这开始发生在三周左右之前。我的网站内容没有改变，它只是一个使用MySQL作为后端的phpBB论坛。
一年多没有变化，但是最近，每两天左右，服务器刚关闭，根本无法访问，我必须通知我的服务提供商重新启动机器。
它似乎与我在日志中发现的这些SIGTERM错误有关。问题是我不知道如何解决这些问题或找到根本原因，因为我缺乏这方面的技能。
任何人都有什么想法会发生什么？
Apache / 2.2.3（CentOS）
20051115
Linux 2.6.18-028stab057.4＃1 SMP Fri Aug 1 10:47:59 MSD 2008 x86_64
从错误日志中： [Sun Nov 01 15:18:53 2009] [通知]抓住了SIGTERM，关闭了
不完全确定是什么导致了我的问题，但这听起来不是一件好事。
如果需要，我可以发布更多日志信息
[Sun Nov 01 05:07:17 2009] [notice] Digest: generating secret for digest authentication ... [Sun Nov 01 05:07:17 2009] [notice] Digest: done [Sun Nov 01 05:07:19 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads. [Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 05:07:19 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 05:07:19 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159) [Sun Nov 01 05:07:19 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!! [Sun Nov 01 05:07:19 2009] [warn] WARNING: Attempt to change ServerLimit ignored during restart [Sun Nov 01 05:07:19 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations [Sun Nov 01 15:16:11 2009] [error] [client 127.0.0.1] Invalid method in request get [Sun Nov 01 15:18:53 2009] [notice] caught SIGTERM, shutting down [Sun Nov 01 15:19:27 2009] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159) [Sun Nov 01 15:19:27 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!! [Sun Nov 01 15:19:27 2009] [notice] Digest: generating secret for digest authentication ... [Sun Nov 01 15:19:27 2009] [notice] Digest: done [Sun Nov 01 15:19:27 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads. [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Sun Nov 01 15:19:27 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159) [Sun Nov 01 15:19:27 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!! [Sun Nov 01 15:19:27 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations [Sun Nov 01 16:42:31 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 16:47:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 16:59:22 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 17:37:42 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 17:44:54 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 17:44:55 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 17:44:56 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 18:14:45 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 18:40:30 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 20:10:59 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 20:35:10 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 20:43:07 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 20:43:46 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 21:25:39 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 21:26:03 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 21:56:57 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:21:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:25:16 2009] [error] server reached MaxClients setting, consider raising the MaxClients setting [Sun Nov 01 22:25:17 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:25:18 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:25:20 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:25:21 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:25:22 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:46:47 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:52:56 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:56:07 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:56:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 22:56:58 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:00:41 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:09:59 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:23:49 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:27:14 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:36:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Sun Nov 01 23:54:06 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:12:44 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:12:50 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:13:23 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:39:06 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:52:50 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 00:53:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:13:38 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:13:39 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:13:40 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:23:01 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:43:47 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:45:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:46:27 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 01:47:25 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 02:23:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 02:25:37 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 02:25:38 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 02:52:29 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 02:52:51 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 03:49:29 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 03:49:48 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 04:35:33 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/README [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde2 [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde3 [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/horde-3.0.9 [Mon Nov 02 04:46:01 2009] [error] [client 66.96.201.63] File does not exist: /var/www/vhosts/default/htdocs/Horde [Mon Nov 02 04:46:02 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 05:01:06 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/README [Mon Nov 02 05:01:06 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde [Mon Nov 02 05:01:07 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde2 [Mon Nov 02 05:01:08 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde3 [Mon Nov 02 05:01:08 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/horde-3.0.9 [Mon Nov 02 05:01:09 2009] [error] [client 58.246.73.74] File does not exist: /var/www/vhosts/default/htdocs/Horde [Mon Nov 02 05:01:09 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 05:01:10 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 05:01:11 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/ [Mon Nov 02 09:17:58 2009] [notice] caught SIGTERM, shutting down [Mon Nov 02 09:18:58 2009] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159) [Mon Nov 02 09:18:58 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!! [Mon Nov 02 09:18:58 2009] [notice] Digest: generating secret for digest authentication ... [Mon Nov 02 09:18:58 2009] [notice] Digest: done [Mon Nov 02 09:18:58 2009] [notice] mod_python: Creating 4 session mutexes based on 10 max processes and 0 max threads. [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] RSA server certificate CommonName (CN) `plesk' does NOT match server name!? [Mon Nov 02 09:18:58 2009] [warn] Init: SSL server IP/port conflict: default-64-6-237-192:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:83) vs. webmail:443 (/etc/httpd/conf.d/zz010_psa_httpd.conf:159) [Mon Nov 02 09:18:58 2009] [warn] Init: You should not use name-based virtual hosts in conjunction with SSL!! [Mon Nov 02 09:18:58 2009] [notice] Apache/2.2.3 (CentOS) configured -- resuming normal operations [Mon Nov 02 09:32:34 2009] [error] [client ::1] Directory index forbidden by Options directive: /var/www/html/
答案 0 :(得分：17)
SIGTERM用于重启Apache（假设它在init中设置为自动重启）：http://httpd.apache.org/docs/2.2/stopping.html
您在日志中看到的条目几乎肯定存在，因为您的提供商为此目的使用了SIGTERM。如果它真的崩溃，甚至没有提供静态内容，那么这听起来像某种线程/连接耗尽问题。也许是一个持有联系的DoS？
绝对应该让您的提供商进行调查。
答案 1 :(得分：5)
我在L.A.M.P.关闭了神秘的SIGTERM。服务器，它被证明是自定义PHP模块中的错误，这是由不匹配的版本引起的。通过查看故障时的apache访问/错误日志找到了它。不要忘记打开错误登录。
答案 2 :(得分：3)
您是否曾要求您的提供商进行调查？我认为这不是专用服务器，
从表面上看，这似乎是一个安全例外，而且somone试图利用它/或者有一个进程在设定的时间运行导致这个，你能想到每2个服务器上运行的任何东西吗？天？记录工具？
SIGTERM是发送给进程请求终止的信号。 SIGTERM的符号常量在头文件signal.h中定义。使用符号信号名称是因为信号编号可能因平台而异，但在绝大多数系统中，SIGTERM信号为＃15。
答案 3 :(得分：0)
来自this page：
我发现了这个信息：
虽然mod_fastcgi进程管理器并不特别耐心（这里有改进的余地），并且因为它也必须关闭，所以将SIGTERM发送给它负责的所有FastCGI应用程序。 Apache将重新启动进程管理器，它将重新启动其托管应用程序（就像服务器刚刚启动一样）。 SIGTERM就是SIGTERM - 您的应用程序应该快速退出。
这对我来说意味着，如果数据库I / O或CGI脚本的某些其他部分未能及时响应（即数据量增长变慢），那mod_fastcgi就会杀死脚本。 .....是其他人如何解释这些文档或我错过了什么..
答案 4 :(得分：0)
这也可能很简单，例如未将Apache配置为在启动时自动启动。假设您使用的是类似Red Hat的系统，例如CentOS或Fedora，chkconfig –list命令将显示为每个运行级别设置的服务。您应该会看到类似
的行 httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
如果相反地一直说“关闭”，则可以使用chkconfig httpd on激活它。或者，您可以从面板中手动启动apache。
答案 5 :(得分：0)
尝试升级和安装新软件包
sudo apt-get update && sudo apt-get upgrade -y
答案 6 :(得分：-2)
尝试使用sudo a2dismod rewrite在ubuntu中禁用重写模块。这也许会阻止您的Apache服务器崩溃。