我在部署了几个实例的情况下使用Google云。
我试图解决服务器上的MySQL数据库的问题，我不能让MySQL启动，所以我诉诸重新启动实例。
我注意到，当它恢复时，外部IP地址似乎已经改变，所以我改变它从短暂到静态，因为实例用于托pipe一个网站。
我现在无法通过SSH连接到服务器 – 我在日志中得到这个：
Mar 4 17:24:09 puntcambridge-puntcambridge-ippn sshd[3419]: Invalid user faina from 184.173.54.130 Mar 4 17:24:09 puntcambridge-puntcambridge-ippn sshd[3419]: input_userauth_request: invalid user faina [preauth] Mar 4 17:24:10 puntcambridge-puntcambridge-ippn sshd[3419]: Received disconnect from 184.173.54.130: 11: Bye Bye [preauth] Mar 4 17:24:16 puntcambridge-puntcambridge-ippn sshd[3421]: Connection closed by 173.194.92.32 [preauth] Mar 4 17:24:29 puntcambridge-puntcambridge-ippn sshd[3423]: Connection closed by 173.194.92.35 [preauth] Mar 4 17:24:44 puntcambridge-puntcambridge-ippn sshd[3425]: Connection closed by 173.194.92.35 [preauth] Mar 4 17:24:47 puntcambridge-puntcambridge-ippn collectd[2527]: mysql plugin: Failed to connect to database <none> at server localhost: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) Mar 4 17:24:47 puntcambridge-puntcambridge-ippn collectd[2527]: read-function of plugin `mysql-wpdatabase' failed. Will suspend it for 960.000 seconds. Mar 4 17:25:08 puntcambridge-puntcambridge-ippn sshd[3436]: Connection closed by 173.194.92.34 [preauth] Mar 4 17:25:46 puntcambridge-puntcambridge-ippn sshd[3439]: Connection closed by 173.194.92.36 [preauth] Mar 4 17:25:47 puntcambridge-puntcambridge-ippn sshd[3440]: Connection closed by 173.194.92.33 [preauth] Mar 4 17:26:57 puntcambridge-puntcambridge-ippn sshd[3453]: Connection closed by 173.194.92.36 [preauth] Mar 4 17:27:09 puntcambridge-puntcambridge-ippn sshd[3464]: Connection closed by 173.194.92.32 [preauth] Mar 4 17:27:47 puntcambridge-puntcambridge-ippn sshd[3467]: Invalid user faina from 184.173.54.130 Mar 4 17:27:47 puntcambridge-puntcambridge-ippn sshd[3467]: input_userauth_request: invalid user faina [preauth] Mar 4 17:27:47 puntcambridge-puntcambridge-ippn sshd[3467]: Received disconnect from 184.173.54.130: 11: Bye Bye [preauth] Mar 4 17:29:10 puntcambridge-puntcambridge-ippn sshd[3479]: Connection closed by 173.194.92.35 [preauth] Mar 4 17:30:24 puntcambridge-puntcambridge-ippn sshd[3491]: Connection closed by 173.194.92.36 [preauth] Mar 4 17:31:24 puntcambridge-puntcambridge-ippn sshd[3503]: Invalid user faina from 184.173.54.130 Mar 4 17:31:24 puntcambridge-puntcambridge-ippn sshd[3503]: input_userauth_request: invalid user faina [preauth] Mar 4 17:31:24 puntcambridge-puntcambridge-ippn sshd[3503]: Received disconnect from 184.173.54.130: 11: Bye Bye [preauth] Mar 4 17:32:12 puntcambridge-puntcambridge-ippn sshd[3515]: Connection closed by 74.125.17.96 [preauth] Mar 4 17:32:21 puntcambridge-puntcambridge-ippn sshd[3517]: Connection closed by 74.125.73.36 [preauth] Mar 4 17:32:23 puntcambridge-puntcambridge-ippn sshd[3519]: Connection closed by 74.125.73.100 [preauth] Mar 4 17:32:35 puntcambridge-puntcambridge-ippn sshd[3521]: Connection closed by 74.125.17.33 [preauth] Mar 4 17:32:45 puntcambridge-puntcambridge-ippn sshd[3532]: Connection closed by 74.125.73.99 [preauth] Mar 4 17:32:58 puntcambridge-puntcambridge-ippn sshd[3535]: Connection closed by 74.125.73.98 [preauth] Mar 4 17:33:12 puntcambridge-puntcambridge-ippn sshd[3537]: Connection closed by 74.125.47.161 [preauth] Mar 4 17:33:55 puntcambridge-puntcambridge-ippn sshd[3548]: Connection closed by 74.125.73.163 [preauth] Mar 4 17:34:02 puntcambridge-puntcambridge-ippn sshd[3551]: Connection closed by 74.125.17.32 [preauth] Mar 4 17:34:10 puntcambridge-puntcambridge-ippn sshd[3553]: Connection closed by 74.125.17.99 [preauth] Mar 4 17:34:19 puntcambridge-puntcambridge-ippn sshd[3555]: Connection closed by 74.125.73.33 [preauth] Mar 4 17:34:31 puntcambridge-puntcambridge-ippn sshd[3557]: Connection closed by 74.125.73.98 [preauth] SSH客户端保持超时。 我在这里有一点深刻，不知道从哪里开始解决这个问题，所以任何正确的方向指针将非常感激。
乐于提供任何额外的信息将有所帮助。
谢谢，
社区wiki文章：
原来的海报find的解决scheme是重新创build一个新的用户，以便重新login到他的MySQL服务器。 有可能在恢复实例时，已经存储了原始用户凭证的已更改集合并导致错误。