Linux related. Random bits to remember.
A crude way to release e-mails from amavisd-new quarantine.
As amavisd-release works well for file based quarantines, but sometimes just a plain telnet is all You’ve got.
First find email id from logs. Something like ChRQj9iij3-V is probably ok. Then more data can be found from MySQL, where msgs is a table in standard amavisd-new MySQL schema.… Read the rest
Linux software raid or md raid can be used as a boot device. But only if that raid device is a RAID-1 or mirror.
As boot loader, grub in this case, does not know anything about software raid that is managed by kernel, it needs to be installed on both devices on that software mirror.… Read the rest
mdadm - -add /dev/mdX /dev/sdaY
where /dev/mdX is the array that has a failed member, and /dev/sdaX is a partition that needs to be added.
/dev/sda needs to be partitioned before though.
Then it is only a matter of time to see Your arrays being syncronized.
watch -n1 'cat /proc/mdstat'
That array can be in use during that syncronization process.
dd if=/dev/sda | ssh user@host "dd of=/directory/imagefile"
or with compression:
dd if=/dev/sda | bzip2 |ssh user@host "dd of=/directory/imagefile"
or with compression on the receiving side:
dd if=/dev/sda | ssh user@host "bzip2 | dd of=/directory/imagefile"
This example can be expanded easily as:
cat filename |ssh user@host "dd of=/directory/filename"
also works quite fine.
locate kdmrc
if slocate is installed and database is up to date.
In Gentoo and KDE 3.5 it is in
/usr/kde/3.5/share/config/kdm/kdmrc
ssh -L 3387:192.168.0.10:3389 -l user -N ssh_box
on Your local client machine.
3387 - local port to use
192.168.0.10 - remote server where that service is running You need to connect to
3389 - the TCP port that remote service is running on
user - ssh username of course
ssh_box - ssh server Your service is behind of.
/etc/ssh/ssh_config
and enable