腾讯云的学生机 用的centos 安装了lamp
刚开始装好wordpress时，修改过一次 固定连接，但是改完之后除了主页，其他页面均为404错误，发现只要在前面加上index.php就正常，百度之后开启了rewrite，成功解决
后面买了域名后，把wordpress目录中的index.php 和.htaccess复制到了html目录中，修改了index.php对应的目录
然后在wordpress后台把站点地址改为域名，wordpress地址改为了域名/wordpress ，再次保存固定链接的设置，显示固定链接结构已更新，我查看了.htaccess的确有了改动
重启了一下服务器，使用域名访问主页，wordpress后台都能正常打开，但是其他的文章，页面都是404错误
这种情况要怎么解决

另外问一下 mysql几天就会崩溃一次，感觉应该是内存问题，学生机1g内存，平时内存占用都在八百m左右
麻烦帮我看下错误日志
170112 17:05:41 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
170112 17:05:42 mysqld_safe Logging to '/var/log/mysqld.log'.
170112 17:05:42 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
2017-01-12 17:05:42 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-01-12 17:05:42 0 [Note] /usr/sbin/mysqld (mysqld 5.6.35) starting as process 10005 ...
2017-01-12 17:05:42 10005 [Note] Plugin 'FEDERATED' is disabled.
2017-01-12 17:05:42 10005 [Note] InnoDB: Using atomics to ref count buffer pool pages
2017-01-12 17:05:42 10005 [Note] InnoDB: The InnoDB memory heap is disabled
2017-01-12 17:05:42 10005 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-01-12 17:05:42 10005 [Note] InnoDB: Memory barrier is not used
2017-01-12 17:05:42 10005 [Note] InnoDB: Compressed tables use zlib 1.2.3
2017-01-12 17:05:42 10005 [Note] InnoDB: Using Linux native AIO
2017-01-12 17:05:42 10005 [Note] InnoDB: Using CPU crc32 instructions
2017-01-12 17:05:42 10005 [Note] InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
2017-01-12 17:05:42 10005 [ERROR] InnoDB: Cannot allocate memory for the buffer pool
2017-01-12 17:05:42 10005 [ERROR] Plugin 'InnoDB' init function returned error.
2017-01-12 17:05:42 10005 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-01-12 17:05:42 10005 [ERROR] Unknown/unsupported storage engine: InnoDB
2017-01-12 17:05:42 10005 [ERROR] Aborting
2017-01-12 17:05:42 10005 [Note] Binlog end
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'partition'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_METRICS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMPMEM'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_CMP'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_LOCKS'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'INNODB_TRX'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'BLACKHOLE'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'ARCHIVE'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'MRG_MYISAM'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'MyISAM'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'MEMORY'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'CSV'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'sha256_password'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'mysql_old_password'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'mysql_native_password'
2017-01-12 17:05:42 10005 [Note] Shutting down plugin 'binlog'
2017-01-12 17:05:42 10005 [Note] /usr/sbin/mysqld: Shutdown complete

突然发现如果把固定链接改为数字就可以了
这样所有页面都是正常的

我的主机很稳定, 换 mariadb 吧, 可以参考我的wordpress维护笔记:
https://dshowto.com/archives/category/blog_maintenance

后面加上.html

你后缀改回原来的就可以了

确定伪静态设置好了吗

新手还是安装个管理面板好

PHP版本调到最高试试！