ブログ - Raspbian 9.4上のApache2の実行状況確認，停止，起動
Apache HTTPD サーバのの停止と起動方法を確認．
Apache Web Serverを停止してステータスを確認．
停止していますね．
次に，起動してステータス確認．
プロセスを確認．
www-dataというユーザで起動している模様．
念のために，リモートからログインできないように設定されているか確認．
ちゃんとシェルがない状態でした．
pi@raspberrypi:~ $ service apache2 status🆑
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2018-09-02 01:34:42 JST; 17h ago
Main PID: 459 (apache2)
CGroup: /system.slice/apache2.service
├─ 459 /usr/sbin/apache2 -k start
├─ 486 /usr/sbin/apache2 -k start
├─ 487 /usr/sbin/apache2 -k start
├─ 488 /usr/sbin/apache2 -k start
├─ 489 /usr/sbin/apache2 -k start
├─ 490 /usr/sbin/apache2 -k start
├─7383 /usr/sbin/apache2 -k start
├─7384 /usr/sbin/apache2 -k start
└─7385 /usr/sbin/apache2 -k start
9月 02 01:34:41 raspberrypi systemd[1]: Starting The Apache HTTP Server...
9月 02 01:34:42 raspberrypi apachectl[419]: AH00558: apache2: Could not reliably determine the server's fully qualified
9月 02 01:34:42 raspberrypi systemd[1]: Started The Apache HTTP Server.
pi@raspberrypi:~ $
pi@raspberrypi:~ $ sudo service apache2 stop🆑
pi@raspberrypi:~ $ service apache2 status🆑
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: inactive (dead)🈁 since Sun 2018-09-02 19:01:59 JST; 5s ago
Process: 7422 ExecStop=/usr/sbin/apachectl stop (code=exited, status=0/SUCCESS)
Main PID: 459 (code=exited, status=0/SUCCESS)
9月 02 01:34:41 raspberrypi systemd[1]: Starting The Apache HTTP Server...
9月 02 01:34:42 raspberrypi apachectl[419]: AH00558: apache2: Could not reliably determine the server's fully qualified
9月 02 01:34:42 raspberrypi systemd[1]: Started The Apache HTTP Server.
9月 02 19:01:59 raspberrypi systemd[1]: Stopping The Apache HTTP Server...
9月 02 19:01:59 raspberrypi apachectl[7422]: AH00558: apache2: Could not reliably determine the server's fully qualified
9月 02 19:01:59 raspberrypi systemd[1]: Stopped The Apache HTTP Server.
pi@raspberrypi:~ $
次に，起動してステータス確認．
pi@raspberrypi:~ $ sudo service apache2 start🆑
pi@raspberrypi:~ $ service apache2 status🆑
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2018-09-02 19:02:11 JST; 2s ago
Process: 7422 ExecStop=/usr/sbin/apachectl stop (code=exited, status=0/SUCCESS)
Process: 7466 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 7470 (apache2)
CGroup: /system.slice/apache2.service
├─7470 /usr/sbin/apache2 -k start
├─7474 /usr/sbin/apache2 -k start
├─7475 /usr/sbin/apache2 -k start
├─7476 /usr/sbin/apache2 -k start
├─7477 /usr/sbin/apache2 -k start
└─7478 /usr/sbin/apache2 -k start
9月 02 19:02:11 raspberrypi systemd[1]: Starting The Apache HTTP Server...
9月 02 19:02:11 raspberrypi apachectl[7466]: AH00558: apache2: Could not reliably determine the server's fully qualified
9月 02 19:02:11 raspberrypi systemd[1]: Started The Apache HTTP Server.
pi@raspberrypi:~ $
pi@raspberrypi:~ $ ps -ef|grep apache🆑
root 7470 1 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 7474 7470 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 7475 7470 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 7476 7470 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 7477 7470 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 7478 7470 0 19:02 ? 00:00:00 /usr/sbin/apache2 -k start
pi 7485 5883 0 19:04 pts/0 00:00:00 grep --color=auto apache
pi@raspberrypi:~ $
念のために，リモートからログインできないように設定されているか確認．
pi@raspberrypi:~ $ cat /etc/passwd|grep www-data🆑
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin🈁
pi@raspberrypi:~ $
