我有一个大问题！自从 07-30 从 Linux 服务器进行最后一次更新以来，我的服务器每晚都会自行重启！！
root@#########:~# last -x reboot
reboot system boot 5.4.0-122-generi Wed Aug 3 23:53 still running
reboot system boot 5.4.0-122-generi Wed Aug 3 23:24 still running
reboot system boot 5.4.0-122-generi Tue Aug 2 23:50 still running
reboot system boot 5.4.0-122-generi Tue Aug 2 23:22 still running
reboot system boot 5.4.0-122-generi Tue Aug 2 10:35 still running
reboot system boot 5.4.0-122-generi Mon Aug 1 23:51 still running
reboot system boot 5.4.0-122-generi Mon Aug 1 23:49 still running
reboot system boot 5.4.0-122-generi Mon Aug 1 23:23 still running
reboot system boot 5.4.0-122-generi Sun Jul 31 23:48 still running
reboot system boot 5.4.0-122-generi Sun Jul 31 23:23 still running
reboot system boot 5.4.0-122-generi Sat Jul 30 23:46 still running
reboot system boot 5.4.0-122-generi Sat Jul 30 23:22 still running
reboot system boot 5.4.0-122-generi Sat Jul 30 20:45 still running
每次都是在午夜之前！我的日志系统日志里充满了这样的条目……
Aug 3 23:49:19 h2632317 kernel: [ 1502.960356] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=120.76.140.189 DST=81.169.182.188 LEN=40 TOS=0x00 PREC=0x00 TTL=239 ID=56787 PROTO=TCP SPT=51128 DPT=7222 WINDOW=1024 RES=0x00 SYN URGP=0
Aug 3 23:49:38 h2632317 kernel: [ 1522.308959] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=85.215.255.5 DST=81.169.182.188 LEN=60 TOS=0x00 PREC=0x00 TTL=58 ID=17834 DF PROTO=TCP SPT=42789 DPT=25 WINDOW=24000 RES=0x00 SYN URGP=0
Aug 3 23:49:52 h2632317 kernel: [ 1535.755524] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=223.71.167.165 DST=81.169.182.188 LEN=64 TOS=0x00 PREC=0x00 TTL=113 ID=10237 PROTO=UDP SPT=23616 DPT=6000 LEN=44
Aug 3 23:49:56 h2632317 kernel: [ 1539.878679] {2}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1
Aug 3 23:49:56 h2632317 kernel: [ 1539.878683] {2}[Hardware Error]: It has been corrected by h/w and requires no further action
Aug 3 23:49:56 h2632317 kernel: [ 1539.878685] {2}[Hardware Error]: event severity: corrected
Aug 3 23:49:56 h2632317 kernel: [ 1539.878687] {2}[Hardware Error]: Error 0, type: corrected
Aug 3 23:49:56 h2632317 kernel: [ 1539.878689] {2}[Hardware Error]: fru_text: CorrectedErr
Aug 3 23:49:56 h2632317 kernel: [ 1539.878692] {2}[Hardware Error]: section_type: memory error
Aug 3 23:49:56 h2632317 kernel: [ 1539.878695] {2}[Hardware Error]: node: 0 device: 3
Aug 3 23:49:56 h2632317 kernel: [ 1539.878697] {2}[Hardware Error]: error_type: 2, single-bit ECC
Aug 3 23:50:29 h2632317 kernel: [ 1572.766854] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=194.26.29.152 DST=81.169.182.188 LEN=40 TOS=0x00 PREC=0x00 TTL=245 ID=43707 PROTO=TCP SPT=45358 DPT=4404 WINDOW=1024 RES=0x00 SYN URGP=0
Aug 3 23:50:31 h2632317 kernel: [ 1574.812040] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=78.188.226.9 DST=81.169.182.188 LEN=44 TOS=0x00 PREC=0x00 TTL=51 ID=13357 PROTO=TCP SPT=40647 DPT=23 WINDOW=34271 RES=0x00 SYN URGP=0
Aug 3 23:50:51 h2632317 kernel: [ 1594.803119] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=31.43.191.143 DST=81.169.182.188 LEN=40 TOS=0x00 PREC=0x00 TTL=249 ID=659 PROTO=TCP SPT=49618 DPT=8583 WINDOW=1024 RES=0x00 SYN URGP=0
Aug 3 23:51:25 h2632317 kernel: [ 1628.851786] [UFW BLOCK] IN=eno1 OUT= MAC=0c:c4:7a:7f:f3:62:00:25:84:7b:bc:00:08:00 SRC=45.61.184.118 DST=81.169.182.188 LEN=44 TOS=0x00 PREC=0x00 TTL=238 ID=54321 PROTO=TCP SPT=52549 DPT=23 WINDOW=65535 RES=0x00 SYN URGP=0
Aug 3 23:54:04 h2632317 systemd-modules-load[549]: Inserted module 'msr'
Aug 3 23:54:04 h2632317 systemd-modules-load[549]: Inserted module 'ipmi_devintf'
Aug 3 23:54:04 h2632317 systemd[1]: Mounted Huge Pages File System.
Aug 3 23:54:04 h2632317 systemd[1]: Mounted POSIX Message Queue File System.
Aug 3 23:54:04 h2632317 systemd[1]: Mounted Kernel Debug File System.
Aug 3 23:54:04 h2632317 systemd[1]: Mounted Kernel Trace File System.
Aug 3 23:54:04 h2632317 systemd[1]: Finished Set the console keyboard layout.
Aug 3 23:54:04 h2632317 systemd[1]: Finished Create list of static device nodes for the current kernel.
Aug 3 23:54:04 h2632317 systemd[1]: Finished Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling.
Aug 3 23:54:04 h2632317 systemd[1]: Finished Load Kernel Modules.
Aug 3 23:54:04 h2632317 systemd[1]: Finished Remount Root and Kernel File Systems.
Aug 3 23:54:04 h2632317 systemd[1]: Mounting FUSE Control File System...
Aug 3 23:54:04 h2632317 systemd[1]: Mounting Kernel Configuration File System...
这是输出systemctl list-timers：
root@h2632317:~# systemctl list-timers
NEXT LEFT LAST PASSED UNIT ACTIVATES
Thu 2022-08-04 20:02:17 CEST 43min left Thu 2022-08-04 13:33:26 CEST 5h 45min ago ua-timer.timer ua-timer.service
Thu 2022-08-04 20:15:36 CEST 57min left Wed 2022-08-03 11:59:28 CEST 1 day 7h ago mdmonitor-oneshot.timer mdmonitor-oneshot.service
Thu 2022-08-04 20:17:00 CEST 58min left Thu 2022-08-04 09:34:02 CEST 9h ago snap.certbot.renew.timer snap.certbot.renew.service
Fri 2022-08-05 00:00:00 CEST 4h 41min left Thu 2022-08-04 00:00:01 CEST 19h ago logrotate.timer logrotate.service
Fri 2022-08-05 00:08:36 CEST 4h 50min left Thu 2022-08-04 00:08:36 CEST 19h ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service
Fri 2022-08-05 04:13:10 CEST 8h left Thu 2022-08-04 17:36:04 CEST 1h 42min ago motd-news.timer motd-news.service
Fri 2022-08-05 04:36:19 CEST 9h left Thu 2022-08-04 11:34:13 CEST 7h ago apt-daily.timer apt-daily.service
Fri 2022-08-05 05:14:08 CEST 9h left Thu 2022-08-04 10:49:36 CEST 8h ago fwupd-refresh.timer fwupd-refresh.service
Fri 2022-08-05 06:58:40 CEST 11h left Thu 2022-08-04 06:25:54 CEST 12h ago apt-daily-upgrade.timer apt-daily-upgrade.service
Fri 2022-08-05 09:39:16 CEST 14h left Thu 2022-08-04 03:05:21 CEST 16h ago mdcheck_continue.timer mdcheck_continue.service
Sun 2022-08-07 03:10:36 CEST 2 days left Sun 2022-07-31 03:10:59 CEST 4 days ago e2scrub_all.timer e2scrub_all.service
Sun 2022-08-07 16:55:20 CEST 2 days left Sun 2022-07-03 05:26:09 CEST 1 months 2 days ago mdcheck_start.timer mdcheck_start.service
Mon 2022-08-08 00:00:00 CEST 3 days left Mon 2022-08-01 00:00:01 CEST 3 days ago fstrim.timer fstrim.service
Mon 2022-08-08 00:00:00 CEST 3 days left Wed 2022-08-03 00:00:01 CEST 1 day 19h ago man-db.timer man-db.service
**我在 Apache 错误日志中发现了这个：** [2022 年 8 月 3 日星期三 23：26：37.959302] [mpm_prefork：notice] [pid 10510] AH00163：Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1f 已配置 - 恢复正常操作 [2022 年 8 月 3 日星期三 23：26：37.986934] [core：notice] [pid 10510] AH00094：命令行：'/usr/sbin/apache2' [2022 年 8 月 3 日星期三 23：55：57.568415] [mpm_prefork：notice] [pid 10495] AH00163：Apache/2.4.41 (Ubuntu) OpenSSL/1.1.1f 已配置——恢复正常操作 [2022 年 8 月 3 日星期三 23：55：57.596962] [core：notice] [pid 10495] AH00094：命令行：'/usr/sbin/apache2' [2022 年 8 月 4 日星期四 00：00：11.143900] [mpm_prefork：notice] [pid 10495] AH00171：请求优雅重启，正在重启