Hello everyone. I will try to explain my question the best way i can, however my lack of knowledge on the subject-which is the reason for this thread- may make things confusing.
I am currently working on a project for a class, which requires me to "mess around" with linux scheduler. (At this point i should say that i had never used linux till 2 months ago). Now,i will post a link which i assume is very helpful on the subject, Click Here, but still im having trouble. I installed linsched as described,currently have its directory on my home folder, but how can i import the linsched api in my project using codeblocks, and where can i see a documentation of this api?
To make my question as simple as i can, could someone provide me with some easy steps to build a simple linsched project/test or other info, so i can understand how to use it? Thank you for your time. I hope i described my problem well, and i hope i posted it in the right topic..! thanks!
So here's some background information on what we are trying to setup. We have two data centers over 40km apart and one of them runs the webserver (over 80 websites) and we use another machine on the other side to keep backups (typical cpanel backups).
So I have already looked at setting up a failover system (Active/Passive) for the web server using a clustered system running pacemaker and drbd in a test environment and it works fine. Now a team member introduced the CDN concept and we have been looking at having an Active/Active (Using pacemaker, drbd and GFS2 filesystem) setup so that the CDN can load balance the traffic on the two sites and also have the content available incase we lose one data center.
I would like to get your thoughts on this and especially on which setup would be the best for our scenario. Should we just go for the failover system (Active/Passive) or use the CDN. Most of the websites we host are university websites and therefore have significant traffic.
I am unable to write a text file from a windows PC to a folder in Unix. I am told I have no permission. I can see the unix server from network and browse to the folder but I cannot write to it. The permissions of the folder on the unix is drwxrwxrwx.
How can I agrant rwx permissions of a unix folder to a windows user. You kind assistance would be appreciated
My rationale for the bit copy is so you can restore the disk or partition exactly if things go wrong. I work on client systems when this sort of work is necessary, and it is the ONLY way you can be 100% certain that you have a recoverable image. The rsync tool is incredibly useful, and for file-based backups just fine. For device-level backups, not so...
I'd rather not do the bit-copies, but to do a copy of the /dev/sda2's data to another disk (rsync is a good method I use for these purposes ;), then you could try/check with gparted or similar (Hiren's Bootcd have some of these tools) which you can then delete partition sda2, and expand sda1.
The question should be: What do you want to do/achieve inside those VMs?
I recall DOSEMU that is also a VM, but just DOS type 16bit real mode stuff. VMWare, Virtualbox, qemu will run on just about anything 386 or better, however as mentioned before, it won't be that "fast" as you won't have hardware assistance of the later VT-x/vmx/SVM/AMD-V instructions, as is described in http://en.wikipedia.org/wiki/X86_virtualization
It covers pretty much everything from the basics, including partitioning and user management. Right up to much more advanced topics like managing large-scale deployment/configuration of Linux over a network using Puppet.
It also covers package management in Red-hat and Debian/Ubuntu based systems, and covers building and installing software from source too. So the information in the book can be applied to pretty much any Linux distribution.
The material in the book covers a lot of ground. Unless you aim to become a sys-admin for a large network of Linux machines, you probably won't use most of the stuff in the book. But it does contain a lot of very useful info.
The book itself is quite a hefty tome, with 20 chapters and over 1000 pages. It also has a pretty hefty price tag: $49.99 USD.
That said, I got my copy for free a couple of years ago when I renewed my subscription to Linux Format! Heh heh!
Anyway, I find myself referring to it from time to time and would definitely recommend it!