Rights management on Linux is enough for most use.
In a few words, a file or a directory belongs to the owner and what you can do is positionning some right to this owner, to his group or all other users (= guests).
This is not bad, but sometimes you (or your application) may need more advanced right management, as on the latest windows versions : putting several owners with different rights, inheritance, etc.
There are named ACL (Access List Management) and they are supported on Linux also.
This is not going to be an how-to but just a brief informative introduction to ACL on Linux. You will find many how-to on the web if you need more.
Category Archives: System
Screenlets : widgets for Compiz or Beryl
It is still under heavy development but already nice, usable and quite stable.
I have been using it for 2 weeks now, and did not get any freeze. It just does not have all the options I am sure it will get in the future.
Restoring a MSSQL 2000/2005 database while in production
At my work, I had to overwrite a MSSQL database while in production. The goal was to replace the existing database by one with a new structure.
I tried first the easy way, right clicking on it and trying to take it off line using the menu of Microsoft.
Unfortunately, that didn’t do anything, complaining that several users were accessing it. Of course, trying to restore it directly gave the same message.
I couldn’t find a way to successfully force it through the interface.
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Webmin
If you work with Webmin on Debian, you may have some problems when you download a module which is not available in a package (i.e, Amavis).
When you try to access to it, it may fail and give back an error message like :
Undefined subroutine &main::init_config called at /usr/local/share/webmin/<your_module>/…
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Switched back from Beryl to Compiz
I have run Beryl for months and have seen many huge and nice improvements.
I switched to Beryl soon after the fork from Compiz. At the time, I was on Ubuntu Breezy. The reason of my switch was a major issue with Compiz, making it impossible for my laptop to hibernate. Beryl did it. I could have solved it by myself, maybe, but didn’t have time to dig out desktop things.
Today, it is again some bugs that pushed me to switch back from Beryl to Compiz.
NetSNMP : no response on Debian
You just set up Net SNMP (snmpd), you configured it correctly, you started it and still don’t get any SNMP thing from the outside ? Just local snmpwalk gives some output ?