我有一台 AWS Lightsail Bitnami LAMP 7.4.27-16 机器，每天晚上都会在随机时间停止响应。我为新的特定 ftp 用户安装了 LetsEncrypt 证书和 vsftpd。
机器上一切似乎都运行正常。服务器正在监听，CPU 正常，RAM 正常，我可以通过 SSH 连接到它。Apache 和 MariaDb 服务正在运行。只有网站无限加载（http 或 https）。
这些是最后的 access_log 行：
45.95.169.230 - - [11/Mar/2022:02:59:24 +0000] "GET //website/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7120
45.95.169.230 - - [11/Mar/2022:02:59:25 +0000] "GET //wp/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7115
45.95.169.230 - - [11/Mar/2022:02:59:25 +0000] "GET //news/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:25 +0000] "GET //2020/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:25 +0000] "GET //2019/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:25 +0000] "GET //shop/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:26 +0000] "GET //wp1/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7116
45.95.169.230 - - [11/Mar/2022:02:59:26 +0000] "GET //test/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:26 +0000] "GET //wp2/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7116
45.95.169.230 - - [11/Mar/2022:02:59:26 +0000] "GET //site/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
45.95.169.230 - - [11/Mar/2022:02:59:26 +0000] "GET //cms/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7116
45.95.169.230 - - [11/Mar/2022:02:59:27 +0000] "GET //sito/wp-includes/wlwmanifest.xml HTTP/1.1" 404 7117
3.208.15.15 - - [11/Mar/2022:03:09:30 +0000] "GET / HTTP/1.1" 301 234
3.208.15.15 - - [11/Mar/2022:03:09:31 +0000] "GET / HTTP/1.1" 200 2760
这些是错误日志：
[Thu Mar 10 00:00:04.415191 2022] [mpm_event:notice] [pid 31589:tid 140507846433664] AH00493: SIGUSR1 received. Doing graceful restart
[Thu Mar 10 00:00:04.442377 2022] [mpm_event:notice] [pid 31589:tid 140507846433664] AH00489: Apache/2.4.52 (Unix) OpenSSL/1.1.1d configured -- resuming normal operations
[Thu Mar 10 00:00:04.442392 2022] [core:notice] [pid 31589:tid 140507846433664] AH00094: Command line: '/opt/bitnami/apache/bin/httpd -f /opt/bitnami/apache/conf/httpd.conf'
[Fri Mar 11 00:00:03.441124 2022] [mpm_event:notice] [pid 31589:tid 140507846433664] AH00493: SIGUSR1 received. Doing graceful restart
[Fri Mar 11 00:00:03.458966 2022] [mpm_event:notice] [pid 31589:tid 140507846433664] AH00489: Apache/2.4.52 (Unix) OpenSSL/1.1.1d configured -- resuming normal operations
[Fri Mar 11 00:00:03.458981 2022] [core:notice] [pid 31589:tid 140507846433664] AH00094: Command line: '/opt/bitnami/apache/bin/httpd -f /opt/bitnami/apache/conf/httpd.conf'
[Fri Mar 11 03:09:55.831036 2022] [ssl:error] [pid 30732:tid 140507162339072] [client 3.208.15.15:33716] AH02042: rejecting client initiated renegotiation
MySql 日志中没有错误。
我现在能做什么？有一些命令或日志需要检查吗？