[SSH] use SSH keys for authentication to server with saved user and password
Use below command:
% ssh-copy-id -i ~/.ssh/mykey <user>@<host>Or
% ssh-copy-id -i ~/.ssh/id_rsa.pub <host>Archive for category: Ubuntu
[Ubuntu] Check harddisk health with smartctl, HDD S.M.A.R.T test
1. Install
sudo apt-get install smartmontools2. Verify HDD support S.M.A.R.T
sudo /sbin/sudo smartctl -i /dev/sdesmartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.3.10-1-pve] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Green
Device Model: WDC WD20EZRX-00D8PB0
Serial Number: WD-WMC4M0DF2257
LU WWN Device Id: 5 0014ee 6afbfdb12
Firmware Version: 80.00A80
User Capacity: 2,000,397,852,160 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Tue Mar 24 17:10:57 2020 +07
SMART support is: Available - device has SMART capability.
SMART support is: Enabled3. Test
sudo /sbin/smartctl -t <short|long|conveyance|select> -C /dev/sdesudo /sbin/smartctl -t long /dev/sdesmartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.3.10-1-pve] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 266 minutes for test to complete.
Test will complete after Tue Mar 24 21:27:39 2020 +07
Use smartctl -X to abort test.4. Verify result
sudo /sbin/smartctl -a /dev/sdeSMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 7757 -[Proxmox] Manage zpool degrade harddisk and clear degrade status
- Find degrade hard-disk
root@user-pve:/home/user# /usr/sbin/zpool status -v
pool: user-storage
state: DEGRADED
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://zfsonlinux.org/msg/ZFS-8000-9P
scan: scrub repaired 280K in 0 days 04:33:34 with 0 errors on Sun Jan 12 04:57:36 2020
config:
NAME STATE READ WRITE CKSUM
user-storage DEGRADED 0 0 0
raidz1-0 DEGRADED 0 0 0
sda ONLINE 0 0 0
sdb ONLINE 0 0 0
sdc ONLINE 0 0 0
sdd ONLINE 0 0 0
sde DEGRADED 0 0 74 too many errors
errors: No known data errors
root@user-pve:/home/user#- Check hard-disk status
- Reset degrade status
root@user-pve:/home/user# /usr/sbin/zpool clear user-storage sde
root@user-pve:/home/user# /usr/sbin/zpool status -v
pool: user-storage
state: ONLINE
scan: scrub in progress since Sun Jan 19 19:17:39 2020
10.7G scanned at 1.53G/s, 1.32M issued at 193K/s, 877G total
0B repaired, 0.00% done, no estimated completion time
config:
NAME STATE READ WRITE CKSUM
user-storage ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
sda ONLINE 0 0 0
sdb ONLINE 0 0 0
sdc ONLINE 0 0 0
sdd ONLINE 0 0 0
sde ONLINE 0 0 0
errors: No known data errors
root@user-pve:/home/user# apt update- Verify status in proxmox
[Fixed] Windows can’t access linux samba share.
Had to comment away the following in the config file:
user@ubuntu:~$ sudo vim /etc/samba/smb.confComment out “map to guest = bad user” line.
# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
# map to guest = bad userRestart samba service
user@ubuntu:~$ sudo /etc/init.d/smbd restartDone.