sshd过程无效

Question

我有一个AIX服务器，它突然停止为SSH连接提供服务。当我试图通过startsrc -s sshd启动服务时，它说：

0513-059 The sshd Subsystem has been started. Subsystem PID is 258300.

但是，在发出命令之后，服务状态显示为无效：

 sshd             ssh                           inoperative

init脚本位置很好，并抛出与上面相同的结果。

编辑:下面是odmget命令输出：

SRCsubsys:
    subsysname = "sshd"
    synonym = ""
    cmdargs = "-D"
    path = "/usr/sbin/sshd"
    uid = 0
    auditid = 0
    standin = "/dev/console"
    standout = "/dev/console"
    standerr = "/dev/console"
    action = 1
    multi = 0
    contact = 2
    svrkey = 0
    svrmtype = 0
    priority = 20
    signorm = 15
    sigforce = 9
    display = 1
    waittime = 20
    grpname = "ssh"

当尝试手动启动服务时，会出现以下错误：

exec(): 0509-036 Cannot load program /usr/sbin/sshd because of the following errors:
0509-150   Dependent module libz.a(libz.so.1) could not be loaded.
0509-022 Cannot load module libz.a(libz.so.1).
0509-026 System error: A file or directory in the path name does not exist.

任何帮助都将不胜感激。

Answer 1

看起来您的系统中缺少libz.so.1。

Answer 2

您可以尝试以下方法：

1)在LogLevel DEBUG3中启用/etc/ssh/sshd_config

2)将字符串security.debug /var/log/syslog.security.debug rotate time 1d files 4添加到/etc/syslog.conf中

3)然后

# touch /var/log/syslog.security.debug
# stopsrc -s syslogd
# startsrc -s syslogd
# stopsrc -s sshd
# startsrc -s sshd

Answer 3

问题是，在libz.a中没有/etc/opt/freeware/lib。

使用该命令并查找libz：

find / -name 'libz*' -exec ls -l {} \;  2>/dev/null

之后，将库复制到/opt/freeware/lib/。示例：

cp /opt/freeware/lib/saveoldrpm/oldrpm/lib/libz.a /opt/freeware/lib
startsrc -s sshd