /opt/ /srv/ /usr /opt -cmin -1

sudo du -a / 2>/dev/null | sort -n -r | head -n 20

go get -u ./...