Difference between revisions of "User:Scott/02"
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| − | + | '''Tech Support''' | |
| − | + | -------------------------------- | |
Home Page [[user:scott]] | Home Page [[user:scott]] | ||
Tech Support [[user:scott/02]] | Tech Support [[user:scott/02]] | ||
| Line 14: | Line 14: | ||
<h5>PRINTME - /var/lib/freegeek-extras/printme</h5> | <h5>PRINTME - /var/lib/freegeek-extras/printme</h5> | ||
| + | |||
| + | =Password= | ||
==Backup Password== | ==Backup Password== | ||
*cp /etc/shadow /etc/shadow.bak - (hash of root + user) | *cp /etc/shadow /etc/shadow.bak - (hash of root + user) | ||
| − | + | ==Change Password== | |
passwd [username] | passwd [username] | ||
passwd –e [username] – (change on startup) | passwd –e [username] – (change on startup) | ||
| − | = | + | =User Add-Delete= |
adduser [username] | adduser [username] | ||
adduser [username] admin | adduser [username] admin | ||
userdel [username] | userdel [username] | ||
| − | + | =Updates & Broken Packages= | |
apt-get update | apt-get update | ||
apt-get dist-upgrade | apt-get dist-upgrade | ||
| Line 36: | Line 38: | ||
apt-get purge xxx | apt-get purge xxx | ||
| − | + | =File System Check= | |
fsidk -l | fsidk -l | ||
| Line 43: | Line 45: | ||
shutdown -rF now (reboot, forcing fsck on root filesystem) | shutdown -rF now (reboot, forcing fsck on root filesystem) | ||
| − | + | ==Mount & un-Mount== | |
df -h (show partition booted from) | df -h (show partition booted from) | ||
| Line 53: | Line 55: | ||
umount /dev/sdb1 (sudo) | umount /dev/sdb1 (sudo) | ||
| − | + | ==Badblocks== | |
badblocks -nvs /dev/sda1 | badblocks -nvs /dev/sda1 | ||
| − | + | =Backup Home Directory= | |
*date (e.g. 20121223 for Dec 23 2012) | *date (e.g. 20121223 for Dec 23 2012) | ||
| − | + | ==ssh into tsbackup== | |
ssh XC tsbackup@tsbackup.fglan nautilus | ssh XC tsbackup@tsbackup.fglan nautilus | ||
ctrl-c (to back-out) | ctrl-c (to back-out) | ||
| − | + | ==Backup== | |
sudo cp /etc/passwd /etc/shadow /etc/group /home/ | sudo cp /etc/passwd /etc/shadow /etc/group /home/ | ||
dpkg --get-selections > dpkg.out | dpkg --get-selections > dpkg.out | ||
| Line 75: | Line 77: | ||
dpkg --get-selections --admindir=/mnt/sdb1/var/lib/dpkg >dpkg.out | dpkg --get-selections --admindir=/mnt/sdb1/var/lib/dpkg >dpkg.out | ||
| − | + | ==Restore== | |
sudo rsync -avzh tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber]/ /home | sudo rsync -avzh tsbackup@tsbackup:/var/tsbackup/[date-ticketnumber]/ /home | ||
sudo dpkg --set-selections < /home/dpkg.out | sudo dpkg --set-selections < /home/dpkg.out | ||
| Line 82: | Line 84: | ||
copy (user passwd) hash from original /etc/shadow | copy (user passwd) hash from original /etc/shadow | ||
| − | + | ==Restore User Permissions== | |
*Create a New User (oem or Bob or Mark) - with Admin. Privileges | *Create a New User (oem or Bob or Mark) - with Admin. Privileges | ||
**drwxr-xr-x 23 1001 1001 4096 2011-07-07 13:28 oem | **drwxr-xr-x 23 1001 1001 4096 2011-07-07 13:28 oem | ||
chown –R oem:oem /home/oem (recursively for all sub directories) | chown –R oem:oem /home/oem (recursively for all sub directories) | ||
| − | + | =File Permissions= | |
chmod 774 dir-name (dir) rwxrwxr-- | chmod 774 dir-name (dir) rwxrwxr-- | ||
| Line 95: | Line 97: | ||
chmod ugo-rwx /dir/file | chmod ugo-rwx /dir/file | ||
| − | + | =Stress Test= | |
* [http://wiki.freegeek.org/index.php/CPU_Temperature CPU Temperature] | * [http://wiki.freegeek.org/index.php/CPU_Temperature CPU Temperature] | ||
| Line 104: | Line 106: | ||
*(add --hdd 2 to stress the hard drive as well, though this shouldn't be necessary) | *(add --hdd 2 to stress the hard drive as well, though this shouldn't be necessary) | ||
| − | + | =Hardware & Resource ID= | |
| − | + | ==lshw== | |
sudo lshw (hardware config) | sudo lshw (hardware config) | ||
| − | + | ==CPU== | |
cat /proc/cpuinfo or more /proc/cpuinfo | cat /proc/cpuinfo or more /proc/cpuinfo | ||
| − | + | ==Disk Usage== | |
du -sh (-s disk usage) | du -sh (-s disk usage) | ||
du -sh /home/bob/Downloads/ (disk usage for Downloads) | du -sh /home/bob/Downloads/ (disk usage for Downloads) | ||
| − | + | ||
| + | ==Available Memory== | ||
free –l (available memory) | free –l (available memory) | ||
cat /proc/meminfo | cat /proc/meminfo | ||
| − | + | =Devices= | |
To see a list of devices currently in use | To see a list of devices currently in use | ||
cat /proc/devices | cat /proc/devices | ||
| − | + | ==AlsaMixer== | |
alsamixer | alsamixer | ||
| − | + | ||
| + | ==Printer Drivers== | ||
http://www.linuxfoundation.org/ | http://www.linuxfoundation.org/ | ||
Workgroups -> Open Printing -> Printers | Workgroups -> Open Printing -> Printers | ||
| − | + | ||
| + | ==HPLIP== | ||
http://hplipopensource.com/hplip-web/downloads.html | http://hplipopensource.com/hplip-web/downloads.html | ||
Revision as of 21:15, 20 October 2011
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
PRINTME - /var/lib/freegeek-extras/printme
Password
Backup Password
- cp /etc/shadow /etc/shadow.bak - (hash of root + user)
Change Password
passwd [username] passwd –e [username] – (change on startup)
User Add-Delete
adduser [username] adduser [username] admin userdel [username]
Updates & 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
File System Check
fsidk -l
fsck -fyv /dev/sda1 (f=force y=fix)
shutdown -rF now (reboot, forcing fsck on root filesystem)
Mount & un-Mount
df -h (show partition booted from) ls /media (mounted from GUI) cat /etc/fstab (partitions and devices = mount on start-up)
mount /dev/sdb1 /mnt/xxx
umount /dev/sdb1 (sudo)
Badblocks
badblocks -nvs /dev/sda1
Backup Home Directory
- date (e.g. 20121223 for Dec 23 2012)
ssh into tsbackup
ssh XC tsbackup@tsbackup.fglan nautilus ctrl-c (to back-out)
Backup
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
View error log less rsync.log
Note: on the '''data recovery box''' you will need to add /mnt/sdb1 in front of /home
this avoids the need to chroot.
dpkg --get-selections --admindir=/mnt/sdb1/var/lib/dpkg >dpkg.out
Restore
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
- drwxr-xr-x 23 1001 1001 4096 2011-07-07 13:28 oem
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
Stress Test
while true ; do uptime ; sensors ; sleep 30s; done | tee temp_load.log
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)
Hardware & Resource ID
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)
Available Memory
free –l (available memory)
cat /proc/meminfo
Devices
To see a list of devices currently in use
cat /proc/devices
AlsaMixer
alsamixer
Printer Drivers
http://www.linuxfoundation.org/ Workgroups -> Open Printing -> Printers
HPLIP
http://hplipopensource.com/hplip-web/downloads.html