mount error(112): Host is down
Got the following error when trying to mount a CIFS file on RHEL 6.5:
[root@tama etc]# mount -t cifs --verbose -o username=goldengate_DBA //lacsqltzgprd4/GoldenGate /mnt/GoldenGate
Password:
mount.cifs kernel mount options: ip=10.50.243.13,unc=\lacsqltzgprd4\GoldenGate,,ver=1,user=goldengate_DBA,pass=********
mount error(112): Host is down
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
It has been working fine until now. Not sure if it's a coincidence, but the problem started after we did the Kerberos password change over the weekend.
Thanks.
Responses
Expert
1034 points
Hi,
try to enable more debug messages for the CIFS by running
echo 7 > /proc/fs/cifs/cifsFYI
to see additional error messages which may lead to to the cause.
When you are done, disable the debug by running
echo 0 > /proc/fs/cifs/cifsFYI
This could be due to a protocol mismatch. In 2017 Microsoft released patches and advised to disabled SMBv1 .
I also got the same error "Host is down.", but when you debug using (-d debuglevel) as following you will find the root cause:
smbclient -L <server_name> -U <username> -d 256
protocol negotiation failed: NT_STATUS_CONNECTION_RESET
To overcome this use mount or smbclient with (-m maxprotocol)a protocol specified.
smbclient -L <server_name> -U <username> -m SMB2
or for mount: add vers=2.0 in the /etc/fstab
mount -t cifs -o vers=2.0 //<server_name>/<share> /<mountpoint>
I got this message yesterday Microsoft update windows - disabled SMBv1 - got host is down error - Opened case with redhat - They said that if you are running RHEL 4,5,6 - you can only use SMBV1 protocol - You would need to upgrade to RHEL7 to use SMBv2 or 3 https://access.redhat.com/solutions/1178753
I am using Red Hat Enterprise Linux Server release 7.1 (Maipo) but still the same error I am getting mount error(112): Host is down Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
I am using the same in rhel6, but the output is showing unrecognised protocol error. Tried with SMB2.1, 2, 3 version.
smbclient -L 192.xx.xx.xx -U username -m SMB2
Unrecognised protocol level SMB2
enter the user password;