Linux, programming and more
When somebody present something, you are sitting and thinking when is it over.
With this little macro you can visualize the slide/presentation progress with a bar in the bottom of each slide.
How to use this macro:
Press ALT+F11 to open Visual Basic editor
Add a new VBA Modul and paste this code below.
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I want to show you how to create a LVM snapshot on the fly, before you install some nasty updates.
I have my KVM virtual machine (/dev/vg0/Webserver) and want to upgrade it, before I go on, I want to create a LVM snapshot. In worst case it can change back to this state.
1 | lvcreate -L 5000 -s -n "7.9_wheezy" /dev/vg0/devel.drobot.de |
– L 5000 is the size in MB
-s flag is to create a snapshot
-n 7.9_wheezy is the name of new logical volume
If something goes wrong, go back to previously created snapshot:
1 2 3 | lvchange -a n /dev/vg0/devel.drobot.de lvconvert --merge /dev/vg0/7.9_wheezy lvchange -a y /dev/vg0/devel.drobot.de |
Attention!
If you delete your origin volume your snapshot will be automatically deleted!
Some months ago I wrote how to combine Apache2 and php5-fpm, now I want to show you how you could migrate to nginx.
The netcraft webserver survey from May 2011 shows that nginx is still increasing slightly and is currently providing access to 7.35% of all monitored domains:
Selv compiling a bit old-school, that’s why I use packages from Dotdeb: [Read more…]
It was another great weekend with DIY idea:)
Its a kind of mini lamp for the desk with nice colors.
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local_sender_blacklist
This is a onboard exim possibility to blacklist special addresses, its only a optional file which contains a list of envelope senders whose messages will be denied;
1 | 550-sender envelope address noreply@rustock.net is locally blacklisted here |
Example of content:
1 2 3 | cat /etc/exim4/local_sender_blacklist noreply@rustock.net parker.ball@freeemailservice.info |
Restart or reload of exim is not required.