执行 yum 更新后，守护进程 SSHD 不再启动
Jul 18 19:42:50 Updated: glibc-common-2.17-157.el7_3.5.x86_64
Jul 18 19:42:52 Updated: glibc-2.17-157.el7_3.5.x86_64
Jul 18 19:42:53 Updated: glibc-headers-2.17-157.el7_3.5.x86_64
Jul 18 19:42:53 Updated: glibc-devel-2.17-157.el7_3.5.x86_64
Jul 18 19:42:53 Updated: epel-release-7-10.noarch
Jul 18 19:42:56 Updated: phpMyAdmin-4.4.15.10-2.el7.noarch
这是 systemctl status httpd 的结果
[root@goautodial-7 ~]# systemctl status sshd
● sshd.service
Loaded: not-found (Reason: No such file or directory)
Active: failed (Result: exit-code) since Sat 2017-07-22 15:51:13 CEST; 20min ago
Main PID: 2939 (code=exited, status=255)
CGroup: /system.slice/sshd.service
├─1125 sshd: root@pts/8
├─2469 -bash
└─5649 systemctl status sshd
Jul 22 15:49:43 goautodial-7 sshd[2939]: Server listening on 0.0.0.0 port 22.
Jul 22 15:49:43 goautodial-7 sshd[2939]: error: Bind to port 22 on :: failed: Address already in use.
Jul 22 15:51:13 goautodial-7 systemd[1]: sshd.service start operation timed out. Terminating.
Jul 22 15:51:13 goautodial-7 sshd[2939]: Received signal 15; terminating.
Jul 22 15:51:13 goautodial-7 systemd[1]: sshd.service: main process exited, code=exited, status=255/n/a
Jul 22 15:51:13 goautodial-7 systemd[1]: Failed to start OpenSSH server daemon.
Jul 22 15:51:13 goautodial-7 systemd[1]: Unit sshd.service entered failed state.
Jul 22 15:51:13 goautodial-7 systemd[1]: sshd.service failed.
Jul 22 16:07:01 goautodial-7 yum[5029]: Erased: openssh-server-6.6.1p1-35.el7_3.x86_64
Jul 22 16:07:26 goautodial-7 yum[5124]: openssh-server-6.6.1p1-35.el7_3.x86_64: 100
我也尝试删除并重新安装 openssh-server：
Installing : openssh-server-6.6.1p1-35.el7_3.x86_64 1/1
Error unpacking rpm package openssh-server-6.6.1p1-35.el7_3.x86_64
error: unpacking of archive failed on file /usr/sbin/sshd: cpio: rename
Verifying : openssh-server-6.6.1p1-35.el7_3.x86_64 1/1
Failed:
openssh-server.x86_64 0:6.6.1p1-35.el7_3
我几乎确信没有其他进程正在使用端口 22
[root@goautodial-7 ~]# ss -p -l -t
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 50 *:mysql *:* users:(("mysqld",pid=930,fd=14))
LISTEN 0 10 *:5038 *:* users:(("asterisk",pid=1548,fd=6))
LISTEN 0 2 *:sieve-filter *:* users:(("asterisk",pid=1548,fd=11))
LISTEN 0 100 127.0.0.1:smtp *:* users:(("master",pid=978,fd=13))
LISTEN 0 128 *:4577 *:* users:(("FastAGI_log.pl",pid=2454,fd=3),("FastAGI_log.pl",pid=2453,fd=3),("FastAGI_log.pl",pid=2452,fd=3),("FastAGI_log.pl",pid=2451,fd=3),("FastAGI_log.pl",pid=2450,fd=3),("FastAGI_log.pl",pid=2419,fd=3))
LISTEN 0 20 127.0.0.1:borland-dsj *:* users:(("goautodiald.pl",pid=2396,fd=3))
LISTEN 0 128 :::http :::* users:(("httpd",pid=4261,fd=4),("httpd",pid=824,fd=4),("httpd",pid=821,fd=4),("httpd",pid=819,fd=4),("httpd",pid=818,fd=4),("httpd",pid=817,fd=4),("httpd",pid=473,fd=4))
LISTEN 0 100 ::1:smtp :::* users:(("master",pid=978,fd=14))
LISTEN 0 128 :::https :::* users:(("httpd",pid=4261,fd=6),("httpd",pid=824,fd=6),("httpd",pid=821,fd=6),("httpd",pid=819,fd=6),("httpd",pid=818,fd=6),("httpd",pid=817,fd=6),("httpd",pid=473,fd=6))
有人可以帮忙吗？