Difference between revisions of "User:Scott/02"

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{{db-g7}}
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'''Tech Support'''
 +
--------------------------------
 +
Home Page      [[user:scott]]
 +
Tech Support  [[user:scott/02]]
 +
Dir & Files    [[user:scott/03]]
 +
Network        [[user:scott/04]]
 +
Troubleshoot  [[user:scott/05]]
 +
Laptops        [[user:scott/06]]
 +
Resources      [[user:scott/07]]
 +
Notes          [[user:scott/08]]
 +
Open-SSH      [[user:scott/09]]
 +
A.T            [[user:scott/22]]
  
−
<br>
+
{{TOC limit|limit=1}}
 +
__TOC__
  
−
Delete This Page
+
<h5>PRINTME - /var/lib/freegeek-extras/printme</h5>
  
−
<br>
+
=Password=
 +
==Backup Password==
 +
*cp /etc/shadow /etc/shadow.bak - (hash of root + user)
 +
*cat /etc/passwd (UID + GID)
 +
 
 +
==Change Password==
 +
passwd [username]
 +
passwd –e [username] – (change on startup)
 +
 
 +
[[#top|top]]
 +
 
 +
=User Name (Add-Delete)=
 +
adduser [username]
 +
adduser [username] admin
 +
userdel [username]
 +
 
 +
=Updates & Fix Broken Packages=
 +
apt-get update
 +
apt-get dist-upgrade
 +
 
 +
apt-get install --fix-broken
 +
apt-get autoremove
 +
apt-get install ubuntu-desktop
 +
 
 +
apt-get purge xxx
 +
 
 +
[[#top|top]]
 +
 
 +
=File System Check=
 +
fdisk -l
 +
 
 +
fsck -fyv /dev/sda1 (f=force y=fix)
 +
 
 +
shutdown -rF now (reboot, forcing fsck on root filesystem)
 +
 
 +
=Mount & Un-Mount Devices=
 +
 
 +
df -h          (show boot partition)
 +
ls /media      (device mounted from GUI)
 +
cat /etc/fstab (partitions and devices that mount on start-up)
 +
 
 +
mount
 +
 
 +
mount /dev/sdb1 /mnt/xxx
 +
 
 +
umount /dev/sdb1 (sudo)
 +
 
 +
==FSTAB - Mount HDD==
 +
[http://www.youtube.com/watch?v=4G7B1Wmvz_0 mount HDD]
 +
 
 +
sudo mount to see what is mounted
 +
sudo mount -a to mount all entries in fstab
 +
 
 +
un-mount drive (close apps using drive first)
 +
 +
sudo mkdir /media/sjn8GigMount
 +
 +
sudo fdisk -l or Disk utility to get "Device Name" such as (/dev/sdc1)
 +
 
 +
gksudo gedit /etc/fstab
 +
 +
select Edit -> Preferences -> Editor
 +
create a backup copy before saving file
 +
 
 +
Example 1. old-school
 +
[device]    [mount point]    [file system]  [options]              [dump] [fsck order]
 +
/dev/sdb1  /mnt/sjn8GigMount  auto        rw.username.auto.exec.utf8  0        0
 +
 
 +
Example 2. new-school
 +
[device]              [mount point]    [file system]  [options]              [dump][fsck order]
 +
UUID=34C4DFF9C4DF8876  /mnt/sjn8GigMount  auto        rw.username.auto.exec.utf8  0        0
 +
 
 +
#File Systems [auto] [ext4] [jfs] [reiser4] [swap] [iso9660] [FAT 32] [NTFS]
 +
#Note [ntfs-3g] necessary for write access
 +
 
 +
Re-Start machine
 +
 
 +
==Mount - NTFS HDD(on tsbackup)==
 +
 
 +
sudo ntfs-config (open + and dbl clk on device)
 +
see - "Mounting_Disks.README" on Desktop
 +
 
 +
[[#top|top]]
 +
 
 +
=Badblocks=
 +
badblocks -nvs /dev/sda1
 +
 
 +
=Network Backup Procedures=
 +
[http://wiki.freegeek.org/index.php/Network_backup Network_backup_wiki.freegeek]
 +
 
 +
=Backup a Home Directory=
 +
*date format (e.g. 20121223 for Dec 23 2012)
 +
 
 +
==ssh into backup server==
 +
ssh tsbackup@tsbackup
 +
ls /var/tsbackup
 +
ssh -XC tsbackup@tsbackup (.fglan nautilus)
 +
ctrl-c (to back-out)
 +
 
 +
==ssh to tsbackup - nautalus==
 +
ssh://tsbackup@tsbackup
 +
 
 +
==rsync from customer box==
 +
sudo cp /etc/passwd /etc/shadow /etc/group /home/
 +
dpkg --get-selections > dpkg.out
 +
sudo mv dpkg.out /home/
 +
sudo tar -czf /home/etc.backup.tar.gz /etc/
 +
sudo rsync -avzh /home/ tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber] 2>rsync.log
 +
 
 +
less rsync.log (view error log)
 +
 
 +
<pre>Note: on the '''data recovery box'''
 +
      determine mount point of device to backup
 +
      use "fdisk l" or "Disk utility"
 +
      mount /mnt/sdb?
 +
 
 +
      add /mnt/sdb? in front of /home
 +
      this avoids the need to chroot.</pre>
 +
 
 +
 
 +
 
 +
[[#top|top]]
 +
 
 +
==rsync from tsData box==
 +
sudo cp /mnt/sdb?/etc/passwd /mnt/sdb?/etc/shadow /mnt/sdb?/etc/group /mnt/sdb?/home/
 +
dpkg --get-selections --admindir=/mnt/sdb?/var/lib/dpkg >dpkg.out
 +
sudo mv dpkg.out /mnt/sdb?/home/
 +
sudo tar -czf /mnt/sdb?/home/etc.backup.tar.gz /mnt/sdb?/etc/
 +
sudo rsync -avzh /mnt/sdb?/home/ tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber] 2>rsync.log
 +
 
 +
==Restore from Backup==
 +
sudo rsync -avzh  tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber]/ /home
 +
sudo dpkg --set-selections < /home/dpkg.out
 +
sudo apt-get -u dselect-upgrade
 +
 
 +
copy (user passwd) hash from original /etc/shadow
 +
 
 +
==Restore User Permissions==
 +
*Create a New User (oem or Bob or Mark) - with Admin. Privileges
 +
Change From: drwxr-xr-x 23 1001 1001 4096 2011-07-07 13:28 oem
 +
 +
Change To:  chown -R oem:oem /home/oem (recursively for all sub directories)
 +
 
 +
=File Permissions=
 +
chmod 774 dir-name (dir)  rwxrwxr--
 +
chmod 664 filename (files) rw-rw-r--
 +
 
 +
chmod ugo+rwx /dir/file
 +
chmod ugo-rwx /dir/file
 +
 
 +
[[#top|top]]
 +
 
 +
=Stress Test CPU and Chipset=
 +
*[http://wiki.freegeek.org/index.php/CPU_Temperature CPU Temperature]
 +
 
 +
stress --cpu 8 --io 4 --vm  2 --vm-bytes 128M  --timeout 4h
 +
 +
(add --hdd 2 to stress the hard drive as well, though this shouldn't be necessary)
 +
 
 +
==Temperature Test/Display==
 +
 
 +
while  [[ true ]] ; do uptime ; sensors ; sleep 30s; done | tee temp_load.log
 +
 +
Load lm sensor "utility to read temp/fan"
 +
-from software center
 +
 
 +
=Hardware & Resource Identification=
 +
 
 +
==lshw==
 +
sudo lshw (hardware config)
 +
 
 +
==CPU==
 +
cat /proc/cpuinfo or more /proc/cpuinfo
 +
 
 +
==Disk Usage==
 +
du -sh (-s disk usage)
 +
du -sh /home/bob/Downloads/ (disk usage for Downloads)
 +
 
 +
[[#top|top]]
 +
 
 +
==Available Memory==
 +
free –l (available memory)
 +
 
 +
cat /proc/meminfo
 +
 
 +
=Devices in Use=
 +
To see a list of devices currently in use
 +
cat /proc/devices
 +
 
 +
=AlsaMixer=
 +
alsamixer
 +
 
 +
=Printer Linux Foundation=
 +
http://www.linuxfoundation.org/
 +
Workgroups -> Open Printing -> Printers
 +
 
 +
==HPLIP==
 +
http://hplipopensource.com/hplip-web/downloads.html
 +
 
 +
[[#top|top]]
 +
 
 +
=WineHQ Database=
 +
http://www.winehq.org/
 +
 +
[http://appdb.winehq.org/objectManager.php?sClass=application&sTitle=Browse%20Applications&sOrderBy=appName&bAscending=true wineDB]
 +
 +
[http://www.winehq.org/download/ubuntu Download-Wine]
 +
 
 +
=Photorec=
 +
 
 +
=Burn DVD tsbackup=
 +
wodim dev=/dev/sr1 isodir/DiscSpan_15.iso (15 = disk #)
 +
;beep

Latest revision as of 17:12, 20 January 2012

Tech Support 

--------------------------------
Home Page      user:scott
Tech Support   user:scott/02
Dir & Files    user:scott/03
Network        user:scott/04
Troubleshoot   user:scott/05
Laptops        user:scott/06
Resources      user:scott/07
Notes          user:scott/08 
Open-SSH       user:scott/09
A.T            user:scott/22

Template:TOC limit

PRINTME - /var/lib/freegeek-extras/printme

Password

Backup Password

  • cp /etc/shadow /etc/shadow.bak - (hash of root + user)
  • cat /etc/passwd (UID + GID)

Change Password

passwd [username]
passwd –e [username] – (change on startup)

top

User Name (Add-Delete)

adduser [username]
adduser [username] admin
userdel [username]

Updates & Fix Broken Packages

apt-get update
apt-get dist-upgrade

apt-get install --fix-broken
apt-get autoremove
apt-get install ubuntu-desktop

apt-get purge xxx

top

File System Check

fdisk -l

fsck -fyv /dev/sda1 (f=force y=fix)

shutdown -rF now (reboot, forcing fsck on root filesystem)

Mount & Un-Mount Devices

df -h          (show boot partition)
ls /media      (device mounted from GUI)
cat /etc/fstab (partitions and devices that mount on start-up)

mount 

mount /dev/sdb1 /mnt/xxx

umount /dev/sdb1 (sudo)

FSTAB - Mount HDD

mount HDD

sudo mount to see what is mounted
sudo mount -a to mount all entries in fstab

un-mount drive (close apps using drive first)

sudo mkdir /media/sjn8GigMount

sudo fdisk -l or Disk utility to get "Device Name" such as (/dev/sdc1)

gksudo gedit /etc/fstab

select Edit -> Preferences -> Editor
create a backup copy before saving file

Example 1. old-school
[device]    [mount point]     [file system]  [options]      	         [dump] [fsck order]
/dev/sdb1   /mnt/sjn8GigMount   auto         rw.username.auto.exec.utf8   0        0

Example 2. new-school
[device]               [mount point]    [file system]  [options]              [dump][fsck order]
UUID=34C4DFF9C4DF8876  /mnt/sjn8GigMount   auto         rw.username.auto.exec.utf8   0        0

#File Systems [auto] [ext4] [jfs] [reiser4] [swap] [iso9660] [FAT 32] [NTFS]
#Note [ntfs-3g] necessary for write access

Re-Start machine

Mount - NTFS HDD(on tsbackup)

sudo ntfs-config (open + and dbl clk on device)
see - "Mounting_Disks.README" on Desktop

top

Badblocks

badblocks -nvs /dev/sda1

Network Backup Procedures

Network_backup_wiki.freegeek

Backup a Home Directory

  • date format (e.g. 20121223 for Dec 23 2012)

ssh into backup server

ssh tsbackup@tsbackup
ls /var/tsbackup
ssh -XC tsbackup@tsbackup (.fglan nautilus)
ctrl-c (to back-out)

ssh to tsbackup - nautalus

ssh://tsbackup@tsbackup

rsync from customer box

sudo cp /etc/passwd /etc/shadow /etc/group /home/
dpkg --get-selections > dpkg.out
sudo mv dpkg.out /home/
sudo tar -czf /home/etc.backup.tar.gz /etc/
sudo rsync -avzh /home/ tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber] 2>rsync.log

less rsync.log (view error log)

Note: on the '''data recovery box''' 
      determine mount point of device to backup
      use "fdisk l" or "Disk utility"
      mount /mnt/sdb?

      add /mnt/sdb? in front of /home 
      this avoids the need to chroot.


top

rsync from tsData box

sudo cp /mnt/sdb?/etc/passwd /mnt/sdb?/etc/shadow /mnt/sdb?/etc/group /mnt/sdb?/home/
dpkg --get-selections --admindir=/mnt/sdb?/var/lib/dpkg >dpkg.out
sudo mv dpkg.out /mnt/sdb?/home/
sudo tar -czf /mnt/sdb?/home/etc.backup.tar.gz /mnt/sdb?/etc/
sudo rsync -avzh /mnt/sdb?/home/ tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber] 2>rsync.log

Restore from Backup

sudo rsync -avzh  tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber]/ /home
sudo dpkg --set-selections < /home/dpkg.out
sudo apt-get -u dselect-upgrade

copy (user passwd) hash from original /etc/shadow

Restore User Permissions

  • Create a New User (oem or Bob or Mark) - with Admin. Privileges
Change From: drwxr-xr-x 23 1001 1001 4096 2011-07-07 13:28 oem

Change To:   chown -R oem:oem /home/oem (recursively for all sub directories)

File Permissions

chmod 774 dir-name (dir)   rwxrwxr--
chmod 664 filename (files) rw-rw-r--

chmod ugo+rwx /dir/file
chmod ugo-rwx /dir/file

top

Stress Test CPU and Chipset

stress --cpu 8 --io 4 --vm  2 --vm-bytes 128M  --timeout 4h

(add --hdd 2 to stress the hard drive as well, though this shouldn't be necessary)

Temperature Test/Display

while  true  ; do uptime ; sensors ; sleep 30s; done | tee temp_load.log

Load lm sensor "utility to read temp/fan" 
-from software center

Hardware & Resource Identification

lshw

sudo lshw (hardware config)

CPU

cat /proc/cpuinfo or more /proc/cpuinfo

Disk Usage

du -sh (-s disk usage)
du -sh /home/bob/Downloads/ (disk usage for Downloads)

top

Available Memory

free –l (available memory)

cat /proc/meminfo

Devices in Use

To see a list of devices currently in use 

cat /proc/devices

AlsaMixer

alsamixer

Printer Linux Foundation

http://www.linuxfoundation.org/
Workgroups -> Open Printing -> Printers

HPLIP

http://hplipopensource.com/hplip-web/downloads.html

top

WineHQ Database

http://www.winehq.org/

wineDB

Download-Wine

Photorec

Burn DVD tsbackup

wodim dev=/dev/sr1 isodir/DiscSpan_15.iso (15 = disk #)
;beep
Retrieved from "http://wiki.freegeek.org/index.php?title=User:Scott/02&oldid=60620"