我最近请求更改我的 root 密码，成功了，我可以在控制台上使用它。但是，我的 IP 地址停止工作了。访问我的域和 SSH 都响应了连接超时错误。
在我的根密码更改并且服务器重新启动之前，它一直运行良好。
我使用此命令检查了错误日志：
tail -50 /var/log/apache2/error.log
这就是我得到的：
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 994] AH00163: Apache/2.4.18 (Ubuntu) OpenSSL/1.0.2g configured -- resuming normal operations
[Mon Jan 20 00:47:06.157921 2020] [core:notice] [pid 994] AH00094: Command line: '/usr/sbin/apache2'
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 981] AH00169: caught SIGTERM, shutting down
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 970] AH00163: Apache/2.4.18 (Ubuntu) OpenSSL/1.0.2g configured -- resuming normal operations
[Mon Jan 20 00:47:06.157921 2020 [core:notice] [pid 970] AH00094: Command line: '/usr/sbin/apache2'
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 903] AH00169: caught SIGTERM, shutting down
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 903] AH00163: Apache/2.4.18 (Ubuntu) OpenSSL/1.0.2g configured -- resuming normal operations
[Mon Jan 20 00:47:06.157921 2020] [core:notice] [pid 994] AH00094: Command line: '/usr/sbin/apache2'
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 994] AH00169: caught SIGTERM, shutting down
[Mon Jan 20 00:47:06.157921 2020] [mpm_prefork:notice] [pid 970] AH00163: Apache/2.4.18 (Ubuntu) OpenSSL/1.0.2g configured -- resuming normal operations
[Mon Jan 20 00:47:06.157921 2020] [core:notice] [pid 990] AH00094: Command line: '/usr/sbin/apache2'
注意到了吗SIGTERM, shutting down？我认为 Apache 正在崩溃并且服务正在自动重启。
起初我以为这是由于内存使用率低造成的，然后我用这个命令进行了检查free -mh
结果如下。我的内存足够了：
total used free shared buff/cache available
Mem: 1.9G 259M 1.4G 612K 258M 1.6G
Swap: 0B 0B 0B
防火墙处于非活动状态，因此没有任何东西阻止端口 80
sudo ufw status
Status: Inactive
我还运行这个命令来查看正在监听的内容
sudo lsof -iTCP -sTCP:LISTEN -P
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
sshd 812 root 3u IPv4 18468 0t0 TCP localhost:53 (LISTEN)
sshd 812 root 4u IPv6 18468 0t0 TCP *:22 (LISTEN)
mysqld 899 mysql 29u IPv4 19368 0t0 TCP localhost:3306 (LISTEN)
master 1089 root 13u IPv4 19478 0t0 TCP *:25 (LISTEN)
master 1089 root 14u IPv6 19479 0t0 TCP *:25 (LISTEN)
我可以配置我的 Apache 吗？以下是在我的/etc/apache2/ports.conf
grep "Listen" /etc/apache2/*.conf
etc/apache2/ports.conf: Listen 0.0.0.0
etc/apache2/ports.conf: Listen 433
etc/apache2/ports.conf: Listen 433
我甚至无法重新启动 apache，它不允许我
service apache2 restart
Job for apache2.service failed because the control proccess exited with error code. See "systemctl status apache2.service" and "journalctl -xe" for details.
运行该命令后我得到了以下信息：
apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset
Drop-In: /lib/systemd/system/apache2.service.d
apache-system.conf
Active: failed (Result: exit-code) since Mon 2020-01-20 12:16:35 UTC; 4min 9s
Process: 1616 ExecStart=/usr/sbin/apachectl start (code=exited, status=1/FAILURE
这是正常的吗？请帮忙