Linux TCP/IP, GreenIT and more…
I want to test some tools to restore deleted data on EXT3 file system, to make this tests safe on a production server without loosing date I created a virtual HDD with 100MB size that running as a file.
Create a 100MB virtual HDD: Continue reading ‘Ext3 restore data’
The default Nginx maximum body-size of a client request, or maximum file size is 1M. So when you try to upload something larger than 1M, you get the following error: 413: Request Entity Too Large
Create a new configuration file: Continue reading ‘Nginx – Error 413: Request Entity Too Large’
In the last time I get a lot questions and feedback to some older posts (Active/Passive Cluster) where I used DRBD. And actually I never wrote how to setup DRBD and I try to fill this gap now. Also this post will be a new ground for some new ideas and posts related to Active/Passive Clustering with KVM.
DRBD (Distributed Replicated Block Device) is a really cool cluster solution to have radundant data on two or more nodes. Everybody know RAID, DRBD is like RAID 1 over network.
Continue reading ‘DRBD master/slave setup’
Long Long time ago I wrote how I migrated from Xen to OpenVZ. This post will show you how to manage your VE memory.
First you set the veid=yournumberofve and the rest is copy paste ; Look at the examples:
Continue reading ‘OpenVZ adjust RAM’
If you have a mail server at home and your Internet service provider (ISP) has no right PTR record for your assigned IP, you will get trouble the most mail servers will reject you.
Some best examples for mail rejection: gmx.de, mail.ru
This problem can be solved Continue reading ‘Postfix home server’