Sửa lỗi “System failure exception executing command” trên Zimbra mail

[root@webmail ~]# su zimbra
[zimbra@webmail ~]$ cd && zmsshkeygen

Generating public/private rsa key pair.
Your identification has been saved in /opt/zimbra/.ssh/zimbra_identity.
Your public key has been saved in /opt/zimbra/.ssh/zimbra_identity.pub.
The key fingerprint is:
SHA256:yolGi/6hcCcUKDqihNx8yjh0p6HCca2rxi6E73t8IA8 webmail.it.info.vn
The key's randomart image is:
+---[RSA 2048]----+
|                 |
| .               |
|o .              |
|= o..            |
|*=.*.+  S        |
|B+EoO+ o         |
|**+X*.+          |
|o*o==..          |
|++*=..           |
+----[SHA256]-----+

[zimbra@webmail ~]$ zmupdateauthkeys

Updating keys for webmail.it.info.vn
Fetching key for webmail.it.info.vn
Updating keys for webmail.it.info.vn
Updating /opt/zimbra/.ssh/authorized_keys

[zimbra@webmail ~]$ zmprov ms webmail.it.info.vn zimbraRemoteManagementPort 2022

[zimbra@webmail ~]$ exit
exit
[root@webmail ~]# vi /etc/ssh/sshd_config

#       $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options override the
# default value.

# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
Port 2022
AllowUsers root admin zimbra      # Thêm dòng này vào file.
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
:wq

[root@webmail ~]# systemctl restart sshd