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Webサーバのメンテナンスを実施

パッケージアップグレード

$ sudo apt update

$ sudo apt upgrade

$ shutdown -r now

ログローテート

$ sudo vi /etc/logrotate.conf
# see "man logrotate" for details

# global options do not affect preceding include directives

# rotate log files weekly
#weekly
monthly ← 変更

# keep 4 weeks worth of backlogs
#rotate 4
rotate 36 ← 変更


# create new (empty) log files after rotating old ones
create

# use date as a suffix of the rotated file
#dateext

# uncomment this if you want your log files compressed
compress

# packages drop log rotation information into this directory
include /etc/logrotate.d

# system-specific logs may also be configured here.

apache2の調整してなかったので設定

$ sudo vi /etc/logrotate.d/apache2
/var/log.hdd/apache2/*.log {
    monthly             #was daily
    missingok
    rotate 36           #was 14
    compress
    delaycompress
    notifempty
    create 640 root adm
    sharedscripts
    prerotate
        if [ -d /etc/logrotate.d/httpd-prerotate ]; then
            run-parts /etc/logrotate.d/httpd-prerotate
        fi
    endscript
    postrotate
        if pgrep -f ^/usr/sbin/apache2 > /dev/null; then
            invoke-rc.d apache2 reload 2>&1 | logger -t apache2.logrotate
        fi
    endscript
}

syslogなど他はデフォルトで問題ない

UPSのチェック

バッテリー電圧の確認

問題ないようだ

CPU温度

ついでにCPU温度を表示するコマンドを作成

#!/bin/sh
#
for CORE in 0 1 2 3
do
    if [ -r "/sys/class/thermal/thermal_zone$CORE" ]
    then
        echo "CPU-$CORE: \c"
        echo "scale=1;`cat /sys/class/thermal/thermal_zone$CORE/temp` / 1000" | bc -l
    fi
done

exit 0

4COREまで存在すれば表示