sshd啟動失敗,一直重啟

sshd出現了週期性連不上的情況,檢視日誌如下:

/var/log/secure:

sshd[3170]: server listening on 0.0.0.0 port 22.

sshd[3170]: received signal 15; terminating.

/var/log/messages:

systemd: sshd.service holdoff time over, scheduling restart.

systemd: starting openssh server daemon...
systemd: sshd.service start operation timed out. terminating.
systemd: failed to start openssh server daemon.
systemd: unit sshd.service entered failed state.
systemd: sshd.service failed.
systemd: sshd.service holdoff time over, scheduling restart.
systemd: starting openssh server daemon...
systemd: sshd.service start operation timed out. terminating.
systemd: failed to start openssh server daemon.
systemd: unit sshd.service entered failed state.
systemd: sshd.service failed.
systemd: sshd.service holdoff time over, scheduling restart.
systemd: starting openssh server daemon...
systemd: sshd.service start operation timed out. terminating.
systemd: failed to start openssh server daemon.
systemd: unit sshd.service entered failed state.
systemd: sshd.service failed.

journalctl -xe:

sshd.service start operation timed out. terminating.

sshd[8425]: received signal 15; terminating.
systemd[1]: failed to start openssh server daemon.
-- subject: unit sshd.service has failed
-- defined-by: systemd
-- support: 
-- -- unit sshd.service has failed.
-- -- the result is failed.
systemd[1]: unit sshd.service entered failed state.
systemd[1]: sshd.service failed.
polkitd[457]: unregistered authentication agent for unix-process:8419:67059806 (system bus name :1.2658, object path /org/freedesktop/policykit1/authenticationagent, locale en_us.utf-8) (disconnected from bus)

以上就是報錯資訊,完全找不到原因在**, sshd -t 也沒有任何輸出

無奈只能選擇重灌opendssh

yum

remove openssh
yuminstall openssh openssh-server openssh-clients
service sshd start
(systemctl start sshd)

重灌之後就好了,沒有再出現程序被殺死的情況

sshd啟動失敗

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