请帮助。在2019-01-24 06:37:10 UTC突然我开始在服务器上收到以下错误：
SQLSTATE[HY000] [1045] Access denied for user 'forge'@'localhost' (using password: YES)
我无法访问mysql。我并没有改变任何事情，所以我不知道发生了什么。当我浏览系统日志时，确实看到了一些mysql活动：
Jan 24 06:36:07 whispering-hurricane systemd[1]: Starting Daily apt upgrade and clean activities...
Jan 24 06:36:24 whispering-hurricane kernel: [1767450.357697] [UFW BLOCK] IN=eth0 OUT= MAC=32:f4:a6:e9:03:29:f0:4b:3a:4e:50:30:08:00 SRC=85.10.193.56 DST=206.189.227.234 LEN=60 TOS=0x00 PREC=0x00 TTL=56 ID=37186 DF PROTO=TCP SPT=57178 DPT=22123 WINDOW=29200 RES=0x00 SYN URGP=0
Jan 24 06:36:32 whispering-hurricane systemd[1]: Reloading.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Reloading.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Stopped Daily apt upgrade and clean activities.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Stopping Daily apt upgrade and clean activities.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Started Daily apt upgrade and clean activities.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Stopped Daily apt download activities.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Stopping Daily apt download activities.
Jan 24 06:36:33 whispering-hurricane systemd[1]: Started Daily apt download activities.
Jan 24 06:36:38 whispering-hurricane systemd[1]: Reloading.
Jan 24 06:36:38 whispering-hurricane systemd[1]: Stopping MySQL Community Server...
Jan 24 06:36:42 whispering-hurricane systemd[1]: Stopped MySQL Community Server.
Jan 24 06:36:42 whispering-hurricane systemd[1]: Reloading.
Jan 24 06:36:46 whispering-hurricane kernel: [1767472.035497] audit: type=1400 audit(1548311806.292:39): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/sbin/mysqld" pid=27468 comm="apparmor_parser"
Jan 24 06:36:46 whispering-hurricane kernel: [1767472.069261] audit: type=1400 audit(1548311806.324:40): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=27486 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 06:36:46 whispering-hurricane kernel: [1767472.132572] audit: type=1400 audit(1548311806.388:41): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=27501 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 06:36:50 whispering-hurricane kernel: [1767476.078756] audit: type=1400 audit(1548311810.336:42): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=27552 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 06:36:53 whispering-hurricane kernel: [1767478.885369] audit: type=1400 audit(1548311813.140:43): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/sbin/mysqld" pid=27601 comm="apparmor_parser"
Jan 24 06:36:53 whispering-hurricane systemd[1]: message repeated 5 times: [ Reloading.]
Jan 24 06:36:53 whispering-hurricane systemd[1]: Starting MySQL Community Server...
Jan 24 06:36:53 whispering-hurricane kernel: [1767479.454427] audit: type=1400 audit(1548311813.708:44): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=27677 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 06:36:53 whispering-hurricane kernel: [1767479.499368] audit: type=1400 audit(1548311813.756:45): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=27682 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=113 ouid=0
Jan 24 06:36:54 whispering-hurricane systemd[1]: Started MySQL Community Server.
有人可以帮助我了解该系统日志中是否是引起此问题的原因吗？我该如何解决？这是我们的生产服务器，我无法访问数据库。我们的应用程序也不能。不好。
我看到这些升级是在那时自动发生的。这些一定是导致问题的原因：
Start-Date: 2019-01-24 06:36:21
Commandline: /usr/bin/unattended-upgrade
Upgrade: mysql-client-5.7:amd64 (5.7.24-0ubuntu0.18.04.1, 5.7.25-0ubuntu0.18.04.2)
End-Date: 2019-01-24 06:36:22
Start-Date: 2019-01-24 06:36:25
Commandline: /usr/bin/unattended-upgrade
Upgrade: mysql-client-core-5.7:amd64 (5.7.24-0ubuntu0.18.04.1, 5.7.25-0ubuntu0.18.04.2)
End-Date: 2019-01-24 06:36:26
Start-Date: 2019-01-24 06:36:38
Commandline: /usr/bin/unattended-upgrade
Upgrade: mysql-server-5.7:amd64 (5.7.24-0ubuntu0.18.04.1, 5.7.25-0ubuntu0.18.04.2), mysql-server-core-5.7:amd64 (5.7.24-0ubuntu0.18.04.1, 5.7.25-0ubuntu0.18.04.2)
End-Date: 2019-01-24 06:36:54
我按照注释之一运行了这些命令：
ufw status
ufw allow 3306
这似乎没有帮助。这是ufw status的当前输出：
Status: active
To Action From
-- ------ ----
22 ALLOW Anywhere
80 ALLOW Anywhere
443 ALLOW Anywhere
3306 ALLOW Anywhere
22 (v6) ALLOW Anywhere (v6)
80 (v6) ALLOW Anywhere (v6)
443 (v6) ALLOW Anywhere (v6)
3306 (v6) ALLOW Anywhere (v6)
当我在正在运行的开发服务器上重新启动mysql时，会在syslog中得到以下输出：
Jan 24 13:08:16 smooth-star systemd[1]: Stopping MySQL Community Server...
Jan 24 13:08:17 smooth-star systemd[1]: Stopped MySQL Community Server.
Jan 24 13:08:17 smooth-star systemd[1]: Starting MySQL Community Server...
Jan 24 13:08:17 smooth-star kernel: [4733737.407768] audit: type=1400 audit(1548335297.764:31): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=28433 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 13:08:17 smooth-star kernel: [4733737.456162] audit: type=1400 audit(1548335297.812:32): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=28438 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=113 ouid=0
Jan 24 13:08:18 smooth-star systemd[1]: Started MySQL Community Server.
在有问题的生产服务器上，重新启动mysql时出现此问题：
Jan 24 13:10:40 whispering-hurricane systemd[1]: Stopping MySQL Community Server...
Jan 24 13:10:41 whispering-hurricane systemd[1]: Stopped MySQL Community Server.
Jan 24 13:10:41 whispering-hurricane systemd[1]: Starting MySQL Community Server...
Jan 24 13:10:41 whispering-hurricane kernel: [ 8114.162705] kauditd_printk_skb: 6 callbacks suppressed
Jan 24 13:10:41 whispering-hurricane kernel: [ 8114.162707] audit: type=1400 audit(1548335441.898:130): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=6841 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Jan 24 13:10:41 whispering-hurricane kernel: [ 8114.186619] audit: type=1400 audit(1548335441.922:131): apparmor="DENIED" operation="capable" profile="/usr/sbin/mysqld" pid=6841 comm="mysqld" capability=2 capname="dac_read_search"
Jan 24 13:10:41 whispering-hurricane kernel: [ 8114.217354] audit: type=1400 audit(1548335441.954:132): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=6850 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=113 ouid=0
Jan 24 13:10:42 whispering-hurricane systemd[1]: Started MySQL Community Server.
这里有什么引起问题吗？
答案 0 :(得分：0)
所以，只是为了确认：
您使用php artisan key:generate生成了密钥吗？
此密钥在.env密钥下的APP_KEY文件中吗？
您的config/app.php有密钥'key' => env('APP_KEY')？
如果所有这些都到位，那么您应该是对的。如有任何错误请回来。
答案 1 :(得分：0)
无法访问数据库的原因可能是由于UFW不允许在您的mysql端口上进行连接，我认为是3306。您可以SSH进入伪造服务器并输入：
ufw status
ufw allow 3306
您可能需要sudo permissions。这种想法的原因是您的日志中的这一行：
...
Jan 24 06:36:24 whispering-hurricane kernel: [1767450.357697] [UFW BLOCK] IN=eth0 OUT= MAC=32:f4:a6:e9:03:29:f0:4b:3a:4e:50:30:08:00 SRC=85.10.193.56 DST=206.189.227.234 LEN=60 TOS=0x00 PREC=0x00 TTL=56 ID=37186 DF PROTO=TCP SPT=57178 DPT=22123 WINDOW=29200 RES=0x00 SYN URGP=0
...